並列タイトル等開腹婦人科手術での術後鎮痛における硬膜外間欠投与の有効性
タイトル（掲載誌）BioMed Research International
一般注記Background. It is well known that the programmed intermittent epidural bolus (PIEB) technique effectively provides epidural anesthesia in labor. This randomized double-blind trial compared the postoperative analgesic efficacy of PIEB with that of continuous epidural infusion (CEI) in patients undergoing gynecological surgery under combined general-epidural anesthesia. Methods. Patients undergoing open gynecological surgery under combined general-epidural anesthesia were randomized at a 1 : 1 ratio to receive PIEB or CEI. In the PIEB group, the pump delivered 4mL ropivacaine 0.2% plus fentanyl 2 ?g/mL every hour. In the CEI group, the pump delivered the same solution at a rate of 4 mL/h. In both groups, additional 4mL boluses of ropivacaine 0.2% plus fentanyl 2 ?g/mL were provided, when necessary, by patient-controlled epidural analgesia after surgery. The primary outcome was the total ropivacaine dose 40 hours after surgery. The secondary outcomes were the number of PCEA boluses and postoperative pain (evaluated on an 11-point numerical rating scale) 3, 24, and 48 hours after surgery. Results. In total, 57 patients were randomized (? = 28 and 29 in the PIEB and CEI groups, resp.). The two groups differ significantly in terms of the total ropivacaine dose 40 hours after surgery (mean (standard deviation): 155.38 (4.55) versus 159.73 (7.87) mL, ? = 0.016). Compared to the CEI group, the PIEB group had significantly lower numerical rating scale scores 3 hours (median [lower–upper quartiles]: 0 [0–0.5] versus 3 [0–5.5], ? = 0.002), 24 hours (1 [0–2] versus 3 [1–4], ? = 0.003), and 48 hours (1 [0–2] versus 2 [2–3.5], ? = 0.002) after surgery. Conclusion. PIEB was better than CEI in terms of providing postoperative analgesia after open gynecological surgery under combined general-epidural anesthesia.
DOIinfo:doi/10.1155/2018/6297247
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受理日（W3CDTF）2019-07-05T01:13:02+09:00
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