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JOURNAL ARTICLE

Inpatient admissions for drug-induced liver injury: results from a single center

Elizabeth J Carey, Hugo E Vargas, David D Douglas, Vijayan Balan, Thomas J Byrne, M Edwyn Harrison, Jorge Rakela
Digestive Diseases and Sciences 2008, 53 (7): 1977-82
18392678
Objective To review all cases of drug-induced liver injury (DILI) requiring hospitalization at a single tertiary care center. Methods Patient records were identified by ICD-9 codes for inpatient visits from November 1998 through March 2006. Results Of a total 83,265 hospital admissions during the study period, 40 were for DILI (0.048%). Thirteen patients had non-acetaminophen DILI (NA-DILI); 27 had acetaminophen-related DILI (A-DILI). In the NA-DILI group, mean age was 59 +/- 17.9 years and liver injury was classified as hepatocellular (7), cholestatic (5), or mixed (1). A variety of medications were implicated with antimicrobials being the most common class. Resolution occurred in seven, two died of complications related to hepatotoxicity, one underwent liver transplantation, and the outcome was undetermined in three who were lost to follow-up. In the A-DILI group, mean age was 35 +/- 11.0 years. Eighteen involved intentional overdose of acetaminophen; nine were associated with chronic use. The pattern of injury was hepatocellular in all. Resolution occurred in 4 patients, death in 8, and improvement in 15. Conclusions DILI is a rare cause of inpatient admission but is associated with significant mortality. Spontaneous resolution occurs in most patients but return to normal liver function may take months. Antimicrobial agents account for the largest proportion of NA-DILI.

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