ABSTRACT Purpose: To evaluate the tissue content of neutral and acidic mucins, sulfomucins and sialomucins in colonic glands devoid of intestinal transit after enemas containing sucralfate and n-acetylcysteine alone or in combination. Methods: Sixty-four rats underwent intestinal transit bypass. A colonic segment was collected to compose the white group (without intervention). After derivation, the animals were divided into two groups according to whether enemas were performed daily for two or four weeks. Each group was subdivided into four subgroups according to the substance used: control group: saline 0.9%; sucralfate group (SCF): SCF 2 g/kg/day; n-acetylcysteine group (NAC): NAC 100 mg/kg/day; and SCF+NAC group: SCF 2 g/kg/day + NAC 100 mg/kg/day.Neutral and acidic mucins were stained by periodic acid-Schiff and alcian-blue techniques, respectively. The distinction between sulfomucins and sialomucin was made by the high alcian-blue iron diamine technique. The content of mucins in the colonic glands was measured by computerized morphometry. The inflammatory score was assessed using a validated scale. The results between the groups were compared by the Mann-Whitney’s test, while the variation according to time by the Kruskal-Wallis’ test (Dunn’s post-test). A significance level of 5% was adopted. Results: There was reduction in the inflammatory score regardless of the application of isolated or associated substances. Intervention with SCF+NAC increased the content of all mucin subtypes regardless of intervention time. Conclusions: The application of SCF+NAC reduced the inflammatory process of the colonic mucosa and increased the content of different types of mucins in the colonic glands of segments excluded from fecal transit. Purpose nacetylcysteine n acetylcysteine combination Methods Sixtyfour Sixty bypass without intervention. . intervention) derivation weeks used 0.9% 09 0 9 (SCF) gkgday g kg day (NAC) 10 mg/kg/day mgkgday mg SCFNAC mgkgdayNeutral Neutral acidSchiff acid Schiff alcianblue alcian blue techniques respectively technique morphometry scale MannWhitneys Mann Whitney s KruskalWallis Kruskal Wallis Kruskal-Wallis Dunns Dunn posttest. posttest post post-test) 5 adopted Results substances Conclusions 0.9 (SCF (NAC 1 post-test 0.

RESUMO RACIONAL: Desde sua introdução, a hemorroidopexia por grampeamento tem sido cada vez mais indicada no manuseio da doença hemorroidária. OBJETIVOS: Nosso objetivo primário foi avaliar a incidência de doença recidivada que requeira tratamento cirúrgico. Numa análise secundária, também comparamos dor, complicações e satisfação do paciente após uma operação ajustada a cada caso. MÉTODOS: Foram revistos retrospectivamente 196 pacientes (103 homens e 93 mulheres) com idade média de 47,9 anos (17–78) submetidos a hemorroidopexia mecânica isoladamente (STG; n=65) ou cirurgia combinada (CSG; n=131, hemorroidopexia por grampeamento com ressecção). RESULTADOS: Complicações foram detectadas 11 (5,6%) pacientes (4,6% para STG vs. 6,1% para CSG; p=0,95). Ao mesmo tempo, recidiva de sintomas (13,8% vs. 8,4%; p=034), reoperações por complicações (3,1% vs. 3,0%; p=1,0) ou por recidiva (6,1 vs. 4,6%; p=1,0) não foram diferentes entre os dois grupos. Pacientes com grau IV foram mais comumente manuseados com grampeamento e ressecção simultâneos (63% vs. 49,5%), mas nenhum deles apresentou recidiva ou necessitou reoperação. O escore médio de dor na primeira semana foi maior no grupo CSG (0,8 vs. 1,7). Após seguimento de 24,9 meses, os índices de satisfação foram similares (8,6; p=0,8). CONCLUSÕES: Sintomas de recidiva foram observados em 10%, requerendo cirurgia em aproximadamente metade dos doentes. Embora a associação de técnicas aumente os escores de dor, um procedimento sob medida baseado em critérios ampliados de indicação e técnicas combinadas parece ser uma alternativa efetiva e segura, com menor recidiva em pacientes portadores de doença hemorroidária mais avançada. Os escores de satisfação após hemorroidopexia são altos.

