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Video-Assisted Left Partial Arytenoidectomy by Diode Laser Photoablation for Treatment of Canine Laryngeal Paralysis

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To evaluate the clinical outcome of left partial arytenoidectomy by video-assisted laser diode photoablation as a surgical treatment for canine laryngeal paralysis (LP). Study Design

Case series. Animals

Dogs with bilateral LP (n=20). Methods

After endoscopic diagnosis of bilateral LP, left partial arytenoidectomy was performed by photoablation of arytenoid cartilage tissue using a diode laser (600 m diameter, 15 W power, 980 nm wave length) to increase the width of the rima glottidis. Outcome was evaluated endoscopically (1 and 6 months) and clinically (1, 6, and 12 months). Results

No substantial complications occurred during photoablation or in the immediate postoperative period. Postoperative width of the rima glottidis ranged from 6 to 10 mm at its widest aspect. At 1 month, respiratory function after walking and short running appeared good. Clinical and endoscopic examination revealed good outcome at 1 and 6 months. At 6 months, there was no evidence of hypertrophic scar, hypertrophic granulation tissue, or stricture of the laryngeal glottis in any dog. Two dogs developed aspiration pneumonia after 12 months. Conclusions

Partial arytenoidectomy using video-assisted diode laser photoablation appears to be an effective technique for treating LP. Clinical Relevance

Partial arytenoidectomy by diode laser photoablation should be considered as an alternative technique for treatment of canine LP.
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Document Type: Research Article

Affiliations: Clinica Veterinaria Malpensa, Samarate—Varese, Italy and the Michael E. DeBakey Institute for Comparative Cardiovascular Studies, Texas A&M University, College Station, TX

Publication date: June 1, 2009

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