Ectopic pregnancy

An autopsy report on a ruptured rudimentary horn (uterine anomaly) with ectopic pregnancy

The rudimentary horn is a rare developmental anomaly of the Müllerian duct. Ectopic pregnancy in the rudimentary horn is estimated to occur in one out of 76,000-150,000 pregnancies. A 30-year-old primigravida suddenly collapsed after 3 days of continuous abdominal pain. Emergency laparotomy revealed a massive intraperitoneal hemorrhage and fetal demise. The growth of the fetus after 19 weeks of gestation is believed to have caused the rudimentary horn rupture, thereby rapidly leading to hemorrhagic shock in the mother and ischemic death in the fetus. This is the first autopsy report on maternal death due to the rudimentary horn or other Müllerian duct anomalies, which emphasizes the need for forensic pathologists to consider this condition as a possible cause of unexpected death in fertile women. In addition, it is very important for clinicians to detect Müllerian duct anomalies by sonography during routine obstetric examinations, and promptly diagnose anomaly related ectopic pregnancies in women displaying symptoms of an acute abdomen, intraperitoneal hemorrhage, or shock in the emergency practice.

Risk factors for ectopic pregnancy in women with symptomatic first-trimester pregnancies

OBJECTIVE

To evaluate the association between ectopic pregnancy (EP) and clinical and historical factors among women presenting with pain and/or bleeding in early pregnancy.

DESIGN

Nested case-control study.

SETTING

University medical center.

PATIENT(S)

Women with symptomatic early pregnancies of unknown location presenting for care between January 1, 1990 and July 31, 1999.

INTERVENTION(S)

None.

MAIN OUTCOME MEASURE(S)

Clinical and historical risk factors were compared between women with EP and women with ongoing intrauterine pregnancies or spontaneous abortions.

RESULT(S)

The following factors were associated with increased risk of EP: prior EP (odds ratio, 2.98 [95% confidence interval, 1.88-4.73] for one prior EP and 16.04 [5.39-47.72] for 2 or more), pelvic inflammatory disease history (1.5 [1.11-2.05]), pain at presentation (1.42 [1.06-1.92]), vaginal bleeding at presentation (1.42 [1.04-1.93]), and hCG of 501-2,000 mIU/mL (1.73 [1.24-2.42]). Age younger than 25 years (0.59 [0.41-0.85]) and a history of abortion were protective from EP (0.58 [0.38-0.90]). Prior nontubal pelvic surgery, past intrauterine device use, prior cesarean section, and current cervical infection demonstrated no association with EP.

CONCLUSION(S)

Evaluation of women with a symptomatic early pregnancy confirms and refutes some of the classical risk factors for EP. Prior EP is a strong risk factor, whereas pelvic inflammatory disease has an unexpected weak association. Previous abortion was found to have a negative association, whereas nontubal surgery, cesarean section, and a history of or concomitant cervical infection have no association. Knowledge of historical and clinical factors associated with EP may aid in early diagnosis.

Ectopic pregnancy: a review

Ectopic pregnancy is a major clinical problem, occurring in 75,000 cases per year in the United States. With in vitro fertilization, embryo transfer, microsurgical techniques, and better early diagnosis, the rates of ectopic pregnancies have increased. Transvaginal sonography along with beta-human chorionic gonadotrophin monitoring are the standards for evaluation of suspected ectopic pregnancy. When ectopic pregnancy is present, transvaginal sonography most often demonstrates an adnexal finding directly related to the extra-uterine gestation itself, a hematoma caused by it, or both. Although tubal location is most common, it is important to recognize unusual locations of ectopic pregnancy such as isthmic, cervical, ovarian, and abdominal. Ultrasound is the mainstay of diagnosis, but magnetic resonance imaging can be helpful in unusual or complicated cases. Current therapeutic options for an ectopic pregnancy are expectant management, systemic methotrexate injections, sonographically guided minimal invasive treatment, and surgery. This review encompasses diagnosis, treatment, and management of ectopic pregnancy.

Time and the Risk of Ruptured Tubal Pregnancy

OBJECTIVE

Tubal pregnancy remains an important cause of maternal morbidity and mortality. We sought to quantify the relationship of time between symptom onset and treatment and the risk of tubal rupture.

METHODS

We reviewed inpatient, clinic, and physician office charts of 221 women with tubal pregnancy. We assessed the conditional risk of rupture with passing time and other factors related to rupture.

RESULTS

Time between symptom onset and treatment varied from 3 hours to 66 days with an average of 7 days. There was a 32% rupture rate. The conditional risk of rupture was highest within the first 48 hours of symptom onset (5-7%). The risk dropped, leveled off, and remained fairly steady at approximately 2.5% per 24 hours of untreated symptoms. Classic tubal pregnancy signs, symptoms, and tests were not helpful in predicting rupture.

CONCLUSION

The rate of rupture is highest in women with the shortest times between symptom onset and treatment. With passing time, the risk declines, but remains steady despite women's getting into care.

LEVEL OF EVIDENCE

II-2

Meta-analysis of diagnostic test accuracy assessment studies with varying number of thresholds

Current meta-analytic methods for diagnostic test accuracy are generally applicable to a selection of studies reporting only estimates of sensitivity and specificity, or at most, to studies whose results are reported using an equal number of ordered categories. In this article, we propose a new meta-analytic method to evaluate test accuracy and arrive at a summary receiver operating characteristic (ROC) curve for a collection of studies evaluating diagnostic tests, even when test results are reported in an unequal number of nonnested ordered categories. We discuss both non-Bayesian and Bayesian formulations of the approach. In the Bayesian setting, we propose several ways to construct summary ROC curves and their credible bands. We illustrate our approach with data from a recently published meta-analysis evaluating a single serum progesterone test for diagnosing pregnancy failure.

Effectiveness of inpatient and outpatient treatment strategies for women with pelvic inflammatory disease: results from the Pelvic Inflammatory Disease Evaluation and Clinical Health (PEACH) Randomized Trial

OBJECTIVE

Pelvic inflammatory disease (PID) is a common and morbid intraperitoneal infection. Although most women with pelvic inflammatory disease are treated as outpatients, the effectiveness of this strategy remains unproven.

STUDY DESIGN

We enrolled 831 women with clinical signs and symptoms of mild-to-moderate pelvic inflammatory disease into a multicenter randomized clinical trial of inpatient treatment initiated by intravenous cefoxitin and doxycycline versus outpatient treatment that consisted of a single intramuscular injection of cefoxitin and oral doxycycline. Long-term outcomes were pregnancy rate, time to pregnancy, recurrence of pelvic inflammatory disease, chronic pelvic pain, and ectopic pregnancy.

RESULTS

Short-term clinical and microbiologic improvement were similar between women randomized to the inpatient and outpatient groups. After a mean follow-up period of 35 months, pregnancy rates were nearly equal (42.0% for outpatients and 41.7% for inpatients). There were also no statistically significant differences between outpatient and inpatient groups in the outcome of time to pregnancy or in the proportion of women with pelvic inflammatory disease recurrence, chronic pelvic pain, or ectopic pregnancy.

CONCLUSION

Among women with mild-to-moderate pelvic inflammatory disease, there was no difference in reproductive outcomes between women randomized to inpatient treatment and those randomized to outpatient treatment.