Sonographic guidance for uterine dilation and curettage complicated by postmenopausal cervical stenosis. A case report.
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This study analyzes the morbidity of therapeutic abortion and identifies predisposing factors. A retrospective case evaluation of 2,105 pregnancy terminations was performed. Major complications occurred in 5% of those undergoing curettage procedures, 41% of women undergoing prostaglandin amnioinfusion, and 17% of those who had hysterotomy as a method of abortion. Age, parity, and history of previous pregnancy termination, had little effect on morbidity. Surgical/technical factors and reliance on amnioinfusion and hysterotomy as procedures of choice for pregnancy termination contributed significantly to the high morbidity rates. This contribution, however, was overshadowed by the influence of patient delay, physician delay, and limited abortion facilities, resulting in 35.4% of pregnancy terminations being performed in the midtrimester. Improvements in abortion technique may lower the incidence of complications, but the need for more appropriate facilities is emphasized.
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Opinion is divided as to the advisability of routine use of prophylactic antibiotics for curettage abortion. Six studies, including three randomized clinical trials, suggest that prophylaxis reduces infectious morbidity associated with curettage abortions by about one half. Three other studies, two involving prophylaxis for instillation abortions and one involving a vaginal antiseptic for curettage abortion, support the hypothesis that antimicrobial prophylaxis reduces morbidity. Tetracyclines are commonly used for this purpose. The cost of routine prophylaxis even with an expensive tetracycline would appear to be offset by the savings in direct and indirect costs. Prophylaxis may help prevent both short-term morbidity and potential late sequelae, such as ectopic pregnancy and infertility.
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Cervical injury is one of the most frequent complications of suction curettage abortion, yet little is known about its risk factors or prevention. In 15 438 suction curettage abortions carried out at less than or equal to 12 weeks' gestation in hospitals in the USA from 1975 to 1978 the incidence of cervical injury requiring suturing was 1.03 per 100 abortions. Among factors potentially within the physician's control, use of laminaria rather than rigid dilators for dilatation had a strong protective effect (relative risk 0.19), whereas performance of the abortion by a resident rather than an attending physician (relative risk 2.0) and use of general rather than local anaesthesia (relative risk 2.6) had detrimental effects on rates of cervical injury. Among other factors, a previous abortion had a protective effect (relative risk 0.46), whereas patient age less than or equal to 17 years had a detrimental effect (relative risk 1.9). Use of laminaria, performance of the abortion by an attending physician, and local anaesthesia together yield a 27-fold protective effect.
Eleven women were referred with postabortal amenorrhoea and cyclical lower abdominal pain due to upper cervical occlusion by a thin band of fibrous adhesions. All had undergone first trimester termination of pregnancy by vacuum curettage. Associated intrauterine adhesions were found in 2 patients. Cervical adhesions were easily breached with a uterine sound and cervical dilators, and were then visualized with a hysteroscope. All women resumed normal menstrual cycles and suffered no sequelae. This unusual, but eminently treatable, complication of vacuum curettage should be more widely appreciated.
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