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Causative factors in first trimester abortion failure
C Gürkan Zorlu1, K Aral, E Ekici
1Department of Obstetrics and Gynaecology, Dr Zekai Tahir Burak Women's Hospital, Ankara, Turkey.
Advances in Contraception : the Official Journal of the Society for the Advancement of Contraception
|March 1, 1996
Summary
Failed first trimester abortions occurred at a 0.18% rate. Key contributors included unsuspected uterine anomalies, malposition, and leiomyomas, necessitating careful evaluation for extrauterine pregnancy and technical factors.
Area of Science:
- Reproductive Medicine
- Gynecologic Surgery
Background:
- First-trimester abortion is a common gynecologic procedure.
- Understanding failure rates and causes is crucial for patient safety and effective care.
Purpose of the Study:
- To identify the primary factors contributing to failed first-trimester abortions.
Main Methods:
- Retrospective analysis of 23,000 first-trimester termination procedures (1989-1995).
- Inclusion of 42 cases with unintentional continued pregnancy.
- Diagnosis based on follow-up or intraoperative findings.
Main Results:
- The overall failure rate was 0.18%.
- Identified causes included unsuspected uterine anomalies (8%), uterine malposition (7%), and leiomyomas (2%).
- In 25 cases without identified disorders, gestational age and termination technique varied.
Conclusions:
- Failed abortions warrant investigation for extrauterine pregnancy.
- Consider technical failures, uterine anomalies, and malposition as potential causes.
- Thorough evaluation is essential when termination is uncertain or tissue obtained is scanty.