Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Jul 2001
Meta AnalysisThe influence of a dominating centre on a quantitative systematic review of granisetron for preventing postoperative nausea and vomiting.
We performed a meta-analysis on granisetron in the prevention of postoperative nausea and vomiting (PONV) and further investigated whether total results and the dose-response characteristics may be significantly affected by a single centre. ⋯ Overall results and dose-response characteristics of meta-analyses may be significantly altered by one dominating centre. Further, if data of a dominating centre do not appear to be valid for other centres, it may seem advisable to either exclude them from the analysis or to perform sub-group analyses so that results without the data from the dominating centre are available.
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Acta Anaesthesiol Scand · Jul 2001
Comparative StudyComparison of two video-assisted techniques for the difficult intubation.
Two recently developed video-optical intubation devices, the video-optical intubation stylet (VOIS) and the angled video intubation laryngoscope (AVIL) were compared for intubation times and success rate in a simulated difficult tracheal intubation setting. ⋯ In conclusion, both video-assisted intubation devices, the video-optical intubation stylet and the angled video intubation laryngoscope, can be considered to be simple and effective tools which facilitate tracheal intubation and which require only brief instruction and training.
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Acta Anaesthesiol Scand · Jul 2001
Randomized Controlled Trial Clinical TrialCaudal bupivacaine-tramadol combination for postoperative analgesia in pediatric herniorrhaphy.
Administration of bupivacaine caudally has been used for postoperative analgesia after urogenital, rectal and lower abdominal surgery in children. Caudal opioids may offer analgesic advantages over bupivacaine alone but have been associated with side effects such as respiratory depression. Tramadol is an analgesic assumed to lack a respiratory depressant effect and has been shown to provide effective, long-lasting analgesia after epidural administration in adults and children. The aim of this study was to determine whether the addition of tramadol to bupivacaine caudally prolongs the duration of analgesia compared with bupivacaine alone, with respect to side effects, and whether caudal tramadol alone provides satisfactory analgesia. ⋯ Caudal administration of bupivacaine with the addition of tramadol resulted in superior analgesia with a longer period without demand for additional analgesics compared with caudal bupivacaine and tramadol alone without an increase of side effects.
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Acta Anaesthesiol Scand · Jul 2001
Randomized Controlled Trial Clinical TrialUltrasound control for presumed difficult epidural puncture.
The efficacy of epidural anaesthesia depends on the accurate identification of the epidural space (ES). Abnormal anatomical conditions may make the procedure difficult or impossible. The aim of this study was to investigate whether pre-puncture ultrasound examination of the spinal anatomy might be beneficial in expected cases of difficult epidural anaesthesia. ⋯ With ultrasound measurement of the ES depth, the quality of epidural anaesthesia was enhanced.
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Acta Anaesthesiol Scand · Jul 2001
Randomized Controlled Trial Clinical TrialPostoperative analgesia by combined continuous infusion and patient-controlled epidural analgesia (PCEA) following hip replacement: ropivacaine versus bupivacaine.
Ropivacaine is a new local anaesthetic, which compared to bupivacaine is less toxic and shows greater sensory and motor block dissociation. We hypothesised that treatment of postoperative pain with a combined regimen of continuous epidural infusion and Patient-Controlled Epidural Analgesia (PCEA) using ropivacaine could have given better results compared with those we had obtained using bupivacaine. ⋯ Despite similar analgesic effects, epidural infusion of ropivacaine combined with PCEA provides higher patient satisfaction than equal doses of bupivacaine due to lack of motor block.