ABSTRACT BACKGROUND: Since its introduction, stapled hemorrhoidopexy has been increasingly indicated in the management of hemorrhoidal disease. AIM: Our primary end point was to evaluate the incidence of recurrent disease requiring another surgical intervention. On a secondary analysis, we also compared pain, complications, and patient's satisfaction after a tailored surgery. METHODS: We retrospectively reviewed 196 patients (103 males and 93 females) with a median age of 47.9 years (range, 17–78) who were undergoing stapled hemorrhoidopexy alone (STG; n=65) or combined surgery (CSG; n=131, stapled hemorrhoidopexy associated with resection). RESULTS: Complications were detected in 11 (5.6%) patients (4.6% for STG vs. 6.1% for CSG; p=0.95). At the same time, symptoms recurrence (13.8% vs. 8.4%; p=034), reoperation rate for complications (3.1% vs. 3.0%; p=1.0), and reoperation rate for recurrence (6.1% vs. 4.6%; p=1.0) were not different among groups. Grade IV patients were more commonly managed with simultaneous stapling and resection (63% vs. 49.5%), but none of them presented symptoms recurrence nor need reoperation due to recurrence. Median pain score during the first week was higher in CSG patients (0.8 vs. 1.7). After a follow-up of 24.9 months, satisfaction scores were similar (8.6; p=0.8). CONCLUSION: Recurrent symptoms were observed in 10% of patients, requiring surgery in approximately half of them. Even though the association of techniques may raise pain scores, a tailored approach based on amplified indication criteria and combined techniques seems to be an effective and safe alternative, with decreased relapse rates in patients suffering from more advanced hemorrhoidal disease. Satisfaction scores after hemorrhoidopexy are high.

ABSTRACT BACKGROUND: Solid pseudopapillary neoplasm of the pancreas is an uncommon pancreatic tumor, which is more frequent in young adult women. Familial adenomatous polyposis is a genetic condition associated with colorectal cancer that also increases the risk of developing other tumors as well. AIM: The aim of this study was to discuss the association of familial adenomatous polyposis with solid pseudopapillary neoplasm of the pancreas, which is very rare. METHODS: We report two cases of patients with familial adenomatous polyposis who developed solid pseudopapillary neoplasm of the pancreas of the pancreas and were submitted to laparoscopic pancreatic resections with splenic preservation (one male and one female). RESULTS: ß-catenin and Wnt signaling pathways have been found to play an important role in the tumorigenesis of solid pseudopapillary neoplasm of the pancreas, and their constitutive activation due to adenomatous polyposis coli gene inactivation in familial adenomatous polyposis may explain the relationship between familial adenomatous polyposis and solid pseudopapillary neoplasm of the pancreas. CONCLUSION: Colonic resection must be prioritized, and a minimally invasive approach is preferred to minimize the risk of developing desmoid tumor. Pancreatic resection usually does not require extensive lymphadenectomy for solid pseudopapillary neoplasm of the pancreas, and splenic preservation is feasible. BACKGROUND tumor women well AIM rare METHODS female. female . female) RESULTS ßcatenin ß catenin CONCLUSION prioritized feasible

RESUMO RACIONAL: A neoplasia sólida pseudopapilífera do pâncreas é um tumor pancreático incomum, mais frequente em mulheres jovens. A polipose adenomatosa familiar, por sua vez, é uma condição genética associada a câncer colorretal e que também aumenta o risco de desenvolvimento de outros tumores. OBJETIVOS: Discutir a associação entre polipose adenomatosa familiar e neoplasia sólida pseudopapilífera, que é bastante rara. MÉTODOS: Reportamos dois casos de pacientes com polipose adenomatosa familiar, um homem e uma mulher, que desenvolveram neoplasia sólida pseudopapilífera do pâncreas e foram submetidos a ressecção laparoscópica com preservação esplênica. RESULTADOS: As vias de sinalização da ß-catenina e Wnt tem um papel importante na tumorigênese da neoplasia sólida pseudopapilífera, e sua ativação constitutiva devido a inativação do gene adenomatous polyposis coli na polipose adenomatosa familiar pode explicar a relação entre polipose adenomatosa familiar e neoplasia sólida pseudopapilífera. CONCLUSÕES: A ressecção do cólon deve ser priorizada, com preferência pela abordagem minimamente invasiva para minimizar o risco de desenvolvimento de tumor desmoide. A ressecção pancreática geralmente não requer linfadenectomia extensa para neoplasia sólida pseudopapilífera, portanto, a preservação esplênica é factível. RACIONAL incomum jovens vez tumores OBJETIVOS rara MÉTODOS mulher RESULTADOS ßcatenina ß catenina CONCLUSÕES priorizada desmoide portanto factível

