title: Personality assessment and postoperative analgesia. A study in male patients undergoing elective gastric surgery.
abstract: 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.
mesh_terms: D000293:Adolescent; D000328:Adult; D000770:Anesthesia, Endotracheal; D000771:Anesthesia, Intravenous; D004381:Duodenal Ulcer / Q000601:surgery; D006801:Humans; D008297:Male; D008691:Methadone; D008875:Middle Aged; D009609:Nitrous Oxide; D010100:Oxygen / Q000097:blood; D010149:Postoperative Pain / Q000188:drug therapy; D010555:Personality Inventory; D014797:Vital Capacity
chemical_list: D009609:Nitrous Oxide; D010100:Oxygen; D008691:Methadone