Journal
AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY
Volume 213, Issue 4, Pages -Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.ajog.2015.06.021
Keywords
bile acid; intrahepatic cholestasis of pregnancy; neonatal outcome; ursodeoxycholic acid
Categories
Funding
- NCATS NIH HHS [UL1 TR001409, UL1 TR001439, UL1TR000101, UL1 TR000101] Funding Source: Medline
- NCRR NIH HHS [UL1 RR031975] Funding Source: Medline
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OBJECTIVE: We sought to determine predictors of adverse neonatal outcomes in women with intrahepatic cholestasis of pregnancy (ICP). STUDY DESIGN: This study was a multicenter retrospective cohort study of all women diagnosed with ICP across 5 hospital facilities from January 2009 through December 2014. Obstetric and neonatal complications were evaluated according to total bile acid (TBA) level. Multivariable logistic regression models were developed to evaluate predictors of composite neonatal outcome (neonatal intensive care unit admission, hypoglycemia, hyperbilirubinemia, respiratory distress syndrome, transient tachypnea of the newborn, mechanical ventilation use, oxygen by nasal cannula, pneumonia, and stillbirth). Predictors including TBA level, hepatic transaminase level, gestational age at diagnosis, underlying liver disease, and use of ursodeoxycholic acid were evaluated. RESULTS: Of 233 women with ICP, 152 women had TBA levels 10-39.9 mu mol/L, 55 had TBA 40-99.9 mu mol/L, and 26 had TBA >= 100 mu mol/L. There was no difference in maternal age, ethnicity, or prepregnancy body mass index according to TBA level. Increasing TBA level was associated with higher hepatic transaminase and total bilirubin level (P <.05). TBA levels >= 100 mu mol/L were associated with increased risk of stillbirth (P <.01). Increasing TBA level was also associated with earlier gestational age at diagnosis (P <.01) and ursodeoxycholic acid use (P =.02). After adjusting for confounders, no predictors were associated with composite neonatal morbidity. TBA 40-99.9 mu mol/L and TBA >= 100 mu mol/L were associated with increased risk of meconium-stained amniotic fluid (adjusted odds ratio, 3.55; 95% confidence interval, 1.45-8.68 and adjusted odds ratio, 4.55; 95% confidence interval, 1.47-14.08, respectively). CONCLUSION: In women with ICP, TBA level >= 100 mu mol/L was associated with increased risk of stillbirth. TBA >= 40 mu mol/L was associated with increased risk of meconium-stained amniotic fluid.
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