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BACKGROUND: In Brazil, gastric cancer is the fourth most common malignancy among men and sixth among women. The cause is multivariate and the risks are well known. It has prognosis and treatment defined by the location and staging of the tumor and number of lymph nodes resected and involved. AIM: The Brazilian Consensus on Gastric Cancer promoted by ABCG was designed with the intention to issue guidelines that can guide medical professionals to care for patients with this disease. METHODS: Were summarized and answered 43 questions reflecting consensus or not on diagnosis and treatment that may be used as guidance for its multidisciplinary approach. The method involved three steps. Initially, 56 digestive surgeons and related medical specialties met to formulate the questions that were sent to participants for answers on scientific evidence and personal experience. Summaries were presented, discussed and voted in plenary in two other meetings. They covered 53 questions involving: diagnosis and staging (six questions); surgical treatment (35 questions); chemotherapy and radiotherapy (seven questions) and anatomopathology, immunohistochemistry and perspective (five questions). It was considered consensus agreement on more than 70% of the votes in each item. RESULTS: All the answers were presented and voted upon, and in 42 there was consensus. CONCLUSION: It could be developed consensus on most issues that come with the care of patients with gastric cancer and they can be transformed in guidelines.

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BACKGROUND: The goal of the present study was to investigate the course of ionized calcium after thyroidectomy and to define a cut-off value that indicates symptoms of hypocalcemia. METHODS: The sample included 333 patients undergoing thyroidectomy at the University Hospital of UFMG between September 2000 and December 2005. Ionized calcium was determined before and after surgery (days 1, 2, and 30) in all patients and on postoperative days 90 and 180 in those with hypocalcemia. Asymptomatic patients received no calcium replacement therapy, irrespective of calcium concentration. Patients with clinical manifestation of hypocalcemia were treated after laboratory confirmation. The presence or absence of postoperative hypocalcemia was associated with ionized calcium concentration measured on the reported days. RESULTS: Ionized calcium declined on the first two days after surgery in all patients when compared to preoperative levels (P = 0.000). Forty-seven (34.6%) of the 136 (40.8%) patients with postoperative hypocalcemia had symptoms. Patients with symptomatic hypocalcemia had significantly lower ionized calcium levels than those with asymptomatic hypocalcemia (P = 0.001). Fourteen (4.2%) patients progressed to definitive hypoparathyroidism by the end of 6 months. CONCLUSIONS: Measurement of ionized calcium on postoperative days 1 and 2 is sufficient for the evaluation of post-thyroidectomy hypocalcemia. Ionized calcium concentrations <1.03 mmol/l on postoperative day 1 are indicative of the presence of symptoms and the need for treatment.

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BACKGROUND: Hepatic steatosis and nonalcoholic steatohepatitis (NASH) have been increasingly implicated in the genesis of hepatic fibrosis and cirrhosis. However, no consensus exists about whether weight reduction may reverse this process. METHODS: To assess the effect of Roux-en-Y gastric bypass (RYGBP) on the histological evolution of NASH diagnosed in 64 patients by routine liver biopsy ("first" biopsy) performed during surgery, we performed a "second" biopsy after 23.5 +/- 8.4 months in 16 patients (14 female, 2 male). RESULTS: From the first to the second biopsy, BMI decreased from 53.4 +/- 8.8 kg/m2 to 31.1 +/- 4.7 kg/m2, arterial hypertension decreased from 75% to 43.8%, and type 2 diabetes decreased from 43.8% to zero. On the first biopsy, nonalcoholic fatty liver disease (NAFLD) type 3 was observed in 12 patients (75%) and type 4 in 4 (25%). The second biopsy revealed complete regression of NAFLD in 15 patients (93.7%) and only 1 (6.3%) had NAFLD type 1 (mild steatosis without inflammation). Complete regression of necroinflammatory activity was observed in all patients. Among the 4 patients presenting fibrosis in the first biopsy, complete remission was observed in 1 and improvement in 1. Two continued to show the same degree of fibrosis without evidence of disease activity. No worsening of steatosis, necroinflammatory activity or fibrosis was observed in any of the patients, and none progressed to cirrhosis. CONCLUSION: RYGBP improves steatosis, necroinflammatory activity and hepatic fibrosis in patients with morbid obesity and NASH.

