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Gastroenterologia

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  • Abordagem clínica da cirrose hepática: protocolos de atuação
    Publication . Reis, J; Alves, N; Martins, A; Horta, D; Alberto, S; Santos, L; Carvalho, R; Rodrigues, C; Oliveira, A; Costa, M; Lourenço, L; Branco, J; Cardoso, M; Anapaz, V; Alexandrino, G; Figueiredo, L; Rafael, M
    2018Book Open access Show more
  • Abordagem multidisciplinar de lesão esplénica: um desafio diagnóstico
    Publication . Gomes, F; Schmitt, W; Branco, J; Aparício, D; Ferreira, M; Dutschmann, R
    2015Conference object Restricted access Show more
  • Abordagem terapêutica do polipo maligno
    Publication . Deus, JR
    A designação de polipo maligno significa a presença de um adenoma com um foco de carcinoma que invade a submucosa (carcinoma invasivo). Este tempo é habitualmente utilizado quando um polipo que foi ressecado por via endoscópica, se vem a comprovar, após exame histológico, conter carcinoma invasivo. A incidência de polipos malignos, removidos endoscopicamente, é em média de 4,7% (0,2-9,4%). O risco de malignidade está associado à dimensão, localização e configuração histológica. A abordagem terapêutica dum polipo maligno varia entre uma atitude conservadora, considerando a polipectomia tratamento adequado e suficiente e uma atitude cirúrgica de ressecção complementar, no caso contrário. A ressecção cirúrgica deverá tomar em conta os riscos potenciais de carcinoma residual e/ ou metastático da lesão excisada em comparação com o risco potencial, em termos de mobilidade e mortalidade, do próprio acto cirúrgico. A ressecção endoscópica de um polipo maligno pediculado, constitui habitualmente tratamento curativo, desde que esteja assegurada a sua excisão completa, com uma margem livre de ressecção e que o carcinoma não seja pouco diferenciado ou indiferenciado (grau III) e não exista invasão linfática ou vascular. O risco de doença metastática nesta situação é de 0,3%. Um polipo maligno sessil ressecado endoscopicamente possui maior risco de metastização (1,5%), mesmo com critérios histológicos favoráveis. A ressecção cirúrgica complementar deverá ser contemplada, em doentes cujo risco cirúrgico seja inferior ao risco de metastização. Cada caso deverá ser considerado individualmente, devendo a abordagem terapêutica ser devidamente ponderada pelos médicos intervenientes (gastrenterologista, anatomopatologista, cirurgião), em função dos riscos e beneficio de eventual ressecção cirúrgica complementar, após discussão com o doente e/ ou seus familiares.
    2005Journal article Open access Show more
  • Accuracy of Faecal Calprotectin and Neutrophil Gelatinase B-associated Lipocalin in Evaluating Subclinical Inflammation in UlceRaTIVE Colitis-the ACERTIVE study.
    Publication . Magro, F; Lopes, S; Coelho, R; Cotter, J; Castro, F; Sousa, H; Salgado, M; Andrade, P; Vieira, A; Figueiredo, P; Caldeira, P; Sousa, A; Duarte, M; Ávila, F; Silva, J; Moleiro, J; Mendes, S; Giestas, S; Ministro, P; Sousa, P; Gonçalves, R; Gonçalves, B; Oliveira, A; Chagas, C; Torres, J; Dias, C; Lopes, J; Borralho, P; Afonso, J; Geboes, K; Carneiro, F; Portuguese IBD Study Group [GEDII].
