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Table 2 The comparison of PaO 2 , PaCO 2 , serum CK-MB and troponin values preoperatively and postoperatively at 6 and 24 hour between groups

From: A comparison of thoracic or lumbar patient-controlled epidural analgesia methods after thoracic surgery

  Preoperative *P Postoperative 6th hour *P Postoperative 24th hour *P
PaO2 (mmHg)       
TEA 126.54 ± 33.75 0.252 146.88 ± 51.2 0.185 135.37 ± 56.65 0.149
LEA 135.86 ± 51.89 134.67 ± 49.12 151.21 ± 62.17
PaCO2 (mmHg)       
TEA 41.86 ± 8.28 0.152 41.32 ± 9.39 0.131 42.11 ± 7.43 0.059
LEA 39.46 ± 9.78 43.84 ± 7.7 44.89 ± 8.47
CK-MB (U/L)       
TEA 18.5 (13-55) 0.623 22.5 (12-46) 0.243 17.5 (16-35) 0.061
LEA 20 (12-25)   16 (11-26)   19.5 (23-35)
Troponin (ng/mL)       
TEA 0.02 (0.01-0.6) 0.758 0.3 (0.08-0.75) 0.326 0.2 (0.05-0.60) 0.503
LEA 0.04 (0.01-0.25)   0.25 (0.09-0.55)   0.15 (0.06-0.75)
  1. TEA, thoracic epidural group; LEA, lumbar epidural group; PaO 2 , arterial partial pressure of oxygen; PaCO 2 , arterial partial pressure of carbon dioxide; *P < 0.05, values are mean ± standard deviation or median (minimum-maximum).