Background: Epidemiologic characteristics of nontuberculous mycobacterial (NTM) disease remain largely unknown. The objective of this study was to evaluate incidence, prevalence, and mortality of NTM infection in a large nationwide population-based cohort in Korea.
Methods: Data of the National Health Insurance Service database, an extensive health-related database including most Korean residents, were used.
Background: The prevalence and incidence of sarcoidosis, a granulomatous disorder involving multiple organ systems, varies among geographical regions and ethnicities. This study evaluated the incidence, prevalence, and mortality of sarcoidosis in a large nationwide population-based cohort in Korea.
Methods: We used data of the National Health Insurance Service database, which is an extensive health-related database including most Korean residents.
Background And Objective: Pulmonary tuberculosis (TB) is a risk factor for chronic obstructive pulmonary disease (COPD); however, few clinical studies have investigated treatment effectiveness in COPD patients with destroyed lung by TB. The Indacaterol effectiveness in COPD patients with Tuberculosis history (INFINITY) study assessed the efficacy and safety of once-daily inhaled indacaterol 150 µg for the treatment of Korean COPD patients with destroyed lung by TB and moderate-to-severe airflow limitation.
Methods: This was a multicenter, double-blind, parallel-group study, in which eligible patients were randomized (1:1) to receive either once-daily indacaterol 150 µg or placebo for 8 weeks.
Background: Computed tomography (CT) may be useful for increasing the diagnostic yield of transbronchial lung biopsy (TBLB). However, only a few studies with small sample sizes have reported the diagnostic utility of CT-guided TBLB and the factors affecting the diagnostic accuracy of CT-guided TBLB are not well known. We evaluated the diagnostic yield of CT-guided TBLB and associated factors.
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