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Table 2 Intraoperative data

From: Mid-term results of mitral valve repair using flexible bands versus complete rings in patients with degenerative mitral valve disease: a prospective, randomized study

  SR Group,
n = 85
FB Group,
n = 86
P value
Approach:
 Conventional, n (%) 60 (70.6) 59 (65.1) 0.778
 Minimally invasive, n (%) 25 (29.4) 27 (31.4) 0.778
CPB time, min 140 (110;179.5) 160 (122;206) 0.091
Cross clamp time, min:
 Conventional 92 (73;117) 101 (79;125) 0.230
 Minimally invasive 116 (101;129) 123 (106;156) 0.171
Mitral valve analyze and intervention in certain patients
 А1 prolapse, n (%) 9 (10.6) 11 (12.8) 0.654
 А2 prolapse, n (%) 23 (27.1) 33 (38.4) 0.115
 А3 prolapse, n (%) 13 (15.3) 19 (22.1) 0.254
 P1 prolapse, n (%) 6 (7.1) 12 (13.9) 0.142
 P2 prolapse, n (%) 59 (69.4) 68 (79.1) 0.119
 P3 prolapse, n (%) 17 (20.0) 27 (31.4) 0.088
 AMVL prolapse, n (%) 31 (36.5) 40 (46.5) 0.183
 PMVL prolapse, n (%) 73 (85.9) 74 (86.1) 0.975
 DMVL prolapse, n (%) 19 (22.4) 28 (32.5) 0.135
 Chordae rupture, n (%) 64 (75.3) 53 (61.6) 0.055
 AMVL resection, n (%) 1 (1.2) 4 (4.7) 0.178
 PMVL resection, n (%) 37 (43.5) 49 (56.9) 0.079
 AMVL neochordae, n (%) 22 (25.9) 29 (33.7) 0.263
 PMVL neochordae, n (%) 30 (35.3) 27 (31.4) 0.589
 Ring size, mm 32 (30;32) 34 (30;34) 0.456
Concomitant procedure
 Maze IV procedure, n (%) 18 (21.2) 14 (16.3) 0.412
 CABG, n (%) 10 (11.8) 4 (4.7) 0.090
 TV repair, n (%) 32 (37.6) 24 (27.9) 0.175
 SAM-syndrome, n (%) 0 1 (1.2) 0.319
Intraoperative TEE
 Depth of coaptation, mm 9 (7;11) 6 (5;8) 0.006
 Peak MV gradient, mm Hg 8.0 (6.7;10.9) 6.4 (4;9) <0.001
 Mean MV gradient, mm Hg 3 (2.4;4) 2 (2;3.9) <0.001
  1. SR semirigid ring, FB flexile band, AMVL anterior mitral valve leaflet, PMVL posterior mitral valve leaflet, DMVL prolapse dual (anterior and posterior) mitral valve leaflet prolapse, CABG coronary artery bypass grafting, TV tricuspid valve, CPB cardiopulmonary bypass, TEE transesophageal echocardiography