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Published on: November 2, 2019
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Modified technique for common carotid artery transposition in standing horses
Heidi Tapio1, David Argüelles1, Luis A Gracia-Calvo1
1Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland.
Veterinary Surgery : VS
|November 29, 2016
Summary
A modified surgical technique successfully repositioned the common carotid artery (CCA) in standing horses for repeated catheterization in most cases. Postoperative endoscopy is recommended due to potential laryngeal hemiplegia.
Area of Science:
- Veterinary Surgery
- Equine Medicine
- Surgical Techniques
Background:
- The common carotid artery (CCA) is crucial for vascular access in horses.
- Permanent translocation of the CCA offers potential for repeated catheterization.
- Previous techniques may have limitations in standing equine surgery.
Purpose of the Study:
- To describe a modified surgical technique for permanent translocation of the equine CCA.
- To evaluate the feasibility and outcomes of repositioning the CCA to a subcutaneous position in standing horses.
Main Methods:
- An experimental study involving eight healthy adult horses (Standardbred and Warmblood).
- Surgery performed in standing horses under sedation and local anesthesia.
- Modified approach and closure techniques for CCA translocation, followed by a 3-week healing period before catheterization.
Main Results:
- Successful repeated catheterization of the transposed CCA in six of eight horses for up to 10 weeks.
- No intraoperative complications; mild peri-incisional edema resolved spontaneously in two horses.
- Two horses experienced complications: surgical site infection and periarterial fibrosis, compromising CCA patency. Two horses developed laryngeal hemiplegia.
Conclusions:
- Permanent CCA translocation in standing horses is a viable technique in most cases (6/8).
- Potential complications include surgical site infection, fibrosis, and laryngeal hemiplegia.
- Postoperative upper airway endoscopy is advisable to monitor for laryngeal hemiplegia.
