Journal of anesthesia
-
Journal of anesthesia · Apr 2010
Randomized Controlled TrialCaudal blockade shortens the time to walking exercise in elderly patients following low back surgery.
We conducted a randomized, double-blinded study to test our hypothesis that caudal blockade as preemptive analgesia for low back surgery might accelerate time to walking exercise following surgery and reduce postoperative analgesics, thereby attaining faster recovery of cognitive function. ⋯ Caudal blockade as preemptive analgesia shortened the time to start walking exercise after surgery and accelerated recovery of postoperative cognitive function.
-
Journal of anesthesia · Apr 2010
Randomized Controlled TrialEffect of remifentanil on cardiovascular and bispectral index responses following the induction of anesthesia with midazolam and subsequent tracheal intubation.
We examined the hypothesis that remifentanil decreases the bispectral index (BIS) as well as blunts cardiovascular responses to tracheal intubation during anesthesia with midazolam. ⋯ In our patient cohort, remifentanil 0.5 microg kg(-1) min(-1) effectively decreased the BIS after the induction of general anesthesia with midazolam 0.2 mg/kg and suppressed the increase of MAP and HR in response to subsequent laryngoscopy and tracheal intubation.
-
Journal of anesthesia · Apr 2010
Randomized Controlled Trial Comparative StudyComparison between ketamine and fentanyl-droperidol for rectal premedication in children: a randomized placebo controlled trial.
A common concern of anesthesiologists is the management of children involved in stressful scenarios, and premedication is considered, in most situations, as useful to reduce the stress responses. This randomized placebo-controlled study was designed to evaluate two premedicants, ketamine versus a combination of fentanyl-droperidol, rectally administered, in pediatric surgical outpatients. ⋯ In this study, premedication with rectal ketamine showed significantly better overall results in the preoperative period than premedication with either fentanyl-droperidol or placebo.
-
Journal of anesthesia · Apr 2010
EC(50) of remifentanil to prevent withdrawal movement associated with injection of rocuronium.
Various strategies have been studied to reduce the discomfort of rocuronium injection. This study was designed to determine the effect-site target concentration (Ce) of remifentanil at which there was a 50% probability of preventing movement from pain in response to the injection of rocuronium (EC(50)). ⋯ The EC(50) of remifentanil to blunt the withdrawal responses to rocuronium injection was 1.37-1.5 ng/ml during 3 microg/ml propofol TCI anesthesia.
-
Journal of anesthesia · Apr 2010
Comparative StudyTracheal fluid leakage in benchtop trials: comparison of static versus dynamic ventilation model with and without lubrication.
Longitudinal folds in tracheal tube (TT) cuffs cause leakage of pooled secretions past the tube cuff, and the most common in vitro method to test the efficacy of a new tube is a benchtop model using an artificial rigid trachea. This study compared the potential of a static and dynamic ventilation benchtop model and cuff lubrication in testing the tracheal sealing properties of a given TT cuff. ⋯ Gel lubrication, PEEP alone, and PPV + PEEP in the benchtop model had a much stronger protective effect than PPV alone on fluid leakage. Studies testing the fluid sealing efficiency of tube cuffs might be more conclusive in a static benchtop model without lubrication than in a dynamic model.