Some months ago, a fellow Asherman’s syndrome (AS) sufferer who writes the blog Alternative Asherman’s had a missed miscarriage after AS and wrote of her experience (Three steps backwards) using misoprostol, linking it to the blog about my own experience using misoprostol. I feel it is necessary to clarify certain points in her experience as they may be inadvertantly misleading and appear to implicate misoprostol in what apparently ensued. She has also since updated her blog to clarify her interpretation of her experience.
Misoprostol is a non-invasive uterotonic drug that expels the uterine contents in a way that is analogous to a natural miscarriage. Scarring and subsequent adhesions are the result of physical injury (or severe infection) to the basal endometrium. In fact management of miscarriage with misoprostol has been shown to prevent adhesion formation compared to blind D&C (Tam WH, Lau WC, Cheung LP, Yuen PM, Chung TK. J Am Assoc Gynecol Laparosc.2002; 9 (2): 182–185.). Misoprostol can be used to expel the contents of the uterus for either pregnancy termination, after a missed or incomplete miscarriage has occured or for labour induction. It also dilates the cervix and is useful prior to hysteroscopic surgery. Unfortunately, misoprostol is often referred to as a 'pregnancy termination drug' despite its various uses.
With regards to misoprostol's efficacy it should be noted that she obtained Chinese herbs from her accupuncturist to help 'prepare her body for miscarriage'. (See her comment below). This is unnecessary. It is not advised to mix Chinese or any other alternative or over the counter drug/herb with the treatment prescribed by your qualified ObGyn. Any responsible qualified homeopath/alternative medicine practitioner (some are MDs) would not dispense drugs whose effects and interactions with drugs prescribed by another specialist is not known and has not been vigorously trialed. There is no regulation or standardization of alternative drugs (herbs, extracts, etc.) so their concentrations, compositions quality and therefore effects and interactions vary greatly. We don't know if using these herbs could have interfered with misoprostol's effect in some way (for example, reducing its efficacy by blocking the same receptors targeted by misoprostol).
She was told that she developed IUA after using misoprostol and prior to hysteroscopic surgery to remove retained products. Her hysteroscopic surgeon said that the RPOC from an incomplete evacuation led to fibrous scar tissue formation. While I have heard about this anecdotally, I have not seen any reports of women developing IUA from RPOC in the absence of severe infection. It is also difficult to reconcile the observation of dense scar tissue with products retained for just 5 weeks when scar tissue is not complete until about 8 weeks. Anecdotally, I personally had substantial retained products for 3 weeks after my second trimester miscarriage treated with misoprostol and did not develop IUA. RPOC and retained placenta can be managed conservatively (under medical supervision).
However, she does mention that she may have already had some recurrence of IUA before her pregnancy as her Obstetrician noticed what appeared to be synechiae on ultrasound. This appears to be an important clue.
She says that there were dense adhesions whereas she previously had had only mild adhesions at initial diagnosis.One possible way to explain the deterioration of her condition could lie in the initial treatment of her AS: she had a uterine cook balloon inserted following adhesiolysis. While I underwent the same procedure without any apparent complications like hundreds of others (a proportion of whom have gone on to have children), it is possible that if the stent was not removed properly, or if it somehow adhered to raw surfaces in the uterus, it could have caused damage on removal (the balloon is deflated and simply pulled out). This explanation would also be consistent with her ObGyn's observation of scar tissue during a prenatal scan. Note also that there is limited data from studies on the benefits of using the Foley catheter and IUDs after surgical lysis and no controlled or comparative trials on the Cook balloon. Some Asherman’s syndrome specialists even believe that stents can stunt endometrial regrowth.
A well researched and routinely used drug like misoprostol should not be treated with suspicion compared to many other medical and even pseudo medical treatments the same women undergo without questioning, from unproven and potentially harmful altnernative drugs to contraversial fertility therapies to treatments of Asherman’s syndrome on which there are comparatively less data and of a lower quality. This leads me to wonder whether it is the attitude of the treating doctor(s) which influences patients' perceptions of treatments. I agree that more doctors need to be trained in the use of misoprostol for miscarriage (and in particular among women with a history of AS) and that a followup hysteroscopy may be needed depending on clinical symptoms and gestational age at time of miscarriage to ensure there are no retained products of conception. Followup hysteroscopy may also be necessary in women with a history of AS if the miscarriage passed naturally as there is a possible tendency towards retained tissue from scarring. We already know that women with past AS are at an increased risk of abnormally invasive placentation such as placenta accreta. Retained tissue and placenta accreta may be different ends of a spectrum of abnormalities associated with placental invasion in a defective endometrium. Whether misoprostol is necessary to evacuate miscarriages that occur very early on in the pregnancy (prior to 7 weeks) is also questionable. These can be managed expectantly. It is especially risky to perform a blind D&C in women who already have suffered damage to their uterine lining. It is time for miscarriage management as a whole to be reviewed in light of advances in medical therapy and hysterosopic alternatives.
Showing posts with label ERPC. Show all posts
Showing posts with label ERPC. Show all posts
Tuesday, January 4, 2011
Tuesday, June 15, 2010
Focus on the medical literature: Misoprostol for early pregnancy failure is underused despite efficacy and safety .
Article: Provider knowledge, attitudes, and treatment preferences for early pregnancy failure.
Dalton VK, Harris LH, Gold KJ, Kane-Low L, Schulkin J, Guire K, Fendrick AM. Am J Obstet Gynecol. 2010 Jun;202(6):531.e1-8. Epub 2010
The American Journal of Obstetrics & Gynecology has recently published an article, ‘Provider knowledge, attitudes and treatment preferences for early pregnancy failure’ (EPF),which explores the relationship between health provider attitudes and associated factors and the methods they use for treating miscarriage. Ever since acquiring Asherman’s syndrome from a D&C for an incomplete miscarriage because I was spuriously denied medical management, I have been curious to find out what proportion of Obstetricians offer misoprostol to their patients. This will vary from country to country. My understanding is that many countries in continental Europe are more progressive in adopting misoprostol use than the US, England, Australia and New Zealand. I know from personal experience that in Australia the use of misoprostol for first trimester or early second trimester miscarriage management is rare. I have also learned that even when it is used, the hospital protocols are strict and dosages are in accordance with only second trimester termination, as illogical and ineffective as this may be for other gestational ages.
My interest in the article of course stems from an angle of Asherman’s syndrome prevention, whereas cost effectiveness was the main interest of the study. For this reason, the researchers were focused on the frequency of misoprostol and office uterine evacuations, both of which are far less expensive than operating room (OR) surgical evacuations. This is mainly due to operating room and anesthesiologist costs of OR D&C (the patient is awake during in-office D&C). Thus, the authors consider all treatment options (expectant or medical management, office, and OR procedures) to be reasonable, and that patient preferences should be the deciding factor in treatment choice. It should be mentioned that the same group authored case reports alerting that even gentle manual vacuum aspiration (MVA) (a type of office uterine evacuation) can lead to symptomatic IUA ie. Asherman’s syndrome (1). This is not surprising given that blind instrumentation is involved.
There is a plethora of clinical studies in the medical literature supporting the efficacy and safety of misoprostol (click here) for treatment of early pregnancy failure (2,3) as well as for abortion. Yet there is a discrepancy between the established research findings and its level of use in practice. Although the problem of failing to adopt evidence-based treatments is a common problem it is especially so in women’s health (4,5,6). Therefore, practitioners are usually slow to offer new treatment methods, even when these are known to be effective, safe, and offer advantages to traditional treatments. Thus, clinicians have the power to influence patient treatment, rather than letting the patient choose how her miscarriage is managed (7,8). It is unclear whether all treatment options are routinely offered or available to women who experience early pregnancy failure (9).
