Key result
LV myectomy for HOCM yields ~85% 5-year survival and improves symptoms in most patients.
Why the study?
Long-term outcomes and effectiveness of left ventricular myotomy and myectomy for medically refractory hypertrophic obstructive cardiomyopathy were not well characterized.
Does left ventricular myotomy and myectomy improve survival and symptoms in patients with hypertrophic obstructive cardiomyopathy?
Population
158 patients with hypertrophic obstructive cardiomyopathy, mean age 50.2 years
Comparison
Not applicable, single-arm surgical cohort
Design
Retrospective observational cohort study
Follow-up
Mean 6.1 years
Authors
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Supports myectomy consideration in HOCM; extends retrospective data but leaves open need for prospective confirmation.
Observational (n=158)
Does left ventricular myotomy and myectomy improve survival and symptoms in patients with hypertrophic obstructive cardiomyopathy?
Left ventricular myotomy and myectomy is a safe and effective long-term treatment for medically refractory hypertrophic obstructive cardiomyopathy, providing significant symptom relief and favorable survival.
Robbins et al. (1996) conducted an observational in hypertrophic obstructive cardiomyopathy (n=158). Left ventricular myotomy and myectomy was evaluated on 30-day operative mortality. Left ventricular myotomy and myectomy for hypertrophic obstructive cardiomyopathy demonstrated a 3.2% 30-day operative mortality and 85.4% 5-year survival, with symptom improvement in most patients.
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