Table 3:

Operative time, operative blood loss and operative arrhythmia

	Intercostal N = 131	Subxiphoid N = 131	P-value
Operative time (min), mean (SD)
Incision	4.70 (0.72)	5.18 (1.39)	0.001a
Operation	51.34 (7.96)	51.38 (8.04)	0.963
Specimen extraction	4.64 (0.69)	4.39 (0.72)	0.005a
Closure	4.76 (0.53)	4.93 (0.70)	0.023a
Amount of blood loss (ml), median (IQR)	50 (20-50)	50 (30-50)	0.084
Intraoperative arrythmia, count (%)
Premature vent contraction	2 (1.5)	11 (8.4)	0.01a
Premature beats	1 (0.8)	7 (5.3)	0.03a
Atrial fibrillation	0 (0.0)	2 (1.5)	0.498

IQR: interquartile range; SD: standard deviation.

^aStatistically significant.