Table 3.

Effectiveness

	Unmatched Group (total n=334)					Matched Group (total n=172)
	Resection (n=248)		Neochordae (n=86)			Resection (n=86)		Neochordae (n=86)
		No. (%) or		No. (%) or			No. (%) or		No. (%) or
Variable	na	Mean ± SD	na	Mean ± SD	P	na	Mean ± SD	na	Mean ± SD	P
Residual MR
Residual MR degree: preceding    discharge or MV reoperation	219		76		.14	72		76		.5
0		196 (89)		62 (82)			64 (89)		62 (82)
1+		18 (8.2)		11 (14)			6 (8.3)		11 (14)
2+		5 (2.3)		2 (2.6)			2 (2.8)		2 (2.6)
3+		0 (0)		0 (0)			0 (0)		0 (0)
4+		0 (0)		1 (1.3)			0 (0)		1 (1.3)
Systolic Anterior Motion
SAM detected postoperatively     after initial repair	248	3 (1.2)	86	0 (0)	.3	86	0 (0)	86	0 (0)	__
MV Reoperation
MV reoperation performed     during same hospitalization	248	4 (1.6)	86	1 (1.2)	.8	86	1 (1.2)	86	1 (1.2)	>.9

^aPatients with data available.

Key: MR, mitral regurgitation; MV, mitral valve; SAM, systolic anterior motion; SD, standard deviation.