Table 3.

Operative procedures

	Stage 1 (N = 30)	Stage 2 (N = 26)	Stage 3 (N = 34)	P values
Mitral annuloplasty	30 (100%)	26 (100%)	34 (100%)	n/a
Ring size, mm	26 ± 5	27 ± 1	27 ± 1	0.70
Papillary muscle approximation, n (%)	0	26 (100)	34 (100%)	<0.001
Papillary muscle suspension, n (%)	0	17 (65%)	17 (50%)	<0.001
Overlapping left ventriculoplasty, n (%)	0	0	29 (85%)	<0.001
Partial left ventriculectomy, n (%)	0	0	5 (15%)	0.039
CABG, n (%)	29 (97%)	25 (96%)	28 (82%)	0.11
No. of distal anastomoses	3.2 ± 1.3	3.5 ± 1.4	2.8 ± 1.8	0.32
Tricuspid annuloplasty, n (%)	8 (28%)	17 (65%)	24 (71%)	0.001
Aortic valve replacement, n (%)	2 (8%)	6 (23%)	1 (3%)	0.039
Maze, n (%)	8 (28%)	1 (4%)	4 (12%)	0.045
Cardiopulmonary bypass time, min	243 ± 62	301 ± 81	260 ± 71	0.031
Crossclamp time, min	139 ± 30	186 ± 45	152 ± 42	<0.001
Urgent operation, n (%)	1 (3%)	2 (8%)	2 (6%)	0.86
Redo surgery, n (%)	5 (17%)	1 (4%)	4 (12%)	0.31
Circulatory support, n (%)
Preoperatively required
IABP	1 (3%)	2 (8%)	8 (24%)	0.044
PCPS	0	0	1 (3%)	1.0
Intraoperatively required
IABP	1 (3%)	3 (12%)	5 (15%)	0.30
PCPS	0	0	1 (3%)	1.0

CABG: coronary artery bypass grafting; IABP: intraaortic balloon pumping; PCPS: percutaneous cardiopulmonary support