Research Article
Low-Dose Ketamine Infusion for Perioperative Pain Management in Patients Undergoing Laparoscopic Gastric Bypass: A Prospective Randomized Controlled Trial
Table 3
Data on opioid consumption in oral morphine equivalents.
| | Opioid analysis ketamine versus standard therapy | | | Ketamine | Standard therapy | Total | P value | | (N = 17) | (N = 18) | (N = 35) | |
| | PCA | | | | 0.04581 | | N | 17 | 18 | 35 | | | Mean (SD) | 90.6 (76.5) | 137.6 (75.2) | 114.8 (78.4) | | | Range | (0.0–248.0) | (40.8–315.6) | (0.0–315.6) | |
| | OR | | | | 0.10951 | | N | 17 | 18 | 35 | | | Mean (SD) | 57.8 (22.8) | 72.5 (23.9) | 65.4 (24.2) | | | Range | (30.0–90.0) | (30.0–135.0) | (30.0–135.0) | |
| | Post | | | | 0.33681 | | N | 17 | 18 | 35 | | | Mean (SD) | 31.4 (25.2) | 38.6 (22.2) | 35.1 (23.6) | | | Range | (0.0–89.0) | (7.5–75.0) | (0.0–89.0) | |
| | Total | | | | 0.02821 | | N | 17 | 18 | 35 | | | Mean (SD) | 179.9 (113.1) | 248.7 (88.8) | 215.3 (105.7) | | | Range | (51.1–427.0) | (139.5–450.6) | (51.1–450.6) | |
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1Equal variance t-test. PCA: patient-controlled analgesia pump; OR: operating room; and Post: PO pain meds given in the postoperative period.
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