局部麻醉剂升温会减轻其注射时的疼痛吗？
Does the warming of local anaesthetic reduce the pain of its injection?
作者信息
Dalton A M, Sharma A, Redwood M, Wadsworth J, Touquet R
机构信息
Department of Accident and Emergency, St Mary's Hospital, London, England.
出版信息
Arch Emerg Med. 1989 Dec;6(4):247-50. doi: 10.1136/emj.6.4.247.
One hundred and fifty-seven patients who warranted the injection of local anaesthetic were divided into two groups. One group received local anaesthetic at room temperature (21 degrees C) and the other at body temperature (37 degrees C). The pain resulting from the injection was assessed using a visual analogue scale. There was no significant difference in the level of pain experienced by the two patient groups. It is concluded that no advantage is gained by the warming of local anaesthetic before its administration.
157名需要注射局部麻醉剂的患者被分为两组。一组在室温（21摄氏度）下接受局部麻醉剂，另一组在体温（37摄氏度）下接受。使用视觉模拟量表评估注射引起的疼痛。两组患者经历的疼痛程度没有显著差异。得出的结论是，在注射局部麻醉剂之前将其加热没有优势。
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