Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Apr 2010
Randomized Controlled Trial Comparative StudyProcedural pain of an ultrasound-guided brachial plexus block: a comparison of axillary and infraclavicular approaches.
Ultrasound (US)-guided infraclavicular (IC) and axillary (AX) blocks have similar effectiveness. Therefore, limiting procedural pain may help to choose a standard approach. The primary aims of this randomized study were to assess patient's pain during the block and to recognize its cause. ⋯ We did not find significant differences between the two approaches in procedural pain and patient's acceptance. The choice of approach may depend on the anaesthesiologist's experience and the patient's preferences.
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Acta Anaesthesiol Scand · Apr 2010
Randomized Controlled TrialPredictive ability of propofol effect-site concentrations during fast and slow infusion rates.
The performance of propofol effect-site pharmacokinetic models during target-controlled infusion (TCI) might be affected by propofol administration rate. This study compares the predictive ability of three effect-site pharmacokinetic models during fast and slow infusion rates, utilizing the cerebral state index (CSI) as a monitor of consciousness. ⋯ Speed of infusion, within the ranges allowed by TCI pumps, significantly affects the accuracy of Ce predictions. The CSI monitor was shown to be a useful tool to predict LOC in both rapid and slow infusion schemes.
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Acta Anaesthesiol Scand · Apr 2010
Randomized Controlled Trial Comparative StudyIs nerve stimulation needed during an ultrasound-guided lateral sagittal infraclavicular block?
The objective of the study was to evaluate the influence of ultrasound (US) guidance alone vs. neurostimulation (NS) and US (NSUS) guidance techniques on block performance time and block success rate for the lateral sagittal infraclavicular block (LSIB). ⋯ During LSIB performance US guidance alone produces block success rate identical to both US and NS guidance yet with a shorter block performance time.
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Acta Anaesthesiol Scand · Apr 2010
Randomized Controlled TrialInfusion of hypertonic saline/starch during cardiopulmonary bypass reduces fluid overload and may impact cardiac function.
Peri-operative fluid accumulation resulting in myocardial and pulmonary tissue edema is one possible mechanism behind post-operative cardiopulmonary dysfunction. This study aimed to confirm an improvement of cardiopulmonary function by reducing fluid loading during an open-heart surgery. ⋯ An intraoperative infusion of HSH during cardiac surgery contributes to reduced fluid loading and an improvement in the post-operative cardiac performance. No adverse effects of the HSH infusion were observed.
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Acta Anaesthesiol Scand · Apr 2010
Randomized Controlled Trial Comparative StudyFemoral nerve block with ropivacaine or bupivacaine in day case anterior crucial ligament reconstruction.
Our aim was to evaluate analgesia, motor block and pharmacokinetics of ropivacaine 0.2% and 0.75% in a femoral nerve block (FNB) in day case patients for anterior crucial ligament (ACL)-reconstruction compared with bupivacaine 0.25% and placebo. ⋯ FNB for ACL reconstruction with ropivacaine or bupivacaine provided better post-operative analgesia than placebo without reaching toxic plasma concentrations. Significant motor block was observed after 4 h in all groups including the lowest concentration of ropivacaine but occurred even with placebo.