Análise experimental de três métodos de aerostasia bronquial

• Autor(a) principal: ANGELIM, Jacqueline Loureiro
• Data de Publicação: 2012
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRPE
• Texto Completo: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5681
• topic: Braçadeira; Oclusão bronquial; Cianoacrilato; Bronchial occlusion; Brassard; Cyanoacrylate; CIENCIAS AGRARIAS::MEDICINA VETERINARIA

The pulmonary lobectomy technique can be used on the lung cancer, lung lobe torsion, pulmonary laceration and lung abscesses treatment and among the postoperative problems the bronchial stump dehiscence, prolonged air leak and development of bronchopleural fistula are highlighted. These problems are usually resulting from malocclusion of the bronchial stump and most of the times the treatment for those problems consists on a new surgical procedure to reopen the chest cavity. The ain of the present paper was to evaluate the efficiency of n-butyl cyanoacrylate and nylon brassard as methods for occlusion of the bronchial stump and the aerostasia maintenance, comparing it with the manual suture technique on an experimental model using pig tracheobronchial trees, submitted to increasing levels of positive intrabrochial pressure. 30 pig tracheobronchial trees were used, where eight lobar bronchi from each piece were selected for studying, four of 10 mm and four of 5 mm. Thereafter, the trees and their bronchi were equally distributed into three experimental groups: Suture Group (SG) – manual suture with simple isolated stitches, using nº 2,0 surgical nylon; Cyanoacrylate Group (CG) - n-butyl Cyanoacrylate and Brassard Group (BG) – nylon brassards. After the bronchial stumps occlusion, the pieces were immersed in water and the “tire fitter test” was made placing the positive intrabrochial pressure at 30 cm of H2O for five minutes, and then gradually increased to a pressure at 100 cm of H2O. Leaks with a percentage of 1, 25% (1/80) were observed on groups SG and BG, when respectively submitted to a pressure at 30 cm of H2O and 100 cm of H2O. There were no leaks in any bronchial stumps on group CG. There were no statistically significant differences among the three treatments. It was concluded that, both n-butyl Cyanoacrylate such as nylon brassard, as also the manual suture, are effective methods for implementation and maintenance of bronchial aerostasia.