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OBJETIVO: A cirrose hepática causa alterações acentuadas na circulação esplâncnica. Com o objetivo de investigar as alterações hemodinâmicas na velocidade do fluxo da veia porta, realizamos estudos com eco-Doppler em pacientes com cirrose hepática em estágio final antes, durante e após transplante hepático ortotópico (THO). MATERIAIS E MÉTODOS: Cinqüenta e quatro pacientes submetidos a THO e eco-Doppler intra-operatório foram avaliados prospectivamente, entre janeiro de 2002 e julho de 2003. Dezessete pacientes foram excluídos devido a dados incompletos relacionados a dificuldades técnicas para obter medidas ou morte prematura. Os 37 pacientes incluídos na análise tinham cirrose hepática associada principalmente a infecção pelo vírus da hepatite C e doença alcoólica. Todos os pacientes foram submetidos ao eco-Doppler imediatamente antes do THO, no período intra-operatório após a reperfusão do enxerto e no primeiro e sétimo dias do pós-operatório. A velocidade média do fluxo foi medida no tronco, ramo direito e ramo esquerdo da veia porta. A análise estatística foi realizada utilizando-se o teste t pareado e as diferenças foram consideradas significantes se p < 0,05. RESULTADOS: A velocidade média observada no pré-THO foi de 16.0 cm/s. As medidas intra-operatórias, realizadas minutos após a reperfusão do enxerto, mostraram aumento na velocidade do fluxo da veia porta para 84.09 cm/s. A velocidade do fluxo da veia porta foi de 71,0 cm/s e 58,5 cm/s no primeiro e sétimo dias do pós-operatório, respectivamente. As velocidades obtidas no intra e pós-operatório foram significativamente maiores do que no pré-THO (p < 0,001). No sétimo dia do pós-operatório, a velocidade média diminuiu significativamente em comparação aos valores do intra-operatório (p < 0.05). CONCLUSÃO: Nos transplantes hepáticos ocorre aumento significativo da velocidade média de fluxo da veia porta imediatamente após a reperfusão do enxerto em comparação aos valores pré-THO. De maneira semelhante, após esse pico máximo parece ocorrer redução significativa e progressiva na velocidade média de fluxo, atingindo valores próximos da normalidade no sétimo dia do pós-operatório.

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OBJETIVO: 0 objetivo deste estudo é demonstrar as alterações hemodinâmicas no fígado transplantado e as complicações de causas vasculares por meio do eco-Doppler. MATERIAL E MÉTODO: Neste estudo foram incluídos 25 pacientes submetidos a transplante hepático. Os vasos estuda-dos foram a veia porta e a artéria e veia hepáticas, com o uso de eco-Doppler no primeiro e sétimo dias pós-operatórios, em casos normais e de acordo com a necessidade clínica. RESULTADOS: Em três pacientes foi observada trombose da artéria hepática (6,8 por cento) e sete casos de estenose (15,9 por cento). Trombose portal ocorreu em apenas um paciente. Estas complicações foram tratadas com su-cesso com terapêutica cirúrgica, angioplastia ou conservadoramente. CONCLUSÃO: 0 uso se-qüencial do eco-Doppler é uma ferramenta muito útil no diagnóstico precoce de complicações vasculares no transplante hepático. Portanto, a ultra-sonografia com eco-Doppler é um método importante no monitoramento do pós-operatório normal e em casos de complicações.

