Percutaneous Transcatheter Septal Myocardial Ablation (PTSMA/ASA)

Percutaneous transaortic septal myectomy (PTSMA) is suitable for obstructive patients with appropriate anatomical conditions. Usually, under local anesthesia or sedation, a catheter is inserted through an artery, a target septal branch is selected, and a small dose of ethanol is slowly injected to cause controlled necrosis and thin the hypertrophic muscle bundles after confirming the perfusion range with angiography and contrast ultrasound. Cardiac rhythm and hemodynamics are continuously monitored during the procedure, and temporary pacing is performed if necessary. Postoperative changes in conduction and pressure gradient are observed, with the goal of relieving obstruction and symptoms. The above is general health information and not medical advice; specific information is subject to specialist assessment and hospital protocols.