Late sequelae after laparoscopic sterilization in the pregnant and non-pregnant woman

Contraception After Abortion

After a spontaneous or induced abortion, people may desire to delay or prevent a future pregnancy and many desire to use contraceptive methods to do so. Contraception counseling and provision at the time of abortion care are important components to improve contraceptive access and convenience for people undergoing abortion care. The majority of hormonal and barrier contraceptive methods may be safely initiated at the time of medication or procedural abortion or shortly thereafter, although delayed initiation may be necessary in certain circumstances. A patient-centered approach to contraceptive counseling can identify patients' priorities and mitigate provider coercion or pressure.

Plan A: postabortion contraception

More than 1 million abortions are performed annually in the United States. Women presenting for abortion care are often motivated by the pregnancy to use effective contraception; they are also at high risk for repeat unintended pregnancy. For these reasons, abortion represents an optimal time to initiate effective contraception. There is strong evidence that most methods of contraception, including intrauterine devices and the contraceptive implant, should be initiated at the time of the abortion procedure. Most women ovulate within the first month after an abortion. If provision of contraception is delayed, women are less likely to use effective contraception and more likely to have a repeat unintended pregnancy. Although some methods of permanent contraception can be safely performed at the time of abortion, federal and state laws often restrict these procedures being performed concurrently. Contraceptive counseling and provision at the time of abortion are important strategies to decrease rates of unintended pregnancy.

Use of ethylene vinyl alcohol copolymer for tubal sterilization by selective catheterization in rabbits

PURPOSE

To assess the efficacy of ethylene vinyl alcohol copolymer (Uryx) in nonsurgically occluding the fallopian tube and achieving tubal sterilization in the rabbit model.

MATERIALS AND METHODS

Ten mature virgin female New England rabbits underwent transvaginal selective bilateral fallopian tube cannulation with use of a coaxial catheter system under general anesthesia. Selective salpingography was performed bilaterally to assess patency of the fallopian tubes. Ethylene vinyl alcohol copolymer was injected unilaterally through a microcatheter to completely fill the middle portion of the tube. Three to seven days after injection, each animal was bred. Conception was determined by ultrasonography (US) 7-19 days after effective breeding. If pregnant, the rabbit was killed. Otherwise, it was permitted to rebreed until pregnancy was achieved. Histologic specimens of the fallopian tubes were prepared and analyzed.

RESULTS

Patency of the fallopian tubes was demonstrated bilaterally in all animals by the free spillage of contrast material into the peritoneum. The delivery of ethylene vinyl alcohol copolymer into the fallopian tubes was successful in all animals but one, in which most of the plug almost immediately extruded into the uterus. Pregnancy was detected by US in the untreated fallopian tube in the nine rabbits that were receptive to breeding. No pregnancies were detected in the injected side. Histologic analysis demonstrated variable degrees of occlusion, fibrosis, and inflammation, with the majority of specimens demonstrating mild to moderate inflammation and moderate to marked fibrosis.

CONCLUSION

Ethylene vinyl alcohol copolymer can reliably be placed nonsurgically via the transvaginal approach into the fallopian tubes with use of a coaxial catheter system. Ethylene vinyl alcohol copolymer appears to result in less fibrosis than previously investigated agents and demonstrates a 100% early sterilization rate in the rabbit model.