The study hypothesized that most providers do not routinely offer patients all acceptable treatment options, and that factors such as knowledge and perceived obstacles to adopting new methods might be associated with sex, specialty, years of practice, and training.
In particular they sought answers from health providers with respect to each treatment method regarding :
-attitudes about treatment safety (and I would add efficacy) (Treatment Preference)
-perceptions of patient acceptance of options (Perception of patient preferences)
-provider comfort with the options (Use of treatments)
For misoprostol and office uterine evacuations they looked at additional factors.
The study was carried out as a written survey which was sent out to Obstetrician-gynecologists (‘Obgyns’), certified nurse midwives/midwives (‘nurses/midwives’), and family physicians (‘GPs’) in the United States.
From the point of view of Asherman’s syndrome prevention, the focus will be on the paper’s relevant outcomes with regards to use of the non-invasive alternatives misoprostol and expectant management compared to OR surgical evacuation (ie. D&C). Also, I am adding a few interpretations which were not mentioned in the article. These are in blue font.
Conclusions
-EPF management is still largely dominated by operating room uterine evacuations (Obgyns) and expectant management (nurses/midwives and GPs) even though the efficacy and safety of misoprostol is well established.
-targeting inaccurate beliefs about the safety of misoprostol and clarifying patient preferences may increase the willingness of providers to adopt new practices to meet patient needs.
Note: -This study does not delineate how much patient preferences account for current treatment patterns, however:
-Women vary in their treatment preferences, therefore providing access to a wide range of services will improve care.
-clinical trials suggest that misoprostol is acceptable and may be preferred by many women over surgical evacuation especially when successful and when surgery is performed without anesthesia eg. in office (10,11,12,13).
-Improvements in services for EPF, one of the most common clinical problems encountered by women of reproductive age, will have a strong impact on patient experience and satisfaction (I would add also from the point of view of Asherman’s syndrome prevention).
REFERENCES
1. Dalton, VK, Saunders, NA, Harris, LH, Williams, JA, and Lebovic, DI. Intrauterine
adhesions after manual vacuum aspiration for early pregnancy failure. Fertil Steril
2006;85(6):1823 e1-3.
2. Zhang, J, Gilles, JM, Barnhart, K, Creinin, MD, Westhoff, C, and Frederick, MM.
A comparison of medical management with misoprostol and surgical management
for early pregnancy failure. N Engl J Med 2005;353(8):761-9.
3. Trinder J, Brocklehurst P, Porter R, Read M, Vyas S, Smith L. Management of miscarriage: expectant, medical, or surgical? Results of randomized controlled trial (miscarriage treatment (MIST) trial). BMJ 2006;332:1235-40.
4. Cabana MD, Kim C. Physician adherence to preventive cardiology guidelines for women. Women’s Health Issues 2003;13:142-9.
5. Haagen EC, Nelen WL, Hermens RP, Braat DD, Grol RP, Kremer JA. Barriers to physician adherence to a subfertility guideline. Hum Reprod 2005;20:3301-6.
6. Harper CC, Blum M, de Bocanegra HT, et al. Challenges in translating evidence to practice: the provision of intrauterine contraception. Obstet Gynecol 2008;111:1359-69.
7. Gurmankin AD, Baron J, Hershey JC, Ubel PA. The role of physicians’ recommendations in medical treatment decisions. Med Decis Making 2002;22:262-71.
8. Molnar AM, Oliver LM, Geyman JP. Patient preferences for management of first-trimester incomplete spontaneous abortion. J Am Board Fam Pract 2000;13:333-7.
9. Dalton VK, Harris LH, Clark SJ, Cohn L, Guire K, Fendrick AM. Treatment patterns for early pregnancy failure in Michigan. J Women’s Health 2009;18:1-7.
10. Moodliar, S, Bagratee, JS, and Moodley, J. Medical vs. surgical evacuation of firsttrimester spontaneous abortion. Int J Gynaecol Obstet 2005;91(1):21-6.
11. Bique, C, Usta, M, Debora, B, Chong, E, Westheimer, E, and Winikoff, B. Comparison of misoprostol and manual vacuum aspiration for the treatment of incomplete abortion. Int J Gynaecol Obstet 2007;98(3):222-6.
12. Lee, DT, Cheung, LP, Haines, CJ, Chan, KP, and Chung, TK. A comparison of the psychologic impact and client satisfaction of surgical treatment with medical treatment of spontaneous abortion: a randomized controlled trial. Am J Obstet Gynecol 2001;185(4):953-8.
13. Graziosi GC, Bruinse HW, Reuwer PJ, Mol BW. Women’s preferences for misoprostol in case of early pregnancy failure. Eur J Obstet Gynecol Reprod Biol 2005;124:184-6.
Dalton VK, Harris LH, Gold KJ, Kane-Low L, Schulkin J, Guire K, Fendrick AM. Am J Obstet Gynecol. 2010 Jun;202(6):531.e1-8. Epub 2010
The American Journal of Obstetrics & Gynecology has recently published an article, ‘Provider knowledge, attitudes and treatment preferences for early pregnancy failure’ (EPF),which explores the relationship between health provider attitudes and associated factors and the methods they use for treating miscarriage. Ever since acquiring Asherman’s syndrome from a D&C for an incomplete miscarriage because I was spuriously denied medical management, I have been curious to find out what proportion of Obstetricians offer misoprostol to their patients. This will vary from country to country. My understanding is that many countries in continental Europe are more progressive in adopting misoprostol use than the US, England, Australia and New Zealand. I know from personal experience that in Australia the use of misoprostol for first trimester or early second trimester miscarriage management is rare. I have also learned that even when it is used, the hospital protocols are strict and dosages are in accordance with only second trimester termination, as illogical and ineffective as this may be for other gestational ages.
My interest in the article of course stems from an angle of Asherman’s syndrome prevention, whereas cost effectiveness was the main interest of the study. For this reason, the researchers were focused on the frequency of misoprostol and office uterine evacuations, both of which are far less expensive than operating room (OR) surgical evacuations. This is mainly due to operating room and anesthesiologist costs of OR D&C (the patient is awake during in-office D&C). Thus, the authors consider all treatment options (expectant or medical management, office, and OR procedures) to be reasonable, and that patient preferences should be the deciding factor in treatment choice. It should be mentioned that the same group authored case reports alerting that even gentle manual vacuum aspiration (MVA) (a type of office uterine evacuation) can lead to symptomatic IUA ie. Asherman’s syndrome (1). This is not surprising given that blind instrumentation is involved.
There is a plethora of clinical studies in the medical literature supporting the efficacy and safety of misoprostol (click here) for treatment of early pregnancy failure (2,3) as well as for abortion. Yet there is a discrepancy between the established research findings and its level of use in practice. Although the problem of failing to adopt evidence-based treatments is a common problem it is especially so in women’s health (4,5,6). Therefore, practitioners are usually slow to offer new treatment methods, even when these are known to be effective, safe, and offer advantages to traditional treatments. Thus, clinicians have the power to influence patient treatment, rather than letting the patient choose how her miscarriage is managed (7,8). It is unclear whether all treatment options are routinely offered or available to women who experience early pregnancy failure (9).
The study hypothesized that most providers do not routinely offer patients all acceptable treatment options, and that factors such as knowledge and perceived obstacles to adopting new methods might be associated with sex, specialty, years of practice, and training.