ABSTRACT Purpose: To evaluate the effects of sucralfate enemas in tissue contents of E-cadherin and ?-catenin in an experimental diversion colitis. Methods: Thirty-six male Wistar rats were submitted to a proximal colostomy and a distal mucous fistula. They were allocated into three groups: first group received daily saline enemas (2 mL/day) and the two other groups daily enemas with sucralfate at dosage of 1 or 2 g/kg/day, respectively. Six animals of each group were euthanized after two weeks and six animals after four weeks. The inflammation of the excluded mucosa was evaluated by histological analysis. The oxidative damage was quantified by measurement of malondialdehyde tissue levels. The expression of E-cadherin and ?-catenin was identified by immunohistochemistry, and its contents were quantified by computer-assisted image analysis. Results: Sucralfate enemas reduced inflammation in animals subjected to treatment with 2 g/kg/day by four weeks, and the levels of oxidative damage in mucosa without fecal stream irrespective of concentration and time of intervention. E-cadherin and ?-catenin content increased in segments without fecal stream in those animals subjected to treatment with sucralfate. Conclusions: Sucralfate reduces the inflammation and oxidative stress and increases the tissue content of E-cadherin and ?-catenin in colonic mucosa devoid to the fecal stream.

RESUMO - RACIONAL: O estresse oxidativo é um dos principais mecanismos associados à ruptura dos mecanismos de defesa que formam a barreira epitelial cólica e reduz o conteúdo tecidual das proteínas claudina-3 e ocludina principais constituintes das junções de oclusão intercelulares. O sucralfato, possui atividade antioxidante e tem sido usado para tratar diferentes formas de colite. OBJETIVO: Mensurar o conteúdo tecidual de claudina-3 e ocludina da mucosa do cólon sem trânsito fecal, submetido à intervenção com sucralfato. MÉTODO: Trinta e seis ratos foram submetidos à colostomia do cólon esquerdo e fístula mucosa distal. Os animais foram divididos em dois grupos de acordo com a eutanásia ser realizada duas ou quatro semanas após a intervenção. Cada grupo foi dividido em três subgrupos de acordo com o tipo de intervenção realizada diariamente: solução salina isolada; sucralfato a 1 g/kg/dia ou sucralfato a 2g/kg/dia. A colite foi diagnosticada por análise histológica adotando escala de validação prévia. A expressão tecidual de ambas as proteínas foi identificada por imunoistoquímica. O conteúdo das proteínas foi quantificado por análise de imagem assistida por computador. RESULTADOS: O escore inflamatório foi maior nos segmentos cólicos sem trânsito fecal e os enemas com sucralfato reduziram o escore inflamatório nesses segmentos, principalmente nos animais submetidos à intervenção com sucralfato em maior concentração e por período mais longo de intervenção. Houve aumento no conteúdo tecidual das proteínas claudina-3 e ocludina, relacionado com a concentração de sucralfato. O conteúdo tecidual de ambas as proteínas não se modificou com a duração da intervenção. CONCLUSÃO: Enemas com sucralfato reduzem a inflamação e aumentam o conteúdo tecidual de claudina-3 e ocludina na mucosa cólica sem trânsito intestinal.

