Anaesthesia
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A case is described of an extensive block and hypotension which occurred after inadvertent dural puncture and subsequent epidural injection of bupivacaine. The subarachnoid spread of solution from the extradural space was confirmed radiologically.
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This survey reviews the structure and content of all anaesthetic record charts in use in the 40 hospitals of the Yorkshire Regional Health Authority in the light of previous recommendations. Twenty-two different anaesthetic charts were used by 290 anaesthetists in this region. ⋯ Fourteen of the 22 charts omitted important headings concerned with patient identification and eight charts did not provide a record of the whole perioperative period. Some comprehensive forms are in use, chiefly in smaller hospitals, but there have been few changes in design in the last 10 years despite increasing medicolegal awareness.
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An experimental study of the Oxford Miniature Vaporizer in combination with a paediatric resuscitation bag has demonstrated efficient halothane vaporization at small tidal volumes. This technique will be appropriate in paediatric anaesthesia with the Triservice apparatus.
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This study compared the spread of 3 ml of a solution of bupivacaine-methylene blue in the intercostal space of patients and cadavers. There were 51 successful injections in each group which demonstrated in 86% of patient injections and 84% of cadaver injections that spread was confined to one intercostal space. Spread was more extensive in cadavers, probably as a result of autolysis. It would therefore still appear necessary, when low volumes of local anaesthetic are used, to block each intercostal nerve individually.