Evaluation of Clinical Efficacy and Prognosis in Patients with Hypertrophic Obstructive Cardiomyopathy Through Hemodynamic Modeling Reconstructed by CT

Our procedure was performed via a right infra-axillary incision (4-5 cm), enter the thoracic cavity through the third intercostal space lateral to the pectoralis major muscle. Generally, neither rib resection nor division of the pectoralis major muscle were required. The intervention utilized femoral-femoral cardiopulmonary bypass (CPB). The aorta was clamped using a Glauber clamp (CardioVision MICAortic Clamp, Cardiomedical GmbH). Myocardial protection was achieved with antegrade Del Nido cardioplegia. After inducing of cardiac asystole, a transverse incision was made in the aorta and the aorta incision was suspended to enhance visualization. A mesh retractor (FEHLING INSTRUMENTS, Karlstein, Germany) was placed in the aortic sinus to protect the aortic leaflets. The extent of the septal myectomy, determined based on preoperative TEE, started 5 mm below the midpoint of the right coronary cusp. It extended counterclockwise towards the anterior commissure of the mitral valve a