Table 4. Early complications and late operative outcome.

Variables	N = 494
Early complications
Perioperative death	1 (0.20)
Permanent pacemaker	14 (2.83)
Reoperation for bleeding	2 (0.40)
Wound infection	3 (0.61)
Iatrogenic VSD	4 (0.81)
Postoperative heart function
NYHA class III or IV*	23 (4.66)
Residual LVOT gradient >30 mmHg	36 (7.29)
Maximal residual LVOT gradient >50 mmHg	8 (1.62)
Residual moderate or severe MR (2–3)†	26 (5.26)
Non-cardiac death (lung cancer)	1 (0.20)
Cardiovascular death
Sudden cardiac death	5 (1.01)
Resuscitation from SCD	5 (1.01)
Death due to congestive heart failure	1 (0.20)
Nonfatal cardiovascular events
Onset of CHF requiring hospitalization intervention	29 (5.87)
Stroke	10 (2.02)
Arterial thromboembolic events	2 (0.40)
Repeated myectomy	1 (0.20)
Pericardiectomy for pericardial effusion	3 (0.61)

The values shown are n (%). ^*None patient belonged to NYHA heart function classification IV. ^†No patients presented with severe MR (grade 3) postoperatively. CHF: congestive heart failure; LVOT: left ventricle outflow tract; MR: mitral regurgitation; NYHA: New York Heart Association; SCD: sudden cardiac death; VSD: ventricular septal defect