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Towards a pain-free venepuncture.

E L Ong1, N L Lim, C K Koay

  • 1Changi General Hospital, Department of Anaesthesia and Surgical Intensive Care, 2 Simei Street 3, Singapore 529889.

Anaesthesia
|February 15, 2000
PubMed
Summary

Buffering lidocaine 1% and using the counter-irritation technique significantly reduce pain during subcutaneous lidocaine infiltration. These methods offer effective pain relief for patients undergoing procedures requiring local anesthesia.

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Area of Science:

  • Anesthesiology
  • Pain Management
  • Local Anesthesia

Background:

  • Subcutaneous lidocaine infiltration is commonly used for local anesthesia.
  • The infiltration process can cause significant patient discomfort and pain.
  • Effective pain management strategies are crucial for improving patient experience.

Purpose of the Study:

  • To evaluate the efficacy of buffered lidocaine 1%, warmed lidocaine 1%, and the counter-irritation technique in reducing pain associated with subcutaneous lidocaine infiltration.
  • To compare the pain scores across different intervention groups.

Main Methods:

  • A randomized, prospective trial involving 122 patients.
  • Patients were allocated to receive buffered lidocaine 1%, warmed lidocaine 1%, or infiltration via the counter-irritation technique.
  • Pain was assessed using a visual analogue pain score during cannulation.

Main Results:

  • Significantly lower pain scores were observed in the buffered lidocaine 1% group (p < 0.02).
  • The counter-irritation technique group also demonstrated significantly lower pain scores (p < 0.05).
  • Warmed lidocaine did not show a statistically significant reduction in pain compared to standard infiltration.

Conclusions:

  • Buffering lidocaine 1% is an effective method for alleviating infiltration pain.
  • The counter-irritation technique is also effective in reducing pain during lidocaine administration.
  • These techniques can improve patient comfort during procedures requiring local anesthesia.

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