Highlights
In this multicentre Dutch registry of 335 patients with hypertrophic obstructive cardiomyopathy, surgical myectomy produced marked early haemodynamic improvement, with the mean resting left ventricular outflow tract gradient falling from 61 ± 30 mmHg to 13 ± 12 mmHg.
Thirty-day adverse outcomes were not negligible: mortality was 5%, stroke 3%, ventricular septal defect 2%, and surgical reoperation 2%.
