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J Hand Surg Eur Vol · Feb 2004
Randomized Controlled Trial Comparative Study Clinical TrialRandomized trial of buffered versus plain lidocaine for local anaesthesia in open carpal tunnel decompression.
- A C Watts, P Gaston, and G Hooper.
- The Hand Unit, St John's Hospital, Livingston, West Lothian, UK.
- J Hand Surg Eur Vol. 2004 Feb 1; 29 (1): 30-1.
AbstractWe performed a randomized double-blind case-control study in 64 consecutive patients undergoing open carpal tunnel decompression under local anaesthetic to assess the pain experienced on injection of plain lidocaine (pH 6.4) compared with lidocaine buffered with sodium bicarbonate (pH 7.4). The results showed no statistical difference in the pain scores reported by patients. The mean pain scores for all patients were low, and most patients reported that they were "not at all anxious" about receiving a similar injection in the future.
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