Five-day outcome of hepatitis E-induced acute liver failure in the ICU
2021
Hepatitis E virus (HEV) is an important cause of acute liver failure (ALF) in Bangladesh with pregnant mothers being more vulnerable. As HEV occurs in epidemics, it limits medical capabilities in this resource-poor country. Cerebral oedema, resulting in raised intracranial pressure (ICP), is an important cause of morbidity and mortality. Practical treatments are currently few.
This was a prospective cohort study from June until August 2018 of 20 patients admitted to the intensive care unit (ICU) of a major Bangladeshi Referral Hospital with HEV-induced ALF. We diagnosed HEV infection by detecting serum anti-HEV IgM antibody. All were negative for hepatitis B surface antigen and hepatitis A IgM antibody. Data were collected on 5-day outcome after admission to ICU, monitoring all patients for signs of raised ICP. An intravenous bolus of 20% mannitol was administered at a single time point to patients with raised ICP. Twenty patients were included in the study. Ten (50%) patients, seven (70%) females, received mannitol infusion. HE worsened in eight (40%): seven female and three pregnant. Glasgow Coma scores deteriorated in six (30%): all (100%) females and three pregnant. Consciousness status was not significantly different between pregnant and non-pregnant subjects, nor between those who received mannitol and those who did not. Six patients met King’s College Criteria for liver transplantation. Female patients had a worse outcome, but pregnancy status was not an additional risk factor in our cohort. Mannitol infusion was also not associated with a significant difference in outcome.
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