ABSTRACT - BACKGROUND: Oxidative stress is one of the main mechanisms associated with the rupture of the defense mechanisms of the colonic epithelial barrier; it reduces the tissue content of the claudin-3 and occludin proteins, which are the main constituents of intercellular tight junctions. Sucralfate (SCF) has antioxidant activity and has been used to treat different forms of colitis. AIM: This study aimed to measure the tissue claudin-3 and occludin content of the colon mucosa without fecal transit, subjected to intervention with SCF. METHODS: Thirty-six rats were subjected to left colon colostomy and distal mucous fistula. They were divided into two groups according to euthanasia that was performed 2 or 4 weeks after the intervention. Each group was divided into three subgroups according to the enema applied daily: saline alone, SCF at 1 g/kg/day, or SCF at 2 g/kg/day. Colitis was diagnosed by the histological analysis adopting the previous validate scale. The tissue expression of both proteins was identified by immunohistochemical technique. The content of proteins was quantified by computer-assisted image analysis. RESULTS: The inflammatory score was high in colonic segments without fecal transit, and enemas with SCF reduced the inflammatory score in these segments, mainly in those animals submitted to intervention with SCF in greater concentration and for a longer period of intervention. There was an increase in tissue content of claudin-3 and occludin, related to SCF concentration. The tissue content of both proteins was not related to the intervention time. CONCLUSION: Enemas with SCF reduced the inflammation and increased the tissue content of claudin-3 and occludin in colonic mucosa without fecal stream.

Abstract Purpose: To evaluate the effects of infliximab on the inflammation of the colonic mucosa devoid from fecal stream. Methods: Twenty-four rats were submitted to a Hartmann's procedure. They remained for 12 weeks with the fecal derivation to development of diversion colitis on excluded colorectal stump. After this period, they were divided into 3 groups: one group received intervention with saline (2.0 mL / week), other group infliximab at doses of 5 mg/kg/week and the other 10 mg/kg/week for five consecutively weeks. Concluded the intervention period, the animals were euthanized to remove colon segments with and without fecal stream. Colitis was diagnosed by histological analysis and the degree of inflammation by validated score. The neutrophilic infiltrate was evaluated by tissue expression of myeloperoxidase identified by immunohistochemical. The tissue content of myeloperoxidase was measured by computer-assisted image analysis. Results: The inflammatory score was high in colonic segments without fecal stream. The intervention with infliximab reduced the inflammatory score in excluded colonic segments. The content of myeloperoxidase was reduced in colonic segments of animals treated with infliximab mainly in high concentrations. Conclusion: Intervention with infliximab reduced the inflammation and the neutrophil infiltrate in colonic segments devoid of the fecal stream.

RESUMO Objetivo: Verificar se a aplicação de clisteres com extrato oleoso de curcumina preserva o conteúdo de mucinas nas glândulas da mucosa cólica sem trânsito intestinal. Método: Trinta e seis ratos Wistar foram submetidos à derivação intestinal por colostomia proximal e fístula mucosa distal. Os animais foram subdivididos em três grupos, segundo receberem clisteres com soro fisiológico 0,9%, extrato oleoso de curcumina nas concentrações de 50 mg/kg/dia ou 200 mg/kg/dia. Após duas ou quatro semanas de intervenção foram removidos os segmentos cólicos irrigados. As mucinas neutras e ácidas foram identificadas pelas técnicas do PAS e Alcian-Blue, respectivamente. O conteúdo tecidual de ambos os subtipos de mucinas foi mensurado por morfometria computadorizada. Utilizou-se teste de Mann-Whitney para análise dos resultados adotando-se nível de significância de 5% (p ≤ 0,05). Resultados: Houve aumento no conteúdo de mucinas neutras nos animais tratados com curcumina na concentração de 50 mg/kg/dia por quatro semanas, enquanto nos tratados com 200 mg/kg/dia houve aumento independente do tempo de intervenção. O conteúdo de mucinas ácidas aumentou nos animais tratados com 200 mg/kg/dia independente do tempo de intervenção, enquanto nos tratados com 50 mg/kg/dia encontrou-se aumento apenas após quatro semanas. Conclusão: Clisteres com curcumina preservam o conteúdo de mucinas neutras e ácidas no epitélio cólico sem trânsito intestinal.

