tailieunhanh - Báo cáo khoa học: "The Safety and efficacy of a new self-expandable intratracheal nitinol stent for the tracheal collapse in dogs"

Tuyển tập các báo cáo nghiên cứu khoa học quốc tế về bệnh thú y đề tài: The Safety and efficacy of a new self-expandable intratracheal nitinol stent for the tracheal collapse in dogs | J. Vet. Sci. 2008 9 1 91-93 JOURNAL OF Veterinary Science The Safety and efficacy of a new self-expandable intratracheal nitinol stent for the tracheal collapse in dogs Joon-young Kim Hyun-jung Han Hun-young Yun Bora Lee Ha-young Jang Ki-dong Eom Hee-myung Park Soon-wuk Jeong College of Veterinary Medicine Konkuk University Seoul 143-701 Korea To evaluate the potential utility of a self-expandable intratracheal nitinol stent with flared ends for the treatment of tracheal collapse in dogs endotracheal stenting therapy was performed under fluoroscopic guidance in four dogs with severe tracheal collapse. During the 4 to 7 month followup after stent implantation clinical signs including dyspnea and respiratory distress dramatically improved in all dogs. The radiographs showed that the implanted stents improved the tracheal collapse and there were no side effects such as collapse shortening or migration of the stents. In conclusion the self-expandable intratracheal nitinol stents provided adequate stability to the trachea and were effective for attenuating the clinical signs associated with severe tracheal collapse. Keywords dog nitinol stent tracheal collapse Introduction Tracheal collapse in dogs due to dorsoventrally dynamic narrowing of the tracheal lumen during the respiratory cycle mainly occurs in toy or miniature dog breeds. The clinical manifestations of this condition include a classic goose honk cough dyspnea cyanosis and syncope. The etiology of this condition is not completely known. Response to treatment with antitussives antibiotics bronchodilators corticosteroids sedatives and oxygen as well as other forms of medical management including weight reduction exercise restriction and a non-smoking environment usually is limited 7 . Surgical methods used to manage tracheal collapse include the application of an extraluminal total ring or spiral prostheses 1 2 6 8 . Although the recovery rate following extraluminal stabilization is about 75 to 85 this procedure