Chennai veterinarians train in stent procedure for dogs with collapsed windpipes

Veterinarians from across India have received practical training in Chennai on placing tracheal stents in dogs suffering from collapsed windpipes and strictures. The programme was organised on Sunday by the Chennai Small Animal Veterinarians Association in collaboration with Tamil Nadu Veterinary and Animal Sciences University at Madras Veterinary College. The procedure is intended mainly for dogs that do not respond adequately to clinical management.

Dr G.R. Baranidharan, president of the association, said persistent “goose honk” coughing was one symptom associated with the condition. He and Dr G.

Vijayakumar, head of clinics at the college, demonstrated the procedure on cadavers and live animals using an endoscope. The college has a fluoroscopy unit, which provides real-time X-ray imaging. Organisers said the equipment helps veterinarians assess the trachea and identify abnormalities before selecting and deploying a stent in the affected section of the windpipe.

Dr Vijayakumar said tracheal collapse and strictures were common in brachycephalic breeds, including Pugs, Shih Tzus and Boxers. He attributed breathing difficulties in these breeds to heavy inbreeding. Animal-specific stents are available in Europe and the United States, but India currently uses devices manufactured for people.

Dr Baranidharan said fluoroscopic studies could help determine which stent was suitable for each dog. A stent costs about ₹60,000, according to Dr Baranidharan, although devices were being placed free of charge during the training programme. Dr Vijayakumar said government support, pet insurance and subsidies could improve access.

The veterinary department currently offers the facility. Organisers said combining bronchoscopy, fluoroscopy and stent-deployment equipment could improve affected dogs’ longevity and quality of life.