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Sudden Fetal Death in Intrahepatic Cholestasis of Pregnancy

BACKGROUND: Intrahepatic cholestasis of pregnancy is associated with an increased risk of fetal death. The mechanism of death is unknown. CASES: The first case involved a young primipara with pruritus and a bile acid concentration of 79 &mgr;mol/dL. While undergoing fetal heart rate monitoring, the fetus had a prolonged deceleration resulting in intrauterine death. The second case involved a young multipara with cholestasis who received ursodeoxycholic acid. Her bile acid concentration improved to13 &mgr;mol/dL. At 34 weeks of gestation, she had uterine contractions with prolonged decelerations resulting in delivery of her fetus with Apgar scores of 0, 0, and 5 at 1, 5, and 10 minutes, respectively. CONCLUSION: Fetal death from intrahepatic cholestasis of pregnancy can be abrupt and not reliably predicted by the characteristics of the fetal heart rate tracing.