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Bed Rest After Preterm Premature Rupture of the Membranes

Preterm Premature Rupture of Membrane Clinical Trial

Official title:
A Pilot Randomized Controlled Trial On Complete Bed Rest Versus Activity Restriction After Preterm Premature Rupture of the Membranes

Clinical Trial Summary

Antepartum bed rest is widely prescribed after preterm premature rupture of the membranes (PPROM), although its effectiveness to prevent preterm birth has not been demonstrated. This pilot randomized controled trial (RCT) aims to access the impact of bed rest in maternal and neonatal outcomes in pregnancies complicated by premature rupture of the membranes.

Clinical Trial Description

Aims - To access the impact of bed rest in latency time to delivery, chorioamnionitis incidence and other maternal and neonatal outcomes in pregnancies complicated by PPROM, thus enabling proper sample size calculation for future powered RCT.

Study population and Sample size - Eligible patients included those with single pregnancies with PPROM at 24+0-33+6 weeks of gestation who were admitted to and delivering at our tertiary center. PPROM was diagnosed on the basis of patient's history and sterile speculum examination with visualization of amniotic fluid pooling in the vagina and/or leaking from the cervical canal. Exclusion criteria included indication for immediate delivery on admission (chorioamnionitis, placenta abruption, cord prolapse, signs of fetal hypoxia/distress), fetal malformations, multiple gestation, and maternal immunosuppressive disease. Considering future sample size calculation based upon assumed differences between groups regarding latency and infection, we aimed a sample of 30 participants.

Randomization - A pilot unblinded randomized controlled trial (RCT) in a 1:1 allocation ratio between two groups (complete bed rest versus activity restriction after PPROM). Simple random allocation sequence was generated by the investigators and implemented by sequentially numbered sealed envelopes. Participants were enrolled by physicians after hospital admission and written informed consent was obtained before randomization. The trial was conducted in a single tertiary center of the Portuguese national health system after approval by its ethical committee.

Statistical analysis - An intention-to-treat analysis was performed with a significance level of 5%. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03814278
Study type Interventional
Source Centro Hospitalar Lisboa Norte
Contact
Status Completed
Phase N/A
Start date January 2012
Completion date January 2018
View Details
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