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Related Experiment Videos

Differences between arterial and venous occlusion in microvascular surgery

L N van Adrichem1, I Gultuna, H D Mulder

  • 1Department of Plastic and Reconstructive Surgery, University Hospital Dijkzigt, Rotterdam, The Netherlands.

Scandinavian Journal of Plastic and Reconstructive Surgery and Hand Surgery
|January 1, 1993
PubMed
Summary

This study found that color and capillary refill are better indicators of arterial versus venous occlusions after microvascular surgery than thermometry. Combined occlusions were difficult to detect reliably.

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Area of Science:

  • Vascular Surgery
  • Microsurgery
  • Diagnostic Techniques

Background:

  • Vascular occlusions post-microvascular anastomosis are a significant complication.
  • Distinguishing between arterial and venous occlusions is crucial for timely intervention.

Purpose of the Study:

  • To evaluate the diagnostic utility of color, capillary refill, thermometry, and laser Doppler measurements in differentiating arterial and venous occlusions.
  • To assess the reliability of these methods in detecting combined arterial and venous occlusions.

Main Methods:

  • Retrospective analysis of 26 patients with vascular occlusions after microvascular anastomoses (November 1985 - November 1988).
  • Comparison of skin color, capillary refill time, skin thermometry, and laser Doppler measurements between arterial and venous occlusions.

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Main Results:

  • Significant differences were observed in color (p=0.006), capillary refill (p=0.007), and laser Doppler flow (p=0.02) between arterial and venous occlusions.
  • Skin thermometry and laser Doppler bandwidth showed no significant difference (p>0.05).
  • Combined arterial and venous occlusions presented with values similar to either isolated venous or arterial occlusions, lacking distinct diagnostic criteria.

Conclusions:

  • While color and capillary refill show promise, no single variable reliably diagnosed arterial versus venous occlusions.
  • Reoperation to check vascular anastomoses is advised when occlusion is suspected.
  • Careful examination of both arterial and venous anastomoses is recommended due to the unreliability in detecting combined occlusions.