The purpose of this study is to identify the clinical features, management pattern and long-term outcomes of patients with pulmonary arteries involvement in Takayasu's arteritis (TAK-PAI).
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
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