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Evaluation of the physicians' approach to the diagnosis and treatment of patients with antituberculosis drug-induced hepatotoxicity.

Abstract：

OBJECTIVES:To describe the practices of physicians on the diagnosis and treatment of antituberculosis drug-induced hepatotoxicity (ATH), and to evaluate the concordance between these practices and the American Thoracic Society (ATS) 2006 guidelines. METHODS:Information was reviewed on 670 new cases of tuberculosis patients aged not less than 15 years and registered at the outpatient clinics of a large hospital in southern Thailand during October 2006 to September 2009. The patient was identified as having ATH if: (1) he/she was diagnosed as transaminitis, hepatitis or hepatotoxicity from antituberculosis (anti-TB) drugs; (2) their treatment regimen was subsequently modified by their attending physicians; and (3) their liver enzyme decreased after withdrawal of the suspected anti-TB drugs. Compliance with the ATS guidelines was considered on diagnosis, initial management, selection of alternative regimens, and a reintroduction strategy. RESULTS:The prevalence of ATH was 6.7%. The proportion of patients diagnosed as ATH in accordance with the ATS 2006 guidelines was 73.8%. For the initial management, isoniazid, rifampicin and pyrazinamide were concurrently stopped in 55.0% of patients. While waiting for normalization of liver enzymes, 28 patients (70.0%) were treated with alternative regimens and 12 patients (30.0%) took no drug. Only 47.5% of the ATH patients received a regimen in accordance with ATS guidelines, including three less hepatotoxic drugs (ethambutol, ofloxacin and streptomycin). Of 34 patients who discontinued the treatment, anti-TB drugs were reintroduced sequentially in 30 patients (88.2%). Of these, only 23.4% were firstly rechallenged with rifampicin as suggested by the ATS guidelines. CONCLUSIONS:The practice of physicians on the diagnosis and management of ATH varied. The practices of physicians on the diagnosis and rechallenged method were in high compliance with the ATS guidelines. For the initial management and selection of alternative regimens, the physicians' compliance was not good.

journal_name

J Eval Clin Pract

journal_title

Journal of evaluation in clinical practice

authors

Thongraung W,Sittidach M,Khwansuwan P,Sariyasuntorn K,Wongsampan S

doi

10.1111/j.1365-2753.2011.01706.x

subject

Has Abstract

pub_date

2012-12-01 00:00:00

pages

1119-25

issue

eissn

1356-1294

issn

1365-2753

journal_volume

pub_type

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Evaluation of the physicians' approach to the diagnosis and treatment of patients with antituberculosis drug-induced hepatotoxicity.