Phase behaviour of premixed 0.25% isoflurane in 50% nitrous oxide and 50% oxygen †
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چکیده
منابع مشابه
Oxygen concentrators performance with nitrous oxide at 50:50 volume.
BACKGROUND AND OBJECTIVES Few investigations have addressed the safety of oxygen from concentrators for use in anesthesia in association with nitrous oxide. This study evaluated the percent of oxygen from a concentrator in association with nitrous oxide in a semi-closed rebreathing circuit. METHODS Adult patients undergoing low risk surgery were randomly allocated into two groups, receiving a...
متن کاملIsoflurane with either 100% oxygen or 50% nitrous oxide in oxygen for caesarean section.
Two hundred mothers undergoing general anaesthesia for Caesarean section were allocated randomly to receive either 100% oxygen (group 100) or 50% nitrous oxide in oxygen (group 50), both supplemented with isoflurane. In each group the concentrations of isoflurane were chosen to deliver 1.5 MAC for the first 5 min after induction and 1.0 MAC thereafter. The mean umbilical venous PO2 was greater ...
متن کاملHypoxaemia after inhalation of 50% nitrous oxide and oxygen.
We have investigated, in volunteers, the effect of inhaling 50% nitrous oxide in oxygen on subsequent oxygenation. Subjects breathed either 50% nitrous oxide in oxygen or 50% nitrogen in oxygen during hyperventilation and normal ventilation. Arterial oxygen saturation and end-expired oxygen concentrations were lower after 50% nitrous oxide in oxygen than after the other mixture with both patter...
متن کاملInterest of 50% nitrous oxide and oxygen premix sedation in gerodontology
Elderly patients presenting cardiovascular, respiratory, or neurological disorders require a specific dental care approach, especially patients presenting Alzheimer's disease. Sedative procedures can prevent dental care-induced stress, even when there is effective pain control, but they have to be adapted to accommodate age-induced physiological modifications, age-related pathologies, and the c...
متن کاملUse of fixed 50% nitrous oxide-oxygen mixture for lumbar punctures in pediatric patients.
To the Editors: A lumbar puncture is one of the most commonly painful procedures performed in pediatric medical practice. Despite evidence to suggest that analgesia and sedation are both efficacious and safe in children, clinical practices do not adhere to these findings. A study carried out in 1993 by Quinn et al showed that 95% of children who had a lumbar puncture performed in a pediatric em...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 2002
ISSN: 0007-0912
DOI: 10.1093/bja/aef280