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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).
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