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Related Experiment Videos

[Local digital anesthesia using lidocaine with or without bicarbonate. A comparative randomized study].

T Fikry1, R al Harrar, A Harfaoui

  • 1Service de chirurgie orthopédique et réparatrice, CHU Ibnou Rochd, Casablanca, Maroc.

Revue De Chirurgie Orthopedique Et Reparatrice De L'Appareil Moteur
|April 7, 1999
PubMed
Summary

Adding bicarbonate to lidocaine significantly reduces injection pain for extremity surgeries. This simple technique enhances patient comfort during procedures like digital joint testing and steroid injections.

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Area of Science:

  • Anesthesiology
  • Pain Management
  • Hand Surgery

Background:

  • Local anesthesia with lidocaine is standard for extremity procedures, especially on fingers.
  • Injection pain is a common patient complaint, leading to the exploration of pain reduction methods.
  • Alkalinization of lidocaine with bicarbonate has shown mixed results in previous studies.

Purpose of the Study:

  • To evaluate the efficacy of alkalinized lidocaine in reducing pain during local anesthesia injections.
  • To compare pain intensity between standard lidocaine and lidocaine with bicarbonate using a randomized controlled trial.

Main Methods:

  • A randomized comparative study involving sixty patients with multidigital trauma.
  • Each patient received standard lidocaine in one finger and alkalinized lidocaine (lidocaine with bicarbonate) in another.

Related Experiment Videos

  • Pain intensity during injection was measured using a 0-10 scale.

    • Main Results:

    • A statistically significant reduction in pain was observed with alkalinized lidocaine compared to standard lidocaine (p < 0.001).
    • Alkalinization of lidocaine demonstrably decreased patient discomfort during the injection process.

    Conclusions:

    • Alkalinizing lidocaine with bicarbonate effectively reduces pain during local anesthetic injections.
    • The mechanism may involve enhanced intracellular passage of lidocaine, leading to faster pain receptor blockade.
    • This technique offers significant benefits for outpatient extremity surgery, digital joint assessment, and steroid injections.