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[Septal myectomy for obstructive hypertrophic cardiomyopathy: the gold standard]

Joseph A Dearani1, Hartzell V Schaff, Steve R Ommen

  • 1Division of Cardiovascular Surgery, Mayo Clinic and Foundation, Minnesota 55905, USA. dearani.joseph@mayo.edu

Zhonghua Xin Xue Guan Bing Za Zhi
|October 2, 2009
PubMed

Insights

Septal myectomy is a highly effective treatment for obstructive hypertrophic cardiomyopathy (HCM), significantly improving cardiac symptoms and quality of life. This surgical procedure offers excellent long-term outcomes and improved survival rates for patients with HCM.

Area of Science:

  • Cardiovascular Surgery
  • Cardiology
  • Genetics

Context:

  • Obstructive hypertrophic cardiomyopathy (HCM) presents significant challenges in symptom management and long-term prognosis.
  • Current treatment strategies aim to alleviate left ventricular outflow tract (LVOT) obstruction and associated cardiac symptoms.

Purpose:

  • To evaluate the efficacy and long-term outcomes of septal myectomy in adults and children with obstructive HCM.
  • To assess the management of concomitant mitral valve abnormalities during septal myectomy.

Summary:

  • Septal myectomy effectively relieves LVOT obstruction and cardiac symptoms in obstructive HCM patients.
  • Mitral valve repair is feasible in most cases, with replacement rarely needed.
  • Early mortality is low (~1%) in experienced centers, with excellent and improving long-term results.

Impact:

  • Symptomatic improvement is observed in the majority of patients, with 90% improving at least one functional class.
  • Late survivorship is enhanced compared to nonoperated obstructive HCM patients.
  • Septal myectomy provides a gold standard for comparison with emerging nonsurgical treatments like septal alcohol ablation.

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