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Pharynx: ventral pharyngotomy
Introduction
- Surgical access to the oropharynx is limited and the technique of ventral pharyngotomy has been reported as an alternative to ventral laryngotomy Larynx: ventral laryngotomy or oral approaches.
Uses
- Surgical access for:
- Epiglottic entrapment Larynx: epiglottic entrapment.
- Cleft soft palate Hard / soft palate: cleft.
- Subepiglottic cyst surgery Pharynx: cyst – resection.
Advantages
- Provides direct access to subepiglottic area.
Disadvantages
- Deep incision with limited visibility.
Technical problems
- Surgical access.
Alternative techniques
- Ventral laryngotomy Larynx: ventral laryngotomy.
- Oral approach.
- Mandibular symphysiotomy – cleft palate surgery.
- Transendoscopic laser surgery Laser surgery: transendoscopic – epiglottic surgery.
Time required
Preparation
- Aseptic skin preparation: 10 min.
- General anesthesia (GA): induction and maintenance: 20 min.
Procedure
- Access to oropharynx: 10-15 min.
Decision taking
Criteria for choosing test/procedure
- Other surgical approaches are more commonly used although direct access to subepiglottic area can be useful in cyst dissection.
Risk assessment
- Post-operative upper respiratory tract obstruction.
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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Further Reading
Publications
Refereed papers
- Recent references from PubMed and VetMedResource.
- Saulez M N & Gummow B (2009) Prevalence of pharyngeal, laryngeal and tracheal disorders in thoroughbred racehorses, and effect on performance. Vet Rec 165 (15), 431-435 PubMed.
- Ahern B J & Parente E J (2008) Surgical complications of the equine upper respiratory tract. Vet Clin North Am Equine Pract 24 (3), 465-484 PubMed.
- Robertson J T (2007) Surgical treatment of developmental cysts of the pharynx, larynx and the cervical region of the horse. Equine Vet Educ 19 (3), 137-138 VetMedResource.
- Sullivan E K & Parente E J (2003) Disorders of the pharynx. Vet Clin North Am Equine Pract 19 (1), 159-167 PubMed.
Other sources of information
- Ducharme N G & Cheetham J (2019) Pharynx. In: Equine Surgery. 5th edn. Eds: Auer J A & Stick J. Saunders, USA. pp 710-733.