Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Jan 1998
Comparative StudyCatheter-related infections following axillary vein catheterization.
The aim of this study was to determine the rate of infectious complications following axillary vein cannulation and to compare to that observed after internal jugular vein catheterization. ⋯ Catheter-related infection after axillary vein catheterization was similar to that observed after internal jugular vein catheterization. The chance of developing catheter-related sepsis was less than 10% with either route when catheters were used for the treatment of severely ill patients.
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Acta Anaesthesiol Scand · Jan 1998
Comparative StudyAir contamination of a closed anesthesia circuit.
Closed-circuit anesthesia (CCA) has certain advantages such as decreased cost, decreased anesthetic gas pollution, improved inhalational gas humidity and temperature in comparison to conventional inhalational anesthesia using a high fresh gas flow, i.e. more than 2 L x min(-1), with a semi-closed breathing circuit. The main disadvantage of CCA is the possibility of hypoxic anesthetic gas delivery. ⋯ We herein present a case of air contamination of the breathing circuit through a sampling line of an anesthetic gas monitor. The air caused a decrease in the oxygen concentration during closed circuit anesthesia.
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Acta Anaesthesiol Scand · Jan 1998
Comparative StudySystemic oxygen uptake during experimental closed-chest cardiopulmonary resuscitation using air or pure oxygen ventilation.
Although clinical cardiopulmonary resuscitation always includes ventilation with pure oxygen, this kind of ventilation has been reported to be associated with worse neurological outcome than ventilation with air in experimental cardiopulmonary resuscitation (CPR). The aim of the present investigation was to compare the systemic oxygen uptake during experimental closed-chest CPR including ventilation with pure oxygen or ambient air and, furthermore, to elucidate possible mechanisms of action in the regulation of pulmonary gas exchange. ⋯ Pulmonary hypoxic vasoconstriction appeared to be abolished during CPR including pure oxygen ventilation. Blood flow, not ventilation or pulmonary gas exchange, is the limiting factor during experimental closed-chest CPR.
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Acta Anaesthesiol Scand · Jan 1998
Effects of high thoracic epidural anaesthesia on the peripheral airway reactivity in dogs.
It has been speculated that epidural anaesthesia may induce bronchoconstriction via the mechanism of a sympathetic blockade. However, this hypothesis has not been confirmed by any experimental evidence. Therefore, we investigated the effects of high thoracic epidural anaesthesia with neural sympathetic blockade on basal airway resistance and airway reactivity in response to bronchoconstrictive stimuli in a canine periphery lung model. ⋯ Our results suggest that epidural anaesthesia with neural sympathetic blockade has no influence on the basal peripheral airway resistance; however, it prolongs the airway reactivity to Ach or His challenge, probably by the mechanism of reducing CO.