[Clinical characteristics of drug-induced liver injury in 31 pediatric cases]

Shu-zhen Wang, Shan Gao, Yan-min Liu, Yun-li Huang, Yi-shen Chen, Xin-xin Wang, Wei Lin, Chun-yang Huang, Hui-yu Liao
Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology 2012, 20 (3): 193-5

OBJECTIVE: To investigate the clinical characteristics and responsible agents of drug-induced liver injury (DILI) in pediatric patients.

METHODS: Thirty-one cases of DILI treated in our hospital's pediatric ward were retrospectively analyzed. The clinical data for each patient were extracted from the patient's medical records, and included reported causes, physical and biochemical features, natural history, blood examination results, and hepatic pathology findings.

RESULTS: The 31 pediatric cases of DILI accounted for 1.7% of the 1831 total cases of drug-induced liver injury treated at our hospital between February 2002 to June 2011. The pediatric DILI population was composed of 20 males and 11 females, with an average age of 8.8+/-3.9 years old (range, 0.3-14.0). The liver injury patterns represented among the cases were: hepatocellular (25.8%), cholestasis (25.8%), and mixed hepatocellular-cholestatic (48.4%). Antimicrobials were the most common cause (41.9%) of DILI, followed by the herbal medicine (29.0%) and febrifuge drugs (19.4%). A single drug was implicated in nine cases (29.0%), and two or more drugs were implicated in 22 cases (71%). Most of the children had good prognosis, but those with pre-existing disease had poor prognosis. One child died of hepatic failure, making the death rate 3.23%. The average hospitalization time was 25.2 days, and the patients with hepatocellular injury had shorter hospitalization time than those with mixed injury.

CONCLUSION: Drug-induced liver injury in our pediatric population was most often caused by antimicrobials, followed by herbal medicine and febrifuge drugs. Most patients presented with mixed hepatocellular-cholestatic injury. Children with pre-existing diseases or hepatic failure had poor prognosis.

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