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Acute Fatty Liver of Pregnancy

Abstract Acute fatty liver of pregnancy is a rare but serious and potentially fatal complication of pregnancy. It typically presents in the third trimester with microvesicular fatty infiltration of the liver and can lead to multiorgan failure and death. Differentiation from hemolysis-elevated liver enzymes-low platelets syndrome can guide management. A high index of suspicion is necessary in the appropriate clinical setting to identify clinical manifestations and complications and manage them appropriately. In severe cases, prompt delivery can be lifesaving for the mother and fetus. Liver transplantation remains controversial and must be considered individually. Defects in fatty acid oxidation secondary to various enzymatic deficiencies have been associated with acute fatty liver of pregnancy. Women or couples with known defects in fatty acid oxidation and women with a history of previous liver disease during pregnancy or sudden death of a child within the first 2 years of life should be assessed for a defect in fatty acid oxidation and monitored carefully. Our review summarizes the current knowledge in pathophysiology, diagnostic approach and management of this disorder.