Ex vivo model with bovine heart: a proposal for training microscopic dissection and vascularmicroanastomoses. / Modelo ex-vivo com coração bovino: proposta para treinamento de dissecção microscópica e de microanastomoses vasculares.

Training is a process that requires patience and constant practice. The execution of microscopic procedures is present in the day-to-day of several surgical specialties, but unfortunately experimental models are not easy to access in our environment. We propose a bovine heart model used by residents and young surgeons in the training of microscopic dissection and microanastomoses. It is described the assembly of this model, which can be performed individually and with accessible material to the surgical departments. Our experience in the preparation of the pieces, as well as tips for the process, are described in the text. The bovine myocardial model can be reproduced in any center with benches and surgical instruments. Low cost, fast preparation, and wide availability of the used tissue are among the advantages of this model. We consider the project useful in the training of surgical residents and young surgeons.

O treinamento é um processo que exige paciência e constante prática. A execução de procedimentos microscópicos está presente no dia a dia de diversas especialidades cirúrgicas, mas infelizmente modelos experimentais não são de fácil de acesso. Propomos um modelo com coração bovino usado por residentes e jovens cirurgiões no treinamento de dissecção microscópica e microanastomoses. É descrita a montagem deste modelo, que pode ser realizado de maneira individual e com material acessível aos departamentos cirúrgicos. Nossa experiência na elaboração das peças, assim como, dicas para o processo são descritas no texto. O modelo com miocardio bovino pode ser reproduzido em qualquer centro que disponha de bancadas e instrumental cirúrgico. Dentre as vantagens estão o baixo custo, rápido preparo e grande disponibilidade do tecido utilizado. Consideramos o projeto útil no treinamento de residentes cirúrgicos e jovens cirurgiões.

Modelo ex-vivo com coração bovino: proposta para treinamento de dissecção microscópica e de microanastomoses vasculares / Ex vivo model with bovine heart: a proposal for training microscopic dissection and vascularmicroanastomoses

RESUMO O treinamento é um processo que exige paciência e constante prática. A execução de procedimentos microscópicos está presente no dia a dia de diversas especialidades cirúrgicas, mas infelizmente modelos experimentais não são de fácil de acesso. Propomos um modelo com coração bovino usado por residentes e jovens cirurgiões no treinamento de dissecção microscópica e microanastomoses. É descrita a montagem deste modelo, que pode ser realizado de maneira individual e com material acessível aos departamentos cirúrgicos. Nossa experiência na elaboração das peças, assim como, dicas para o processo são descritas no texto. O modelo com miocardio bovino pode ser reproduzido em qualquer centro que disponha de bancadas e instrumental cirúrgico. Dentre as vantagens estão o baixo custo, rápido preparo e grande disponibilidade do tecido utilizado. Consideramos o projeto útil no treinamento de residentes cirúrgicos e jovens cirurgiões.

ABSTRACT Training is a process that requires patience and constant practice. The execution of microscopic procedures is present in the day-to-day of several surgical specialties, but unfortunately experimental models are not easy to access in our environment. We propose a bovine heart model used by residents and young surgeons in the training of microscopic dissection and microanastomoses. It is described the assembly of this model, which can be performed individually and with accessible material to the surgical departments. Our experience in the preparation of the pieces, as well as tips for the process, are described in the text. The bovine myocardial model can be reproduced in any center with benches and surgical instruments. Low cost, fast preparation, and wide availability of the used tissue are among the advantages of this model. We consider the project useful in the training of surgical residents and young surgeons.

Anatomical study of the pigs temporal bone by microdissection.

PURPOSE: Initial study of the pig`s temporal bone anatomy in order to enable a new experimental model in ear surgery. METHODS: Dissection of five temporal bones of Sus scrofa pigs obtained from UNIFESP - Surgical Skills Laboratory, removed with hole saw to avoid any injury and stored in formaldehyde 10% for better conservation. The microdissection in all five temporal bone had the following steps: inspection of the outer part, external canal and tympanic membrane microscopy, mastoidectomy, removal of external ear canal and tympanic membrane, inspection of ossicular chain and middle ear. RESULTS: Anatomically it is located at the same position than in humans. Some landmarks usually found in humans are missing. The tympanic membrane of the pig showed to be very similar to the human, separating the external and the middle ear. The middle ear`s appearance is very similar than in humans. The ossicular chain is almost exactly the same, as well as the facial nerve, showing the same relationship with the lateral semicircular canal. CONCLUSION: The temporal bone of the pigs can be used as an alternative for training in ear surgery, especially due the facility to find it and its similarity with temporal bone of the humans.