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      Ação do pneumoperitônio com dióxido de carbono na translocação bacteriana em ratos

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          Abstract

          Objetivo: Investigar a translocação bacteriana decorrente da ação do pneumoperitônio com CO2 em ratos normais e em ratos com colite induzida. Métodos: Utilizaram-se 60 ratos distribuídos em seis grupos de 10 animais. No grupo simulação realizou-se laparotomia, manipulação de órgãos abdominais e síntese da parede; os dois grupos pneumoperitônio foram submetidos a pneumoperitônio por uma e três horas, respectivamente; no grupo colite, foi induzida colite e realizada laparotomia, manipulação de órgãos abdominais e síntese da parede; nos dois grupos colite pneumoperitônio induziu-se colite mais pneumoperitônio por uma e três horas, respectivamente. Sacrificados os animais, foram feitas as coletas dos rins, baço, fígado e linfonodos mesentéricos. Nos animais submetidos a colite induzida, foram ressecados 2cm de cólon para análise histológica. Nos órgãos ressecados pesquisou-se a presença de Escherichia coli e Enterococcus faecallis para verificar a translocação bacteriana. Resultados: Não ocorreram óbitos nos grupos estudados. Não houve diferença estatisticamente significante nos grupos de animais submetidos a colite. A ocorrência de translocação bacteriana nos diferentes órgãos independe do gênero da bactéria. Não há incremento da translocação bacteriana com relação a duração de pneumoperitônio (1 e 3h) tanto em ratos normais como nos submetidos a colite induzida. Conclusão: O pneumoperitônio induz a translocação bacteriana em ratos normais e a incrementa em ratos submetidos à colite.

          Translated abstract

          Objective: This study has the purpose of determining if pneumoperitoneum with CO2 develops bacterial translocation in normal rats and in rats submitted to induced colitis. Methods: 60 rats, divided into six groups of 10 animals, were utilized. In the sham group, laparotomy, abdominal organ manipulation, and suture of the wall were performed; the two pneumoperitoneum groups were submitted to pneumoperitoneum for one and three hours, respectively. In the colitis group, colitis was induced, laparotomy, abdominal organ manipulation and suture of the wall were performed. In the two colitis pneumoperitoneum groups colitis was induced plus pneumoperitoneum for one and three hours, respectively. After the animals were sacrificed, kidneys, spleens, livers, and mesenteric lymph nodes were collected. In the animals submitted to induced colitis, 2 cm of colon were resected for histologic analysis. The resected organs were analyzed for the presence of E. coli and Enterococcus faecallis in order to check bacterial translocation. Results: No statistic difference was found in the groups submitted to colitis. The bacterial translocation is no dependent on the genus of bacteria. There is no increase in bacterial translocation due to the duration of pneumoperitoneum (one and three hours) either in normal rats or in those submitted to induced colitis. Conclusion: Pneumoperitoneum induces bacterial translocation in normal rats and increases it in rats submitted to induced colitis.

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          Most cited references17

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          Experimental Production of Diffuse Colitis in Rats

          Diffuse, topical application of dilute acetic acid to the serosal surface of rat colon, or standardized intraluminal (per rectum) instillation induced a reproducible, diffuse colitis in a dose-response manner. These lesions were reproduced with 100% reliability and were evaluated up to 60 days when healing occurred. Histopathological features of this chemically induced colitis were diffuse ulceration of the distal colon, occurrence of pseudopolyp-like structures, alterations in crypt depth and mucus secretion, and a transmural, nonspecific inflammatory response.
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            Laparoscopic cholecystectomy: the state of the art. A report on 700 consecutive cases.

            Born in secret in 1987, developed in an atmosphere of skepticism and even hostility throughout 1988, the laparoscopic cholecystectomy triumphed in 1989-90 and caused a veritable revolution in the world of general surgery. The 700 consecutive cases that we report here reflect the spirit of these various periods. From prudently restrictive, our indications widened to include 90% of all patients with gallbladder lithiasis. Sclero-atrophic gallbladders constitute the greatest challenge for endoscopic maneuvers. This group of patients should be treated by the most experienced operators only. The figures for mortality (0.1%) and complications (3%) are very comparable and even better than those for traditional cholecystectomy. The quality of recovery is infinitely better; there is absence of pain, a short period of hospitalization, return to normal physical activity within 10 days, rapid return to work, and total preservation of the abdominal muscles for participation in sports activities. All these advantages are assets of the laparoscopic cholecystectomy which are not available to the 6% of patients for whom an intra-operative conversion to open surgery is necessary. These patients recover within the conditions of a traditional cholecystectomy which are far from being poor. The large multicenter studies, such as those carried out in France and Belgium recently involving 3,708 patients, arrive at identical conclusions. The laparoscopic cholecystectomy is on its way to becoming the gold standard of treatment for gallbladder lithiasis. It is the first successful step towards surgical techniques of the 21st century which will be carried out inside the musculo-cutaneous envelope of the unopened human body.
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              Gasless Laparoscopy and Conventional Instruments

              R Smith (1993)
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                acb
                Acta Cirurgica Brasileira
                Acta Cir. Bras.
                Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (São Paulo )
                1678-2674
                May 2002
                : 17
                : 3
                : 181-188
                Affiliations
                [1 ] Faculdade Evangélica do Paraná Brazil
                [2 ] Universidade Federal do Paraná Brazil
                Article
                S0102-86502002000300006
                10.1590/S0102-86502002000300006
                8a072249-8607-4ca5-9767-807f32331393

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0102-8650&lng=en
                Categories
                SURGERY

                Surgery
                Pneumoperitoneum,Bacterial translocation,Carbon dioxide,Rats,Pneumoperitônio,Translocação bacteriana,Dióxido de carbono,Ratos

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