RESUMEN
INTRODUCTION: Bariatric surgery is established as a possibility for the treatment of obesity, allowing weight reduction and remission of obesity comorbidities. Reported suboptimal clinical response rates are as high as 30-60% (insufficient weight loss or gain, defined as BMI greater than 35 kg/m2 or excess weight loss less than 50%). Proximal jejuno-ileal bypass (PJIBP) is a promising option when re-intervention is required. OBJECTIVES: To describe the standardization of a proprietary technique of modified PJIBP as a management procedure in patients with post-gastric bypass recurrent weight gain or insufficient post-intervention weight loss. METHODS: This study evaluated a case series of 10 Latin American patients requiring post-bariatric re-intervention, between February 2018 and 2023, in a single-metabolic surgery center in Cali-Colombia. RESULTS: Median age was 45 years (26-70 RIC), 60% female, and 40% male. Mean BMI at conversion was 36.7 kg/m2 (6.4 SD). Median follow-up was 22 months (RIC 16-30). Mean percentage of excess weight lost was 78% (22.4 SD). One hundred percent achieved glycemia control, only one patient persisted with dyslipidemia, and no patient presented hypoalbuminemia. At the end of follow-up, 100% received vitamin supplementation. CONCLUSION: PJIBP could be an effective procedure, associated with positive results in relation to weight loss and resolution of obesity comorbidities. Deficiencies of fat-soluble vitamins and protein malnutrition represent the main concern in the long term, so multidisciplinary management and continuous follow-up are required.
Asunto(s)
Derivación Gástrica , Derivación Yeyunoileal , Obesidad Mórbida , Reoperación , Pérdida de Peso , Humanos , Femenino , Masculino , Adulto , Persona de Mediana Edad , Obesidad Mórbida/cirugía , Reoperación/estadística & datos numéricos , Derivación Yeyunoileal/métodos , Anciano , Resultado del TratamientoRESUMEN
Background: We previously described sleeve gastrectomy with jejunoileal bypass (SGJIB) as promising novel technique for the surgical treatment of obesity Methods: A retrospective analysis of a prospective database in a Private Practice of Alimentary Tract Surgery in São Paulo, Brazil. We analyzed 176 patients with 60 months of follow-up, 74 of whom underwent Vertical Sleeve Gastrectomy with Jejunoileal Bypass (VSG-JIB) (50 women and 24 men) with a mean age of 38 years and a mean body mass index (BMI) of 40 kg/m2, and 102 patients underwent Roux-en-Y gastric bypass (RYGB) (90 women and 12 men) with a mean age of 36.5 years and a mean BMI of 39.73 kg/m2. Results: There was no statistically significant difference in long-term weight loss between the two groups. The rate of postoperative complications immediately after surgery was similar, but there was a tendency toward less severe complications in the SGJIB cohort. Conclusion: Sleeve gastrectomy with jejunoileal bypass is a novel surgical procedure for weight loss with comparable efficacy and safety compared with laparoscopic RYGB.
Asunto(s)
Derivación Gástrica , Laparoscopía , Obesidad Mórbida , Masculino , Humanos , Femenino , Adulto , Derivación Gástrica/métodos , Estudios de Cohortes , Obesidad Mórbida/cirugía , Obesidad Mórbida/complicaciones , Derivación Yeyunoileal , Estudios Retrospectivos , Brasil , Gastrectomía/métodos , Laparoscopía/métodos , Pérdida de Peso , Resultado del TratamientoRESUMEN
Diverticula at the jejuno-ileum are rare. They correspond mostly to pseudo diverticula and usually go unnoticed. Among symptomatic patients the clinical presentation is heterogeneous. We present 3 cases of it most frequent complication: acute jejunal diverticulitis
La presencia de divertículos a nivel de yeyuno-íleon es infrecuente. Ellos corresponden mayormente a pseudo divertículos y suelen pasar desapercibidos. Entre los casos sintomáticos, la presentación clínica es heterogénea. Presentamos 3 casos de diverticulitis aguda yeyunal que es la complicación más frecuente.
