Table 2.

Operative procedures concomitant to septal myectomy in the 124 study patients

Coronary artery bypass graft, n (%)	9 (7.3)
Mitral valve replacement, n (%)	2 (1.6)
Mitral valve repair, n (%)	7 (5.6)
Aortic valve replacement, n (%)	2 (1.6)
Epicardial cardioverter defibrillator, n (%)	1 (0.8)
Surgical Ablation of atrial fibrillation, n (%)	9 (7.3)
Unroofing of anterior descending coronary artery, n (%)	1 (0.8)
Subvalvular mitral apparatus
Resection of fibrous–muscular attachments between papillary muscle and ventricular septum or LV free wall, n (%)	124 (100)
Excision of anomalous chordal attachments between mitral valve leaflets and ventricular septum or LV free wall, n (%)a	11/91 (12.1)
Resection of anomalous attachment of the papillary muscle into the anterior mitral valve leaflet, n (%)a	2/91 (2.2)

^aData were available in 91 of the 124 study patients.