In particular they sought answers from health providers with respect to each treatment method regarding :
-attitudes about treatment safety (and I would add efficacy) (Treatment Preference)
-perceptions of patient acceptance of options (Perception of patient preferences)
-provider comfort with the options (Use of treatments)
For misoprostol and office uterine evacuations they looked at additional factors.
The study was carried out as a written survey which was sent out to Obstetrician-gynecologists (‘Obgyns’), certified nurse midwives/midwives (‘nurses/midwives’), and family physicians (‘GPs’) in the United States.
From the point of view of Asherman’s syndrome prevention, the focus will be on the paper’s relevant outcomes with regards to use of the non-invasive alternatives misoprostol and expectant management compared to OR surgical evacuation (ie. D&C). Also, I am adding a few interpretations which were not mentioned in the article. These are in blue font.
| D&C Treatment preference-Obgyns preferred uterine evacuation in the operating room over other methods (45.7%)(No surprise there…) Perception of patient preferences -Interestingly, Obgyns believed OR D&C was the more preferable treatment than their patients (28.4% vs 15.5%; P<.001, perceived Obgyn and patient rank, respectively). It is unclear whether this reflects a higher level of confidence than their patients in the procedure or if the preference is influenced by financial factors. Note that 21.8% of Obgyns in the study expressed concern regarding reimbursement for in office uterine evacuations- the identical procedure to their self-declared preferred method, the much costlier operating room D&C including anesthesiologist. Use of treatments -Obgyns reported using OR D&C more than the other options and nurses/midwives and GPs. -38.9% of Obgyns used D&C in over half of all patients in the past 6 months. |
| Expectant management Treatment preference -Nurses/midwives and GPs were the most likely to prefer expectant management (55.2% and 64.5% , respectively) -Obgyns were the least likely to report expectant management as their most preferred treatment Perception of patient preferences -Health provider’s belief regarding patient preference of expectant management mirrored their own. Use of treatments -Obgyns were less likely than the others to use expectant management (12.3% compared to 30.4% and 43.4% for nurses/midwives and GPs, respectively). |
| Misoprostol Treatment preference -Obgyns, nurses/midwives and GPs chose misoprostol as the second preferred treatment method (33.2%, 61.8% and 60.7% respectively). Perception of patient preferences -Health provider’s belief regarding patient preference of misoprostol management mirrored their own. Use of treatments Misoprostol (along with office uterine evacuations) were the least commonly used treatment options. -Most providers had not used misoprostol at all in the past 6 months for EPF treatment. - Over the last 6 months, 52.7% of Obgyns reported not using it even once. - Obgyns were still more likely than the others to use misoprostol but only 5% of them reported using it in over half of their patients in the last 6 months. -67.9% and 84.1% of nurses/midwives and GPs, respectively, reported not ever using misoprostol in the last 6 months. |
| Provider factors influence on use of misoprostol -sex and race: Not associated with use of misoprostol -Safety: providers who believed that misoprostol is safe used it more than those that did not. Disturbingly, 29.7% of Obgyns, 36.2% of nurses/midwives, and 37.8% of GPs did not agree with the statement “Misoprostol is safe.” (This mindset counters evidence-based medicine and requires further examining). -Low patient demand: 34.7% of GPs claimed little patient demand was a barrier, versus 18.2% of Obgyns and 15.7% of nurses/midwives. (Is this really a valid excuse not to at least offer it?) -prior induced abortion training: Not significantly associated with misoprostol use. (I wonder if training in misoprostol use specifically for EPF management exists) -Other perceived obstacles to using misoprostol included lack of surgical or nursing backup/support. (Paradoxically these do not appear to hinder the preference of nurses/midwives or GPs for expectant management). |
Conclusions
-EPF management is still largely dominated by operating room uterine evacuations (Obgyns) and expectant management (nurses/midwives and GPs) even though the efficacy and safety of misoprostol is well established.
-targeting inaccurate beliefs about the safety of misoprostol and clarifying patient preferences may increase the willingness of providers to adopt new practices to meet patient needs.
Note: -This study does not delineate how much patient preferences account for current treatment patterns, however:
-Women vary in their treatment preferences, therefore providing access to a wide range of services will improve care.
-clinical trials suggest that misoprostol is acceptable and may be preferred by many women over surgical evacuation especially when successful and when surgery is performed without anesthesia eg. in office (10,11,12,13).
-Improvements in services for EPF, one of the most common clinical problems encountered by women of reproductive age, will have a strong impact on patient experience and satisfaction (I would add also from the point of view of Asherman’s syndrome prevention).
REFERENCES
1. Dalton, VK, Saunders, NA, Harris, LH, Williams, JA, and Lebovic, DI. Intrauterine
adhesions after manual vacuum aspiration for early pregnancy failure. Fertil Steril
2006;85(6):1823 e1-3.
2. Zhang, J, Gilles, JM, Barnhart, K, Creinin, MD, Westhoff, C, and Frederick, MM.
A comparison of medical management with misoprostol and surgical management
for early pregnancy failure. N Engl J Med 2005;353(8):761-9.
3. Trinder J, Brocklehurst P, Porter R, Read M, Vyas S, Smith L. Management of miscarriage: expectant, medical, or surgical? Results of randomized controlled trial (miscarriage treatment (MIST) trial). BMJ 2006;332:1235-40.
4. Cabana MD, Kim C. Physician adherence to preventive cardiology guidelines for women. Women’s Health Issues 2003;13:142-9.
5. Haagen EC, Nelen WL, Hermens RP, Braat DD, Grol RP, Kremer JA. Barriers to physician adherence to a subfertility guideline. Hum Reprod 2005;20:3301-6.
6. Harper CC, Blum M, de Bocanegra HT, et al. Challenges in translating evidence to practice: the provision of intrauterine contraception. Obstet Gynecol 2008;111:1359-69.
7. Gurmankin AD, Baron J, Hershey JC, Ubel PA. The role of physicians’ recommendations in medical treatment decisions. Med Decis Making 2002;22:262-71.
8. Molnar AM, Oliver LM, Geyman JP. Patient preferences for management of first-trimester incomplete spontaneous abortion. J Am Board Fam Pract 2000;13:333-7.
9. Dalton VK, Harris LH, Clark SJ, Cohn L, Guire K, Fendrick AM. Treatment patterns for early pregnancy failure in Michigan. J Women’s Health 2009;18:1-7.
10. Moodliar, S, Bagratee, JS, and Moodley, J. Medical vs. surgical evacuation of firsttrimester spontaneous abortion. Int J Gynaecol Obstet 2005;91(1):21-6.
11. Bique, C, Usta, M, Debora, B, Chong, E, Westheimer, E, and Winikoff, B. Comparison of misoprostol and manual vacuum aspiration for the treatment of incomplete abortion. Int J Gynaecol Obstet 2007;98(3):222-6.
12. Lee, DT, Cheung, LP, Haines, CJ, Chan, KP, and Chung, TK. A comparison of the psychologic impact and client satisfaction of surgical treatment with medical treatment of spontaneous abortion: a randomized controlled trial. Am J Obstet Gynecol 2001;185(4):953-8.
13. Graziosi GC, Bruinse HW, Reuwer PJ, Mol BW. Women’s preferences for misoprostol in case of early pregnancy failure. Eur J Obstet Gynecol Reprod Biol 2005;124:184-6.
Friday, May 14, 2010
Doctor’s orders: in support of Ashermans syndrome prevention and/or alternatives to D&C.
