Anaesthesia
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The efficacy of cricoid pressure was studied in 10 adult cadavers. The oesophageal pressure that would result in regurgitation during measured values of cricoid pressure was determined. Oesophageal pressure, recorded by a 2 mm diameter oesophageal tube, was increased by oesophageal distension with saline, and incremental levels of cricoid force, 20, 30 and 40 Newtons, were applied with a cricoid yoke. ⋯ Thirty Newtons of cricoid force prevented regurgitation of saline in all cadavers with oesophageal pressures of up to 40 mmHg. Rupture of the oesophagus occurred in three cadavers: one at 30 and two at 40 Newtons of cricoid force, but there was no rupture at 20 Newtons of cricoid force. In the other seven cadavers oesophageal pressures were also studied with a 4.6 mm diameter (14 FG) oesophageal tube, which did not reduce the efficacy of cricoid pressure in preventing regurgitation.
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The experience of Advanced Trauma Life Support training received by three anaesthetists is discussed with particular reference to the teaching of airway management, the grade of staff who should attend the present courses and the relevance to the British hospital system. We conclude that these courses are useful but limited by their inflexibility and failure to recognise the difference in skill mix in the British setting.
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One hundred and thirty-two patients staying in hospital more than 24 h were visited pre- and postoperatively. Patients were asked a standard set of questions, and 39% could not remember accurately what they were asked. ⋯ In 15% of patients, information that significantly altered subsequent anaesthetic management was discovered, but in less than 3% would ignorance of the patient's condition have required postponement of the surgery. We conclude that the major reason for a pre-operative visit by an anaesthetist is that patients appreciate it, rather than it being medically necessary.
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In 1985 and 1990 postal questionnaires were sent to anaesthetic senior registrars in training in the United Kingdom to determine the extent of higher specialist training in chronic pain management. There were wide variations in training and experience amongst senior registrars. Overall there was little change between 1985 and 1990. In particular the number of anaesthetic senior registrars who felt equipped to undertake a consultant post with an interest in chronic pain management had not increased.
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A case report is described with successful outcome of prolonged cardiopulmonary resuscitation in a 30-year-old man suffering from acute deep hypothermia. His lowest temperature recorded was 23 degrees C. ⋯ The patient eventually left hospital with no permanent sequelae. A review of hypothermia follows, emphasising some important management principals and pitfalls.