Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Aug 1996
Randomized Controlled Trial Clinical TrialThe effects of warming intravenous fluids on intraoperative hypothermia and postoperative shivering during prolonged abdominal surgery.
The infusion of several liters of crystalloid solution at room temperature may significantly contribute to intraoperative hypothermia because warming fluid to core temperature requires body heat. The aim of this study was to evaluate the effect of delivering warmed intravenous (IV) fluid to the patient on preventing intraoperative hypothermia. ⋯ In conclusion, infusion of warmed fluids, combined with skin-surface warming, helps to prevent hypothermia and reduces the incidence of postoperative shivering.
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Acta Anaesthesiol Scand · Aug 1996
Randomized Controlled Trial Clinical TrialAnalgesic effect of intraarticular morphine. A controlled, randomised and double-blind study.
Opioids produce antinociceptive effect by acting on receptors on peripheral nerves. The clinical relevance of this effect is still debated. The aim of the study was to compare the analgesic effect of morphine intraarticularly with the intramuscular route of administration after knee surgery. ⋯ The clinical analgesic effect of 5 mg morphine given intraarticularly is equal to 5 mg morphine given intramuscularly. The occurrence of villous synovitis seems to be of no clinical importance concerning the local effect of morphine.
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Acta Anaesthesiol Scand · Aug 1996
Quantitative EEG analysis as a supplement to the clinical coma scale RLS85.
The aim of the study was to investigate the correlation between EEG indicators and clinical scores based on the RLS85 (Reaction Level Scale 85) in comatose patients. The results of a simple visual assessment of the EEG, using an arbitrary scale with typical EEG patterns, were compared with those obtained by quantitative electroencephalography (qEEG). ⋯ The amount of EEG slow activity is significantly correlated to the RLS85 score. This means that the EEG also provides information on the level and not only on the changes of the coma degree. Surprisingly, the indicators based on quantitative EEG, as used in commercially available instruments, did not give better results than the visual assessment. However, the results of the computerised analysis could be improved using multivariate statistical methods. The study also showed a way to improve communication between the neurophysiologist and clinician by presenting the EEG findings in terms similar to those used in the clinical scales. However, the clinician should be aware of the fact that the "EEG score" and the clinical score is not the same: the intention is to supplement rather than to simulate the clinical observation.
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Acta Anaesthesiol Scand · Aug 1996
Randomized Controlled Trial Comparative Study Clinical TrialPre-emptive effect of pre-incisional versus post-incisional infiltration of local anaesthesia on children undergoing hernioplasty.
Although promising in experimental studies of post-traumatic pain, the concept of pre-emptive analgesia is still controversial in a clinical setting. Thus, we wanted to compare the clinical efficacy of wound infiltration with local anaesthesia before surgery with wound infiltration after hernioplasty in children. ⋯ Perioperative infiltration with a local anaesthetic in children undergoing hernioplasty results in a smooth recovery with little need for opioids postoperatively. Apart from a lower anaesthetic requirement and a reduced postoperative pain level after 30 min in the pre-incisional bupivacaine group, there was no difference between infiltration before (pre-emptive) or after surgery.