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BACKGROUND: The authors evaluated calcium metabolism in obese women, before and after menopause, at baseline and at 6 and 12 months after laparoscopic Roux-en-Y gastric bypass (LRYGBP). LRYGBP restricts food intake and produces physiological changes that may be similar to those after high Billroth II subtotal gastrectomy. METHODS: Serum calcium (Ca), phosphate, bone-specific alkaline phosphatase (BSAP) and 25-hydroxyvitamin D3 (25-OH D) were measured at baseline and 12 months after LRYGBP. Urinary N-telopeptide (u-NTX) was measured at baseline and serum C-telopeptide (s-CTX) at 6 and 12 months after LRYGBP. Parathormone (PTH) was measured at baseline and 6 and 12 months after LRYGBP. Patients were divided into 2 groups: Group I (n=30) pre-menopausal women aged 18-42 y, and Group II (n=30) post-menopausal women aged 40-71 y. Patients with renal, hepatic, metabolic and bone disease, smoking women, as well as patients with u-NTX values at baseline >67 nMBCE/mMCr were excluded. RESULTS: At baseline, PTH was elevated in 10% of patients in each group, correlated positively with BMI, and low serum calcium values were found in 30% of Group I and 16.7% of Group II. High values of serum C-telopetide were seen in Group I at 6 months after surgery and in Group II 12 months after LRYGBP. Group II showed a greater increase in BSAP at 12 months after LRYGBP. 25-OHD decreased in both groups, and a progressive increase in PTH was observed. Serum calcium did not change in both groups. CONCLUSION: Calcium metabolism is altered in pre- and post-menopausal women following LRYGBP. Calcium and vitamin D supplementation is strongly advised in all patients.

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Fez-se uma análise prospectiva de 219 pacientes com obesidade mórbida, submetidos à cirurgia bariátrica entre 1996 e 2001, para estudar a prevalência e evolução do diabetes mellitus (DM). Trinta e nove pacientes (17,8%) do grupo eram diabéticos. O seguimento pós-operatório mostrou: melhor controle metabólico (glicemia em jejum e glicohemoglobina): 37 pacientes (94,8%) passaram a ser controlados somente com dieta: em um paciente (2,56%), a insulina pôde ser substituída por antidiabético oral e, em um paciente (2,56%), manteve-se o uso de insulina, porém em menor dosagem. O melhor controle do diabetes ocorreu entre 15 dias e 12 meses após a cirurgia (média de 3,4 meses). Naquele momento, o índice de massa corporal, a porcentagem de perda de peso e a porcentagem de perda de excesso de peso corporal demonstravam respectivamente: 43,5kg/m2 ± 7,15 (28,1-61,5); 16,8% (5,0-30,2%) e 30,6% (8,0-60,6%). Conclusões: 1) A prevalência de DM neste estudo foi de 17,8%; 2) A perda de peso melhorou o controle metabólico; 3) A redução média de 16,8% do peso corporal foi suficiente para melhorar o controle metabólico.

A prospective analysis of 219 patients with morbid obesity submitted to bariatric surgery between 1996 and 2001 was made to study the prevalence and evolution of the diabetes mellitus (DM). Thirty-nine patients (17.8%) met the criteria for type 2 DM. The follow-up showed better metabolic control (fasting plasma glucose and glycohemoglobin): 37 patients (94.8%) with diet alone, 1 patient (2.56%) changed insulin for oral drug and 1 patient (2.56%) continued with a lower dose of insulin. Treatment was modified between 15 days and 12 months after surgery (3.4 months). At that time: BMI 43.5 kg/m2± 7.15 (28.1-61.5), % loss body weight 16.8% (5-30.2), % loss excess body weight 30.6% (8- 60.6). Conclusion: 1) The prevalence of DM was 17.8%. 2) The weight loss improved metabolic control. 3) Reduction of 16.8% of body weight was sufficient to improve metabolic control.

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Racional - A colecistectomia laparoscópica tornou-se, na década de 90, o método de escolha para o tratamento da colecistolitíase dintomática. Nos pacientes submetidos a ela, a realização rotineira ou seletiva da colangiografia intra-operatória permanente motivo de debate. A ultra-sonografia laparoscópica mostrou-se método promissor. Objetivo - Comparar o desempenho da colangiografia...

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Os cistos adrenais säo rara condiçäo clínica, pouco conhecida, de modo geral. Realizamos revisäo da literatura sobre Cistos Adrenais, considerando os aspectos de incidência, classificaçäo, quadro clínico, exames complementares, diagnóstico diferencial e tratamento.

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