Here's what the doctors have written over the years in support of preventing Asherman's syndrome from occuring and more recently, in support of alternative methods to D&C for miscarriage management. This list is not exhaustive and I may add to it in future. There is so much evidence in the medical literature and knowledge among some doctors at least, that it is difficult to reconcile it with current medical practices. 'Translational research' might be the current buzz word at research centers, hospitals and universities, but how quickly this progress is incorporated into routine or widespread practice is entirely another matter. This is where patients need to speak up to encourage change, and why patients need to educate themselves and others first. Reading the research is the only way to get an overall view of the established facts rather than relying only on second hand information from others who may have vested interests or other agendas.
(my additions are in blue)
1. Toaf and Ballas, 1978 (1):
"Peurperal curettage…was discontinued in Israel after publication of Asherman’s observations.”
This is not so in the US, UK, Australia and many other countries. Also, curettage remains standard care for treating miscarriage in many countries (while abortion is now usually carried out medically).
2. Li et al, 2001 (2):
After vaginal delivery, a retained placenta may cause a risk to maternal health because of hemorrhage or infection. …manual removal of the retained placenta is a routine procedure. ..This invasive procedure increases risk of trauma*, rupture of uterus, hemorrhage, postpartum infection, and anesthetic complications.”
* Asherman’s syndrome may result
“In all 18 parturients, spontaneous expulsion of the placenta developed in an average interval of 12 min (range from 5 to 35 min) after rectal insertion of misoprostol.”
3. Friedler et al, 1993 (3):
“The incidence of IUA might be lower following medical evacuation of the uterus, thus avoiding any intra-uterine instrumentation; however, use of progesterone antagonists (ie, mifepristone) for this purpose is not yet approved by the Israeli Ministry of Health.”
4. Chapman and Chapman, 1990 (4):
“One must also note that the suction curette is capable of causing synechiae, usually, however in the region of the internal os.”
“It is noteworthy that, of the 11 patients with isthmus stenosis, six of them were attributable to termination of pregnancy, of which all but one had been performed by suction curettage”
“It goes without saying that, in view of the seriousness of the sequelae, the best management is prevention…”
3. Tam et al, 2002 (5):
“No cases of IUA were found in patients managed conservatively or by medical evacuation, whereas 2 cases (7.7%) of filmy IUA were detected in those managed by surgical evacuation.”
“We therefore recommend expectant management and medical evacuation as first-line treatment for complete abortion* and incomplete abortion*, respectively. Surgical evacuation should be the treatment of choice when {these methods} fails or is contraindicated.”
*ie miscarriage
6. Goldenberg et al, 1997 (6):
“Selective curettage of residual trophoblastic tissue directed by hysteroscopy is an easy and short procedure and might be preferable to conventional, nonselective, blind curettage.”
“…areas not covered by residual tissue…are not subject to surgical trauma during the selective procedure and presumably are therefore exposed to lower risks of inflammation, scarring and adhesion formation”
“Incomplete removal of the residua is more likely to occur during repeated conventional curettage, even if guided by ultrasonography, as had occurred in two of our patients. Direct visualization of the cavity allows…the exact location and extent of the residual tissue to be resected.”
7. Yu et al, 2008 (7):
“Prevention of Asherman Syndrome
Prevention is always better than cure. To prevent the formation of endometrial fibrosis and adhesions, it is essential that any trauma to the uterus be avoided, especially in the pregnant or postpartum state.”
They go on to recommend:
“Avoid postpartum or postabortion curettage”
“Diagnosis of retained products of conception …present a clinical challenge.
…Saline infusion sonohysterography (SHG) has enhanced our ability to diagnose retained products of conception (8)”
“…transvaginal B-mode ultrasonography combined with color velocity imaging and pulsed Doppler to detect retained trophoblastic tissue…could be useful to…select patients suitable for conservative management.(9)”
“Transvaginal duplex Doppler ultrasonography is also an effective noninvasive method for evaluating patients with persistent postpartum hermorrhage (10).”
"…hysteroscopy should be considered an effective method for diagnosis and treatment of retained products of conception." They cite the Goldenberg et al (6) study (see above).
…
“Select medical management of miscarriages
When termination of early pregnancy is necessary, medical treatment should be considered instead of surgical options.”
They cite the Tam et al study (5)(see above).
“Since its introduction, the uptake of medical abortion has been steadily increasing in countries where it has been available for routine use….Similarly, in the management of incomplete miscarriage or delayed miscarriage, expectant or medical treatment should be considered.”
7. Chung et al, 1995 (11):
“The accepted management of spontaneous abortion has not changed substantially in 60-70 years.”
“The policy of routine, universal evacuation of retained products of conception (ERPC) became the accepted form of management around the 1930s to combat [these*] complications. However, this approach may no longer be appropriate in all cases.”
*hemorrhage, infection.
“…in the United Kingdom, 90% of spontaneous abortions are managed [by ERPC] (12). Confidence in routine ERPC as the unquestioned ‘gold standard’ may no longer be justified. There may be alternative approaches that are less invasive but equally effective without incurring greater morbidity.”
“Transvaginal sonography can identify approximately one in three women with a spontaneous abortion who do not have a significant amount of retained tissue in the uterus.”
“Surgical intervention in {women who do not have a significant amount of retained tissue in the uterus} may unnecessarily incur iatrogenic complications without therapeutic gain.”
8. Demetroulis et al, 2001 (13):
“Surgical curettage under anaesthesia accounts for almost three-quarters of emergency gynaecological operations performed in the UK (14). However, dilatation and suction evacuation of the uterus under anaesthesia has certain morbidity, such as the risk of anaesthesia, uterine perforation, intrauterine adhesions, cervical trauma, and infections leading to infertility, pelvic pain and increased chance of ectopic pregnancy.”
9. Moodliar et al, 2005 (15):
“Moreover, surgical evacuation of retained products of conception (ERPC) is performed in the operating room, which significantly increases costs. Inherent in the procedure are the possible complications of perforation, hemorrhage, cervical trauma, intrauterine adhesions and postinstrumentation endometritis.”
“As an alternative, medical management has been found to be cost-effective and associated with fewer complications…Yet in South Africa*, incomplete abortion is still being managed by surgical evacuation.”
*in Australia and in many other countries too!
10. Muffley et al, 2002 (16):
“Curettage has been traditionally used as the surgical method of treatment. It has been estimated that approximately 100,000 uterine curettages are performed annually in the United States, at a total yearly cost of >100 million (17). Uterine curettage is associated with …hemorrhage and infection. Uterine adhesions, impaired future fertility, cervical trauma, uterine perforation, and anesthesia errors are also other potential sequelae of curettage.”
“In the late 1980s single-dose methotrexate therapy was introduced for the treatment of unruptured ampullary ectopic gestations (18). Nearly 10 years later, this medical therapy has replaced laparotomy or laparoscopy in many circumstances (19). At this time, however, medical treatment of early pregnancy failure is still in its infancy in the United States. On completion of multicenter randomized clinical trials, we believe that medical treatment will replace surgical therapy as the initial treatment of early pregnancy failure.”
(I hope so!)
Comment by Dr Lisa Fall:
“Firstly, as the trend toward later childrearing continues, we are faced with an increased incidence of pregnancy failure because of advancing gestational [ sic maternal] age. Our patients are interested in noninvasive options for treatment to avoid possible complications that may have an impact on future fertility.”
(Yup, that was me, but I was refused)
11. Zhang et al, 2005 (20):
“For most of the 20th century, dilatation and curettage was the commonly accepted approach to early pregnancy failure. This practice can be traced back to the late 19th and early 20th centuries, when illegally induced abortions commonly resulted in hemorrhage and sepsis (21). With the legalization of abortion and the availability of antibiotics, these problems have become rare. In more recent years, the medical community began to question whether immediate evacuation by surgical intervention was necessary for uncomplicated cases of early pregnancy failure (12,17).”
