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Antibiotic prophylaxis in ragged placental membranes: a prospective, multicentre, randomized trial.

Abstract：

BACKGROUND:Ragged placental membranes is a distinct entity from retained placenta and not uncommonly reported in midwifery texts. Although the incidence of postpartum endometritis is merely 1-5% after vaginal births, it remains the most common source of puerperal sepsis, contributing up to 15% of maternal mortality in low income countries. Geographically-remote centres in Malaysia prophylactically administer antibiotics for women with ragged placental membranes after vaginal birth, extrapolating evidence from retained placenta. We sought to clarify the rationale in continuing such practices. METHODS:This was an open-label, prospective, multicentre, randomized trial. Three hospitals where the current protocol was to administer prophylactic amoxycillin-clavulanic acid served as the sites of recruitment. Women who delivered vaginally beyond 24+ 0 weeks of gestation with ragged membranes were invited to participate in the trial and randomized into prophylaxis or expectant management with medical advice by blocks of 10, at a 1:1 ratio. A medication adherence diary was provided and patients followed up at 2 weeks and 6 weeks postpartum. RESULTS:A total of 6569 women gave birth vaginally in three centres during the trial period, of which 10.9% had ragged membranes. The incidence of endometritis was not significantly raised in women with or without prophylaxis (0.90% vs 0.29%; p = 0.60). All cases of endometritis presented within the first 2 weeks and preventive use of antibiotics did not ameliorate the severity of endometritis since rates of ICU admission, surgical evacuation and transfusion were comparable. CONCLUSION:Preventive use of antibiotics after vaginal delivery in women with ragged placental membranes did not result in a reduction of endometritis. Educating women on the signs and symptoms of endometritis would suffice. Based on the reported incidence of ragged membranes, a change in practice would result in 1500 less prescriptions of antibiotics per annum in these three centres. TRIAL REGISTRATION:NCT03459599 (Retrospectively registered on 9 March 2018).

journal_name

BMC Pregnancy Childbirth

journal_title

BMC pregnancy and childbirth

authors

Voon HY,Pow JY,Tan LN,Suharjono HN,Teo WS

doi

10.1186/s12884-019-2373-9

subject

Has Abstract

pub_date

2019-07-11 00:00:00

pages

240

issue

issn

1471-2393

pii

10.1186/s12884-019-2373-9

journal_volume

pub_type

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Antibiotic prophylaxis in ragged placental membranes: a prospective, multicentre, randomized trial.