ABSTRACT Purpose: To verify if the application of enemas containing oily extracts of curcumin preserves the tissue content of mucins in the glands of the colonic mucosa without fecal stream. Method: Thirty-six Wistar rats were submitted to diversion of the fecal stream by proximal colostomy and distal mucous fistula. The animals were subdivided into three groups, and accordingly received enemas with saline and oily extract of curcumin at concentrations of 50 mg/kg/day or 200 mg/kg/day. After two or four weeks of intervention, the irrigated colic segments were removed. Neutral and acidic mucins were identified by Periodic-acid Schiff and Alcian-Blue techniques, respectively. The content of both mucin subtypes was measured by computerized morphometry. Mann-Whitney test was used to analyze the results, adopting a significance level of 5% (p ≤ 0.05). Results: There was an increase in the tissue content of neutral mucins in animals treated with curcumin at a concentration of 50 mg/kg/day for four weeks, whereas in the group treated with 200 mg/kg/day there was an increase independent of the time of intervention. The content of acidic mucins increased in animals treated with 200 mg/kg/day regardless of the intervention time, whereas in those treated with 50 mg/kg/day an increase was observed only after four weeks. Conclusion: Enemas with curcumin preserve the content of neutral and acidic mucins in the colonic epithelium without fecal stream.

RESUMO Racional: O câncer colorretal é o terceiro câncer mais comum no mundo. No Brasil é a principal causa no trato gastrointestinal. Objetivo: Avaliar os fatores de riscos pré, peri e pós-operatório para recorrência e sobrevida global de pacientes com câncer de cólon esquerdo operado durante um período de dez anos. Métodos: Os pacientes com câncer de cólon esquerdo operados foram retrospectivamente avaliados. Os seguintes fatores foram estudados: gênero, idade, localização do tumor, estádio T, número de linfonodos, estágio N, estágio M, tipo histológico e diferenciação tumoral. Foi analisada a influência desses fatores na sobrevida global de cinco anos. Resultados: 173 pacientes foram submetidos à colectomia para câncer de cólon esquerdo. O gênero masculino predominou com 50,9%. A média de idade foi de 60,8 anos. Quinze (8,7%) tumores foram localizados no ângulo esplênico, 126 (72,8%) no sigmóide e 32 (18,5%) e no descendente. A média do tempo de internação foi de sete dias. A sobrevida média foi de 47,5 meses. Aos 60 meses sete doentes (4%) perderam o seguimento, 38 (21,9%) faleceram e 135 (78%) estavam vivos. O tempo de sobrevida global foi de 48 meses. Conclusão: Os estádios avançados (T3-T4, N e M+) foram os únicos fatores associados à menor sobrevida em longo prazo em câncer de cólon esquerdo.

ABSTRACT Background: Colorectal cancer is the third most common cancer in the world. In Brazil, it is the leading cause of cancer in the gastrointestinal tract. Aim: To evaluate the preoperative, perioperative, and postoperative risk factors for recurrence and overall survival of patients with left colon cancer operated during a ten-year period. Methods: Patients with left colon cancer surgically treated underwent clinical preoperative workout and cancer staging. The following factors were studied: gender, age, tumor location, T stage, lymph node yield, N stage, M stage, histological type, and tumor differentiation. It was analyzed the influence in five-year overall survival. Results: A total of 173 patients underwent left colectomy for colon cancer. There was a slight predominance of male gender with 50.9%. The mean age was 60.8 years old. Fifteen (8.7%) tumors were located at splenic flexure, 126 (72.8%) at sigmoid colon, and 32 (18.5%) at descending colon. The median length of hospital stay was seven days. Mean survival was 47.5 months. At 60 months seven patients (4%) lost follow-up, 38 patients (21.9%) deceased and 135 patients (78%) were alive. Overall survival time was 48 months. Conclusion: Advanced stages (T3-T4, N+ and M+) were the only factors associated with poor long term survival in left colon cancer.

