[Incidence and outcome of anti-tuberculosis drug-induced hepatotoxicity in tuberculosis inpatients]

Based on the medical records and follow-up records of hospitalized patients who received anti-tuberculosis therapy in the Third People's Hospital of Zhenjiang in Jiangsu province from 2006 to 2012, we investigated the incidence and outcome of anti-tuberculosis drug induced hepatotoxicity(ATDH)and provided evidence for the prevention of ATDH.

According to tuberculosis patients' medical information and liver function test records, ATDH patients were diagnosed according to the criteria of International Consensus Meeting and American Thoracic Society respectively, then the related factors and outcomes were analyzed.

A total of 1 967 hospitalized tuberculosis patients were reviewed retrospectively, in which 1 403(71.3%)were men, 1 790(91.0%)were pulmonary tuberculosis patients, 1 528(77.8%)were patients receiving initiative treatment, 979(49.8%)were sputum smear-positive patients, and 1 297(65.9%)had other complicated diseases. According to the criterion of International Consensus Meeting, the incidence of ATDH was 16.5%, the median time of onset was 25 days. According to the criterion of American Thoracic Society, the incidence of ATDH was 8.3%, the median time of onset was 23 days. The incidence of ATDH was significantly higher in males and HRZE therapy group(P<0.05). Under the two liver criteria, 69.5% and 70.1% of the patients changed primary therapy respectively after ATDH occurred. 89.8% and 88.4% patients' liver function returned to normal range after changing or stopping therapy.

According to two liver injury criteria, the incidences of ATDH were 16.5% and 8.3% in hospitalized tuberculosis patients respectively, and ATDH mainly occurred in the first month of anti-tuberculosis treatment. The monitoring of liver function should be strengthened in males and HRZE therapy group to reduce the incidence of ATDH.