Equis ISSN 2398-2977

Carotid artery: ligation

Contributor(s): Paddy Dixon, Graham Munroe

Introduction

  • Guttural pouch mycosis   Guttural pouch: mycosis  is a fungal infection within the pouch that often invades a major artery, such as the internal carotid artery   →   epistaxis and possible death.
  • Surgical treatment involves occlusion of the affected artery and, very rarely, surgical removal of fungal plaques from the pouch.
  • Ligation of the artery on the cardiac side of the fungal lesion is thought to cause a drop in pressure enough to avert hemorrhage and to create a thrombus which extends cranially to the lesion, thereby preventing retrograde bleeding from circle of Willis.

Uses

Advantages

  • Relatively simple and quick procedure.
  • In bilateral infections (rare) both arteries can be occluded simultaneously.
  • Can be carried out in the face of a fatal hemorrhagic episode.

Disadvantages

  • Does not eliminate potential for retrograde hemorrhage from Circle of Willis, but such retrograde bleeding is rare.

Requirements

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Preparation

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Procedure

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Aftercare

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Outcomes

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Prognosis

Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Greet T R C (1987) Outcome of treatment in 35 cases of guttural pouch mycosis. Equine Vet J 19 (5), 483-487 PubMed.


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