The Journal of small animal practice · 2026
Silicone stent placement for laryngeal diseases: a retrospective study of 14 dogs (2022-2025).
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David M, Giraud L, Dumont R, Gibert S, Dunié-Mérigot A, Boiron L, Sériot P, Jolivet F
Аннотация
OBJECTIVES: Surgical lateralisation is the gold standard for treating laryngeal paralysis in dogs; however, it remains invasive and expensive with possible life-threatening complications. This study evaluated the outcome of a non-surgical technique, laryngeal stent placement, for the treatment of laryngeal paralysis and other laryngeal conditions in dogs.
MATERIALS AND METHODS: A retrospective single-centre descriptive analysis of medical records was performed for dogs treated with a laryngeal silicone stent between 2022 and 2025.
RESULTS: Fourteen dogs were included. Laryngeal paralysis was the most common condition (n = 10). Other diagnoses included laryngeal collapse (n = 1), laryngeal granuloma (n = 1) and both collapse and granuloma (n = 2). Complete resolution of clinical signs was observed in all dogs following the procedure. Aspiration pneumonia was reported in four dogs. Two dogs underwent definitive stent removal after 3 weeks due to recurrent aspiration pneumonia or device infection. Six dogs died within the study period: two of the laryngeal paralysis group (death unrelated to stent placement) and all four dogs with other laryngeal conditions. Three of these deaths were stent-related with airway obstruction secondary to recurrent granuloma (n = 2) and aspiration pneumonia (n = 1). Median follow-up was 214 days (range 8 to 779 days). Seven dogs were still alive at the time of writing. Reported side effects included cough (n = 4), halitosis (n = 4), retching (n = 1) and dysphagia (n = 1).
CLINICAL SIGNIFICANCE: Laryngeal silicone stent appears well tolerated and offers a quick, cost-efficient and less invasive alternative for treating laryngeal paralysis in dogs when surgery is not possible or declined. The aspiration pneumonia rate (30%) in laryngeal paralysis cases was similar or higher than previous reports following arytenoid lateralisation. Complication rates appear higher in other laryngeal diseases, for which stenting might not be indicated.
MATERIALS AND METHODS: A retrospective single-centre descriptive analysis of medical records was performed for dogs treated with a laryngeal silicone stent between 2022 and 2025.
RESULTS: Fourteen dogs were included. Laryngeal paralysis was the most common condition (n = 10). Other diagnoses included laryngeal collapse (n = 1), laryngeal granuloma (n = 1) and both collapse and granuloma (n = 2). Complete resolution of clinical signs was observed in all dogs following the procedure. Aspiration pneumonia was reported in four dogs. Two dogs underwent definitive stent removal after 3 weeks due to recurrent aspiration pneumonia or device infection. Six dogs died within the study period: two of the laryngeal paralysis group (death unrelated to stent placement) and all four dogs with other laryngeal conditions. Three of these deaths were stent-related with airway obstruction secondary to recurrent granuloma (n = 2) and aspiration pneumonia (n = 1). Median follow-up was 214 days (range 8 to 779 days). Seven dogs were still alive at the time of writing. Reported side effects included cough (n = 4), halitosis (n = 4), retching (n = 1) and dysphagia (n = 1).
CLINICAL SIGNIFICANCE: Laryngeal silicone stent appears well tolerated and offers a quick, cost-efficient and less invasive alternative for treating laryngeal paralysis in dogs when surgery is not possible or declined. The aspiration pneumonia rate (30%) in laryngeal paralysis cases was similar or higher than previous reports following arytenoid lateralisation. Complication rates appear higher in other laryngeal diseases, for which stenting might not be indicated.