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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Punção da veia azigos guiada por video-toracoscopia como via alternativa de acesso vascular para hemodialise : estudo experimental em suinos / Azygos venipuncture guided by thoracoscopy as an option to vascular access to hemodialysis : experimental study in porcine model

Rielli, Glauber 14 August 2018 (has links)
Orientador: Fabio Husemann Menezes / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas / Made available in DSpace on 2018-08-14T03:12:56Z (GMT). No. of bitstreams: 1 Rielli_Glauber.pdf: 567843 bytes, checksum: 4d042894d00f11bcc831e52dc91eb94b (MD5) Previous issue date: 2009 / Resumo: Objetivo: Avaliar em suínos a viabilidade, morbidade e mortalidade imediata do acesso vascular alternativo para hemodiálise através da punção da veia ázigos, guiada por vídeo-toracoscopia. Material e métodos: Oito suínos foram submetidos a punção da veia ázigos e posterior introdução do cateter de hemodiálise na posição central através de vídeo-toracoscopia em hemitórax esquerdo, com ligadura distal e reparo proximal da mesma com dupla laçada de fio de silicone para hemostasia para quando da retirada do cateter. Os animais foram monitorizados através de dados hematimétricos, gasometria, pressão invasiva e sacrificados ao final. Resultados: Em cinco animais o procedimento transcorreu semintercorrências, com fluxo adequado pelo cateter, sem hemorragia, em um tempo médio de duas horas. Em dois animais houve a necessidade de dissecção direta da veia ázigos através da conversão para toracotomia devido a perda do controle hemostático. Em um destes animais houve lesão do parênquima pulmonar sem comprometer a ventilação. Em um animal a veia não foi localizada por provável lesão na inserção do trocar. Não ocorreram óbitos durante o procedimento. Conclusão: A técnica se mostrou viável, mas com complicações técnicas relacionadas ao treinamento, tendo o potencial de ser utilizado como acesso venoso alternativo para hemodiálise. Outros estudos podem validar estes achados com o intuito de se utilizar em humanos sem acesso vascular para hemodiálise / Abstract: Purpose: The purpose of this acute experiment is to evaluate in the pigs the feasibility and immediate complications associated with the transpleural cannulation of the azygos vein performed under video-thoracoscopy. Material and Methods: Eight female pigs were submitted to central venous cannulation of the azygos vein guided by vodeo-thoracoscopy of the left side of the thorax. The azygos vein was ligated distally and secured proximally with a double silicone strand loop, intended to be used as bleeding control in case the catheter is withdrawn. Invasive blood pressure with hematimetric and gasometrical data was recorded during the procedure. All animals were sacrificed after the experiment. Results: All animals survived the experiment. There were five successful cannulations. There were two conversions to thoracotomy because of bleeding which, even if minor, hindered the view of the operation field and were successfully converted to thoracomy with direct cannulation of the vein. There was one lung injury caused by a retractor. There was one termination of the procedure because the azygos vein was not found probably because of a lesion during the trocar insertion. Conclusion: In conclusion, the video-thoracoscopic technique was found to be feasible with complications related to technical training and could become an alternative access in patients with unsuitable conventional central venous access. Further investigation could validate these findings / Universidade Estadual de Campi / Ciencias Medicas / Mestre em Cirurgia

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