Masui. The Japanese journal of anesthesiology
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Randomized Controlled Trial Comparative Study Clinical Trial
[Appropriate duration of postoperative pain relief by continuous epidural infusion in patients receiving hysterectomy or ovarian tumor resection: comparison of three methods].
We evaluated effects of continuous epidural infusion on postoperative pain, and frequency of its side effects. Patients who had undergone elective gynecological operations were randomly allocated into three groups by difference in duration of indwelling of epidural catheters: patients receiving epidural block only during operations (group M); patients receiving continuous epidural infusion for 2 postoperative days (group B 2); patients receiving continuous epidural infusion for 4 postoperative days (group B 4). In group M, morphine 3 mg and 1 or 2% lidocaine 5-7 ml were given before the start of operation, and epidural catheter was removed after the end of operations. ⋯ Frequencies of supplementary analgesics were 3.7, 0.6 and 0.4 times in group M, B 2, B 4, respectively. Times to initiation of bowel movement after operation were 39.8, 46.5 and 61.7 hrs in group M, B 2, and B 4, respectively, and most patients in group B 4 felt uncomfortable. These results suggest that continuous epidural analgesia for 2 postoperative days is appropriate, but the duration should be determined according to patient's conditions and complications.
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Randomized Controlled Trial Clinical Trial
[Effect of deliberate mild hypothermia on the incidence of surgical-wound infection and duration of hospitalization in neurosurgical patients].
We investigated the effect of mild hypothermia on the incidence of surgical-wound infection and duration of hospitalization, retrospectively. We randomly assigned 173 patients undergoing intracranial operation to mild hypothermic group (group H) of 122 patients or normothermic group (group N) of 51 patients. A water blanket and a convective device blanket were used for thermal control in the both groups. ⋯ There were no statistical differences of the incidence of surgical-wound infection and duration of hospitalization between the two groups. However, the duration to suture removal was significantly longer in group H than in group N (8.3 +/- 1.6 vs 7.8 +/- 0.8 days). Although the effects of deliberate mild hypothermia for neurosurgery on the incidence of surgical-wound infection and duration of hospitalization were little, it may affect the recovery process of such patients.