12. Stockheim et al, 2006 (22):
“Over the past decade, elective medical termination of pregnancy using a protocol that includes mifepristone and misoprostol was accepted into wide practice. This drug regimen was consistently shown to be associated with high success rates of 90-95% (23-26). However, medical treatment of pregnancy failure (blighted ovum or spontaneous abortion) has not yet gained wide acceptance.”
“Misoprostol is an effective and safe treatment for early pregnancy failure and could replace surgical curettage in over two-thirds of the patients.”
13. Creinin et al, 2006 (27):
“As clinicians and researchers, we must ask why women with an undesired normal pregnancy can receive a treatment regimen that is more effective than that tested for women with a desired abnormal pregnancy. The information presented in this analysis will allow us to better tailor misoprostol treatment for early pregnancy failure.”
I would also add, why women with an undesired normal pregnancy only have access to the mifepristone/misoprostol regimen which preserves fertility while those who miscarry do not.
14. Pang et al, 2001 (28):
“Misoprostol is justified as a first line treatment in the management of miscarriage in all cases because firstly it will avoid surgical intervention altogether in a proportion and secondly, in those who need it, misoprostol reduces surgery-related morbidity, mainly by priming the cervix (29.)”
15. Blanchard et al, 2004 (30):
“A growing body of research evidence indicates that medical treatment of incomplete abortion with misoprostol is an effective alternative to surgical intervention. Misoprostol could be an important alternative to dilatation and curettage or manual vacuum aspiration for treatment of incomplete abortion, allowing women to avoid surgical intervention and the attendant risks. Misoprostol is inexpensive and widely available and may also be more acceptable to women than the current standard of care.”
16. Shaw D, The International Federation of Gynecology and Obstetrics (FIGO) President (31):
“Furthermore, women have the right to benefit from advances in scientific knowledge and since women brought unapproved, reproductive health use of misoprostol to the attention of health professionals, it is especially fitting that they now benefit from the research into such use.”
17. The American College of Obstetricians and Gynecologists (ACOG) Committee Opinion, 2009 (32):
“In addition, there is increasing evidence that misoprostol is a safe, effective,and acceptable method to achieve uterine evacuation for women needing postabortion* care.”
“Misoprostol may be used to treat women with an incomplete and missed abortion.”
* Postabortion care: “… refers to a specific set of services for women experiencing problems from all types of spontaneous or induced abortions.”
REFERENCES
1. Toaff R, Ballas S (1978). Traumatic hypomenorrhea-amenorrhea (Asherman's syndrome). Fertil. Steril. 30 (4): 379–87.
2. Li YT, Yin CS, Chen FM. Rectal administration of misoprostol for the management of retained placenta- a preliminary report. Chinese Medical Journal (Taipei) 2001;64:721-4.
3. Friedler S, Margalioth EJ, Kafka I, Yaffe H. (1993). Incidence of postabortion intra-uterine adhesions evaluated by hysteroscopy: a prospective study. Hum Reprod 8 (3): 442–444.
4. K Chapman and R Chapman. Asherman's syndrome: a review of the literature, and a husband and wife's 20-year world-wide experience. J R Soc Med. 1990 September; 83(9): 576–580.
5. Tam WH, Lau WC, Cheung LP, Yuen PM, Chung TK. (2002). Intrauterine adhesions after conservative and surgical management of spontaneous abortion. J Am Assoc Gynecol Laparosc. 9 (2): 182–185.
6. Goldenberg, M., Schiff, E.' Achiron, R.' Lipitz, S.' Mashiach, S. Managing residual trophoblastic tissue. Hysteroscopy for directing curettage. J Reprod Med. 1997;42(1)26-8.
7. Yu D, Wong YM, Cheong Y, Xia E, Li TC. Asherman syndrome-one century later. Fertil Steril 2008;89(4):759-779.
8. Wolman I, Gordon D, Yaron Y, Kupferminc M, Lessing JB, Jaffa AJ. Transvaginal sonohysterography for the evaluation and treatment of retained products of conception. Gynecol Obstet Invest 2000;50:73-6.
9. Alcazar JL. Transvaginal ultrasonography combined with color velocity imaging an dpulsed Doppler to detect residual trophoblastic tissue. Ultrasound Obstet Gynecol 1998; 11:54-8.
10. Achiron R, Goldenberg M, Lipitz S, Mashiach S. Transvaginal duplex Doppler ultrasonography in bleeding patients suspected of having residual trophoblastic tissue. Obstet Gynecol1993;81:507-11.
11. Chung, TK, Cheung, LP, Leung, TY, Haines, CJ, and Chang, AM. Misoprostol in
the management of spontaneous abortion. Br J Obstet Gynaecol 1995;102(10):832-
5.
12. Macrow, P and Elstein, M. Managing miscarriage medically. BMJ 1993;306(6882):876.
13. Demetroulis, C, Saridogan, E, Kunde, D, and Naftalin, AA. A prospective randomized control trial comparing medical and surgical treatment for early pregnancy failure. Hum Reprod 2001;16(2):365-9.
14. McKee M, Priest P, Ginzlet M et al. Can out-of-hours operating in gynecology be reduced? Arch Emerg Med 1992;9:290-8.
15. Moodliar S, Bagratee JS, Moodley J. Medical vs surgical evacuation of first-trimester spontaneous abortion. Int J Gynecol Obstet 2005;91:21-6.
16. Muffley, PE, Stitely, ML, and Gherman, RB. Early intrauterine pregnancy failure: a randomized trial of medical versus surgical treatment. Am J Obstet Gynecol 2002;187(2):321-5; discussion 325-6.
17. Ballagh SA, Harris HA, Demasio K.Is curettage needed for uncomplicated incomplete spontaneous abortion? Am J Obstet Gynecol 1998;179:1279-82.
18. Stovall, TG, Ling, FW, and Buster, JE. Outpatient chemotherapy of unruptured ectopic pregnancy. Fertil Steril 1989;51(3):435-8.
19. Lipscomb, GH, Bran, D, McCord, ML, Portera, JC, and Ling, FW. Analysis of three hundred fifteen ectopic pregnancies treated with single-dose methotrexate. Am J Obstet Gynecol 1998;178(6):1354-8.
20. Zhang, J, Gilles, JM, Barnhart, K, Creinin, MD, Westhoff, C, and Frederick, MM. A comparison of medical management with misoprostol and surgical management for early pregnancy failure. N Engl J Med 2005;353(8):761-9.
21. Hertig AT, Livingstone RG. Spontaneous, threatened and habitual abortion: their pathogenesis and treatment. N Engl J Med 1944;230:797-806.
22. Stockheim D, Machtinger R, Wiser A, Dulitzky M, Soriano D, Goldenberg M, Schiff E, Seidman D. A randomized prospective study of misoprostol or mifepristone followed by misoprostol when needed for the treatment of women with early pregnancy failure. Fertil Steril 86(4):956-60.
23. World Health Organization Task Force on post-ovulatory methods of fertility regulation. Comparison of two doses of two doses of mifepristone in combination with misoprostol for early medical abortion: a randomized trial. BJOG 2000;107:524-30.
24. Hausknecht RU. Methotrexate and misoprostol to terminate early pregnancy. N Engl J Med 1995;333:537-40.
25. Peyron R, Auberny E, Targosz V, Silvestre L, Renault M, Elkik F et al. Early termination of pregnancy with mifepristone (RU 486) and the orally active prostaglandin misoprostol. N Engl J Med 1993;328:1509-13.