Asunto(s)
Humanos , Masculino , Femenino , Anciano , Anciano de 80 o más Años , Enfermedad Aguda , Diverticulitis/complicaciones , Diverticulitis/terapia , Enfermedades del Yeyuno/complicaciones , Enfermedades del Yeyuno/terapia , Dolor Abdominal/etiología , Tomógrafos Computarizados por Rayos X , Antibacterianos/uso terapéuticoRESUMEN
Background: Multiple small-bowel diverticulosis comprises a rare entity with probable underestimated incidence, and that may be the reason why it is sometimes overlooked when managing cases with peritonitis. Case report: In the present paper, we report the case of a 76-year-old male presenting abdominal pain and fever in an acute setting. Computed tomography (CT) scans revealed jejunal thickening and numerous images of saccular addition that were interpreted as jejunoileal diverticulitis. After an initial period of clinical treatment, surgical management was indicated based on a worsening clinical picture and the presence of an extraluminal focus of gas detected in a subsequent CT scan. Through a laparoscopic approach, multiple small-bowel diverticula and a tamponade perforation were found. A segmental intestinal resection was performed, and the patient was discharged after a ten days. Conclusions: Multiple jejunal diverticulosis is a rare condition that should be remembered in the setting of an acute abdomen. As it prevails among older patients, early diagnosis with radiological aid is crucial to establish the most adequate management, including intestinal resection, if necessary. (AU)
Asunto(s)
Humanos , Masculino , Anciano , Divertículo/complicaciones , Yeyuno , Tomografía Computarizada por Rayos X , Laparoscopía , Perforación Intestinal/etiologíaRESUMEN
ABSTRACT Background: Intestinal diversions have revolutionized the treatment of morbid obesity due to its viability and sustained response. However, experimental studies suggest, after these derivations, a higher risk of colon cancer. Aim: To analyze the histological and immunohistological changes that the jejunojejunal shunt can produce in the jejunum, ileum and ascending colon. Method: Twenty-four male Wistar rats were randomly divided into two groups, control (n=12) and experiment (n=12) and subdivided into groups of four. Nine weeks after the jejunojejunal shunt, segmental resection of the excluded jejunum, terminal ileum and ascending colon was performed. Histological analysis focused on the thickness of the mucosa, height of the villi, depth of the crypts and immunohistochemistry in the expression of Ki-67 and p53. Results: Significant differences were found between the experiment and control groups in relation to the thickness of the mucosa in the jejunum (p=0.011), in the ileum (p<0.001) and in the colon (p=0.027). There was also a significant difference in relation to the height of the villus in the ileum (p<0.001) and the depth of the crypts in the jejunum (p0.001). The results indicated that there is a significant difference between the groups regarding the expression of Ki-67 in the colon (p<0.001). No significant differences were found between the groups regarding the expression of Ki-67 in the jejunum and ileum. In the P53 evaluation, negative nuclear staining was found in all cases. Conclusion: The jejunojejunal deviation performed in the Roux-in-Y gastrojejunal bypass, predispose epithelial proliferative effects, causing an increase in the thickness of the mucosa, height of the villi and depth of the crypts of the jejunum, ileum and ascending colon.
RESUMO Racional: As derivações intestinais revolucionaram o tratamento da obesidade mórbida pela sua viabilidade e resposta sustentada. Porém, estudos experimentais sugerem, após estas derivações, risco maior de câncer de cólon. Objetivo: Analisar as alterações histológicas e imunoistológicas que a derivação jejunojejunal possa produzir no jejuno, íleo e cólon ascendente. Método: Foram utilizados 24 ratos Wistar machos randomicamente divididos em dois grupos, controle (n=12) e experimento (n=12) e subdivididos em grupos de quatro. Nove semanas após a derivação jejunojejunal procedeu-se a ressecção segmentar do jejuno excluso, íleo terminal e cólon ascendente. Análise histológica focou na espessura da mucosa, altura dos vilos, profundidade das criptas e a imunoistoquímica na expressão do Ki-67 e p53. Resultados: Foram encontradas diferenças significativas entre os grupos experimento e controle em relação à espessura da mucosa no jejuno (p=0,011), no íleo (p<0,001) e no cólon (p=0,027). Também houve diferença significativa em relação à altura dos vilos no íleo (p<0,001) e profundidade das criptas no jejuno (p<0,001). Os resultados indicaram que existe diferença significativa entre os grupos em relação à expressão do Ki-67 no cólon (p<0,001). Não foram encontradas diferenças significativas entre os grupos em relação à expressão do Ki-67 no jejuno e no íleo. Na avaliação do P53, foi encontrada coloração nuclear negativa em todos os casos. Conclusão: O desvio realizado na derivação gastrojejunal em Y-de-Roux, predispõem efeitos proliferativos epiteliais, causando aumento da espessura da mucosa, altura dos vilos e profundidade das criptas do jejuno, íleo e cólon ascendente.
