Anaesthesia
-
Randomized Controlled Trial
Respiratory protection during high-fidelity simulated resuscitation of casualties contaminated with chemical warfare agents.
Emergency room personnel are threatened by secondary poisoning when treating victims affected by chemical warfare agents. Therefore, resuscitation skills practised with respiratory protection equipment in place require evaluation. We investigated the influence of wearing air-purifying respirators on the simulated resuscitation of chemical warfare agent casualties. ⋯ All anaesthetists preferred the panoramic visor in terms of visual orientation but 88% of them rated the binocular mask as being more comfortable. Modern respirators have a negligible effect on simulated resuscitation scenarios for victims affected by chemical warfare agents. Panoramic visor respirators allow better visual orientation for anaesthetists during simulated resuscitation.
-
Multicenter Study
Regional anaesthesia for limb surgery: a review of anaesthetists' beliefs and practice in the Oxford region.
We conducted a postal survey of 210 anaesthetists in the Oxford region to determine their views and practice regarding the timing of regional anaesthesia when combined with general anaesthesia for adults undergoing limb surgery and to compare the results with those obtained in a similar survey conducted in 2001. Of the 151 respondents (72% response rate), 102 (68%) regularly combined regional and general anaesthesia for adult limb surgery. ⋯ Significantly fewer anaesthetists believed it necessary to perform peripheral nerve blocks before general anaesthesia than in 2001, marking another significant change in practice. Overall, the results indicate an increased popularity of regional blocks in combination with general anaesthesia when compared with 2001 practice, which we believe is related to high quality advanced training modules now on offer to senior trainees in the Oxford region.
-
Comparative Study
The Pentax-AWS((R)) rigid indirect video laryngoscope: clinical assessment of performance in 320 cases.
The Pentax-AWS airway scope system is a rigid indirect video laryngoscope with integrated tube guidance. Laryngoscopy and intubation are visualised using a built in LCD monitor which displays the view obtained by a CCD camera mounted in the tip of the laryngoscope. We describe its clinical performance in 320 patients. ⋯ Intubation difficulty scale (score = 0 in 305 patients, score = 1 in 14 and score = 2 in one patient) indicates that tracheal intubation was performed easily in most cases. The Pentax-AWS not only improves the laryngeal view, but its tube guide also facilitates rapid, easy and reliable tracheal intubation under vision. It can be useful in routine anesthesia care and may be advantageous in the situation of unanticipated difficult intubation.
-
During an expedition to climb Everest in 1933, expedition doctor Raymond Greene administered an open-drop chloroform anaesthetic to a Tibetan patient at an altitude of more than 14,000 feet. The patient's subsequent apparent cardiopulmonary arrest has long been attributed to the effects of altitude on anaesthetic delivery. However, anaesthetics can be safely administered at a wide variety of altitudes by adequately trained and experienced anaesthetists. The problems may have arisen from an inadequate depth of anaesthesia consequent to decreased chloroform vaporisation in a cold environment, Greene's concern about potential depression of ventilation and the contemporary lack of a precise approach to assessing depth of anaesthesia.