Intrahepatic cholestasis of pregnancy: Review of six national and regional guidelines.

Intrahepatic cholestasis of pregnancy (ICP) is a poorly understood disease of the late second or third trimester of pregnancy, typically associated with rapid resolution following delivery. It is characterized by pruritis, elevated serum bile acids, and abnormal liver function tests and has been linked to stillbirth, meconium passage, respiratory distress syndrome and fetal asphyxial events. The incidence is highly variable, dependent both on the ethnic makeup of the population as well as the diagnostic criteria being used. Management is challenging for clinicians, as laboratory abnormalities often lag behind clinical symptoms making diagnosis difficult. The American Congress of Gastroenterology, Government of Western Australia Department of Health, the Royal College of Obstetricians and Gynaecologists, Society for Maternal Fetal Medicine, European Association for the Study of the Liver, and South Australia Maternal and Neonatal Community of Practice have all released guidelines to address the risks, diagnosis and management of ICP. We performed a descriptive review of these guidelines along with a literature search to address conflicting recommendations and highlight new evidence. The variations in the guidelines reflect the heterogeneity of the literature and the challenges of diagnosing and managing ICP.