Asunto(s)
Humanos , Animales , Masculino , Ratas , Derivación Gástrica/efectos adversos , Enfermedades del Colon/etiología , Ratas Wistar , Antígeno Ki-67/metabolismo , Íleon , Mucosa Intestinal , Intestino Delgado , Intestinos , Yeyuno/cirugíaRESUMEN
PURPOSE:To evaluate the effects of duodenal-jejunal bypass (DJB) on serum and hepatic profiles of obese rats fed on a western diet (WD).METHODS:Twenty eight male Wistar rats were fed a standard rodent chow diet (CTL group) or WD ad libitum. After 10 weeks, WD rats were submitted to sham (WD SHAM) or duodenal-jejunal bypass (WD DJB). Body weight, fat pad depots, glycemia, insulinemia, HOMA-IR, TyG, lipids profile and hepatic analyses were evaluated two months after surgery.RESULTS:The WD SHAM group presented greater obesity, hyperglycemia, hyperinsulinemia, insulin resistance, hypertriglyceridemia and hepatic steatosis than the CTL group. WD DJB rats presented decreased serum glucose and insulin resistance, when compared to WD SHAM animals, without changes in insulinemia. In addition, DJB surgery normalized serum TG and attenuated TG accumulation and steatosis in the liver of the WD DJB group. Hepatic ACC and FAS protein expressions were similar in all groups.CONCLUSION:Duodenal-jejunal bypass attenuates hepatic parameters of non-alcoholic fatty liver disease in obese rats fed on a western diet.(AU)
Asunto(s)
Animales , Ratas , Ratones Obesos , Dieta Occidental , Derivación Gástrica/veterinaria , Enfermedad del Hígado Graso no Alcohólico/terapia , Enfermedad del Hígado Graso no Alcohólico/veterinaria , Hígado Graso/veterinariaRESUMEN
PURPOSE: To evaluate the effects of duodenal-jejunal bypass (DJB) on serum and hepatic profiles of obese rats fed on a western diet (WD). METHODS: Twenty eight male Wistar rats were fed a standard rodent chow diet (CTL group) or WD ad libitum. After 10 weeks, WD rats were submitted to sham (WD SHAM) or duodenal-jejunal bypass (WD DJB). Body weight, fat pad depots, glycemia, insulinemia, HOMA-IR, TyG, lipids profile and hepatic analyses were evaluated two months after surgery. RESULTS: The WD SHAM group presented greater obesity, hyperglycemia, hyperinsulinemia, insulin resistance, hypertriglyceridemia and hepatic steatosis than the CTL group. WD DJB rats presented decreased serum glucose and insulin resistance, when compared to WD SHAM animals, without changes in insulinemia. In addition, DJB surgery normalized serum TG and attenuated TG accumulation and steatosis in the liver of the WD DJB group. Hepatic ACC and FAS protein expressions were similar in all groups. CONCLUSION: Duodenal-jejunal bypass attenuates hepatic parameters of non-alcoholic fatty liver disease in obese rats fed on a western diet. .
Asunto(s)
Animales , Masculino , Dieta Occidental , Duodeno/cirugía , Derivación Gástrica/métodos , Yeyuno/cirugía , Enfermedad del Hígado Graso no Alcohólico/cirugía , Obesidad/cirugía , Tejido Adiposo , Acetil-CoA Carboxilasa/análisis , Peso Corporal , Glucemia/análisis , Resistencia a la Insulina , Hígado/metabolismo , Hígado/patología , Enfermedad del Hígado Graso no Alcohólico/metabolismo , Enfermedad del Hígado Graso no Alcohólico/patología , Obesidad/metabolismo , Proteínas Serina-Treonina Quinasas/análisis , Ratas Wistar , Reproducibilidad de los Resultados , Factores de Tiempo , Triglicéridos/sangreRESUMEN
PURPOSE:To evaluate the effects of duodenal-jejunal bypass (DJB) on serum and hepatic profiles of obese rats fed on a western diet (WD).METHODS:Twenty eight male Wistar rats were fed a standard rodent chow diet (CTL group) or WD ad libitum. After 10 weeks, WD rats were submitted to sham (WD SHAM) or duodenal-jejunal bypass (WD DJB). Body weight, fat pad depots, glycemia, insulinemia, HOMA-IR, TyG, lipids profile and hepatic analyses were evaluated two months after surgery.RESULTS:The WD SHAM group presented greater obesity, hyperglycemia, hyperinsulinemia, insulin resistance, hypertriglyceridemia and hepatic steatosis than the CTL group. WD DJB rats presented decreased serum glucose and insulin resistance, when compared to WD SHAM animals, without changes in insulinemia. In addition, DJB surgery normalized serum TG and attenuated TG accumulation and steatosis in the liver of the WD DJB group. Hepatic ACC and FAS protein expressions were similar in all groups.CONCLUSION:Duodenal-jejunal bypass attenuates hepatic parameters of non-alcoholic fatty liver disease in obese rats fed on a western diet.
