Proceedings of the International scientific and practical conference ―Paris Science and Education Forum‖ (March 2-4, 2026) / Publisher website: www.naukainfo.com. – Paris, France, 2026. - 293 p.

241 MEDICAL SCIENCES AND PUBLIC HEALTH UDC 616.12-008.6-06-036.6-021.383-039.5-07-037-089.843 Vasilyeva Larysa Ivanivna PhD in Medicine, Associate Professor of the Department of Internal Medicine 3 Dnipro State Medical University Kalashnykova Oksana Serhiivna PhD in Medicine, Associate Professor of the Department of Internal Medicine 3 Dnipro State Medical University MULTIDISCIPLINARYAPPROACH TO THE MANAGEMENT OFA PATIENT WITH A RARE FORM OF COMBINED CARDIOMYOPATHY Abstract. This article presents a unique clinical case of a female patient with an exceptionally complex form of hypertrophic cardiomyopathy, combined with a subaortic muscular membrane and a fixed-dynamic obstruction of the left ventricular outflow tract. The patient had multiple atrial arrhythmias (atrial fibrillation and flutter), underwent repeated catheter procedures (extended transcatheter substrate modifications for arrhythmia), and developed complications leading to stiff left atrium syndrome with atrial wall calcification and severe pulmonary hypertension with pulmonary artery aneurysm. The necessity of heart–lung transplantation is substantiated. The material has educational and practical value for specialists. Keywords: cardiomyopathy, transplantation, atrial fibrillation and flutter, stiff left atrium, pulmonary hypertension, medical education.