ABSTRACT
Abstract Purpose: To develop an experimental model of intestinal ischemia and obstruction followed by surgical resection of the damaged segment and reestablishment of intestinal transit, looking at bacterial translocation and survival. Methods: After anesthesia, Wistar rats was subject to laparotomy, intestinal ischemia and obstruction through an ileal ligature 1.5cm of ileum cecal valve; and the mesenteric vessels that irrigate upstream of the obstruction site to approximately 7 to 10 cm were ligated. Abdominal wall was closed. Three, six or twenty-four hours after, rats were subject to enterectomy followed by an end to end anastomosis. After 24h, mesenteric lymph nodes, liver, spleen and lung tissues were surgically removed. It was studied survival rate and bacterial translocation. GraphPadPrism statistical program was used. Results: Animals with intestinal ischemia and obstruction for 3 hours survived 24 hours after enterectomy; 6hx24h: survival was 70% at 24 hours; 24hx24h: survival was 70% and 40%, before and after enterectomy, respectively. Culture of tissues showed positivity on the 6hx24h and negativity on the 3hx24h. Conclusion: The model that best approached the clinic was the one of 6x24h of ischemia and intestinal obstruction, in which it was observed bacterial translocation and low mortality rate.
Subject(s)
Animals , Male , Bacterial Translocation/physiology , Disease Models, Animal , Mesenteric Ischemia/microbiology , Ileocecal Valve/blood supply , Ileocecal Valve/microbiology , Intestinal Obstruction/microbiology , Time Factors , Colony Count, Microbial , Survival Rate , Reproducibility of Results , Rats, Wistar , Mesenteric Ischemia/surgery , Mesenteric Ischemia/mortality , Gram-Negative Anaerobic Bacteria/isolation & purification , Gram-Negative Anaerobic Bacteria/physiology , Ileocecal Valve/surgery , Intestinal Obstruction/surgery , Intestinal Obstruction/mortality , LigationABSTRACT
INTRODUÇÃO: A cirurgia minimamente invasiva modificou a maneira de analisar e dissecar os tecidos nos procedimentos cirúrgicos. No entanto, a vantagem deste método é limitada na parede abdominal, devido à falta de desenvolvimento de tecnologias e movimentos articulados para seu emprego nesta região, exigindo a necessidade de investimentos e de tempo para a solidificação. Esta abordagem para reparo operatório da parede abdominal é baseada nos princípios Rives-Stoppa. TÉCNICA: Com o paciente em decúbito dorsal, uma pequena incisão supra-púbica é feita e o espaço pré-peritoneal é alcançado e insuflado. Após os trocárteres serem colocados, o saco peritoneal é dissecado e a cavidade abdominal é atingida acima da linha arqueada. As bainhas posteriores do músculo reto do abdome são liberadas e um grampeador linear é colocado em ambos os lados e acionado, restituindo a linha média e criando um espaço retromuscular, onde a tela é colocada e fixada. CONCLUSÃO: O método é viável, fácil de realizar e reprodutível, economizando tempo e com resultado funcional satisfatório.
INTRODUCTION: Minimally invasive videosurgery has modified anatomy dissection of diseases that are treated operatively. However, the benefit of this method has been delayed due to the lack of development of technologies and articulated movements for the abdominal wall, demanding the need for investments and time for solidification. This approach to repair the abdominal wall is based on the Rives-Stoppa principles. TECHNIQUE: With the patient in supine position, a small supra pubic incision is done and the pre-peritoneal space is achieved and inflated. After the trocars are placed, the peritoneal sac is dissected and the abdominal cavity is entered, above the arcuate line. The posterior rectus sheath is liberated and a linear stapler is placed in both sides and fired, creating a midline and a retromuscular space, where the mesh is placed and fixed. CONCLUSION: The method is feasible, easy to perform, reproducible, saves time and with a good functional result.
Subject(s)
Humans , Hernia, Abdominal/surgery , Herniorrhaphy/instrumentation , Herniorrhaphy/methods , Surgical StaplersABSTRACT
RACIONAL: Os defeitos da linha média podem ser congênitos ou adquiridos. Os procedimentos convencionais para correção desse defeito geralmente envolvem grandes incisões, com grandes descolamentos de pele e tecido celular subcutâneo. O uso da videocirurgia para a correção desses defeitos, ainda é controverso. OBJETIVOS: Realizar descrição inédita na literatura, mostrando a experiência inicial do uso da robótica nas reconstruções de linha média, associando a cirurgia minimamente invasiva à técnicas consagradas como Rives/Stoppa e separação de componentes. MÉTODOS: Foram operados cinco pacientes no mesmo hospital, pela mesma equipe, usando o sistema robótico da Vinci S. RESULTADOS: Foram três mulheres e dois homens, sem mortalidade na amostra. Duas pacientes foram reoperadas com hérnia pelo tunel entre os músculos retos do abdomen e aponeurose posterior, com fechamento dos mesmos na reoperação. CONCLUSÕES: O procedimento robótico para reconstrução da linha média mostrou-se factível e esteticamente aceitável. Tem a vantagem de seguir os princípios tradicionais aventados para a parede abdominal através de via minimamente invasiva.
BACKGROUND:The weakness of the linea alba can be caused by congenital and aquired factors. The conventional procedure to correct these imperfections generally involve large incisions with big detachments of the skin and subcutaneous tissue. The use of videosurgery for the repair of these weaknesses is still controversy. AIM: To describe a new procedure using robotics in the repair of the linea alba, associating minimally invasive tecniques by Rives/Stoppa and component separation tecniques. METHODS: Five patients undergone surgery in the same hospital, the same operating team and using the Da Vinci S. robotics equipment. RESULTS: Three women and two men undergone surgery, with no mortality. Two of these patients were re-operated due a recurrent hernia between muscle and posterior sheath that was closed in the re-access. CONCLUSIONS: The robotic procedure in the reconstruction of the linea alba showed itself feasible and aesthetically acceptable. Also, in advantage, the procedure follows the traditional principals reputable by experts of the abdominal wall trough minimally invasive surgery.
Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Hernia, Ventral/surgery , Herniorrhaphy/methods , Robotics , Video-Assisted SurgeryABSTRACT
RACIONAL: As técnicas minimamente invasivas associaram-se à cirurgia bariátrica propiciando redução na agressão aos órgãos e sistemas. A robótica é uma nova possibilidade dentro do conceito de mínima invasão. OBJETIVOS: Avaliar a experiência inicial da robótica em cirurgia da obesidade. MÉTODOS: Foram operados 27 pacientes no mesmo hospital, pela mesma equipe, com o mesmo sistema cirúrgico que foi Da Vinci S. RESULTADOS: Foram realizadas seis colocações de banda gástrica, cinco gastrectomias verticais e 16 septações gástricas com by-pass em Y-de-Roux. Ocorreu uma complicação importante e nenhum óbito. CONCLUSÕES: A via robótica mostrou-se segura durante experiência inicial, propiciando maior facilidade durante o procedimento em pacientes obesos.
BACKGROUND: Minimally invasive techniques were associated with bariatric surgery, leading to a decrease in aggression to the organs and systems. Robotic surgery is a new possibility within the concept of minimal invasion. AIM: To evaluate the initial experience of robotic surgery for obesity. METHODS: Twenty seven patients were operated in the same hospital, by the same team with the same surgical system, Da Vinci S. RESULTS: Were performed six gastric band placement , five sleeve gastrectomies and 16 gastric bypasses. There was one major complication and no death in this series. CONCLUSIONS: The robotic surgery for obesity surgery was safe during the initial experience.