Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Multicenter Study Clinical Trial
The Canadian four-centre study of anaesthetic outcomes: III. Are anaesthetic complications predictable in day surgical practice?
To understand better the factors important to the safety of anaesthesia provided for day surgical procedures, we analyzed the intraoperative and immediate postoperative course of patients at four Canadian teaching hospitals' day treatment centres. After excluding those who received only monitored anaesthesia care, there were 6,914 adult (non-obstetrical) patients seen over a twelve-month period in 1988-89. The rate of adverse outcome consequent to their care was identified by a comprehensive surveillance system which included review of anaesthetic records (four hospitals) and follow-up telephone calls (two hospitals). ⋯ Patients judged obese, or inadequately fasted, were found to experience a greater rate of recovery problems as well as discomfort. While the low response rate (36%) to the telephone interviews created a sampling bias, the high rate of patient dissatisfaction among those reached is disconcerting. We conclude that day surgical patients with preoperative medical conditions, even when optimally managed, are at higher risk for adverse events in the perioperative period.
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Numerous postoperative analgesic therapies are continuing to develop as interest increases in the control of acute pain, particularly within the specialty of anaesthesia. Further progress will be made in the near future in relation to preemptive analgesia and reduction of postoperative pain by controlling spinal cord plasticity.(41,42) The concept of multimodal or balanced analgesia(43) in which the combined use of specific agents blocking specific segments of the pain pathway is another area which may provide improvements in postoperative analgesia.
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Randomized Controlled Trial Comparative Study Clinical Trial
Adequacy of caudal analgesia in children after penoscrotal and inguinal surgery using 0.5 or 1.0 ml.kg-1 bupivacaine 0.125%.
To determine the optimal volume of bupivacaine 0.125% for postoperative caudal analgesia, we compared the effectiveness of 0.5 ml.kg-1 and 1 ml.kg-1 of bupivacaine 0.125% with 1:200,000 epinephrine in 80 children undergoing penoscrotal and inguinal surgery. The adequacy of caudal analgesia and supplemental analgesic requirements did not differ between the two groups at any time during the first 12 hr after surgery. We conclude that 0.5 ml.kg-1 of bupivacaine 0.125% with 1:200,000 epinephrine is as effective as 1 ml.kg-1 of the same solution and recommend its use for penoscrotal surgery. The evidence for effectiveness of 0.5 ml.kg-1 of bupivacaine 0.125% for inguinal surgery, however, is inconclusive because of an insufficient number of patients studied.
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There have been many recent advances in the understanding and therapy of respiratory diseases. This review has attempted to cover some of the relevant new information about those disorders most likely to be encountered by anaesthetists. RéSUMé: Il y a de nombreux progrès récents dans la compréhension et la thérapie des maladies respiratoires. Cette revue a tenté de revoir l'information nouvelle et pertinente concernant les maladies les plus susceptibles d'être rencontrées par les anesthésistes.