SURGICAL-CORRECTION OF HYPERTROPHIC OBSTRUCTIVE CARDIOMYOPATHY - 17-YEAR GREEN LANE EXPERIENCE

Between 1977 and 1994, 42 patients were treated surgically for hypertr ophic obstructive cardiomyopathy (HOCM), Patients have been followed u p between 2 months to 17 years, mean of 107 months, There were 26 (62% ) males and 16 (38%) females, There was only one pediatric case, There was no correlating factor among the ethnic groups (Maori, European, I ndian, Asian, etc.). Family history was noted in 12% of the cases. Sev enty-one percent of patients had aortic/left ventricular (LV) combined approach while 29% had aortic approach alone at the time of surgery. Five patients underwent other procedures, along with coronary artery b ypass grafting in 3, mitral valve replacement in 1, and aortic valve r eplacement in 1, Persistant postoperative arrhythmias were found in 7 cases, atrial fibrillation (AF) in 3, and left bundle branch block in 4.