26. Spitz IM, Bardin CW, Benton L, Robbins A. Early pregnancy termination with mifepristone and misprostol in the United States. N Engl J Med 1998;338:1241-7.
27. Creinin MD, Huang X, Westhoff C, Barnhart K, Gilles JM, Zhang JZ. Factors related to successful misoprostol treatment for early pregnancy failure. Obstet Gynecol 2006; 107(4):901-907.
28. Pang MW, Lee TS, Chung TKH. Incomplete miscarriage: a randomized controlled trial comparing oral with vaginal misoprostol for medical evacuation. Hum Rep 2001;16(11):2283-7.
29. Chung TKH, Cheung LP, Sahota DS et al. Spontaneous abortion: short term complications following either conservative or surgical management. Aust NZ J Obstet Gynaecol 2001; 38:61-4.
30. Blanchard K, Taneepanichskul S, Kiriwat O, Sirimai K, Svirirojana N, Mavimbela N, Winikoff B. Two regimens of misoprostol for treatment of incomplete abortion. Obstetrics & Gynecology 2004;103(5 Pt1): 860-5.
31. Shaw, D. Misoprostol for reproductive health: Dosage recommendations. International Journal of Gynecology and Obstetrics 2007; 99:S155.
32. ACOG Committee on International Affairs. Committee Opinion: Misoprostol for postabortion care. Obstetrics & Gynecology 2009; 113(2) Part I:465-8.
(my additions are in blue)
1. Toaf and Ballas, 1978 (1):
"Peurperal curettage…was discontinued in Israel after publication of Asherman’s observations.”
This is not so in the US, UK, Australia and many other countries. Also, curettage remains standard care for treating miscarriage in many countries (while abortion is now usually carried out medically).
2. Li et al, 2001 (2):
After vaginal delivery, a retained placenta may cause a risk to maternal health because of hemorrhage or infection. …manual removal of the retained placenta is a routine procedure. ..This invasive procedure increases risk of trauma*, rupture of uterus, hemorrhage, postpartum infection, and anesthetic complications.”
* Asherman’s syndrome may result
“In all 18 parturients, spontaneous expulsion of the placenta developed in an average interval of 12 min (range from 5 to 35 min) after rectal insertion of misoprostol.”
3. Friedler et al, 1993 (3):
“The incidence of IUA might be lower following medical evacuation of the uterus, thus avoiding any intra-uterine instrumentation; however, use of progesterone antagonists (ie, mifepristone) for this purpose is not yet approved by the Israeli Ministry of Health.”
4. Chapman and Chapman, 1990 (4):
“One must also note that the suction curette is capable of causing synechiae, usually, however in the region of the internal os.”
“It is noteworthy that, of the 11 patients with isthmus stenosis, six of them were attributable to termination of pregnancy, of which all but one had been performed by suction curettage”
“It goes without saying that, in view of the seriousness of the sequelae, the best management is prevention…”
3. Tam et al, 2002 (5):
“No cases of IUA were found in patients managed conservatively or by medical evacuation, whereas 2 cases (7.7%) of filmy IUA were detected in those managed by surgical evacuation.”
“We therefore recommend expectant management and medical evacuation as first-line treatment for complete abortion* and incomplete abortion*, respectively. Surgical evacuation should be the treatment of choice when {these methods} fails or is contraindicated.”
*ie miscarriage
6. Goldenberg et al, 1997 (6):
“Selective curettage of residual trophoblastic tissue directed by hysteroscopy is an easy and short procedure and might be preferable to conventional, nonselective, blind curettage.”
“…areas not covered by residual tissue…are not subject to surgical trauma during the selective procedure and presumably are therefore exposed to lower risks of inflammation, scarring and adhesion formation”
“Incomplete removal of the residua is more likely to occur during repeated conventional curettage, even if guided by ultrasonography, as had occurred in two of our patients. Direct visualization of the cavity allows…the exact location and extent of the residual tissue to be resected.”
7. Yu et al, 2008 (7):
“Prevention of Asherman Syndrome
Prevention is always better than cure. To prevent the formation of endometrial fibrosis and adhesions, it is essential that any trauma to the uterus be avoided, especially in the pregnant or postpartum state.”
They go on to recommend:
“Avoid postpartum or postabortion curettage”
“Diagnosis of retained products of conception …present a clinical challenge.
…Saline infusion sonohysterography (SHG) has enhanced our ability to diagnose retained products of conception (8)”
“…transvaginal B-mode ultrasonography combined with color velocity imaging and pulsed Doppler to detect retained trophoblastic tissue…could be useful to…select patients suitable for conservative management.(9)”
“Transvaginal duplex Doppler ultrasonography is also an effective noninvasive method for evaluating patients with persistent postpartum hermorrhage (10).”
"…hysteroscopy should be considered an effective method for diagnosis and treatment of retained products of conception." They cite the Goldenberg et al (6) study (see above).
…
“Select medical management of miscarriages
When termination of early pregnancy is necessary, medical treatment should be considered instead of surgical options.”
They cite the Tam et al study (5)(see above).
“Since its introduction, the uptake of medical abortion has been steadily increasing in countries where it has been available for routine use….Similarly, in the management of incomplete miscarriage or delayed miscarriage, expectant or medical treatment should be considered.”
7. Chung et al, 1995 (11):
“The accepted management of spontaneous abortion has not changed substantially in 60-70 years.”
“The policy of routine, universal evacuation of retained products of conception (ERPC) became the accepted form of management around the 1930s to combat [these*] complications. However, this approach may no longer be appropriate in all cases.”
*hemorrhage, infection.
“…in the United Kingdom, 90% of spontaneous abortions are managed [by ERPC] (12). Confidence in routine ERPC as the unquestioned ‘gold standard’ may no longer be justified. There may be alternative approaches that are less invasive but equally effective without incurring greater morbidity.”
“Transvaginal sonography can identify approximately one in three women with a spontaneous abortion who do not have a significant amount of retained tissue in the uterus.”
“Surgical intervention in {women who do not have a significant amount of retained tissue in the uterus} may unnecessarily incur iatrogenic complications without therapeutic gain.”
8. Demetroulis et al, 2001 (13):
“Surgical curettage under anaesthesia accounts for almost three-quarters of emergency gynaecological operations performed in the UK (14). However, dilatation and suction evacuation of the uterus under anaesthesia has certain morbidity, such as the risk of anaesthesia, uterine perforation, intrauterine adhesions, cervical trauma, and infections leading to infertility, pelvic pain and increased chance of ectopic pregnancy.”
9. Moodliar et al, 2005 (15):
“Moreover, surgical evacuation of retained products of conception (ERPC) is performed in the operating room, which significantly increases costs. Inherent in the procedure are the possible complications of perforation, hemorrhage, cervical trauma, intrauterine adhesions and postinstrumentation endometritis.”
“As an alternative, medical management has been found to be cost-effective and associated with fewer complications…Yet in South Africa*, incomplete abortion is still being managed by surgical evacuation.”
*in Australia and in many other countries too!
10. Muffley et al, 2002 (16):
“Curettage has been traditionally used as the surgical method of treatment. It has been estimated that approximately 100,000 uterine curettages are performed annually in the United States, at a total yearly cost of >100 million (17). Uterine curettage is associated with …hemorrhage and infection. Uterine adhesions, impaired future fertility, cervical trauma, uterine perforation, and anesthesia errors are also other potential sequelae of curettage.”
