Dalrymple D G, Parbrock G D
Br J Anaesth. 1976 Jun;48(6):593-7. doi: 10.1093/bja/48.6.593.
In 40 patients undergoing surgery for duodenal ulcer, personality was assessed by a PEN Inventory. After operation, the respiratory restoration factor (RRF) was used to indicate the pain relief from nitrous oxide (25%) and i.v. methadone (three doses of 2 mg). There was no correlation between the psychological factors and RRF. Twenty-five per cent nitrous oxide appeared to be equivalent to i.v. methadone 4 mg in terms of RRF. The degree of hypoxia after surgery correlated with vital capacity impairment and the improvement of oxygen tension after analgesia correlated with RRF after methadone 6 mg.
在40例接受十二指肠溃疡手术的患者中，通过艾森克个性问卷（PEN Inventory）评估其个性。术后，使用呼吸恢复因子（RRF）来表明笑气（25%）和静脉注射美沙酮（三剂，每剂2毫克）带来的疼痛缓解情况。心理因素与RRF之间无相关性。就RRF而言，25%的笑气似乎等同于静脉注射4毫克美沙酮。术后缺氧程度与肺活量损害相关，镇痛后氧分压的改善与6毫克美沙酮后的RRF相关。
