A case of drug-induced hypersensitivity syndrome caused by levofloxacin used for treating pulmonary tuberculosis
Abstract
The patient was a 27-year-old man with pulmonary tuberculosis, who was initially treated with isoniazid, rifampicin, ethambutol, and pyrazinamide. However, because of hepatic dysfunction and visual impairment, the four-drug therapy was switched to a three-drug regimen with isoniazid, rifampicin, and levofloxacin. At 9 weeks after the initiation of levofloxacin, the patient developed cervical lymphadenopathy, fever, systemic erythema, and hepatic dysfunction. He was diagnosed with drug-induced hypersensitivity syndrome (DIHS) based on positive results in the human herpesvirus (HHV)-6 DNA test, an indicator of HHV-6 reactivation. The symptoms improved after withdrawal of the antituberculosis drugs and initiation of steroid administration. However, considering the risk of relapse of DIHS, the tuberculosis treatment, which was initially planned for 9 months, was stopped at 7 months. Neither DIHS nor tuberculosis recurred.
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Evidence Hub reads this as a case report, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.
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