Acta anaesthesiologica Belgica
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Acta Anaesthesiol Belg · Jan 1996
Comparative Study Clinical Trial Controlled Clinical TrialA comparison of the laryngeal mask and tracheal tube for controlled ventilation.
The use of laryngeal mask airway (LMA), size 3 or 4, and endotracheal tube (ETT) 8.0 mm was studied comparatively to determine the adequacy of respiratory function during positive pressure ventilation (PPV) by applying a series of given peak inspiratory pressures (PIPs) of 10.0, 12.5, 15.0, 17.5, 20.0 and 30.0 cm H2O. Eleven anesthetised patients underwent a double comparative trial. ⋯ Higher values of VT (1.7 mk.kg-1) were expired via the LMA compared with ETT when a given PIP of less than 20 cmH2O was applied. LMA as opposed to ETT secured normocapnia during PPV with low PIPs.
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Acta Anaesthesiol Belg · Jan 1996
Comparative StudyComparison between CDI-100 continuous SO2, Hb, and Hct monitoring, intermittent ABL-4 saturation and Hb monitoring, and lab Hb and Hct monitoring.
During extracorporeal circulation (ECC) a continuous monitoring of venous oxygen saturation yields a quantitative impression of the equilibrium of oxygen supply and oxygen consumption in steady state conditions. The aim of the investigation was to study whether the measurements of venous oxygen saturation and haemoglobin of a continuous on-line monitor (CDI-100) agree with those of the ABL-4 bloodgasmonitor or the haemoglobincyanid method in hospital laboratory. The study group consisted of 21 patients, with comparable conditions of anesthesia and ECC set-up. ⋯ All values (except one value) are situated within the limits of agreement. Bias of hemoglobin measurement (CDI-100 versus hospital laboratory) is 0.2, 0.0 and 0.1 gr/dl, and all values are situated within the limits of agreement. The results confirm that the CDI-100, in the set-up as described, can be used as a reliable instrument to monitor venous oxygen saturation and haemoglobin during ECC.
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Acta Anaesthesiol Belg · Jan 1996
Case ReportsTransient radicular irritation followed by meningitis after spinal anesthesia.
Neurotoxicity of spinally administered hyperbaric 5% lidocaine is becoming a serious concern in view of the recent literature. We report a case of probable neurotoxicity of hyperbaric 5% lidocaine, followed by an aseptic meningitis. This case report emphasizes the danger of using hyperbaric 5% lidocaine in a too high dose while performing spinal anesthesia.
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Acta Anaesthesiol Belg · Jan 1996
Randomized Controlled Trial Comparative Study Clinical TrialComparison of neuromuscular block of atracurium and rocuronium in adults.
We studied the time-course of action of atracurium 0.5 mg kg-1 and rocuronium 0.6 mg kg-1 in 24 healthy adult patients. Anesthesia was induced with thiopentone and sufentanil, and maintained with 50% nitrous oxide and 1% enflurane in oxygen. Neuromuscular transmission was monitored by stimulating the ulnar nerve at the wrist and measuring the acceleration of the thumb using the TOF-Guard accelerograph monitor. ⋯ Clinical duration of action (Tl25) was longer with atracurium (52.3 +/- 7.2 min) than with rocuronium (40.0 +/- 6.4 min). Recovery index (Tl25-Tl75) and time for TOF ratio to recover to 0.75 were 17.8 +/- 4.2 and 73.9 +/- 8.8 min with atracurium, and 13.8 +/- 4.1 and 70.4 +/- 14.1 min with rocuronium. The differences between both groups were statistically significant except the difference in the time for TOF to return to 0.75.