Anaesthesia
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The postero-anterior lumbar spine X rays of 163 patients undergoing investigation for back pain were reviewed and the spinal level marking the intersection of a line joining the iliac crests was determined. This point coincided with the L4 spinous process or the L4-5 interspace in 78.6% of patients but was as high as the L3-4 interspace in 3.7% of cases. Reliance on this landmark might lead to more cranial placement of epidural or spinal needles than was intended and this may increase the risk of spinal cord damage.
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Twenty children undergoing general surgery and 20 children undergoing otorhinolaryngological surgery were simultaneously assessed on two occasions by a doctor and a parent using three pain scoring systems. The pain scoring systems used were the Objective Pain Score, a four point numerical score and a 100 mm visual analogue scale. ⋯ At 1 h after leaving the recovery area the correlation coefficients were 0.81, 0.80 and 0.73 respectively (p < 0.01). These results suggest that parental scoring of pain in children will be useful in future audit and research of analgesic regimens, particularly in day-case surgery.
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Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial
Total intravenous anaesthesia with propofol or inhalational anaesthesia with isoflurane for major abdominal surgery. Recovery characteristics and postoperative oxygenation--an international multicentre study.
Two hundred and ten adult patients undergoing open cholecystectomy, vagotomy or gastrectomy were included in a randomised multicentre study to compare postoperative nausea and vomiting, oxygen saturations for the first three postoperative nights, time to return of gastrointestinal function, mobilisation, and discharge from the hospital following induction and maintenance of anaesthesia with propofol and alfentanil or with thiopentone, nitrous oxide, isoflurane and alfentanil. Recovery from anaesthesia was significantly faster in the propofol group (mean (SD) times to eye opening and giving correct date of birth of 14.0 (SD 13.8) and 25.5 (SD 29.5) minutes, and 18.5 (SD 14.8) and 35.5 (SD 37.2) minutes in the propofol and isoflurane groups respectively). ⋯ There were no significant differences between the groups in any other recovery characteristics. The incidence of hypoxaemia (arterial oxygen saturation less than 93%) was close to 70% in both groups for the first three postoperative nights, indicating the need for oxygen therapy after major abdominal surgery.
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Randomized Controlled Trial Comparative Study Clinical Trial
A comparison of opioid solutions for patient-controlled epidural analgesia.
Sixty patients took part in a randomised, double-blind study to compare the analgesic and side effects of three opioid-containing solutions for patient-controlled epidural analgesia following abdominal surgery. Patients in group 1 received a solution containing bupivacaine 0.125% with fentanyl 10 micrograms.ml-1, group 2 bupivacaine 0.125% with diamorphine 125 micrograms.ml-1, group 3 pethidine 2.5 mg.ml-1. ⋯ Motor block was significantly higher in group 2 (p < 0.004) and pruritus occurred significantly less in group 3 (p < 0.05). We conclude that these three solutions produce equivalent analgesia but that pethidine 2.5 mg.ml-1 may be associated with fewer side effects.