Surgical myectomy improves pulmonary hypertension in obstructive hypertrophic cardiomyopathy

The authors of this study investigated the effect of myectomy on pulmonary hypertension in patients with hypertrophic cardiomyopathy (HCM). In a retrospective study of 306 HCM patients, they found that myectomy was associated with an evident reduction in right ventricular systolic pressure (RVSP), both in patients with moderate/severe PH and in all patients with PH (RVSP>35mmHg). Their findings can help to guide therapeutic expectations and provide insight into pulmonary haemodynamics following obstruction relief.