Bed rest in singleton pregnancies for preventing preterm birth

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine
• Evidence-Based Medicine

Background:

• Bed rest is a common recommendation for preventing preterm birth, based on the idea it reduces uterine activity.
• However, the potential adverse effects of bed rest on maternal and fetal outcomes are not well understood.

Purpose of the Study:

• To evaluate the effectiveness of prescribed bed rest, whether in-hospital or at home, for preventing preterm birth in high-risk pregnancies.

Main Methods:

• A systematic review and meta-analysis of randomized, cluster-randomized, and quasi-randomized controlled trials.
• Searches included major databases up to December 2014.
• Two reviewers independently assessed study eligibility, quality, and extracted data.

Main Results:

• Only one study with 1266 women met the inclusion criteria for meta-analysis.
• Preterm birth rates before 37 weeks were similar between the bed rest group and the control group (7.9% vs 8.5%).
• No significant differences were found in other maternal or perinatal outcomes.

Conclusions:

• There is currently no evidence to support or refute the use of bed rest for preventing preterm birth.
• Despite widespread use, bed rest lacks proven benefits and may have adverse effects.
• Further research is needed to determine the effectiveness and potential harms of bed rest interventions.