Asunto(s)
Animales , Ratas , Ratones Obesos , Derivación Gástrica/veterinaria , Dieta Occidental , Enfermedad del Hígado Graso no Alcohólico/terapia , Enfermedad del Hígado Graso no Alcohólico/veterinaria , Hígado Graso/veterinariaRESUMEN
PURPOSE: To analyse histopathological alterations characterized by the mitotic index in the mucosa of the large intestine in Wistar rats submitted to jejunoileal bypass operation after continued administration of sodium nitrite and vitamin C to different groups. METHODS: Eighty male Wistar rats were employed and separated into 12 groups. In the control group (20 rats): five animals ingested only water; five animals received vitamin C; five animals received sodium nitrite and five received sodium nitrite + vitamin C. In the sham group (20 rats), the animals were anesthetized and underwent midline laparotomy and only intestinal manipulation was performed: five animals ingested only water; five animals received vitamin C; five animals received sodium nitrite and five received sodium nitrite + vitamin C. In the operated group 40 rats underwent a jejunoileal bypass surgery: ten animals ingested only water; ten animals received vitamin C; ten animals received sodium nitrite and ten received sodium nitrite + vitamin C. The mean weight of the animals was measured weekly. The large intestine was subdivided into cecum (S1), ascending colon (S2), transverse colon (S3), descending colon (S4) and rectum (S5) for histopathological analysis and mitotic counts. The statistical analysis was used to compare the mitotic indices. The level of significance was 5%. RESULTS: The mean of all the segments indicates that the sodium nitrite+vitamin C group obtained the lowest mitotic index compared to the other treatments in the control group. The segments S1 and S2 showed a statistical difference with the vitamin C treatment: a higher mitotic index and better preservation of the mucosa in the operated group. In the sham group the main statistical difference occurred only in the sodium nitrite+vitamin C group between the means of the segments. CONCLUSIONS: The comparison of all the colonic segments of the various groups revealed a lower mitotic index in the animals treated with sodium nitrite+vitamin C. In addition, it was found that vitamin C did not present a statistically significant inhibiting effect on the preservation of the mucosa and the mitotic index.
OBJETIVO: Analisar as alterações histopatológicas caracterizada pelo índice mitótico na mucosa do intestino grosso em ratos Wistar submetidos a operação de bypass jejunoileal após a administração continuada de nitrito de sódio e vitamina C para diferentes grupos. MÉTODOS: Oitenta ratos Wistar foram utilizados e separados em 12 grupos. No grupo controle (20 ratos): cinco animais ingeriram apenas água; cinco animais receberam vitamina C, cinco animais receberam nitrito de sódio e cinco receberam nitrito de sódio + vitamina C. No grupo sham (20 ratos), os animais foram anestesiados e submetidos a laparotomia mediana e só a manipulação intestinal foi realizada: cinco animais ingeriram apenas água; cinco animais receberam vitamina C, cinco animais receberam nitrito de sódio e cinco receberam nitrito de sódio + vitamina C. No grupo operado 40 ratos foram submetidos a uma cirurgia de bypass jejunoileal: dez animais ingeridos apenas água; dez animais receberam vitamina C, dez animais receberam nitrito de sódio e dez nitrito de sódio + vitamina C. O peso médio dos animais foi medido semanalmente. O intestino grosso foi subdividido em ceco (S1), cólon ascendente (S2), cólon transverso (S3), cólon descendente (S4) e reto (S5) para análise histopatológica e contagem das mitoses. A análise estatística foi utilizado para comparar os índices mitóticos. O nível de significância foi de 5%. RESULTADOS: A média de todos os segmentos indica que o grupo que ingeriu nitrito de sódio + vitamina C obteve o menor índice mitótico em relação aos demais tratamentos no grupo controle. Os segmentos S1 e S2 mostraram uma diferença estatística com a vitamina C de tratamento: um maior índice mitótico e melhor preservação da mucosa no grupo operado. No grupo sham a principal diferença estatística ocorreu apenas no grupo que ingeriu nitrito de sódio + vitamina C entre as médias dos segmentos. CONCLUSÕES: A comparação de todos os segmentos do colon dos vários grupos revelaram um menor índice de mitose nos animais tratados com nitrito de sódio + vitamina C. Além disso, a vitamina C não apresentou efeito inibidor, estatísticamente significativo, na preservação da mucosa e do índice de mitoses.
