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Browsing GAS - Artigos publicados em revistas indexadas by Author "Alberto, S"
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- Dieulafoy’s lesion in Treitz’s anglePublication . Alberto, S; Oro, I; Pires, E; Alves, N; Godinho, A; Figueiredo, A; Deus, JR
- Hepatic abscess induced by foreign body: case report and literature reviewPublication . Santos, S; Alberto, S; Cruz, E; Pires, E; Figueira, T; Coimbra, E; Estevez, J; Oliveira, M; Novais, L; Deus, JRHepatic abscess due to perforation of the gastrointestinal tract caused by ingested foreign bodies is uncommon. Pre-operative diagnosis is diffi cult as patients are often unaware of the foreign body ingestion and symptoms and imagiology are usually non-specific. The authors report a case of 62-year-old woman who was admitted with fever and abdominal pain. Further investigation revealed hepatic abscess, without resolution despite antibiotic therapy. A liver abscess resulting from perforation and intra-hepatic migration of a bone coming from the pilorum was diagnosed by surgery. The literature concerning foreign body-induced perforation of the gastrointestinal tract complicated by liver abscess is reviewed.
- Hepatocellular carcinoma presenting with Budd-Chiari syndrome, right atrial thrombus and pulmonary emboliPublication . Lourenço, L; Horta, D; Alberto, S; Reis, JA 47-year-old patient presented with a two-week history of right upper quadrant pain, abdominal distention and new onset of shortness of breath. He had a history of intravenous drug abuse, no alcohol consumption and denied any known liver disease. On physical examination, he was tachypneic and had dullness in the flanks. His blood analysis at admission was as follows: hemoglobin, 12.9 g/dL; leukocyte count, 6,800/uL; platelet count, 63,000/uL; INR, 2.1; serum creatinine, 1.27 mg/dL; liver biochemistry tests were notable for marginal derangement, HBsAg was negative, anti-HCV was positive, HCV RNA was 367,498 IU/ml and alpha-fetoprotein was 992 mg/dL. Abdominal ultrasound showed a right liver lobe mass (13 cm in diameter) with inferior vena cava (IVC) thrombosis and mild peri-hepatic ascites. A 2D echocardiogram showed a presumed right atrial tumor thrombus. A multiphasic contrast-enhanced abdominal tomography (CT) confirmed a hepatocellular carcinoma (HCC) with IVC obstruction and extensive tumoral thrombus to the right atrium (14 cm long).
- Insuficiência hepática agudaPublication . Alberto, S; Pires, S; Figueiredo, A; Deus, JRIntrodução: Define-se como insuficiência hepática aguda o desenvolvimento rápido de falência hepática em indivíduos sem doença hepática prévia ou com doença hepática crónica compensada. Etiologia: É variada e é o principal indicador do prognóstico, pelo que a sua rápida identificação é vital. Avaliação inicial e diagnóstico: Atendendo a uma possível progressão para falência multiorgânica é necessário o internamento destes doentes numa Unidade de Cuidados Intensivos. A primeira abordagem terapêutica inclui medidas intensivas de suporte até determinar a etiologia exacta, para um tratamento dirigido. Para além da encefalopatia porto-sistémica podem ocorrer um conjunto de complicações sistémicas responsáveis pela alta morbilidade e mortalidade desta entidade e que exigem uma vigilância e terapêutica rigorosas. Os sistemas artificiais de suporte hepático são alternativas de tratamento ainda em estudo e sem influência comprovada a longo prazo, sendo o transplante hepático a terapêutica final. Atendendo às limitações inerentes a este procedimento, a sua decisão depende de um prognóstico correcto baseado em vários modelos estatísticos de previsão.
