Prognosis of preterm premature rupture of membranes between 20 and 24 weeks of gestation: A retrospective cohort study

Background: The previous study on prognosis of preterm premature rupture of fetal membranes (pPROM) near the limit of viability showed various survival rate raging from 26 to 57 %%. This may be partly due to the fact that treatment of prematurely born babies vary from one country to another, or some...

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Main Authors: Sumire Sorano, Mayumi Fukuoka, Kaori Kawakami, Yoshihito Momohara
Format: Article
Language:English
Published: Elsevier 2020-01-01
Series:European Journal of Obstetrics & Gynecology and Reproductive Biology: X
Online Access:http://www.sciencedirect.com/science/article/pii/S2590161319301358
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author Sumire Sorano
Mayumi Fukuoka
Kaori Kawakami
Yoshihito Momohara
author_facet Sumire Sorano
Mayumi Fukuoka
Kaori Kawakami
Yoshihito Momohara
author_sort Sumire Sorano
collection DOAJ
description Background: The previous study on prognosis of preterm premature rupture of fetal membranes (pPROM) near the limit of viability showed various survival rate raging from 26 to 57 %%. This may be partly due to the fact that treatment of prematurely born babies vary from one country to another, or sometimes within a single country. In Japan, resuscitation efforts are made to newborns of early gestational age, normally from 22 weeks of gestation. Objective: To assess the natural history and short- and long-term prognosis in pregnancies complicated by preterm premature rupture of membranes (pPROM) near the limit of viability in a hospital in Japan. Method: We conducted a single-center retrospective cohort study. Cases with diagnosis of pPROM at a gestational age of 20–23 6/7 weeks and delivered in our hospital between April 2007 and December 2017 were examined. Result: 66 cases were included and of those, 54 (81.1 %) newborns survived to discharge. Of the neonates who survived to discharge, 42 (77.8 % of survivors) experienced severe morbidity at the time of discharge. Multivariate logistic regression analysis showed that later gestational age at pPROM and longer latency period were significantly associated with survival with no severe morbidities (per one day increase, adjusted odds ratio (OR) 1.37, 95 % CI 1.03–1.83, p = 0.033 and per one day increase, adjusted OR 1.11, 95 % CI 1.02–1.21, p = 0.015). Of 23 cases followed at 36 months, 8 (34.8 %) showed developmental delay. Conclusion: The survival rate was significantly higher than the previous studies, yet many of the survivors experienced short-term severe morbidity. Of those who experienced short-term severe morbidity, however, more than half showed normal range development at 36 months. Keywords: Preterm premature rupture of membrane, Near the limit of viability
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spelling doaj.art-1986bec5c06842608e590664b3447c2d2022-12-22T01:09:04ZengElsevierEuropean Journal of Obstetrics & Gynecology and Reproductive Biology: X2590-16132020-01-015Prognosis of preterm premature rupture of membranes between 20 and 24 weeks of gestation: A retrospective cohort studySumire Sorano0Mayumi Fukuoka1Kaori Kawakami2Yoshihito Momohara3Corresponding author at: Department of Obstetrics and Gynecology, Tokyo Metropolitan Ohtsuka Hospital, 2-8-1 Minamiotsuka, Toshima, Tokyo 170-0005, Japan.; Department of Obstetrics and Gynecology, Tokyo Metropolitan Ohtsuka Hospital, Tokyo, JapanDepartment of Obstetrics and Gynecology, Tokyo Metropolitan Ohtsuka Hospital, Tokyo, JapanDepartment of Obstetrics and Gynecology, Tokyo Metropolitan Ohtsuka Hospital, Tokyo, JapanDepartment of Obstetrics and Gynecology, Tokyo Metropolitan Ohtsuka Hospital, Tokyo, JapanBackground: The previous study on prognosis of preterm premature rupture of fetal membranes (pPROM) near the limit of viability showed various survival rate raging from 26 to 57 %%. This may be partly due to the fact that treatment of prematurely born babies vary from one country to another, or sometimes within a single country. In Japan, resuscitation efforts are made to newborns of early gestational age, normally from 22 weeks of gestation. Objective: To assess the natural history and short- and long-term prognosis in pregnancies complicated by preterm premature rupture of membranes (pPROM) near the limit of viability in a hospital in Japan. Method: We conducted a single-center retrospective cohort study. Cases with diagnosis of pPROM at a gestational age of 20–23 6/7 weeks and delivered in our hospital between April 2007 and December 2017 were examined. Result: 66 cases were included and of those, 54 (81.1 %) newborns survived to discharge. Of the neonates who survived to discharge, 42 (77.8 % of survivors) experienced severe morbidity at the time of discharge. Multivariate logistic regression analysis showed that later gestational age at pPROM and longer latency period were significantly associated with survival with no severe morbidities (per one day increase, adjusted odds ratio (OR) 1.37, 95 % CI 1.03–1.83, p = 0.033 and per one day increase, adjusted OR 1.11, 95 % CI 1.02–1.21, p = 0.015). Of 23 cases followed at 36 months, 8 (34.8 %) showed developmental delay. Conclusion: The survival rate was significantly higher than the previous studies, yet many of the survivors experienced short-term severe morbidity. Of those who experienced short-term severe morbidity, however, more than half showed normal range development at 36 months. Keywords: Preterm premature rupture of membrane, Near the limit of viabilityhttp://www.sciencedirect.com/science/article/pii/S2590161319301358
spellingShingle Sumire Sorano
Mayumi Fukuoka
Kaori Kawakami
Yoshihito Momohara
Prognosis of preterm premature rupture of membranes between 20 and 24 weeks of gestation: A retrospective cohort study
European Journal of Obstetrics & Gynecology and Reproductive Biology: X
title Prognosis of preterm premature rupture of membranes between 20 and 24 weeks of gestation: A retrospective cohort study
title_full Prognosis of preterm premature rupture of membranes between 20 and 24 weeks of gestation: A retrospective cohort study
title_fullStr Prognosis of preterm premature rupture of membranes between 20 and 24 weeks of gestation: A retrospective cohort study
title_full_unstemmed Prognosis of preterm premature rupture of membranes between 20 and 24 weeks of gestation: A retrospective cohort study
title_short Prognosis of preterm premature rupture of membranes between 20 and 24 weeks of gestation: A retrospective cohort study
title_sort prognosis of preterm premature rupture of membranes between 20 and 24 weeks of gestation a retrospective cohort study
url http://www.sciencedirect.com/science/article/pii/S2590161319301358
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AT kaorikawakami prognosisofpretermprematureruptureofmembranesbetween20and24weeksofgestationaretrospectivecohortstudy
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