Document Detail

Clinicopathologic Observations on Laryngoplasty Failure in a Horse.
MedLine Citation:
PMID:  22548626     Owner:  NLM     Status:  Publisher    
OBJECTIVE: To report morphologic findings associated with laryngoplasty failure in a horse. STUDY DESIGN: Clinical report. ANIMALS: A 9-year-old Thoroughbred cross gelding. METHODS: Necropsy and histopathology were performed on a horse that died peracutely during anesthetic recovery after correction of a right dorsal displacement of the ascending colon. Three weeks earlier the horse had left laryngoplasty and ventriculocordectomy. RESULTS: Dissection of the larynx revealed that the laryngoplasty suture had pulled through the muscular process of the left arytenoid cartilage, which appeared grossly normal. Histopathology of the arytenoid muscular process revealed cartilage necrosis, granulation tissue, and inflammation around the cartilage and within the cartilage failure line, and small numbers of coccoid bacteria in a minority of cartilage canals. Multifocal cardiomyopathy and pulmonary congestion, edema, and hemorrhage were also observed histologically. CONCLUSION: Death was attributed to peracute pulmonary edema associated with cardiac abnormalities and airway obstruction from laryngoplasty failure. Morphologic changes in the muscular process indicate gradual progression toward laryngoplasty failure, possibly associated with suture-induced pressure necrosis and/or microscopic low-grade postoperative infection.
Michael Robert Hardcastle; Frederik Ekhart Theo Pauwels; Mark Grey Collett
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-30
Journal Detail:
Title:  Veterinary surgery : VS     Volume:  -     ISSN:  1532-950X     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-5-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8113214     Medline TA:  Vet Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© Copyright 2012 by The American College of Veterinary Surgeons.
Pathobiology Section, FET Pauwels to Massey Equine,, Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North,, New Zealand.
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