Asunto(s)
Animales , Masculino , Ratas , Ácido Ascórbico/farmacología , Conservantes de Alimentos/farmacología , Intestino Grueso/patología , Derivación Yeyunoileal/efectos adversos , Mitosis/efectos de los fármacos , Nitrito de Sodio/farmacología , Antioxidantes/farmacología , Mucosa Intestinal/efectos de los fármacos , Mucosa Intestinal/patología , Intestino Grueso/efectos de los fármacos , Índice Mitótico , Mitosis/fisiología , Ratas WistarRESUMEN
Background: Short bowel tumors correspond to 2 percent of gastrointestinal tract tumors and are the third cause of bowel obstruction. Aim: To perform a clinico-pathological correlation of jejunoileal tumors. Patients and Methods: Retrospective revision of medical records of patients operated for a primary jejunoileal tumor in a period of 17 years, excluding duodenal tumors. Results: Twenty four patients were identified, seven had gastrointestinal stromal tumors (GIST), six had a carcinoid tumor and five had lymphomas. GIST predominantly involved distal jejunum and proximal ileum, while carcinoid tumors and lymphomas tended to involve the distal ileum. The main clinical presentation of GIST was gastrointestinal bleeding. Carcinoid tumors presented mostly as bowel occlusion and lymphomas as bowel perforation. Benign lesions tended to present as intussusception. CAT scan and CAT enteroclysis allowed the preoperative diagnosis in 20 patients. Immunohistochemistry was relevant for the pathological diagnosis and radical surgery was the basis of treatment. Prognosis depended on the pathology of the tumor, the degree of malignancy and the tumor stage at the moment of diagnosis. Conclusions: Excluding duodenum, GIST and carcinoid tumors account for 65 percent of primary malignant tumors of jejunum and ileum. Some clues for the diagnosis can be obtained from the clinical picture of the patients.
Objetivo: Establecer una correlación clínico-patológico de los tumores primarios de yeyuno e íleon (Y-I). Pacientes y Método: Revisión retrospectiva que incluye todos los pacientes intervenidos por un tumor primario de Y-I, con exclusión de los tumores de duodeno, en un período de 17 años. Resultados: 24 pacientes, destacando 7 tumores GIST, 6 carcinoides y 5 linfomas. Predominio de sexo masculino (20/4), distribución por edad variable según el tipo de tumor (promedio 55,5 años en los GIST, 64 años en los tumores carcinoides y 50 años en los linfomas). Es llamativo el compromiso del yeyuno y de íleon proximal de los GIST, mientras que los tumores carcinoides y el linfoma afectan de preferencia al íleon terminal. En la presentación clínica predomina la hemorragia digestiva en los GIST, la obstrucción intestinal incompleta en los carcinoides, la perforación en los linfomas, la obstrucción aguda en los adenocarcinomas y la intususcepción en las lesiones benignas. La tomografía computada (TC) y la enteroclisis por TC permitió el diagnóstico preoperatorio en 20 pacientes. La inmunohistoquímica (IHQ) es relevante en el diagnóstico histopatológico de certeza y la cirugía radical con R0 es la base del tratamiento de estas lesiones. El pronóstico depende del tipo histológico, el grado de malignidad y la etapa al momento del diagnóstico. Excluyendo el duodeno, el GIST y los tumores carcinoides representan más de la mitad del global y el 65 por ciento de las neoplasias malignas primarias que afectan el segmento Y-I. Conclusión: A pesar de la rareza y de la heterogeneidad de estos tumores, es posible reconocer una correlación clínico patológica útil en el manejo quirúrgico de los tumores primarios de Y-I.
Asunto(s)
Humanos , Masculino , Adulto , Femenino , Persona de Mediana Edad , Neoplasias del Íleon/cirugía , Neoplasias del Íleon/patología , Neoplasias del Yeyuno/cirugía , Neoplasias del Yeyuno/patología , Distribución por Edad y Sexo , Tumor Carcinoide , Estudios de Seguimiento , Tumores del Estroma Gastrointestinal , Hamartoma , Linfoma , Neoplasias del Íleon/epidemiología , Neoplasias del Yeyuno/epidemiología , Recurrencia , Estudios RetrospectivosRESUMEN
CONTEXT: Nutritional complications may occur after bariatric surgery, due to restriction of food intake and impaired digestion or absorption of nutrients. CASE REPORT: After undergoing vertical gastroplasty and jejunoileal bypass, a female patient presented marked weight loss and protein deficiency. Seven months after the bariatric surgery, she presented dermatological features compatible with acrodermatitis enteropathica, as seen from the plasma zinc levels, which were below the reference values (34.4 mg%). The skin lesions improved significantly after 1,000 mg/day of zinc sulfate supplementation for one week. CONCLUSIONS: The patient's evolution shows that the multidisciplinary team involved in surgical treatment of obesity should take nutritional deficiencies into consideration in the differential diagnosis of skin diseases, in order to institute early treatment.
