Clinical features and outcomes of isoniazid mono-resistant pulmonary tuberculosis.

Objective: To determine the characteristics of pulmonary tuberculosis (TB) patients harbored organisms with isoniazid mono-resistant drug susceptibility pattern.

Material And Method: A retrospective review of medical records for all culture-proven adult pulmonary TB patients in Siriraj Hospital between July 2009 and July 2011 was conducted. Demographic data, clinical presentations, and radiological characteristics were recorded and compared between isoniazid mono-resistant and other-resistant groups.