Female sterilization. Evidence

The literature review herein reveals substantial information regarding the safety, efficacy, short-term complications, long-term complications, and noncontraceptive benefits of sterilization. This information should be helpful for providers and potential sterilization candidates. The review also reveals areas where the data are unclear. Points to keep in mind during counseling include the following: The vast majority of women are satisfied with the decision to undergo sterilization. The fact that regret occurs underscores the importance of counseling and adequate individual deliberation before the procedure. In addition to the difficulty and expense associated with sterilization reversal, the woman should thoroughly understand the permanence of the procedure. Although failure is a rare event, it can occur many years after the procedure. Although evidence suggests that hysterectomy rates are higher in sterilized women aged less than 30 to 35 years, it is unlikely that there is a plausible biologic effect of sterilization on hysterectomy risk. An association between tubal sterilization and menstrual cycle changes does not seem valid for changes noted up to 2 years after the procedure. Data are unclear and inconsistent among studies observing women more than 2 years after the procedure. Evidence consistently shows that sterilization is associated with a reduced incidence of ovarian cancer and pelvic inflammatory diseases. Most studies show no effect or improvement of sexual satisfaction after sterilization. Complications during and postprocedure are rare. Sterilization provides no protection against the acquisition of sexually transmitted disease. Patients and their physicians should recognize that sterilized women may need more targeted preventive efforts for health screening and to reduce high-risk behavior than women who use other contraceptive methods. The surgeon's experience and the woman's preferences should govern the ultimate decision regarding the approach and occlusion method. Level II-2 evidence indicates comparable safety between interval laparoscopy and minilaparotomy. Data consistently show that in experienced trained hands, tubal sterilization is safe and highly effective regardless of the approach or occlusive method. Attention to the subtleties of technique seems to be most important in ensuring procedure safety and efficacy. Reanalysis of the CREST data shows that the cumulative failure rate of bipolar coagulation is comparable with the failure rate of unipolar coagulation if a substantial length of tube is adequately coagulated. The data discussed herein can be used to guide management decisions that may increase accessibility and reduce cost of the procedure. Low-resource settings and office settings have maintained an excellent safety record for this procedure through performance of sterilization under local anesthesia. The use of local anesthesia enables a change in procedure location from an inpatient operating room to a free-standing surgical clinic or adequately equipped office. Local anesthesia, with or without preoperative medication, is an excellent option associated with a lower complication risk, reduced cost, and shorter, easier recovery. The surgeon should have specific training in the effective use of local anesthetics, preoperative medications, and management of rare complications in low-resource settings. Little additional research is needed regarding the safety and efficacy of standard sterilization approaches and occlusion methods. There is a need for continued development of nonsurgical methods of sterilization, microlaparoscopic approaches performed in the office setting, and the feasibility and acceptance of service provision by nonspecialist health care providers. The evidence indicates that female sterilization can be performed safely in a variety of resource settings ranging from rural sterilization camps in developing countries to high-tech, resource-rich operating rooms in developed c

Sterilization and its consequences

The purpose of this review is to analyze critically the two techniques of sterilization (bilateral tubal ligation [BTL] and vasectomy) so that a physician may provide informed consent about methods of sterilization. A MEDLINE search and extensive review of published literature dating back to 1966 was undertaken to compare preoperative counseling, operative procedures, postoperative complications, procedure-related costs, psychosocial consequences, and feasibility of reversal between BTL and a vasectomy. Compared with a vasectomy, BTL is 20 times more likely to have major complications, 10 to 37 times more likely to fail, and cost three times as much. Moreover, the procedure-related mortality, although rare, is 12 times higher with sterilization of the woman than of the man. Despite these advantages, 300,000 more BTLs were done in 1987 than vasectomies. In 1987, there were 976,000 sterilizations (65 percent BTLs and 35 percent vasectomies) with an overall cost of $1.8 billion. Over $260 million could have been saved if equal numbers of vasectomies and BTLs had been performed, or more than $800 million if 80 percent had been vasectomies, as was the case in 1971. The safest, most efficacious, and least expensive method of sterilization is vasectomy. For these reasons, physicians should recommend vasectomy when providing counseling on sterilization, despite the popularity of BTL.

TARGET AUDIENCE

Obstetricians & Gynecologists, Family Physicians

LEARNING OBJECTIVES

After completion of this article, the reader will be able to predict the failure rates and likelihood of successful reversal of tubal ligation and vasectomy; to recall the difference in cost between the two sterilization procedures, and to describe the short-term and long-term complications associated with each of the two methods of sterilization.

Sterilization

Sterilization is accepted as a permanent method of contraception by many couples in the world. Female sterilization is more widely used than male sterilization, but the latter is used by many couples in developed countries. The most widely used methods for female sterilization are simple tubal ligation, electrocautery of the fallopian tubes, and occlusion of the tubes by Hulka or Filshie clips or Falope rings. These procedures may be carried out either by minilaparotomy or by laparoscopy, under local anaesthesia. Sterilization may be performed immediately following pregnancy, or as an interval operation. The effectiveness of female sterilization is high, with failure rates of about 1-2 per 1000 procedures. Immediate complications are few and minor, while there appear to be no serious, long-term adverse effects. It is possible that there is a protective effect against ovarian cancer. Potential new technologies for female sterilization include the use of chemicals, such as quinacrine, for transcervical tubal occlusion, and hysteroscopic methods. Male sterilization is more simple and can readily be performed under local anaesthesia. A new technique originating in China, the no-scalpel technique, has made the procedure even more simple and produces fewer complications such as haematoma. It is possible that the direct injection of plug-forming material into the vas may render the procedure more reversible. Concerns about possible adverse effects of vasectomy on cardiovascular diseases and testicular cancer largely have been dispelled, but a possible weak association between vasectomy and prostatic cancer continues to be studied.