Hyperemesis Gravidarum: Can Factors Predict Risk of Readmission?
ACOG ePoster. White S. Apr 27, 2018; 211589; 21L
Sarah White
Sarah White
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Introduction: Hyperemesis gravidarum is one of the most common indications for admission in pregnancy. Because some women require re-hospitalization, we hypothesized that the risk for readmission could be identified. The aim of this study was to use patient characteristics and index admission features to determine the risk for readmission.

Methods: This was a retrospective cohort study of women admitted with hyperemesis gravidarum at our hospital. Hyperemesis gravidarum was defined as intractable nausea and vomiting with either electrolyte derangement, 10lb weight loss, or persistent ketonuria suggesting dehydration. Women with alternative etiologies for persistent nausea and vomiting were excluded. Women requiring more than one hospitalization for hyperemesis gravidarum were compared to those with one admission to determine if any factors were associated with readmission during the same pregnancy.

Results: Between 2009 and 2014, a total of 144 women were admitted with hyperemesis gravidarum that comprised 247 hospital admissions. Fifty-one (35%) women required more than one hospitalization for hyperemesis gravidarum. Factors examined included maternal age, race, parity, habitus, substance use, smoking, and psychiatric illness. None of these features including length of initial hospitalization were found to be associated with the need for readmission. Of those delivered at our hospital, readmission was not associated with differing perinatal outcomes.

Conclusion/Implications: More than one-third of women with hyperemesis gravidarum required readmission at our hospital. Factors associated with need for readmission did not include maternal demographic features, substance use, or psychiatric illness. The length of hospitalization for the initial admission also was not associated with later readmission.
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