Tomlinson P J, Field J
Department of Orthopaedics, Cheltenham General Hospital, Cheltenham, Gloucestershire, UK.
J Hand Surg Eur Vol. 2010 Mar;35(3):232-3. doi: 10.1177/1753193409354138. Epub 2009 Dec 9.
The aim of this randomized controlled study was to determine whether administration of lignocaine with adrenaline is less painful when injected at room temperature compared to refrigerated temperature. A cohort of 50 patients undergoing unilateral carpal tunnel decompression was randomized to room temperature or refrigerated local anaesthetic. Pain scores were assessed using a 10 mm visual analogue scale. Mean pain scores were 4.0 (SD +/- 1.5) for room temperature and 6.5 (SD +/- 1.7) for refrigerated local anaesthetic (P < 0.001). This study demonstrates that patients experience greater pain levels with administration of local anaesthetic at refrigerated temperatures prior to open carpal tunnel release.
这项随机对照研究的目的是确定与冷藏温度相比，在室温下注射含肾上腺素的利多卡因时疼痛是否较轻。一组50例接受单侧腕管减压术的患者被随机分为接受室温或冷藏局部麻醉剂组。使用10毫米视觉模拟量表评估疼痛评分。室温下的平均疼痛评分为4.0（标准差±1.5），冷藏局部麻醉剂组为6.5（标准差±1.7）（P<0.001）。本研究表明，在开放性腕管松解术前，患者在冷藏温度下接受局部麻醉剂时疼痛程度更高。
