Table 3.

Phrenic nerve latency (ms)

	Pre-operative		Post-operative
	Left	Right	Left	Right
CABG with CPB (n = 35)	7.53 ± 0.87	7.97 ± 0.91	7.68 ± 0.11	7.87 ± 1.24
Valv replacement with CPB (n = 9)	7.92 ± 0.98	7.75 ± 1.01	7.95 ± 1.01	8.4 ± 1.14
CABG with beating heart (n = 12)	7.51 ± 1.09	6.78 ± 1.07	7.63 ± 0.58	7.48 ± 0.45
Peripheral artery surgery (n = 17)	7.04 ± 0.91	7.06 ± 0.81	7.41 ± 0.86	7.1 ± 0.85

CABG, Coronary artery bypass grafting; CPB, Cardiopulmonary bypass No statistically significant differences were observed between groups and in the same groups, pre and postoperatively except five patients with phrenic injury (p > 0.05).