Abstract Hereditary Hemochromatosis is a disorder characterized by iron deposition in several organs and hyperferritinemia. The most studied variants are linked to the HFE gene. In Brazil, surveys that characterize this population are scarce, with no sampling in the state of Rio Grande do Sul. Our objective is to carry out a data collection focusing on the profile of this population and the influence of the most frequently HFE variants. Two centers were enrolled: Hospital de Clínicas de Porto Alegre and Hospital São Vicente de Paulo. Patients with hyperferritinemia and undergoing phlebotomy were invited. Clinical data were collected, including HFE investigation. Among the descriptive data, the allele frequency of the C282Y variant (0.252) stands out, which differs from the national scenario. Systemic arterial hypertension was the most cited comorbidity. Differences between centers were observed, highlighting higher frequency of H63D cases in HSVP (p<0.01). Genotypes were stratified according to deleterious effect of C282Y variant. Higher transferrin saturation and number of phlebotomies were observed in the C282Y/C282Y cases (p<0.001). Positive family history for hyperferritinemia was more prevalent in compound heterozygotes (p<0.01). The results presented confirm the importance of encouraging such studies and reiterate the need for greater attention to this population.

RESUMO Objetivos: A irrigação arterial hepática tem como característica a elevada frequência de variações da anatomia. O objetivo do estudo foi descrever o trajeto anatômico da artéria hepática direita quando originada da artéria mesentérica superior. Métodos: Foram analisadas 5147 tomografias computadorizadas com contraste endovenoso de pacientes atendidos no Serviço de Radiologia do Hospital de Clínicas de Passo Fundo - RS, no período outubro de 2016 a dezembro de 2017. Foram selecionados 125 pacientes portadores de variação anatômica da artéria hepática direita na origem. Os achados foram categorizados pela variação do trajeto vascular, emergência da artéria mesentérica superior e a relação com demais estruturas. Resultados: Obtivemos o trajeto mais frequente desta variação como retropancreático (88,8%), retroportal (76,8%) e pós-coledociano (75,2%), emergindo cerca de 2,33 cm da origem da artéria mesentérica superior. Conclusão: Demonstramos que na maioria das vezes, a artéria hepática direita variante, apresenta trajeto posterior ao pâncreas e ao pedículo hepático e emerge próxima da origem da artéria mesentérica superior.

ABSTRACT Objective: Liver arterial irrigation is characterized by a high frequency of variations in its anatomy. The aim of the study was to describe the anatomic position of the right hepatic artery as a brunch of the superior mesenteric artery. Methods: A total of 5147 intravenous contrast-enhanced computed tomography scans of patients seen at the Radiology Service of the Passo Fundo Clinical Hospital (RS), from October 2016 to December 2017, were selected. 125 patients with anatomic variation of the right hepatic artery were selected. The findings were categorized by the variation of the vascular position, emergence from the superior mesenteric artery and the relationship with other structures. Results: The most frequent position was retropancreatic (88.8%), retroportal (76.8%) and post-choledocian (75.2%), emerging about 2.33 cm from the superior mesenteric artery. Conclusion: We have shown that most common variant of the right hepatic artery presents its posterior origin from the pancreatic and hepatic pedicle, and arises close to the origin of the superior mesenteric artery.

RESUMO Objetivo: avaliar se a laparoscopia com lavado peritoneal é superior à tomografia computadorizada para o estadiamento do adenocarcinoma gástrico e se pode modificar a conduta cirúrgica do paciente. Métodos: estudo retrospectivo de 46 pacientes portadores de adenocarcinoma gástrico tratados pela equipe de cirurgia digestiva do Hospital de Clínicas de Passo Fundo (RS), de janeiro de 2015 a dezembro de 2018, e submetidos à laparoscopia com lavado peritoneal pré-operatório. Todos os pacientes foram submetidos ao estadiamento clínico pré-operatório com tomografia computadorizada. Resultados: dos 46 pacientes analisados, a maioria apresentava tumores localizados na cárdia (34,8%), pouco diferenciados (69,6%) e do subtipo células em anel de sinete (65,2%). Em 91,3% deles a tomografia computadorizada não identificou carcinomatose peritoneal ou metástases à distância. Entre estes pacientes com tomografia computadorizada negativa para doença à distância, 21,8% apresentaram lavado peritoneal positivo para células neoplásicas e tiveram suas condutas terapêuticas modificadas. Conclusão: a laparoscopia e o lavado peritoneal alteraram a decisão cirúrgica em 21,8% dos pacientes, proporcionando um estadiamento pré-operatório mais fidedigno no adenocarcinoma gástrico.

ABSTRACT Objective: to assess whether laparoscopy with peritoneal lavage is superior to computed tomography for staging gastric adenocarcinoma and whether it can modify the surgical approach. Methods: we conducted a retrospective study of 46 patients with gastric adenocarcinoma treated by the digestive surgery team of the Passo Fundo Clinics Hospital (RS), from January 2015 to December 2018, and submitted to laparoscopy with preoperative peritoneal lavage. All patients underwent preoperative clinical staging with computed tomography. Results: of the 46 patients analyzed, the majority had tumors located in the cardia (34.8%), poorly differentiated (69.6%), and subtype signet ring cells (65.2%). In 91.3%, the computed tomography scan did not identify peritoneal carcinomatosis or distant metastasis. Among these patients with negative computed tomography for distant disease, 21.8% had positive peritoneal lavage for neoplastic cells and had their therapeutic approaches modified. Conclusion: laparoscopy and peritoneal lavage altered the surgical decision in 21.8% of patients, providing a more reliable preoperative staging in gastric adenocarcinoma.