RACIONAL: Câncer colorretal é o tipo mais comum das neoplasias gastrointestinais. Há muitas controvérsias na literatura acerca do valor prognóstico do sítio da neoplasia. Muitos estudos revelam maiores taxas de sobrevida para tumores em cólon direito, com piora do prognóstico à medida que as lesões se situam mais distalmente. OBJETIVO: Analisar os resultados do tratamento cirúrgico de pacientes com câncer de cólon direito estádios I-IV operados em um período de dez anos e identificar os fatores prognósticos que foram associados com menor sobrevida global. MÉTODOS: Em 10 anos, 187 pacientes foram submetidos à colectomia direita com intenção curativa. Foram estudados os seguintes fatores: gênero, idade, localização do tumor, o número de linfonodos obtidos no espécime, comprometimento linfonodal, estádio T e presença de metástases à distância. Estes fatores foram avaliados quanto à possibilidade de serem indicadores prognósticos na sobrevida em cinco anos. RESULTADOS: A idade média foi de 65 (±12) anos e 105 (56,1%) eram mulheres. A localização, mas comum foi o cólon ascendente (48,1%), seguido do ceco (41,7%) e o ângulo hepático (10,2%). A média de tempo de internação hospitalar foi 14 (±2.8) dias. A distribuição do estádio T foi T1 (4,8%), T2 (7,5%), T3 (74,9%) e T4 (12,8%). Acometimento linfonodal ocorreu em 46,0% e metástases à distância em 3,7%. Um mínimo de 12 linfonodos ressecados foram obtidos em 87,2% dos espécimes cirúrgicos. Em 84.5% os tumores eram não-mucinosos. A média de sobrevida foi de 38,3 (±30.8) meses. A sobrevida geral foi afetada pelo estádio T, N, M e pelo estádio final. O acometimento linfonodal (RR=2,06) e os estádios III/IV (RR=2,81) foram fatores prognósticos negativos independentes. CONCLUSÕES: Estádio avançado e envolvimento linfonodal foram os fatores associados com a pior sobrevida em longo prazo.

BACKGROUND: Colorectal cancer is one of the most common malignancies in the world. There are many controversies in the literature about the prognostic value of primary tumor location. Many studies have shown higher survival rates for tumors in the right colon, and worse prognosis for lesions located more distally in the colon. AIM: To analyze the results of surgical treatment of right-sided colon cancers patients operated in one decade period and identify the prognostic factors that were associated with lower overall survival in stages I-IV patients. METHODS: A retrospective review from the prospectively collected database identified 178 patients with right-sided colon cancer surgically treated with curative intent. Demographic factors (gender and age), tumor factors (site, T stage, N stage, M stage, histological type and tumor differentiation), and lymph node yield were extracted to identify those associated with lower overall survival. RESULTS: Mean age was 65 (±12) years old, and 105 (56.1%) patients were female. Most common affected site was ascending colon (48.1%), followed by cecum (41.7%) and hepatic flexure (10.2%). Mean length of hospital stay was 14 (±2.8) days. T stage distribution was T1 (4.8%), T2 (7.5%), T3 (74.9%), and T4 (12.8%). Nodal involvement was present in 46.0%, and metastatic disease in 3.7%. Twelve or more lymph nodes were obtained in 87.2% of surgical specimens and 84.5% were non-mucinous tumors. Mean survival time was 38.3 (±30.8) months. Overall survival was affected by T stage, N stage, M stage, and final stage. Lymph node involvement (OR=2.06) and stage III/IV (OR=2.81) were independent negative prognostic factors. CONCLUSION: Right-sided colon cancer presented commonly at advanced stage. Advanced stage and lymph node involvement were factors associated with poor long term survival.

A cirurgia colorretal por vídeo representa procedimento avançado, geralmente associado a custos elevados. No entanto, vantagens observadas na evolução dos pacientes operados por esta via permitem recuperação mais precoce com menor tempo de hospitalização. Uma questão relevante relacionada a este tema diz respeito à dúvida se essas vantagens da cirurgia colorretal por vídeo podem compensar os maiores custos associados a este método. O objetivo deste trabalho foi fazer uma análise crítica dos diversos aspectos envolvidos na relação custo-benefício desta via de acesso em operações colorretais, com base em uma revisão da literatura sobre essa questão.

Laparoscopic colorectal surgery is now considered an advanced procedure often associated with great costs. However, the observed advantages in patient's outcome that are operated through this approach include faster recovery and less hospital stay. One important question regarding this issue is: is the laparoscopic colorectal surgery cost effective when compared to the conventional access? The scope of this paper was to make a critical analysis about the aspects that are involved in cost-effectiveness related to laparoscopic colorectal procedures, through a literature review.

