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Saint Thomas Heart

Surgery for Hyperthrophic Cardiomyopathy (HMC)

Septal Myectomy is considered the safest and most durable way to reduce obstruction caused by Hypertropic CardioMyopathy (HCM) and to address severe symptoms. This open heart procedure involves cutting away part of the overgrown heart muscle to restore blood flow to the hypertrophic heart..   Removing part of this overgrown muscle improves blood flow and reduces mitral regurgitation.

Surgeons may conduct this procedure using different approaches, depending on the location of the thickened heart muscle. Surgeons may sometimes perform mitral valve repair at the same time as a myectomy. Septal myectomy is available only in medical centers that specialize in the treatment of hypertrophic cardiomyopathy.   With increased knowledge of the anatomy of the hypertrophic heart and with advanced imaging techniques, cardiovascular surgeons now are able to cut deeper and remove even more of the fibrous tissue that obstructs blood flow, achieving better results.  Many patients experience significant relief immediately after surgery.

A second surgical approach is septal ablation. In septal ablation, a small portion of the thickened heart muscle is destroyed by injecting alcohol through a long, thin tube, or catheter, into the artery supplying blood to that area.

A third surgical approach is an Implantable Cardioverter-Defibrillator (ICD). Your cardiologist may recommend an ICD if the patient has life-threatening heart rhythm disorders such as ventricular tachycardia or ventricular fibrillation. An ICD is a small device that continuously monitors heartbeat and is implanted in the chest like a pacemaker.  If a life-threatening arrhythmia occurs, the ICD delivers precisely calibrated electrical shocks to restore a normal heart rhythm. An ICD may be recommended in cases of hypertrophic cardiomyopathy with a high risk of sudden cardiac death due to abnormal heart rhythms.