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Table 2 Phrenic nerve amplitude (mV)

From: Electrophysiological evaluation of phrenic nerve injury during cardiac surgery – a prospective, controlled, clinical study

  Pre-operative post-operative
  Left Right Left Right
CABG with CPB (n = 35) 0.33 ± 0.25 0.34 ± 0.18 0.28 ± 0.17 0.35 ± 0.16
Valv replacement with CPB (n = 9) 0.27 ± 0.11 0.42 ± 0.15 0.26 ± 0.09 0.26 ± 0.11
CABG with beating heart (n = 12) 0.35 ± 0.29 0.38 ± 0.22 0.25 ± 0.15 0.33 ± 0.16
Peripheral artery surgery (n = 17) 0.59 ± 0.56 0.43 ± 0.34 0.47 ± 0.46 0.37 ± 0.31
  1. 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).