biostudies-literatureUnknown3(4)Prieto GPulmonary artery pseudoaneurysms are rare, life-threatening conditions linked to trauma, infection, or congenital anomalies such as patent ductus arteriosus. A 40-year-old man with an untreated patent ductus arteriosus and endocarditis presented in mixed cardiogenic and septic shock. Imaging identified a large pseudoaneurysm, a restrictive patent ductus arteriosus, and severe aortic valve disease. He underwent successful open surgical repair with aortic valve replacement, ductus closure, and pseudoaneurysm resection using a pericardial patch. A surgical video documenting the procedure offers an educational resource for managing similar cases. This case emphasizes the importance of individualized surgical strategies and multidisciplinary care for optimizing outcomes in high-risk patients.Annals of thoracic surgery short reports1056-1059https://www.ebi.ac.uk/biostudies/studies/S-EPMC12712201biostudies-literatureChronic Pulmonary Artery Pseudoaneurysm Associated With Patent Ductus Arteriosus and Endocarditis.PMC12712201Gomez-Gutierrez MAPrieto GMontes LVanegas JfalseChronic Pulmonary Artery Pseudoaneurysm Associated With Patent Ductus Arteriosus and Endocarditis.Pulmonary artery pseudoaneurysms are rare, life-threatening conditions linked to trauma, infection, or congenital anomalies such as patent ductus arteriosus. A 40-year-old man with an untreated patent ductus arteriosus and endocarditis presented in mixed cardiogenic and septic shock. Imaging identified a large pseudoaneurysm, a restrictive patent ductus arteriosus, and severe aortic valve disease. He underwent successful open surgical repair with aortic valve replacement, ductus closure, and pseudoaneurysm resection using a pericardial patch. A surgical video documenting the procedure offers an educational resource for managing similar cases. This case emphasizes the importance of individualized surgical strategies and multidisciplinary care for optimizing outcomes in high-risk patients.2025-01-01T00:00:00Z2025 Dec2026-06-08T03:11:55.668Z2026-06-08T03:08:43.955ZS-EPMC127122014142539510.1016/j.atssr.2025.06.027