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New technique for intrathoracic implantation of extraluminal spiral prostheses in the trachea

Gomes, Hércules Lúcio; Denevitz, Rodiney Pinheiro; Morales, Isabella Cristina; Santos, Scarlath Ohana Penna dos; Igreja Júnior, Haroldo José Siqueira da; Santos Júnior, Marcelo Borges dos; Peixoto, Tainara Micaele Bezerra; Scheffer, Jussara Peters; Antunes, Fernanda; Oliveira, André Lacerda de Abreu.
Acta sci. vet. (Online); 49: Pub. 1791, Mar. 8, 2021. tab
Artigo em Inglês | VETINDEX | ID: vti-761942


Background: Extraluminal surgical procedures for intrathoracic tracheal collapse in dogs are not routinely performed. The patients are normally treated with different drugs or by intraluminal stents. However, in more severe cases, drug treatment does not always have good outcomes, and intraluminal prostheses can be correlated to several postoperative problems. In order to obtain better results, we aimed to develop a surgical technique for implantation of a new extraluminal helical prosthesis in the thoracic segment of the trachea through cervical access, associated with pneumatic mediastinoscopy for certification of the technique and minimization of possible complications. Materials, Methods & Results: Seven canine corpses (CCs) from non-traumatic death, weighing between 2 and 7 kg, were used. A ventral cervical approach to the trachea was associated with blunt mediastinal dissection. Trans cervical pneumatic mediastinoscopy was used for evaluation of the dissection and location of the implant. These were compared with the necropsy findings by the exact Wilcoxon two-sample test, with P < 0.05. The results of necropsy and mediastinoscopy did not present significant differences at P < 0.05. During the examinations, the presence of some mediastinal visceral le-sions caused by the prosthesis, the integrity of the mediastinum and possible lesions to RLN and blood vessels (BV) were analyzed. We also investigated the location of the distal part of the prosthesis in the thoracic segment of the trachea and its dissection. To evaluate the technique, statistical comparison was made between mediastinoscopy and necropsy find-ings. The data were compared by the Wilcoxon test at 5% probability. The tracheas of all CCs were efficiently dissected, but in some cases problems that can happen during the procedure were noticed. This was checked by mediastinoscopy and confirmed by necropsy. The median of the scores was...(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1