“In the late 1980s single-dose methotrexate therapy was introduced for the treatment of unruptured ampullary ectopic gestations (18). Nearly 10 years later, this medical therapy has replaced laparotomy or laparoscopy in many circumstances (19). At this time, however, medical treatment of early pregnancy failure is still in its infancy in the United States. On completion of multicenter randomized clinical trials, we believe that medical treatment will replace surgical therapy as the initial treatment of early pregnancy failure.”
(I hope so!)
Comment by Dr Lisa Fall:
“Firstly, as the trend toward later childrearing continues, we are faced with an increased incidence of pregnancy failure because of advancing gestational [ sic maternal] age. Our patients are interested in noninvasive options for treatment to avoid possible complications that may have an impact on future fertility.”
(Yup, that was me, but I was refused)
11. Zhang et al, 2005 (20):
“For most of the 20th century, dilatation and curettage was the commonly accepted approach to early pregnancy failure. This practice can be traced back to the late 19th and early 20th centuries, when illegally induced abortions commonly resulted in hemorrhage and sepsis (21). With the legalization of abortion and the availability of antibiotics, these problems have become rare. In more recent years, the medical community began to question whether immediate evacuation by surgical intervention was necessary for uncomplicated cases of early pregnancy failure (12,17).”
12. Stockheim et al, 2006 (22):
“Over the past decade, elective medical termination of pregnancy using a protocol that includes mifepristone and misoprostol was accepted into wide practice. This drug regimen was consistently shown to be associated with high success rates of 90-95% (23-26). However, medical treatment of pregnancy failure (blighted ovum or spontaneous abortion) has not yet gained wide acceptance.”
“Misoprostol is an effective and safe treatment for early pregnancy failure and could replace surgical curettage in over two-thirds of the patients.”
13. Creinin et al, 2006 (27):
“As clinicians and researchers, we must ask why women with an undesired normal pregnancy can receive a treatment regimen that is more effective than that tested for women with a desired abnormal pregnancy. The information presented in this analysis will allow us to better tailor misoprostol treatment for early pregnancy failure.”
I would also add, why women with an undesired normal pregnancy only have access to the mifepristone/misoprostol regimen which preserves fertility while those who miscarry do not.
14. Pang et al, 2001 (28):
“Misoprostol is justified as a first line treatment in the management of miscarriage in all cases because firstly it will avoid surgical intervention altogether in a proportion and secondly, in those who need it, misoprostol reduces surgery-related morbidity, mainly by priming the cervix (29.)”
15. Blanchard et al, 2004 (30):
“A growing body of research evidence indicates that medical treatment of incomplete abortion with misoprostol is an effective alternative to surgical intervention. Misoprostol could be an important alternative to dilatation and curettage or manual vacuum aspiration for treatment of incomplete abortion, allowing women to avoid surgical intervention and the attendant risks. Misoprostol is inexpensive and widely available and may also be more acceptable to women than the current standard of care.”
16. Shaw D, The International Federation of Gynecology and Obstetrics (FIGO) President (31):
“Furthermore, women have the right to benefit from advances in scientific knowledge and since women brought unapproved, reproductive health use of misoprostol to the attention of health professionals, it is especially fitting that they now benefit from the research into such use.”
17. The American College of Obstetricians and Gynecologists (ACOG) Committee Opinion, 2009 (32):
“In addition, there is increasing evidence that misoprostol is a safe, effective,and acceptable method to achieve uterine evacuation for women needing postabortion* care.”
“Misoprostol may be used to treat women with an incomplete and missed abortion.”
* Postabortion care: “… refers to a specific set of services for women experiencing problems from all types of spontaneous or induced abortions.”
REFERENCES
1. Toaff R, Ballas S (1978). Traumatic hypomenorrhea-amenorrhea (Asherman's syndrome). Fertil. Steril. 30 (4): 379–87.
2. Li YT, Yin CS, Chen FM. Rectal administration of misoprostol for the management of retained placenta- a preliminary report. Chinese Medical Journal (Taipei) 2001;64:721-4.
3. Friedler S, Margalioth EJ, Kafka I, Yaffe H. (1993). Incidence of postabortion intra-uterine adhesions evaluated by hysteroscopy: a prospective study. Hum Reprod 8 (3): 442–444.
4. K Chapman and R Chapman. Asherman's syndrome: a review of the literature, and a husband and wife's 20-year world-wide experience. J R Soc Med. 1990 September; 83(9): 576–580.
5. Tam WH, Lau WC, Cheung LP, Yuen PM, Chung TK. (2002). Intrauterine adhesions after conservative and surgical management of spontaneous abortion. J Am Assoc Gynecol Laparosc. 9 (2): 182–185.
6. Goldenberg, M., Schiff, E.' Achiron, R.' Lipitz, S.' Mashiach, S. Managing residual trophoblastic tissue. Hysteroscopy for directing curettage. J Reprod Med. 1997;42(1)26-8.
7. Yu D, Wong YM, Cheong Y, Xia E, Li TC. Asherman syndrome-one century later. Fertil Steril 2008;89(4):759-779.
8. Wolman I, Gordon D, Yaron Y, Kupferminc M, Lessing JB, Jaffa AJ. Transvaginal sonohysterography for the evaluation and treatment of retained products of conception. Gynecol Obstet Invest 2000;50:73-6.
9. Alcazar JL. Transvaginal ultrasonography combined with color velocity imaging an dpulsed Doppler to detect residual trophoblastic tissue. Ultrasound Obstet Gynecol 1998; 11:54-8.
10. Achiron R, Goldenberg M, Lipitz S, Mashiach S. Transvaginal duplex Doppler ultrasonography in bleeding patients suspected of having residual trophoblastic tissue. Obstet Gynecol1993;81:507-11.
11. Chung, TK, Cheung, LP, Leung, TY, Haines, CJ, and Chang, AM. Misoprostol in
the management of spontaneous abortion. Br J Obstet Gynaecol 1995;102(10):832-
5.
12. Macrow, P and Elstein, M. Managing miscarriage medically. BMJ 1993;306(6882):876.
13. Demetroulis, C, Saridogan, E, Kunde, D, and Naftalin, AA. A prospective randomized control trial comparing medical and surgical treatment for early pregnancy failure. Hum Reprod 2001;16(2):365-9.
14. McKee M, Priest P, Ginzlet M et al. Can out-of-hours operating in gynecology be reduced? Arch Emerg Med 1992;9:290-8.
15. Moodliar S, Bagratee JS, Moodley J. Medical vs surgical evacuation of first-trimester spontaneous abortion. Int J Gynecol Obstet 2005;91:21-6.
16. Muffley, PE, Stitely, ML, and Gherman, RB. Early intrauterine pregnancy failure: a randomized trial of medical versus surgical treatment. Am J Obstet Gynecol 2002;187(2):321-5; discussion 325-6.
17. Ballagh SA, Harris HA, Demasio K.Is curettage needed for uncomplicated incomplete spontaneous abortion? Am J Obstet Gynecol 1998;179:1279-82.
18. Stovall, TG, Ling, FW, and Buster, JE. Outpatient chemotherapy of unruptured ectopic pregnancy. Fertil Steril 1989;51(3):435-8.
19. Lipscomb, GH, Bran, D, McCord, ML, Portera, JC, and Ling, FW. Analysis of three hundred fifteen ectopic pregnancies treated with single-dose methotrexate. Am J Obstet Gynecol 1998;178(6):1354-8.
20. Zhang, J, Gilles, JM, Barnhart, K, Creinin, MD, Westhoff, C, and Frederick, MM. A comparison of medical management with misoprostol and surgical management for early pregnancy failure. N Engl J Med 2005;353(8):761-9.
