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Does surgical relief of obstruction improve prognosis for hypertrophic cardiomyopathy?

Ronald E Ross1, Mark V Sherrid, Mairead M Casey

  • 1Department of Surgery, St Luke's-Roosevelt Hospital Center, Columbia University College of Physicians and Surgeons, New York, NY 10025, USA.

Progress in Cardiovascular Diseases
|June 13, 2012
PubMed

Insights

Surgical myectomy is a safe and effective treatment for hypertrophic cardiomyopathy (HCM). This procedure offers excellent long-term survival rates, comparable to the general population, for patients with symptomatic obstructive HCM.

Area of Science:

  • Cardiology
  • Genetics
  • Surgical Outcomes

Background:

  • Hypertrophic cardiomyopathy (HCM) presents complex prognostic challenges due to genetic heterogeneity and incomplete penetrance.
  • Existing data on septal myectomy outcomes primarily originates from specialized tertiary care centers.
  • Prognostic prediction in HCM is complicated by its unique genetic characteristics.

Purpose of the Study:

  • To evaluate the safety and efficacy of surgical myectomy for symptomatic obstructive HCM.
  • To assess long-term survival rates following septal myectomy.
  • To identify potential risk factors for mortality after HCM surgery.

Main Methods:

  • Retrospective review of 132 consecutive patients undergoing HCM surgery at a single institution.
  • Analysis of published septal myectomy data from 1980 to 2011.
  • Assessment of patient outcomes, including mortality and survival rates, at a mean follow-up of 4.2 years.

Main Results:

  • No in-hospital deaths (within 30 days) were observed in the studied cohort.
  • Overall survival rates at 1, 5, and 10 years were excellent: 99%, 99%, and 92%, respectively.
  • Age, comorbidities, and concomitant procedures were not significant mortality risk factors.

Conclusions:

  • Surgical myectomy is a safe and highly effective procedure for managing symptomatic obstructive HCM.
  • The procedure confers excellent long-term survival, mirroring that of the healthy population.
  • Septal myectomy provides a favorable prognosis for patients with obstructive hypertrophic cardiomyopathy.

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