Maternal and Fetal Outcome in Intrahepatic Cholestasis of Pregnancy in a Multicultural Society Conducted at a Tertiary Care Hospital in Dubai

Abstract

Introduction: Intrahepatic cholestasis of pregnancy (ICP) has been sparsely studied especially in the Middle East. The incidence and outcome of ICP varies worldwide. Its incidence in the Middle East and primary maternal and fetal outcome must be evaluated to ascertain the burden so that appropriate preventive and intervention measures can be formulated and implemented. Objective: To assess the incidence, associations, and maternal-fetal outcomes in ICP. Design: Case-control study. Settings: tertiary care hospital settings affiliated with the academic center in the UAE. Patients and methods: a total of 150 patients were included from October 2016 to September 2018 in the study with 75 cases of ICP and 75 controls matched according to age and date of delivery. The maternal risk factors attributable to ICP were recorded. Biochemical profile of mothers was monitored. Maternal and fetal outcomes were compared in 2 groups. Main outcomes measured: incidence and associations of ICP were evaluated. Maternal and fetal outcomes were compared in cases and controls. Sample size: 150. Result: The incidence of ICP in our study in the UAE was 1.0%. ICP has significant association with past obstetric cholestasis history (p value <0.01, odds ratio [OR] 9.3, 95% CI: 2.1–41.8), gestational diabetes (p value <0.05, OR 2.0, 95% CI: 1.0–3.8), pre-eclampsia (p value <0.05, OR 7.2, 95% CI: 1.6–33.1), and undergoing induction of labor (p value <0.01, OR 8.1, 95% CI: 3.7–17.8). The maternal bile acid level above 40 μmol/L is ­associated with higher chances of preterm delivery (p value <0.01, OR 8.2, 95% CI: 3.0–22.5), intrauterine fetal demise (p value <0.01), low birth weight (p value <0.01, OR 13.6, 95% CI: 4.2–43.5), respiratory distress (p value <0.05, OR 15.5, 95% CI: 1.8–132.7), poor Apgar score (p value <0.05, OR 12.720, 95% CI: 1.5–111.4), and NICU admissions (p value <0.01, OR 9.0, 95% CI: 1.8–45.9). Conclusion: ICP mothers have low incidence in the UAE and significant association with gestational diabetes and pre-eclampsia. High maternal bile acids above 40 μmol/L have poor fetal outcomes.