Table 3:

Intraoperative records after propensity score matching

VariableNo-MAD (n = 50)MAD (n = 50)P-value
Non-elective surgery1 (2.0%)00.999
Reintervention1 (2.0%)00.999
MIMVS33 (66.0%)21 (42.0%)0.027
CXC time, minutes100.00 [79.50, 120.50]98.00 [81.00, 119.00]0.741
CPB time, minutes124.50 [105.00, 141.25]122.00 [101.00, 160.00]0.704
Mitral valve repair50 (100%)50 (100%)1
Segment resection22 (44%)27 (54%)0.317
Chordal repair19 (38%)20 (40%)0.838
Other27 (54%)30 (60%)0.545
Mitral annular ring, mm32.00 [28.00, 34.00]36.00 [34.00, 36.00]0.003
Concomitant procedures///
 Aortic surgery5 (10%)1 (2%)0.204
 Tricuspid repair7 (14%)17 (34%)0.035
 CABG5 (10%)1 (2%)0.204
 LAA closure6 (12.0%)4 (8.0%)0.739
 AF surgery13 (26.0%)9 (18.0%)0.469
VariableNo-MAD (n = 50)MAD (n = 50)P-value
Non-elective surgery1 (2.0%)00.999
Reintervention1 (2.0%)00.999
MIMVS33 (66.0%)21 (42.0%)0.027
CXC time, minutes100.00 [79.50, 120.50]98.00 [81.00, 119.00]0.741
CPB time, minutes124.50 [105.00, 141.25]122.00 [101.00, 160.00]0.704
Mitral valve repair50 (100%)50 (100%)1
Segment resection22 (44%)27 (54%)0.317
Chordal repair19 (38%)20 (40%)0.838
Other27 (54%)30 (60%)0.545
Mitral annular ring, mm32.00 [28.00, 34.00]36.00 [34.00, 36.00]0.003
Concomitant procedures///
 Aortic surgery5 (10%)1 (2%)0.204
 Tricuspid repair7 (14%)17 (34%)0.035
 CABG5 (10%)1 (2%)0.204
 LAA closure6 (12.0%)4 (8.0%)0.739
 AF surgery13 (26.0%)9 (18.0%)0.469

Values are expressed as median [interquartile range] or frequency (percentages). AF: atrial fibrillation; CABG: coronary artery bypass grafting; CPB: cardiopulmonary bypass; CXC: cross-clamping; LAA: left atrial appendage; MAD: mitral annular disjunction; MIMVS: minimally-invasive mitral valve surgery.

Table 3:

Intraoperative records after propensity score matching

VariableNo-MAD (n = 50)MAD (n = 50)P-value
Non-elective surgery1 (2.0%)00.999
Reintervention1 (2.0%)00.999
MIMVS33 (66.0%)21 (42.0%)0.027
CXC time, minutes100.00 [79.50, 120.50]98.00 [81.00, 119.00]0.741
CPB time, minutes124.50 [105.00, 141.25]122.00 [101.00, 160.00]0.704
Mitral valve repair50 (100%)50 (100%)1
Segment resection22 (44%)27 (54%)0.317
Chordal repair19 (38%)20 (40%)0.838
Other27 (54%)30 (60%)0.545
Mitral annular ring, mm32.00 [28.00, 34.00]36.00 [34.00, 36.00]0.003
Concomitant procedures///
 Aortic surgery5 (10%)1 (2%)0.204
 Tricuspid repair7 (14%)17 (34%)0.035
 CABG5 (10%)1 (2%)0.204
 LAA closure6 (12.0%)4 (8.0%)0.739
 AF surgery13 (26.0%)9 (18.0%)0.469
VariableNo-MAD (n = 50)MAD (n = 50)P-value
Non-elective surgery1 (2.0%)00.999
Reintervention1 (2.0%)00.999
MIMVS33 (66.0%)21 (42.0%)0.027
CXC time, minutes100.00 [79.50, 120.50]98.00 [81.00, 119.00]0.741
CPB time, minutes124.50 [105.00, 141.25]122.00 [101.00, 160.00]0.704
Mitral valve repair50 (100%)50 (100%)1
Segment resection22 (44%)27 (54%)0.317
Chordal repair19 (38%)20 (40%)0.838
Other27 (54%)30 (60%)0.545
Mitral annular ring, mm32.00 [28.00, 34.00]36.00 [34.00, 36.00]0.003
Concomitant procedures///
 Aortic surgery5 (10%)1 (2%)0.204
 Tricuspid repair7 (14%)17 (34%)0.035
 CABG5 (10%)1 (2%)0.204
 LAA closure6 (12.0%)4 (8.0%)0.739
 AF surgery13 (26.0%)9 (18.0%)0.469

Values are expressed as median [interquartile range] or frequency (percentages). AF: atrial fibrillation; CABG: coronary artery bypass grafting; CPB: cardiopulmonary bypass; CXC: cross-clamping; LAA: left atrial appendage; MAD: mitral annular disjunction; MIMVS: minimally-invasive mitral valve surgery.

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