- Is there a proximal shift in the distribution of colorectal adenomas?Publication . Oliveira, AM; Anapaz, V; Lourenço, L; Rodrigues, C; Alberto, S; Martins, A; Deus, JR; Reis, JINTRODUCTION: Several studies have shown a proximal shift of colorectal cancer (CRC) during the last decades. However, few have analyzed the changing distribution of adenomas over time. AIM: The aim of this study was to compare the site and the characteristics of colorectal adenomas, in a single center, during two periods. METHODS: We conducted a retrospective, observational study in a single hospital of adenomas removed during a total colonoscopy in two one-year periods: 2003 (period 1) and 2012 (period 2). Patients with inflammatory bowel disease, familial adenomatous polyposis, hereditary non-polyposis colorectal cancer syndrome, or history of CRC were excluded from the study. The χ(2) statistical test was performed. P values less than 0.05 were considered statistically significant. RESULTS: During the two considered periods, a total of 864 adenomas from 2394 complete colonoscopies were analyzed: 333 adenomas from 998 colonoscopies during period 1 and 531 adenomas from 1396 colonoscopies during period 2. There was a significant increase in the proportion of adenomatous polyps in the proximal colon from period 1 to 2 (30.6% to 38.8% (p = 0.015)). Comparing the advanced features of adenomas between the two periods, it was noted that in period 2, the number of adenomas with size ≥1 cm (p = 0.001), high-grade dysplasia (p = 0.001), and villous features (p < 0.0001) had a significant increase compared to period 1. CONCLUSION: Incidence of adenomatous polyps in the proximal colon as well as adenomas with advanced features has increased in the last years. This finding may have important implications regarding methods of CRC screening.
- Letter to the Editor regarding the article “Prevalence of Hepatitis A Virus Antibody in Portuguese Travelers: A New Paradigm”Publication . Branco, J; Alberto, S; Martins, A
- Rectal ulcer as a complication of Longo’s haemorrhoidopexyPublication . Alberto, S; Oro, I; Sanchez, P; Godinho, A; Garcia, H; Figueiredo, A; Deus, JR
- A rectocolic hemangioma as the cause of rectal bleeding and treated with rubber-band ligation and sclerotherapy.Publication . Alberto, S; Martins, A; Pires, S; Figueiredo, A; Deus, JR
- Tumores del estroma gastrointestinal. Estudio retrospectivo de 43 casosPublication . Alberto, S; Sánchez, P; Oliveira, M; Cuesta, L; Gomes, F; Figueiredo, A; Pinheiro, N; Deus, JRIntroducción: los tumores del estroma gastrointestinal (GIST) son poco frecuentes, con una incidencia de 10 a 20 casos por millón de habitantes y año. Aparecen en todo el tubo digestivo, mesenterio o epiplón adyacente; siendo más frecuentes en el estómago(60-70%); también pueden aparecer en el intestino delgado (20-25%), colon y recto (5%) y esófago (< 5%). Su presentación varía desde pequeños nódulos asintomáticos hasta formas más agresivas. Su clasificación se realiza actualmente con base a los criterios de Fletcher. Objetivo: revisión y caracterización de los casos de GIST observados en nuestro centro durante un periodo de 10 años. Métodos: estudio retrospectivo de pacientes diagnosticados con GIST (identificados por criterios inmunohistoquímicos) desde enero de 1997 hasta diciembre de 2007 y clasificados por los criterios de Fletcher. Resultados: se estudiaron 43 pacientes (24 hombres y 19 mujeres), con una edad media de 62,7 años. La mayoría de los GIST encontrados se localizaban en el estómago (n = 20, 46,5%), intestino delgado (n = 18, 41,9%) y en 5 casos se detectaron como metástasis de un tumor oculto. Dieciocho casos fueron asintomáticos. Por los criterios de Fletcher 19 eran casos de alto riesgo, 7 de riesgo intermedio, 12 de bajo riesgo y 5 de riesgo indeterminado. Diez pacientes fallecieron por progresión de la enfermedad y 13 pacientes presentaron metástasis a distancia. Conclusiones: en nuestra serie, tal como en la literatura, se observa un predominio del sexo masculino y mayor frecuencia de localización gástrica. La supervivencia fue del 42% a los 5 años. La aplicación de los criterios de Fletcher fue consistente con la evolución.