Este trabalho multicêntrico reúne a experiência de 28 equipes brasileiras em vídeo-cirurgia colorretal. No período de 1992 a 2007 foram operados 5259 pacientes, sendo excluídos 515 (9,8%) doentes devido a dados incompletos. Foram avaliados 4744 pacientes, sendo 1994 homens (41,4%) e 2750 mulheres (58,6%), cuja idade variou de 1 a 94 anos (média de 57,5 anos). Doenças benignas foram diagnosticadas em 2355 pacientes (49,6%). A maioria das afecções (50,7%) localizava-se no cólon esquerdo e sigmóide, 28,2% no reto e 0,3% no canal anal, 8,0% no cólon direito e 7,0% difusa. Ocorreram 29 óbitos (1,6%). Foram operados 2389 (50,4%) pacientes portados de tumores malignos, estando localizados no reto em 48,5%, cólon esquerdo e sigmóide 30,7%, cólon direito 16%, cólon transverso 3,2% e canal anal 0,6%. Os tipos histológicos foram 2347 (98%) adenocarcinomas, 30 (0,6%) carcinomas espinocelulares e outros tipos histológicos em 12 (0,2%) pacientes. A recidiva global foi de 15,3%. Houve 180 (3,8%) complicações intra-operatórias, sendo as mais comuns lesões vasculares de cavidade e lesões de alças intestinais, com incidência de 1%. Foram relatadas 261 (5,5 %) conversões para laparotomia, sendo a causa mais comum a dificuldade técnica em 1,4%. Complicações pós-operatórias foram registradas em 683 (14,5 %). Em período médio de 52 meses de seguimento houve 19 (0,8%) recidivas no local de inserção de trocártes. Não houve recidiva parietal em incisão utilizada para retirada da peça. CONCLUSÕES: 1) Nos últimos anos, a experiência brasileira em vídeo-cirurgia colorretal teve aumento expressivo; 2) As indicações operatórias para câncer e doenças benignas foram semelhantes, sendo que a doença diverticular representou 40 % das doenças benignas tratadas; 3) Os índices de morbi-mortalidade foram baixos e semelhantes aos relatados na literatura; 4) Os resultados oncológicos avaliados demonstram que as ressecções laparoscópicas determinam índices de recidiva parietal semelhantes aos encontrados em operações convencionais.

This multicentric registry reports the experience of 28 Brazilian surgical teams specialized in laparoscopic colorectal surgery. Between 1992 and 2007, 4744 patients (1994 men - 42% and 2751 women - 58%) were operated on, with ages ranging from 1 to 94 years (average 57,5 years). Benign diseases were diagnosed in 2356 patients (49,6%). Most diseases (50,7%) were located in the left and sigmoid colon, 28,2% in the rectum and 0,3% anal canal, 8,0% in the right colon and difuse 7,0%. There were 181 (3,8%) intraoperative complications (0% to 14%). There were reported 261 (5,5 %) convertions to laparotomy (0 to 16,5%), that were also more common during the early experience (n=119 -59,8%). Postoperative complications were registered in 683 (14,5 %) patients (5,0% to 50,%). Mortality occurred in 43 patients (0,8%). Two thousand, three hundred and eight nine (50,4%) malignant tumors were operated on, and histological classification showed 2347 (98%) adenocarcinomas, 30 (0,6%) spinocellular carcinomas and 12 (0,2%) other histological types. Overall tumor recurrence rate was15,3%, the majority of which (68%) diagnosed during the first 2 years of follow-up. After an average follow-up of 52 months, there were reported 19 (0,8%) parietal recurrences, eighteeng of which in port sites and one in a patient with disseminated disease. There was no incisional recurrence in the ports used to withdraw the pathologic specimen. CONCLUSIONS: 1) There was an expressive increase in the Brazilian experience during the last years; 2) Operative indications for benign and malignant diseases were similar, and diverticular disease of the colon represented 40% of the benign ones; 3) Complication and mortality rates were low and comparable to those reported in literature; 4) Oncological outcome are satisfactory and the incidence of parietal recurrence is acceptable and similar to that observed in conventional surgery.