Hyperemesis gravidarum causing Wernicke-Korsakoff syndrome: A rare complication.

Wernicke-Korsakoff syndrome (WKS) is a rare neurological disorder due to severe thiamine deficiency. It is most prevalent among alcoholics. However in nonalcoholics the prevalence varies from 0.04% to 0.13%. We report a case of WKS due to hyperemesis gravidarum. Primigravida patient with 16 weeks pregnancy with continuous vomiting for 1 month developed Wernicke's encephalopathy which progressed to Korsakoff psychosis. Patient was conservatively managed till term with appropriate thiamine replacement and antipsychotics. She developed oligohydramnios with late intrauterine growth retardation. Elective cesarean was done at 36 weeks. Female child with birth weight of 2.2 kg was born. Hyperemesis is a rare cause of WKS. This patient was inappropriately treated with dextrose and antiemetic without proper thiamine replacement. This case report highlights the importance of thiamine replacement and proper management of hyperemesis gravidarum with a scientific approach to prevent fatal complications like WKS.