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Related Experiment Videos

Surface oximetry. A new method to evaluate intestinal perfusion.

J J Ferrara1, D L Dyess, M Lasecki

  • 1Department of Surgery, University of South Alabama, Mobile 36617.

The American Surgeon
|January 1, 1988
PubMed
Summary
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Pulse oximetry (POX) offers a rapid, noninvasive method for assessing intestinal vascularity. This study found POX to be superior to standard clinical criteria and doppler ultrasound for evaluating tissue oxygenation and arterial flow during surgery.

Area of Science:

  • Surgical assessment
  • Intraoperative monitoring
  • Vascular physiology

Background:

  • Evaluating intestinal vascularity intraoperatively is crucial for surgical outcomes.
  • Current methods like standard clinical criteria (SCC), doppler ultrasound (DUS), and intravenous fluorescein (FLF) have limitations.
  • Combining techniques is often necessary to overcome individual method disadvantages.

Purpose of the Study:

  • To compare the efficacy of pulse oximetry (POX) against established methods for assessing intestinal vascularity.
  • To determine if POX can serve as a supplementary tool in intraoperative evaluation of intestinal blood flow.
  • To assess POX's performance in intestinal segments with induced arterial, venous, and arteriovenous occlusions.

Main Methods:

  • Comparison of pulse oximetry (POX) with standard clinical criteria (SCC), doppler ultrasound (DUS), and intravenous fluorescein (FLF).

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  • Evaluation conducted on surgically created segments of intestine with arterial, venous, and arteriovenous occlusion.
  • Utilized a commercially available instrument for measuring tissue oxygenation and arterial flow via POX.

    • Main Results:

    • Pulse oximetry (POX) demonstrated a rapid and reproducible assessment of intestinal vascularity.
    • POX was found to be a superior technique compared to SCC and DUS in evaluating intestinal blood flow.
    • The noninvasive nature of POX enhances its utility in intraoperative settings.

    Conclusions:

    • Pulse oximetry (POX) is a promising, noninvasive tool for intraoperative assessment of intestinal vascularity.
    • POX may supplement or potentially replace less effective methods like SCC and DUS.
    • Further research can validate POX's role in diverse surgical scenarios involving intestinal compromise.