CONTEXTO: Complicações nutricionais podem ocorrer após cirurgia bariátrica, pela restrição no consumo de alimentos e por comprometimento do processo digestivo e absortivo. RELATO DO CASO: Após ter sido submetida a gastroplastia vertical e derivação jejuno-ileal, uma paciente apresentou acentuada perda de peso e desnutrição proteica. Sete meses após a cirurgia bariátrica, manifestou-se quadro dermatológico compatível com acrodermatite enteropática, verificado a partir dos níveis plasmáticos de zinco (34,4 mg%), que se situavam abaixo dos valores de referência. As lesões cutâneas melhoraram significativamente após 1.000 mg/dia de suplementação de sulfato de zinco, por uma semana. CONCLUSÕES: A evolução da paciente mostra que a equipe multiprofissional envolvida no tratamento cirúrgico da obesidade deve considerar as deficiências nutricionais no diagnóstico diferencial das doenças cutâneas, a fim de instituir precocemente o tratamento.
Asunto(s)
Adulto , Femenino , Humanos , Acrodermatitis/etiología , Gastroplastia/efectos adversos , Derivación Yeyunoileal/efectos adversos , Zinc/deficiencia , Acrodermatitis/patología , Acrodermatitis/terapia , Terapia Combinada/efectos adversos , Resultado del Tratamiento , Zinc/sangreRESUMEN
PURPOSE: To analyse histopathological alterations characterized by the mitotic index in the mucosa of the large intestine in Wistar rats submitted to jejunoileal bypass operation after continued administration of sodium nitrite and vitamin C to different groups. METHODS: Eighty male Wistar rats were employed and separated into 12 groups. In the control group (20 rats): five animals ingested only water; five animals received vitamin C; five animals received sodium nitrite and five received sodium nitrite + vitamin C. In the sham group (20 rats), the animals were anesthetized and underwent midline laparotomy and only intestinal manipulation was performed: five animals ingested only water; five animals received vitamin C; five animals received sodium nitrite and five received sodium nitrite + vitamin C. In the operated group 40 rats underwent a jejunoileal bypass surgery: ten animals ingested only water; ten animals received vitamin C; ten animals received sodium nitrite and ten received sodium nitrite + vitamin C. The mean weight of the animals was measured weekly. The large intestine was subdivided into cecum (S1), ascending colon (S2), transverse colon (S3), descending colon (S4) and rectum (S5) for histopathological analysis and mitotic counts. The statistical analysis was used to compare the mitotic indices. The level of significance was 5%. RESULTS: The mean of all the segments indicates that the sodium nitrite+vitamin C group obtained the lowest mitotic index compared to the other treatments in the control group. The segments S1 and S2 showed a statistical difference with the vitamin C treatment: a higher mitotic index and better preservation of the mucosa in the operated group. In the sham group the main statistical difference occurred only in the sodium nitrite+vitamin C group between the means of the segments. CONCLUSIONS: The comparison of all the colonic segments of the various groups revealed a lower mitotic index in the animals treated with sodium nitrite+vitamin C. In addition, it was found that vitamin C did not present a statistically significant inhibiting effect on the preservation of the mucosa and the mitotic index.(AU)
OBJETIVO: Analisar as alterações histopatológicas caracterizada pelo índice mitótico na mucosa do intestino grosso em ratos Wistar submetidos a operação de bypass jejunoileal após a administração continuada de nitrito de sódio e vitamina C para diferentes grupos. MÉTODOS: Oitenta ratos Wistar foram utilizados e separados em 12 grupos. No grupo controle (20 ratos): cinco animais ingeriram apenas água; cinco animais receberam vitamina C, cinco animais receberam nitrito de sódio e cinco receberam nitrito de sódio + vitamina C. No grupo sham (20 ratos), os animais foram anestesiados e submetidos a laparotomia mediana e só a manipulação intestinal foi realizada: cinco animais ingeriram apenas água; cinco animais receberam vitamina C, cinco animais receberam nitrito de sódio e cinco receberam nitrito de sódio + vitamina C. No grupo operado 40 ratos foram submetidos a uma cirurgia de bypass jejunoileal: dez animais ingeridos apenas água; dez animais receberam vitamina C, dez animais receberam nitrito de sódio e dez nitrito de sódio + vitamina C. O peso médio dos animais foi medido semanalmente. O intestino grosso foi subdividido em ceco (S1), cólon ascendente (S2), cólon transverso (S3), cólon descendente (S4) e reto (S5) para análise histopatológica e contagem das mitoses. A análise estatística foi utilizado para comparar os índices mitóticos. O nível de significância foi de 5%. RESULTADOS: A média de todos os segmentos indica que o grupo que ingeriu nitrito de sódio + vitamina C obteve o menor índice mitótico em relação aos demais tratamentos no grupo controle. Os segmentos S1 e S2 mostraram uma diferença estatística com a vitamina C de tratamento: um maior índice mitótico e melhor preservação da mucosa no grupo operado. No grupo sham a principal diferença estatística ocorreu apenas no grupo que ingeriu nitrito de sódio + vitamina C entre as médias dos segmentos. CONCLUSÕES: A comparação de todos os segmentos do colon dos vários grupos revelaram um menor índice de mitose nos animais tratados com nitrito de sódio + vitamina C. Além disso, a vitamina C não apresentou efeito inibidor, estatísticamente significativo, na preservação da mucosa e do índice de mitoses.(AU)
Asunto(s)
Ratas , Ratas Wistar/clasificación , Intestino Grueso/anatomía & histología , Mucosa Intestinal/anatomía & histología , Nitrito de Sodio/química , Mitosis/genética , Ácido Ascórbico/químicaRESUMEN
INTRODUÇÃO: A gastroplastia vertical é procedimento técnico cada vez mais utilizado no tratamento cirúrgico da obesidade mórbida, sendo empregado isoladamente ou como tempo cirúrgico do duodenal switch ou da bipartição intestinal (técnica de Santoro). Quando empregada isoladamente tem apenas caráter restritivo. MÉTODO: É proposta a associação do desvio jejunoileal à gastroplastia vertical, no sentido de conferir um componente metabólico ao procedimento e eventualmente potencializá-lo a médio e longo prazos. Foram operados oito pacientes com obesidade mórbida após a retirada da banda gástrica ajustável ou como procedimento primário associado à gastroplastia vertical e desvio jejunoileal através de anastomose laterolateral entre o jejuno a 80 cm do ângulo dudeno jejunal e o íleo a 120 cm da válvula ileocecal, por videolaparoscopia. RESULTADOS: Os pacientes evoluíram sem qualquer intercorrência tanto no trans como no pós-operatório imediato, e nos meses que se seguiram. A evolução do IMC médio, mostrou redução expressiva indo de 39,57 kg/m² para 28 kg/m². Nenhum paciente referiu diarréia ou qualquer quadro disabsortivo no período estudado. CONCLUSÃO: Pode-se oferecer nova opção terapêutica, com ação restritiva e metabólica, na qual não existem os inconvenientes do desvio do trânsito duodenal com todas suas consequências.
INTRODUCTION: Vertical gastroplasty is increasingly used in the surgical treatment of morbid obesity, being used alone or as part of the duodenal switch surgery or even in intestinal bipartition (Santoro technique). When used alone has only a restrictive character. METHOD: Is proposed association of jejunoileal bypass to vertical gastroplasty, in order to give a metabolic component to the procedure and eventually empower it to medium and long term. Eight morbidly obese patients were operated after removal of adjustable gastric band or as a primary procedure associated to vertical banded gastroplasty with jejunoileal bypass laterolateral and anastomosis between the jejunum 80 cm from duodenojejunal angle and the ileum at 120 cm from ileocecal valve, by laparoscopy. RESULTS: The patients presented themselves without complications both in trans or in the immediate postoperative period, and also in the months that followed. The evolution BMI showed a significant reduction ranging from 39.57 kg/m² to 28 kg/m². No patient reported diarrhea or malabsorptive disorder in the period. CONCLUSION: It can be offered a new therapeutic option, with restraining and metabolic aspects, in which there are no consequences as the ones founded in procedures with duodenal diversion or intestinal transit alterations.
