Predictive value of less than moderate residual mitral regurgitation as assessed by transesophageal echocardiography for the short-term outcomes of patients with mitral regurgitation treated with mitral valve repair

Table 3 Causes of mitral regurgitation (transesophageal ECHO).

Causes	Group 1 (n = 54)	Group 2 (n = 44)	P value
Mitral valve prolapse, n (%)	43 (80)	29 (66)	0.13
Rheumatic heart disease, n (%)	2 (4)	2 (5)	0.82
Endocarditis, n (%)	3 (6)	1 (2)	0.78
Chordal rupture, n (%)	4 (7)	1 (2)	0.50
Congenital anomaly, n (%)	1 (2)	0 (0)	0.91
Mitral annular dilatation, n (%)	6 (11)	5 (11)	0.97
Left ventricular wall motion abnormality, n (%)	13 (24)	11 (25)	0.92