AANA journal
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Randomized Controlled Trial Comparative Study
Effects of using simulation versus CD-ROM in the performance of ultrasound-guided regional anesthesia.
The purpose of this study was to determine which method of teaching, CD-ROM, simulation, or a combination of both, was more effective in increasing the performance of ultrasound-guided regional anesthesia. No studies have investigated these methods. The framework for this study was critical thinking. ⋯ The means and standard deviations for pretest and posttest results, respectively, were: CD-ROM, 33 +/- 7%, 41 +/- 9%; simulation, 35 +/- 10%, 49 +/- 13%; and combination, 36 +/- 8%, 64 +/- 17%. The baseline for each group was 0. Use of a combination of CD-ROM and simulation should be considered in teaching ultrasound-guided regional anesthesia techniques.
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Randomized Controlled Trial Controlled Clinical Trial
Effect of intraoperative intravenous lidocaine on postoperative pain and return of bowel function after laparoscopic abdominal gynecologic procedures.
Abdominal surgery has a high incidence of postoperative pain and dysfunctional gastrointestinal motility. This study investigated the effect of a continuous intraoperative infusion of lidocaine on patients undergoing laparoscopic gynecologic surgery. In this double-blind, placebo-controlled investigation, 50 subjects were randomly assigned to control and experimental groups. ⋯ Data were analyzed using descriptive and inferential statistics. A P value less than .05 was considered significant. These study results are consistent with previous research suggesting that intraoperative lidocaine infusion may improve postoperative pain levels and may shorten the time to return of bowel function.
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With more surgical procedures than ever before being performed in office settings, office-based anesthesia is a rapidly growing area of anesthesia practice. Although there are many advantages to office-based practice, limitations inherent to this setting, if not recognized and addressed, may threaten patient safety. ⋯ Anesthesia for cosmetic surgery procedures in the office setting is frequently performed under monitored anesthesia care (MAC) with its own unique safety considerations. Anesthetists practicing in office-based cosmetic surgery practices must understand the special characteristics of this setting, the MAC-based approach often used, the anesthesia and safety considerations for the cosmetic surgical procedures performed, and the importance of prophylaxis for venous thromboembolism.
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Anesthesia is generally accepted as safe in most adult populations; however, in pediatric patients questions exist regarding the potential for long-term detrimental effects. Various anesthetic agents are associated with neuronal degeneration when administered to neonatal animals. The mechanism of damage is thought to be via accelerated apoptosis, a normally beneficial process in the maintenance of homeostasis. ⋯ Clear evidence exists that neuronal apoptosis occurs when anesthetics are administered to neonatal rodents and primates, and behavioral and cognitive testing from some authors indicate long-term effects persist well into an animal's adulthood. Preliminary human trials reveal a link between anesthesia and subsequent developmental delays. This review of the literature clarifies the need for further research in humans.
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Perioperatively, insulin to treat hyperglycemia is administered judiciously to minimize the risk of hypoglycemia. In patients with diabetes in whom preoperative blood glucose levels are on the low end of normal, hypoglycemia risk may be underestimated. This retrospective study enrolled subjects with presenting preoperative blood glucose values in these ranges: 70 to 89 mg/dL (low normal group) and above 249 mg/dL (hyperglycemia-treated group). ⋯ Accounting for differences between groups, the incidence of perioperative blood glucose levels below 70 mg/dL was greater in the low normal group than the hyperglycemia-treated group (17.2% vs 3.6%, P < .001). Of subjects whose blood glucose levels fell below 70 mg/dL, blood glucose levels dropped below 50 mg/dL in 40% of hyperglycemia-treated subjects and 4% of low normal subjects. Perioperative hypoglycemia was likelier to develop in patients with diabetes who presented preoperatively with low normal blood glucose values than in patients treated with insulin for presenting hyperglycemia.