21. Hertig AT, Livingstone RG. Spontaneous, threatened and habitual abortion: their pathogenesis and treatment. N Engl J Med 1944;230:797-806.
22. Stockheim D, Machtinger R, Wiser A, Dulitzky M, Soriano D, Goldenberg M, Schiff E, Seidman D. A randomized prospective study of misoprostol or mifepristone followed by misoprostol when needed for the treatment of women with early pregnancy failure. Fertil Steril 86(4):956-60.
23. World Health Organization Task Force on post-ovulatory methods of fertility regulation. Comparison of two doses of two doses of mifepristone in combination with misoprostol for early medical abortion: a randomized trial. BJOG 2000;107:524-30.
24. Hausknecht RU. Methotrexate and misoprostol to terminate early pregnancy. N Engl J Med 1995;333:537-40.
25. Peyron R, Auberny E, Targosz V, Silvestre L, Renault M, Elkik F et al. Early termination of pregnancy with mifepristone (RU 486) and the orally active prostaglandin misoprostol. N Engl J Med 1993;328:1509-13.
26. Spitz IM, Bardin CW, Benton L, Robbins A. Early pregnancy termination with mifepristone and misprostol in the United States. N Engl J Med 1998;338:1241-7.
27. Creinin MD, Huang X, Westhoff C, Barnhart K, Gilles JM, Zhang JZ. Factors related to successful misoprostol treatment for early pregnancy failure. Obstet Gynecol 2006; 107(4):901-907.
28. Pang MW, Lee TS, Chung TKH. Incomplete miscarriage: a randomized controlled trial comparing oral with vaginal misoprostol for medical evacuation. Hum Rep 2001;16(11):2283-7.
29. Chung TKH, Cheung LP, Sahota DS et al. Spontaneous abortion: short term complications following either conservative or surgical management. Aust NZ J Obstet Gynaecol 2001; 38:61-4.
30. Blanchard K, Taneepanichskul S, Kiriwat O, Sirimai K, Svirirojana N, Mavimbela N, Winikoff B. Two regimens of misoprostol for treatment of incomplete abortion. Obstetrics & Gynecology 2004;103(5 Pt1): 860-5.
31. Shaw, D. Misoprostol for reproductive health: Dosage recommendations. International Journal of Gynecology and Obstetrics 2007; 99:S155.
32. ACOG Committee on International Affairs. Committee Opinion: Misoprostol for postabortion care. Obstetrics & Gynecology 2009; 113(2) Part I:465-8.
Friday, July 3, 2009
Introduction: why blog about Asherman's syndrome?
This blog is dedicated to documenting and commenting on information and misinformation relating to Asherman's syndrome and its main cause, surgical evacuation of the uterus. I will also document information and misinformation about promising alternatives to surgical evacuation, particularly misoprostol which is a safe and effective non-invasive drug. Hysteroscopy is another alternative to D&C for retained products of conception from an incomplete miscarriage or retained postpartum placenta, as it allows the surgeon a direct view inside the uterus during surgery. Both are underutilized by doctors who treat early pregnancy failure.
The misnomer of Asherman's syndrome actually refers to a frequently iatrogenic (caused by medical treatment) condition known as intra uterine adhesions or IUA (ie adhesions inside the uterus) caused by injury to the endometrium (lining of the uterus). This injury produces scars on the delicate endometrial tissue which lead to adhesions and/or fibrosis of the endometrium leading to impaired fertility and future obstetric complications if pregnancy occurs. Although estimations are difficult due to a lack of awareness about the condition by doctors and patients alike, it is thought to affect approximately 5% of women. Over 90% of cases are caused by surgical evacuation of the uterus- this includes procedures and terms such as dilation and curettage (D&C), dilation and evacuation (D&E), suction curettage/evacuation, MVA (manual vacuum aspiration), or simply curettage. For the sake of simplicity I will refer to all types of surgical evacuations of the uterus collectively as "D&C". Asherman's syndrome can be caused by any uterine surgery and rarely by endometrial tuberuculosis infection, however my focus is on D&C because this is still considered 'standard care' for miscarriage management in the US, Australia and many other countries.
All or some of these procedures continue to be used for a host of gynecological conditions and pregnancy complications including:
-miscarriage
-postpartum retained placenta
-abortion
-endometrial biopsy
-heavy/abnormal uterine bleeding
-endometrial polyps
-investigation of gynecological cancers
-Asherman's syndrome (absolutely NOT the correct treatment!!!)
There are safer and often cheaper alternatives to D&C for all of the above.
Surgical treatment for Asherman's syndrome exists (hysteroscopic adhesiolysis and estrogen therapy), however overall birthrates remain disappointing for moderate to severe cases (around 30-40%). There is also very little research on optimizing and comparing treatments. Meanwhile there are many randomized controlled trials (RCTs) on using misoprostol for miscarriage management. Prevention is therefore the more logical approach.
I hope to make women aware of the dangers of this procedure and the existence of alternatives. There is a lot of misinformation about the condition due to both a lack of awareness and medically unfounded over-optimism about treatment outcomes.
Over the years women have become aware of the abuse and misuse of hysterectomies and alternatives thanks to activism. This blog aims to make people aware of a similar situation occurring with D&C. It is my hope that one day drugs will replace D&C worldwide for miscarriage management, or at least be offered as a first line of treatment.
The misnomer of Asherman's syndrome actually refers to a frequently iatrogenic (caused by medical treatment) condition known as intra uterine adhesions or IUA (ie adhesions inside the uterus) caused by injury to the endometrium (lining of the uterus). This injury produces scars on the delicate endometrial tissue which lead to adhesions and/or fibrosis of the endometrium leading to impaired fertility and future obstetric complications if pregnancy occurs. Although estimations are difficult due to a lack of awareness about the condition by doctors and patients alike, it is thought to affect approximately 5% of women. Over 90% of cases are caused by surgical evacuation of the uterus- this includes procedures and terms such as dilation and curettage (D&C), dilation and evacuation (D&E), suction curettage/evacuation, MVA (manual vacuum aspiration), or simply curettage. For the sake of simplicity I will refer to all types of surgical evacuations of the uterus collectively as "D&C". Asherman's syndrome can be caused by any uterine surgery and rarely by endometrial tuberuculosis infection, however my focus is on D&C because this is still considered 'standard care' for miscarriage management in the US, Australia and many other countries.
All or some of these procedures continue to be used for a host of gynecological conditions and pregnancy complications including:
-miscarriage
-postpartum retained placenta
-abortion
-endometrial biopsy
-heavy/abnormal uterine bleeding
-endometrial polyps
-investigation of gynecological cancers
-Asherman's syndrome (absolutely NOT the correct treatment!!!)
There are safer and often cheaper alternatives to D&C for all of the above.
Surgical treatment for Asherman's syndrome exists (hysteroscopic adhesiolysis and estrogen therapy), however overall birthrates remain disappointing for moderate to severe cases (around 30-40%). There is also very little research on optimizing and comparing treatments. Meanwhile there are many randomized controlled trials (RCTs) on using misoprostol for miscarriage management. Prevention is therefore the more logical approach.
I hope to make women aware of the dangers of this procedure and the existence of alternatives. There is a lot of misinformation about the condition due to both a lack of awareness and medically unfounded over-optimism about treatment outcomes.
Over the years women have become aware of the abuse and misuse of hysterectomies and alternatives thanks to activism. This blog aims to make people aware of a similar situation occurring with D&C. It is my hope that one day drugs will replace D&C worldwide for miscarriage management, or at least be offered as a first line of treatment.
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