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New Statistics from our latest project on collapsing
trachea
Drs. Durant and Sura at University of Tennessee College of Veterinary
Medicine reviewed records from 18 dogs that underwent Nitinol stent
placement ("Vet Stent - Trachea"). This is a newer type of stent that we
hope will be more durable and appropriately sized for dogs compared with
the human stents. Yorkies were the most common breed affected (61%) and
most were middle age at the time of onset, although some had signs as young
as 3 years of age or as old as 13 years. Outcomes were excellent in 13%
(no clinical signs at all), good in 27% (infrequent coughing), and fair in
47% (frequent clinical signs and need for regular medications and
treatments). Complications included stent breakage (11%) and pneumonia
(14%). Mortality rate was 13%; two dogs died 1-2 months after stent
placement because of acute respiratory distress. Follow-up was available
for 13 of the surviving dogs; all were alive 6 months to 2 years after
stent placement. The nitinol stent helps relieve clinical signs in dogs
with tracheal collapse and is unlikely to break. Because stents only work
in the trachea, owners should expect that dogs with bronchial collapse will
continue to have coughing and other signs of respiratory problems and may
require steroids and cough suppressants for life.
Progress report on Collapsing Trachea Study
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