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Skin Perfusion Changes within 12 h after Axillary Plexus Block.

Andrea Wenger1, Amro Amr, Hans-Eberhard Schaller

  • 1Clinic for Hand, Plastic, Reconstructive and Burn Surgery, BG Unfallklinik Tübingen, Eberhard Karl University, Tübingen, Germany.

European Surgical Research. Europaische Chirurgische Forschung. Recherches Chirurgicales Europeennes
|June 1, 2017
PubMed
Summary
This summary is machine-generated.

Axillary plexus block significantly improves blood flow and oxygen saturation in the upper extremities for up to 6 hours. This enhances perfusion, benefiting critical tissue recovery in reconstructive surgery.

Keywords:
Axillary plexus blockBlood flowLaser DopplerMicrocirculation changesTissue spectrophotometry

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Area of Science:

  • Anesthesiology
  • Vascular Surgery
  • Microsurgery

Background:

  • Improved blood flow is crucial for microvascular reconstruction and digit replantation.
  • Axillary plexus block is a potential method to enhance peripheral circulation.

Purpose of the Study:

  • To quantify skin perfusion changes and their duration following axillary plexus block.
  • To evaluate the impact of axillary plexus block on peripheral blood flow in the upper extremities.

Main Methods:

  • Peripheral blood flow in 20 patients undergoing trapeziectomy under axillary plexus block was analyzed.
  • Laser Doppler spectrophotometry measured perfusion over 12 hours, using the contralateral hand as a control.

Main Results:

  • Axillary plexus block significantly increased peripheral oxygen saturation (117% vs. 93%, p=0.019).
  • Peripheral blood flow (220% vs. 130%, p=0.037) and velocity (164% vs. 117%, p=0.011) were also significantly elevated.
  • These improvements were observed for the first 6 hours post-anesthesia.

Conclusions:

  • Axillary plexus block enhances peripheral tissue oxygen saturation in the upper extremities.
  • The improved perfusion suggests potential benefits for critically perfused tissues in reconstructive procedures.
  • Axillary plexus block offers a viable method for improving circulation in upper extremity surgeries.