Quality of Mitral Valve Surgery Does Not Differ by Hospital Volume in New Jersey
Table 2
Admission types and mitral valve pathology of patients undergoing mitral valve repair and replacement in New Jersey as a whole population and stratified by high- and low-volume centers.
Total population (n = 2,560)
Mitral valve repair (N = 198)
Mitral valve replacement (n = 2,362)
High volume (n = 54)
Low volume (n = 144)
value
High volume (n = 1,126)
Low volume (n = 1,236)
value
Admission type n (%)
0.64
<0.001
Urgent/emergent
1,380 (53.9)
23 (42.6)
56 (38.9)
707 (62.8)
594 (48.1)
Elective
1,176 (45.9)
31 (57.4)
88 (61.1)
418 (37.1)
639 (51.7)
MV pathology n (%)
MV regurgitation
1,204 (47.0)
39 (72.2)
107 (74.3)
0.77
470 (41.7)
570 (46.1)
0.03
MV stenosis
79 (3.1)
0
0
—
41 (3.6)
37 (3.0)
0.38
Chronic rheumatic MV disease
223 (8.7)
0
0.38
84 (7.5)
134 (10.8)
0.005
MV prolapse
143 (5.6)
17 (11.8)
0.89
57 (5.1)
63 (5.1)
0.97
MV: mitral valve. total number ≤10, and exact values are removed for patient privacy.
