Clinical Research Directory

Inclusion Criteria: * Hospitalized between Jan 1, 2016 and Dec 31, 2026 * Diagnosed with TAK according to the modified Ishikawa criteria and/or 1990 American College of Rheumatology criteria and/or 2022 ACR/EULAR criteria * Diagnosed with pulmonary artery involvement using computed tomography pulmonary angiography or transcatheter pulmonary angiography * Patients without aortic or primary branch involvement who nonetheless exhibited both clinical features and computed tomography-confirmed evidence of pulmonary artery involvement (PAI), after exclusion of other diseases causing pulmonary artery stenosis or occlusion Exclusion Criteria: * Patients with PAI caused by non-TAK diseases such as other types of vasculitis, fibrosing mediastinitis, pulmonary artery sarcoma, pulmonary sarcoidosis or chronic thromboembolic pulmonary hypertension