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Table 4 Opioid consumption in the first postoperative 24 h (mean values ± SD)

From: Regional analgesia techniques for effective recovery from coronary artery bypass surgeries: a retrospective study involving the experience of a single center

  Regional anesthesia ( +) (n:179) Regional anesthesia (−) (n:41)
Tramadol (mg) 34.7 ± 31* 95.6 ± 44
Pethidine (µg) 20.6 ± 9.4+ 45.6 ± 28.2
  1. Tramadol 50 mg was administered if the NRS score was > 4. If the NRS score was above 4 despite the administration of tramadol, pethidine 50 µg was administered
  2. *p < 0.05 + p < 0.05