Elective interval thoracic endovascular aortic repair versus medical management for uncomplicated type B aortic dissection among Medicare patients

Objective: To compare elective interval thoracic endovascular aortic repair (TEVAR) with ongoing medical management (MM) within 90 days for uncomplicated type B aortic dissection (uTBAD). Methods: Medicare MedPar files from 2001 to 2020 were queried for patients with acute uTBAD who were discharged after index hospitalization without operative intervention. The exposure was elective interval TEVAR versus MM within the first 90 days. Outcomes were overall survival, aortic reintervention, and reintervention-free survival. Propensity score matching, Kaplan-Meier analysis and Fine-Gray regression landmarking at 90 days were used. Results: = .04). Conclusions: Among Medicare patients with acute uTBAD, there was no associated difference in overall survival or reintervention free survival between ongoing MM and elective interval TEVAR within 90 days.