PMID: 6538990Mar 31, 1984Paper

Long-term postoperative course and surgical indications in patients with hypertrophic obstructive cardiomyopathy

Schweizerische medizinische Wochenschrift
D Gobet, M E Rothlin

Abstract

Operative results and late follow-up of 63 patients undergoing surgery for hypertrophic obstructive cardiomyopathy (HOCM) were analyzed in relation to the surgical indication. There were 64 postoperative follow-ups because one patient had two myectomy operations. 27 patients without limiting symptoms (group A) were operated on because of a pressure gradient of more than 50 mm Hg. 31 patients (group B) underwent myectomy operation because of limiting symptoms, and 5 patients (group C) required additional surgery because of mitral incompetence or left ventricular aneurysm. Comparison of preoperative clinical and hemodynamic data indicate that patients of group B were in a more advanced stage of disease than patients of group A. Operative mortality was low, with one perioperative death. Operative complications were rare, and after adequate treatment caused no significant morbidity. The left ventricular systolic pressure gradient was relieved in almost every case, with simultaneous reduction of left ventricular enddiastolic pressure. With a few exceptions the patients experienced longstanding improvement of symptoms. Durability of symptomatic improvement and survival were significantly better in patients of group A. Late results in...Continue Reading

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