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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Ann Thorac Surg. 2012 Feb 2;93(3):789–795. doi: 10.1016/j.athoracsur.2011.12.028

Table 2.

Perioperative Details

Variablesa CMIV
(n = 101)
CMIV + MV
(n = 99)
p Value
Operative
 Aortic cross-clamp time, min 40 ± 13 92 ± 26 <0.001
 Cardiopulmonary bypass, min 135 ± 29 166 ± 34 <0.001
 Right thoracotomy approach 19 (19) 10 (10) 0.08
 Box lesion set 79 (78) 81 (82) 0.6
Postoperative
 Operative deaths (<30 days) 1 (1) 4 (4) 0.21
 Stroke 1 (1) 1 (1) 1.0
 Reoperation for bleeding 0 (0) 5 (5) 0.03
 Need for IABP 1 (1) 5 (4) 0.17
 Renal failure requiring dialysis 0 (0) 5 (5) 0.03
 Pneumonia 6 (6) 11 (11) 0.21
 Mediastinitis 1 (1) 0 1.0
 Length of stay, days 7 (6–10) 10 (7–13) 0.02
 Early atrial tachyarrhythmias 41 (41) 57 (57) 0.03
 Permanent PM (<90 days) 7 (7) 10 (11) 0.45
a

Continuous data are presented as mean ± standard deviation or median (range), and categoric data are presented as number (%).

CMIV = Cox-Maze IV; IABP = intraaortic balloon pump; MV = mitral valve; PM = pacemaker.