Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Aug 1984
Comparative StudyAtropine vs glycopyrrolate during reversal of pancuronium block in patients anaesthetized with halothane.
Atropine 0.015 mg kg-1 and glycopyrrolate 0.0075 mg kg-1 were compared as antimuscarinic agents during reversal of pancuronium block with neostigmine 0.03 mg kg-1 in 30 patients anaesthetized with thiopental-N2O-halothane and undergoing minor surgery. In patients treated with atropine-neostigmine, the frequencies of bradycardia and junctional rhythm were relatively high and about the same as those reported by us previously in patients anaesthetized with thiopental-N2O-fentanyl. As in our previous study, glycopyrrolate seemed to have advantages over atropine during reversal of pancuronium block: the incidences of bradycardia and junctional rhythm were significantly less in patients treated with glycopyrrolate. Recovery from anaesthesia, as assessed by the awakening after discontinuation of N2O and halothane administration, and the incidence of postoperative nausea and vomiting, were not significantly different between the atropine and glycopyrrolate groups.
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Acta Anaesthesiol Scand · Aug 1984
Randomized Controlled Trial Comparative Study Clinical TrialEnflurane, isoflurane and the eye.
The intra-ocular pressure was monitored in ophthalmological patients in whom nitrous oxide/oxygen anaesthesia was supplemented with an inspired concentration of 1% enflurane (10 patients) or 0.7% isoflurane (10 patients). These concentrations are proportionate to 0.6 MAC in oxygen. ⋯ There was no significant difference between agents. Isoflurane offers an alternative to enflurane in surgery when intra-ocular pressure is of importance.
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Acta Anaesthesiol Scand · Aug 1984
Intervillous blood flow during caesarean section with prophylactic ephedrine and epidural anaesthesia.
We administered a 15 mg i.v. bolus of ephedrine at the commencement of epidural blockade to nine healthy parturients scheduled for elective caesarean section. Nine other patients did not receive prophylactic ephedrine before epidural anaesthesia (control group). Lactated Ringer solution, 30 ml/kg, was infused before and during blockade, and left uterine displacement was used to minimize aortocaval compression. ⋯ S.). In the ephedrine group there was in this preliminary study a trend to increasing IBF during falling perfusion pressure (MAP). The results of this preliminary study suggest that ephedrine will not affect IBF, but to prevent maternal hypotension ephedrine should be used as an i.v. infusion instead of a bolus injection.
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Acta Anaesthesiol Scand · Aug 1984
Controlled ventilation using the Lack circuit with an injector device.
A Lack breathing system with an injector device has been used for controlled ventilation. Oxygen was delivered through an injector device, which was positioned between the Lack circuit and the catheter mount, whilst nitrous oxide was delivered from the anaesthetic machine. ⋯ The circuit was then studied on ten patients undergoing surgery and it was found that an end-tidal carbon dioxide concentration of 5-6% could be maintained. The use of this system during general anaesthesia is discussed.
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Acta Anaesthesiol Scand · Aug 1984
The duration of pain relief after penile block to boys undergoing circumcision.
Bupivacaine plain, 2.5 mg/ml, was used for a nerve block of the dorsal nerves of the penis. Satisfactory postoperative analgesia was obtained in 24 of 28 boys undergoing circumcision. Eighteen of the 24 boys with a successful nerve block did not require analgesics during the first 24 h postoperatively. All blocks were performed by the surgeon just before surgery.