Towards evidence based emergency medicine: best BETs from the Manchester Royal Infirmary. Effect of warming local anaesthetics on pain of infiltration.

A short cut review was carried out to establish whether warming local anaesthetic solution reduced the pain of infiltration. A total of 720 papers were found using the reported searches, of which 11 presented the best evidence to answer the clinical question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results and study weaknesses of these best papers are presented in table 2. It is concluded that warmed local anaesthetic solution is less painful than that at room temperature.