RESUMEN
A atresia do intestino delgado é malformação congênita, conhecida como causa comum de obstrução intestinal no período neonatal. A atresia duodenal familiar é extremamente rara e tem sido atribuída a aberrações cromossômicas e a consaguinidade, sugerindo herança autossômica recessiva. As anomalias intestinais distais, como a atresia jejunoileal,são malformações congênitas raras do intestino delgado e têm sido relacionadas a oclusões vasculares tanto no início quanto no final da gestação além de causas genéticas. A atresia jejunoileal familiar em gêmeos é de ocorrência extremamente rara e é relacionada a algumas drogas e tinturas que são instiladas durante a gestação para diagnósticopor amniocentese e tem sido descrita como causa da atresia jejunoileal em irmãos gêmeos. Autores de dois diferentes estudos descrevem que esta atresia é significantemente mais frequente em gêmeos que em irmãos nascidos separadamente. No presente artigo descrevemos dois casos extremamente raros em dois irmãos nascidos com três anosde diferença, ambos com atresia jejunoileal sem outras malformações associadas ou anomalias cromossômicas, que foram acompanhados pela equipe em 2004 e 2007, respectivamente. Apesar das investigações, não foram encontradas nenhuma razão para essa ocorrência. Contudo, os autores estão seguindo os dois meninos desde então e não detectaramalterações no desenvolvimento de nenhum deles que pudessem sugerir qualquer malformação associada.
Small intestinal atresia is a common congenital malformation and it is a well-known cause of intestinal obstruction in neonates. Familial occurrence of duodenal atresia is extremely rare and has been attributed to chromosomal aberrations and parental consanguinity suggesting autosomal recessive inheritance. Distal intestinal anomalies, such as jejunoileal atresia, are a rare congenital malformation of the small bowel and have been related to vascular occlusion in the earlier or later stages in pregnancy and genetic causes. Familial jejunoileal atresia in twins is an extremely rareoccurrence that is attributed to the use of some chemicals and other dyes instillated during diagnostic amniocentesis and has been described as a cause of jejunoileal atresia in twin-brothers. Authors of two different research institutes stated that jejunoileal atresia is significantly more frequent in twins than in singletons. In the present article we describean extremely rare occurrence in two singleton infants, who were born three years apart, with similar jejunoileal atresia with no other associated malformations or chromosomal anomalies, who were treated in 2004 and 2007, respectively. Despite investigation, we did not find any reason for this particular occurrence; however they will be closely followed inorder to detect any development alterations that could indicate an associated malformation.
RESUMEN
RACIONAL: Os procedimentos cirúrgicos para tratamento da obesidade morbida têm sido eficientes na resolução desta afecção a curto e longo prazo. Com exceção da banda gástrica ajustável todos estes procedimentos de alguma forma são capazes de induzir a liberação de hormônios intestinais em função do desvio intestinal e desta forma exercerem um efeito metabólico. OBJETIVO: Com a intenção de obter efeitos semelhantes às operações que promovem um desvio intestinal, com as vantagens de baixa morbidade e mortalidade da BGA, foi proposto novo procedimento técnico associando à banda gástrica ajustável a um desvio jejunoileal. MÉTODO: O procedimento cirúrgico totalmente conduzido por videolaparoscopia, consiste na aplicação inicial da banda gástrica e a seguir a realização de anastomose látero-lateral a 80 cm do ângulo duodenojejunal e 120 cm da válvula ileocecal. RESULTADOS: Foram operados 10 pacientes com esta técnica, seis mulheres e quatro homens com IMC médio de 40 kg/m2. A perda média de excesso de peso nos seis primeiros meses foi de 51,56
. Em quatro pacientes diabéticos houve normalização dos níveis glicêmicos e suspensão do uso da medicação antidiabética. CONCLUSÃO: Adição de desvio jejunoileal látero-lateral à banda gástrica pode melhorar a perda de peso em pacientes portadores de obesidade mórbida e contribuir para o controle da diabete tipo II.
BACKGROUND: Current procedures for surgical treatment of morbid obesity have proved to be efficient in controlling the process in the short and long follow-up. The bariatric surgical procedures, with the exception of the adjustable gastric banding are capable, in one way or another, of inducing hormonal release due to the intestinal by-pass that they may promote and therefore offering a metabolic effect. AIM: With the intention to maintain the same results promoted by gastrojejunal diversion, while maintaining the lower mortality rates of the adjustable gastric banding technique, it is proposed a new procedure combining adjustable gastric banding with jejunoileal diversion. METHOD: The surgical procedure, performed completely through videolaparoscopy, consisted of the initial application of the adjustable gastric banding and then a jejunoileal laterolateral by-pass, 80 cm from the duodenojejunal angle, with the distal ileum, at 120 cm from the ileocecal valve. RESULTS: Ten patients were operated on, six women and four men, with mean BMI of 40 kg/m2. The average percentage of excess weight loss after the first six months was 51.56
. In four diabetic type II patients there was a normalization of glicemic and HbA1c levels with suspension of insulin and/or antidiabetic medications. CONCLUSION: The addition of a laparoscopic jejunoileal laterolateral by-pass to the adjustable gastric banding may enhance the efficacy of weight-loss and diabetes type II control in the treatment of morbid obesity and its resulting co-morbidities.