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Towards less painful local anesthesia.

D A Redd1, A M Boudreaux, R B Kent

  • 1Department of Surgery, Carraway Methodist Medical Center, Birmingham, Alabama.

Alabama Medicine : Journal of the Medical Association of the State of Alabama
|October 1, 1990
PubMed
Summary
This summary is machine-generated.

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Buffered lidocaine significantly reduces injection pain. Adding bicarbonate to lidocaine offers a less painful and better-tolerated local anesthesia option for patients undergoing medical procedures.

Area of Science:

  • Anesthesiology
  • Pain Management
  • Pharmacology

Background:

  • Local anesthesia, such as lidocaine, is essential for medical procedures.
  • The primary drawback of lidocaine injection is significant patient discomfort and pain.
  • Pain during injection is influenced by factors like injection speed, needle size, and patient characteristics.

Purpose of the Study:

  • To evaluate patient-reported pain levels comparing standard lidocaine with buffered lidocaine.
  • To determine if buffering lidocaine with bicarbonate improves tolerability during subcutaneous injection.

Main Methods:

  • A comparative study involving 28 volunteers.
  • Subcutaneous injections of plain lidocaine were compared against lidocaine buffered with bicarbonate (1:10 ratio).

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  • Volunteers reported pain levels experienced during each injection type.

    • Main Results:

    • A significant majority (24 out of 28) of volunteers reported less pain with buffered lidocaine.
    • The buffered lidocaine solution was perceived as less painful and better tolerated.
    • The 1:10 dilution of bicarbonate in lidocaine demonstrated improved patient comfort.

    Conclusions:

    • Buffering lidocaine with bicarbonate is an effective method to reduce injection pain.
    • This simple modification enhances patient tolerance for local anesthesia.
    • Buffered lidocaine represents a promising strategy for improving the patient experience during procedures requiring local anesthetic.