Amniotic fluid embolism as a cause of maternal mortality in China between 1996 and 2013: A population-based retrospective study: A population-based retrospective study

Yi Mu, Nolan McDonnell, Zhuoyang Li, Juan Liang, Yanping Wang, Jun Zhu, Elizabeth Sullivan

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    Abstract

    Background: To analyse the maternal mortality ratio, demographic and pregnancy related details in women who suffered a fatal amniotic fluid embolism (AFE) in China. Methods: A retrospective population based study using data collected as part of the National Maternal Mortality Surveillance System between 1996 and 2013. Data were collected onto a standardised form from women whose cause of death was listed as being secondary to AFE. Results: Records were available for 640 deaths. Over the 17 year period the maternal mortality ratio for AFE decreased from 4.4 per 100,000 births (95 % confidence interval (CI):2.72-6.12) to 1.9 per 100,000 births (95 % CI:1.35-2.54). Over the same period the proportion of maternal deaths secondary to AFE increased from 6.8 to 12.5 %. The mean age of women who died was 30.1 years and the onset of the AFE occurred prior to delivery in 39 %. The most prominent presenting features included premonitory symptoms (29 %), acute fetal compromise (28 %), maternal haemorrhage (16 %) and shortness of breath (15 %). Conclusions: Maternal mortality secondary to AFE has decreased in China, however at a slower rate than mortality secondary to other conditions. Active surveillance is recommended to assess case fatality rates, risk factors and other lessons specific to this population.

    Original languageEnglish
    Article number316
    Pages (from-to)1-8
    Number of pages8
    JournalBMC Pregnancy and Childbirth
    Volume16
    Issue number1
    DOIs
    Publication statusPublished - 19 Oct 2016

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