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Reverse flow as an option in microvascular recipient anastomoses

P C Neligan¹, H She-Yue, P J Gullane

¹Division of Plastic Surgery, University of Toronto, Ontario, Canada.

Plastic and Reconstructive Surgery

|December 11, 1997

Summary

The study found that retrograde arterial pressures in the superior thyroid and facial arteries are similar to the radial artery. This suggests these arteries can support reverse flow flaps in reconstructive surgery.

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Area of Science:

Vascular Surgery
Anatomy
Reconstructive Surgery

Background:

The radial artery is known to support reverse flow skin flaps.
Investigating alternative arterial sources for retrograde flow is crucial for reconstructive procedures.

Purpose of the Study:

To measure and compare retrograde arterial pressures in the distal superior thyroid and facial arteries.
To assess the potential of these arteries to support reverse flow flaps.

Main Methods:

Measurement of retrograde arterial pressures in the distal superior thyroid (n=20) and facial (n=8) arteries.
Comparison of these pressures with mean systemic arterial pressure (n=20) and retrograde radial artery pressure (n=8).

Main Results:

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Retrograde arterial pressure in the radial artery was 50-60% of normal arterial pressure.

Similar retrograde pressures were observed in the distal superior thyroid and facial arteries.

Conclusions:

The superior thyroid and facial arteries possess adequate retrograde pressure to support reverse flow flaps.
This finding supports the clinical application of retrograde flaps based on these arteries in selected cases.