    BACKGROUND AND AIMS: Mucosal healing and histological remission are different targets for patients with ulcerative colitis, but both rely on an invasive endoscopic procedure. This study aimed to assess faecal calprotectin and neutrophil gelatinase B-associated lipocalin as biomarkers for disease activity in asymptomatic ulcerative colitis patients. METHODS: This was a multicentric cross-sectional study including 371 patients, who were classified according to their endoscopic and histological scores. These results were evaluated alongside the faecal levels of both biomarkers. RESULTS: Macroscopic lesions [i.e. endoscopic Mayo score ≥1] were present in 28% of the patients, and 9% had active disease according to fht Ulcerative Colitis Endoscopic Index of Severity. Moreover, 21% presented with histological inflammation according to the Geboes index, whereas 15% and 5% presented with focal and diffuse basal plasmacytosis, respectively. The faecal levels of calprotectin and neutrophil gelatinase B-associated lipocalin were statistically higher for patients with endoscopic lesions and histological activity. A receiver operating characteristic-based analysis revealed that both biomarkers were able to indicate mucosal healing and histological remission with an acceptable probability, and cut-off levels of 150-250 μg/g for faecal calprotectin and 12 μg/g for neutrophil gelatinase B-associated lipocalin were proposed. CONCLUSIONS: Faecal calprotectin and neutrophil gelatinase B-associated lipocalin levels are a valuable addition for assessment of disease activity in asymptomatic ulcerative colitis patients. Biological levels of the analysed biomarkers below the proposed thresholds can rule out the presence of macroscopic and microscopic lesions with a probability of 75-93%. However, caution should be applied whenever interpreting positive results, as these biomarkers present consistently low positive predictive values.
    2017Journal article Open access Show more
  • 2017Conference object Open access Show more
  • Actinomycosis Causing Recurrent Perianal Fistulae
    Publication . Cardoso, M; Carneiro, C; Lourenço, L; Rodrigues, C; Alberto, S; João, A; Rocha, R; Geraldes, V; Costa, A; Reis, J; Nunes, V
    Actinomycosis is a rare but easily curable infection that should be considered in the differential diagnosis of perianal fistulizing disease. We present the case of a 26-year-old woman with complex perianal fistulae, including trans-sphincteric and suprasphincteric fistulous tracts and a rectovaginal fistula, requiring multiple abscess drainages, seton placement, and antibiotic courses, with little improvement. After extensive investigation, Actinomyces spp. was identified in anal cytology. The patient underwent a 6-week course of intravenous penicillin followed by oral amoxicillin, with remarkable improvement. This case illustrates the importance of pursuing less common diagnoses in refractory complex perianal disease, such as actinomycosis.
    2017Journal article Open access Show more
  • Acute Hepatitis in the DRESS Syndrome
    Publication . Oliveira, AM; Carvalho, R; Martins, A; Reis, J
    Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a severe, idiosyncratic reaction characterized by diffuse maculopapular rash, facial edema, lym- phadenopathy, fever, eosinophilia and/or other leukocyte abnormalities, and involvement of internal organs as liver, kidney, heart and lung. Diagnosing this entity is specifically complicated due to the multiplicity of organs involved. DRESS syndrome must be recognized promptly and the causative drug withdrawn in order to improve patient outcomes. Indeed, it is a potentially life-threatening condition, with a reported mortality between 5 and 20%. We describe a case of a 22-year old woman admitted to our hospital with acute diffuse, pruritic rash associated with crampy abdominal pain, vomiting, diarrhea and fever three weeks after starting sulfasalazine therapy. Initially, laboratory parameters revealed normal white blood cell count and normal liver enzymes, but during hospitalization, eosinophilia developed and liver enzymes, including transaminases and cholestatic parameters, dramatically increased. The diagnostic of DRESS syn- drome was made and sulfasalazine was withdrawn and as there were signs of disease severity, systemic corticotherapy was initiated, with gradually improvement of the rash and symptoms resolution. The patient was discharged home after thirty days of hospitalization.
    2016Journal article Open access Show more
  • Acute-on-chronic liver failure
    Publication . Cardoso, M
    2017Conference object Open access Show more
  • 2012Periodical Open access Show more
  • An exceptional cause of drug-induced colitis: cholestyramine.
    Publication . Branco, J; Alexandrino, G; Alves, A; Reis, J
    2018Journal article Open access Show more