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WITHDRAWN: Amniotomy for shortening spontaneous labour.
The Cochrane Database of Systematic Reviews
|July 20, 2007
Summary
Routine early amniotomy shortens labor duration and may reduce abnormal 5-minute Apgar scores. However, it does not decrease Cesarean delivery rates and may increase them, suggesting it should be reserved for abnormal labor progress.
Area of Science:
- Obstetrics and Gynecology
- Perinatal Medicine
- Clinical Trials
Background:
- Early amniotomy is a debated intervention in the active management of labor.
- Previous trials on routine amniotomy have been limited by small sample sizes.
- The impact of amniotomy on maternal and neonatal morbidity requires further investigation.
Purpose of the Study:
- To evaluate the effects of amniotomy on Cesarean delivery rates.
- To assess the impact of amniotomy on neonatal outcomes, including Apgar scores and NICU admissions.
- To analyze the association between amniotomy and the use of oxytocin during labor.
Main Methods:
- A systematic review and meta-analysis of randomized controlled trials.
- Searched the Cochrane Pregnancy and Childbirth Group clinical trials register.
- Calculated odds ratios using Peto's method for data analysis.
Main Results:
- Amniotomy reduced labor duration by 60-120 minutes.
- A trend towards increased Cesarean delivery risk was observed (OR=1.26).
- Reduced likelihood of low 5-minute Apgar scores (OR=0.54) and decreased oxytocin use (OR=0.79).
Conclusions:
- Routine early amniotomy offers benefits like shorter labor and potentially improved Apgar scores.
- Evidence does not support routine early amniotomy for reducing Cesarean delivery rates; a trend towards increase exists.
- Amniotomy may be best reserved for cases of abnormal labor progress, considering potential risks.

