Anaesthesia and intensive care
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Anaesth Intensive Care · Feb 1990
Randomized Controlled Trial Comparative Study Clinical TrialA double-blind comparison of epidural bupivacaine and bupivacaine-fentanyl for caesarean section.
The effect of adding fentanyl 100 mcg to bupivacaine 0.5% plain to establish epidural anaesthesia for elective caesarean section was investigated in a randomised, double-blind study of sixty healthy women. The quality of intraoperative analgesia as assessed by both patients and anaesthetists was significantly improved with fentanyl. The onset and duration of sensory anaesthesia, degree and duration of motor block, and other characteristics of epidural anaesthesia were unaltered. ⋯ The pharmacokinetics of epidural fentanyl administration were investigated by plasma fentanyl assays from maternal and cord blood taken at delivery. Epidural bupivacaine-fentanyl combination is a valuable therapeutic approach to the conduct of epidural anaesthesia for caesarean section in healthy women and foetuses. Further neonatal evaluation of the premature or compromised foetus is suggested before the universal application of this technique.
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Anaesth Intensive Care · Feb 1990
Randomized Controlled Trial Comparative Study Clinical TrialThe perioperative effects of oral premedication in children.
The pre- and postoperative effects of oral diazepam (0.5 mg/kg), trimeprazine (4 mg/kg), pentobarbitone (3 mg/kg) and a placebo were compared in a randomized double-blind clinical trial in 149 children, aged one to ten years, undergoing adenotonsillectomy. The anaesthetic was standardised and each patient received intraoperative intramuscular papaveretum (0.3 mg/kg). ⋯ There were no differences in waking times between the diazepam, pentobarbitone and placebo groups, but the trimeprazine group's waking times were significantly prolonged (P less than 0.001). However, the trimeprazine group exhibited significantly less distress in the recovery unit (P = 0.02) and had half the incidence of vomiting (P less than 0.001) than did the other premedication groups.
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Anaesth Intensive Care · Feb 1990
Randomized Controlled Trial Clinical TrialGastric aspiration at the end of anaesthesia does not decrease postoperative nausea and vomiting.
Two hundred and one women undergoing elective abdominal hysterectomy were anaesthetised with isoflurane in nitrous oxide and oxygen. At the end of anaesthesia the stomach was aspirated in half of the patients, selected in random order. In the other half no aspiration was performed. ⋯ Emesis was similar after the operation regardless of aspiration of the stomach (overall emesis, 79% and 70% for those whose stomach had and had not been aspirated, respectively). The incidence at all times during the 24 hours was similar in both groups. The results suggest that gastric aspiration at the end of anaesthesia has no major effect on the incidence or severity of postoperative emesis in patients undergoing abdominal hysterectomy.
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Anaesth Intensive Care · Feb 1990
Randomized Controlled Trial Clinical TrialDouble-blind study of the reversal of midazolam-induced sedation in the intensive care unit with flumazenil (Ro 15-1788): effect on weaning from ventilation.
Midazolam (0.1-0.2 mg/kg/hr) and morphine (2 mg/hr) were given by carefully regulated continuous intravenous infusions to thirty patients who required sedation, analgesia and ventilation for between twelve and twenty-four hours in the Intensive Care Unit. The midazolam and morphine infusions were stopped at the end of the period of sedation required and the efficacy of placebo of flumazenil in reversing the sedative effects of midazolam was compared in this double-blind randomised parallel group study. Patients receiving flumazenil were less sedated (P less than 0.05), able to obey commands (P less than 0.05), weaned from ventilation (P less than 0.05) and extubated (P less than 0.05) significantly earlier than those receiving placebo.
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Anaesth Intensive Care · Feb 1990
Randomized Controlled Trial Clinical TrialThe effect, on injection pain, of adding lignocaine to propofol.