Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · May 1996
Randomized Controlled Trial Comparative Study Clinical TrialNo additional analgesic effect of intra-articular morphine or bupivacaine compared with placebo after elective knee arthroscopy.
Intra-articular pain prophylaxis is a controversial measure, adding costs although the benefits are still disputed. We wanted to evaluate the effects of intra-articular opioid or local anaesthesia or a combination of the two on postoperative analgesia and analgesic consumption after elective knee arthroscopy. ⋯ Intra-articular administration of morphine or bupivacaine is not indicated after elective knee-arthroscopy in patients with minor pre-operative pain and a small surgical trauma.
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Acta Anaesthesiol Scand · May 1996
Sodium nitroprusside after cardiac surgery: systemic and splanchnic blood flow and oxygen transport.
Vasoactive drugs may interfere with splanchnic blood flow and tissue oxygenation. Sodium nitroprusside (SNP) is widely used in the treatment of postoperative hypertension after cardiac surgery, but the effects of SNP and other vasodilators on splanchnic blood flow have not been well documented. ⋯ These results suggest that vasoregulation is well preserved during treatment of early postoperative hypertension with SNP, and that SNP has no adverse effects on splanchnic tissue oxygenation.
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Acta Anaesthesiol Scand · May 1996
Propofol anaesthesia in spontaneously breathing paediatric patients during magnetic resonance imaging.
The aim of this study was to evaluate the use of propofol to induce and maintain anaesthesia in spontaneously breathing paediatric patients (age 2 weeks-11 years) during Magnetic Resonance Imaging (MRI) of the CNS. ⋯ Propofol can be safely used for total intravenous anaesthesia in children undergoing MRI.
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Acta Anaesthesiol Scand · May 1996
Gastric emptying of a light hospital breakfast. A study using real time ultrasonography.
While intake of clear fluids 2-3 h before surgery is considered safe as it does not influence gastric content, it is not known if the same applies to a light breakfast meal. We therefore studied gastric emptying of a light breakfast in healthy, female volunteers without evidence of gastrointestinal motility disorders. The test meal consisted of one slice of buttered toast with jam, one cup of coffee without milk or sugar and one glass of pulp-free orange juice taken together with a paracetamol mixture. ⋯ The gastric antral area returned to fasting value significantly faster than the disappearance of solid particles; median 150 min versus 210 min; P = 0.01. Our results show that in healthy subjects the stomach cannot be considered empty for solid particles the first 4 h after a light breakfast meal. To secure some safety limits, we suggest a 6-h mandatory preoperative fast after a light breakfast.
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Acta Anaesthesiol Scand · May 1996
Randomized Controlled Trial Clinical TrialReduced hypoxic chemosensitivity in partially paralysed man. A new property of muscle relaxants?
It was hypothesized that non-depolarizing neuromuscular blocking agents impair hypoxic chemosensitivity in man. ⋯ It is concluded that non-depolarizing neuromuscular blocking agents impair hypoxic ventilatory regulation. Further experimental studies are warranted to fully describe the mechanism(s) responsible for this interaction.