Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Jan 2003
Randomized Controlled Trial Clinical TrialOral clonidine premedication does not reduce postoperative vomiting in children undergoing strabismus surgery.
We evaluated the effect of oral clonidine on postoperative vomiting (POV) in children undergoing strabismus surgery. ⋯ Oral premedication with clonidine 4 micro g kg-1 did not reduce the rate of POV in the children undergoing strabismus surgery.
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Acta Anaesthesiol Scand · Jan 2003
Comparative StudyComparison of forced-air warming systems with lower body blankets using a copper manikin of the human body.
Forced-air warming has gained high acceptance as a measure for the prevention of intraoperative hypothermia. However, data on heat transfer with lower body blankets are not yet available. This study was conducted to determine the heat transfer efficacy of six complete lower body warming systems. ⋯ No relevant differences in heat transfer of lower body blankets were found between the different forced-air warming systems tested. Heat transfer was lower than heat transfer by upper body blankets tested in a previous study. However, forced-air warming systems with lower body blankets are still more effective than forced-air warming systems with upper body blankets in the prevention of perioperative hypothermia, because they cover a larger area of the body surface.
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Acta Anaesthesiol Scand · Jan 2003
Randomized Controlled Trial Clinical TrialClinical trial of esmolol-induced controlled hypotension with or without acute normovolemic hemodilution in spinal surgery.
Drug-induced controlled hypotension (CH) combined with acute normovolemic hemodilution (ANH) is being widely used for blood conservation in surgical patients. The purpose of this study was to investigate the efficacy and safety of esmolol-induced CH combined with ANH (hematocrit down to 28%). ⋯ Our data suggest that ANH of moderate degree can be combined with esmolol-induced CH to improve blood conservation in surgical patients.
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Acta Anaesthesiol Scand · Jan 2003
Clinical TrialDecrease in the incidence of post-dural puncture headache: maintaining CSF volume.
The incidence of epidural needle-induced post-dural puncture headache (PDPH) in parturients following dural puncture with a large bore (18-gauge) needle has been reported to range 76-85%. We describe seven cases in which the performance of epidural anesthesia in parturients was complicated by an unintentional dural puncture with an 18-gauge epidural needle. In all seven cases, the unintentional dural puncture was followed by (i) injection of the CSF in the glass syringe back into the subarachnoid space through the epidural needle, (ii) insertion of a epidural catheter into the subarachnoid space (now referred to as an intrathecal catheter), (iii) injection of a small amount of preservative free saline (3-5 ml) into the subarachnoid space through the intrathecal catheter, (iv) administration of bolus and then continuous intrathecal labor analgesia through the intrathecal catheter and then (v) leaving the intrathecal catheter in-situ for a total of 12-20 h. PDPH occurred in only one of these cases (14%).