Duplo Piloro: Estudo de caso e revisão da literatura

Duplo piloro é condição rara em que se forma dupla comunicação entre o antro gástrico e o bulbo duodenal. Pode ser congênito ou adquirido como complicação de doença cloridropéptica. Apresentamos caso de duplo piloro adquirido em paciente masculino com epigastralgia e história prévia de úlcera péptica. A pesquisa do Helicobacter pylori foi positiva em amostras de tecido gástrico. Foi realizada revisão da literatura e discutido o papel de doenças associadas e do Helicobacter pylori na etiopatogenia desta afecção.Double pylorus is an unusual condition in which a double communication between the gastric antrum and the duodenal bulb occurs. It may be congenital, or it may be acquired complication of peptic ulcer disease. We present a case of double pylorus in a gentleman with epigastric pain and previous history of peptic ulcer disease. The relationship between Helicobacter pylori and this disease was assessed. A review of the literature, the role of associated diseases and the role of H. pylori are discussed

Economic evaluations of colorectal cancer screening: A systematic review and quality assessment

Colorectal Cancer (CRC) is the third most common type of cancer worldwide and ranks second in mortality. Screening programs for early detection and treatment have been implemented in several countries. Economic evaluations are an important tool to support decision-making about reimbursement and coverage decisions in health systems and, therefore, to support efficient resource allocation. The article aims to review the up-to-date evidence on economic evaluations of CRC screening strategies. MEDLINE, EMBASE, Web of Science, SCOPUS, SciELO, Lilacs, CRD databases, and lists of references were reviewed to identify relevant literature regarding full economic evaluations of CRC screening in asymptomatic average-risk individuals over 40 years old. Searches were conducted with no restriction to language, setting, or date. Qualitative syntheses described CRC screening strategies and comparators (baseline context), study designs, key parameter inputs and incremental cost-effectiveness ratios. Seventy-nine articles were included. Most of the studies were from high-income countries and a third-party payer perspective. Markov models were predominantly used, although microsimulation has been increasingly adopted in the last 15 years. The authors found 88 different screening strategies for CRC, which differed in the type of technique, the interval of screening, and the strategy, i.e., isolated or combined. The annual fecal immunochemical test was the most predominant screening strategy. All studies reported cost-effective results in their scenarios compared to no screening scenarios. One-quarter of the publications reported cost-saving results. It is still necessary to develop future economic evaluations in Low- and Middle-Income Countries (LMICs), which account for the high burden of disease

Mucin pattern reflects the origin of the adenocarcinoma in Barrett's esophagus: a retrospective clinical and laboratorial study

<p>Abstract</p> <p>Background</p> <p>Mucin immunoexpression in adenocarcinoma arising in Barrett's esophagus (BE) may indicate the carcinogenesis pathway. The aim of this study was to evaluate resected specimens of adenocarcinoma in BE for the pattern of mucins and to correlate to the histologic classification.</p> <p>Methods</p> <p>Specimens were retrospectively collected from thirteen patients who underwent esophageal resection due to adenocarcinoma in BE. Sections were scored for the grade of intestinal metaplasia. The tissues were examined by immunohistochemistry for MUC2 and MUC5AC antibodies.</p> <p>Results</p> <p>Eleven patients were men. The mean age was 61 years old (varied from 40 to 75 years old). The tumor size had a mean of 4.7 ± 2.3 cm, and the extension of BE had a mean of 7.7 ± 1.5 cm. Specialized epithelium with intestinal metaplasia was present in all adjacent mucosas. Immunohistochemistry for MUC2 showed immunoreactivity in goblet cells, while MUC5AC was extensively expressed in the columnar gastric cells, localizing to the surface epithelium and extending to a variable degree into the glandular structures in BE. Tumors were classified according to the mucins in gastric type in 7/13 (MUC5AC positive) and intestinal type in 4/13 (MUC2 positive). Two tumors did not express MUC2 or MUC5AC proteins. The pattern of mucin predominantly expressed in the adjacent epithelium was associated to the mucin expression profile in the tumors, p = 0.047.</p> <p>Conclusion</p> <p>Barrett's esophagus adenocarcinoma shows either gastric or intestinal type pattern of mucin expression. The two types of tumors developed in Barrett's esophagus may reflect the original cell type involved in the malignant transformation.</p

Squamous cell carcinoma of the esophagus and multiple primary tumors of the upper aerodigestive tract Carcinoma epidermoide do esôfago e múltiplos tumores primários do trato aerodigestivo alto

Squamous cell carcinoma of the esophagus is frequently associated with other, synchronous or metachronous tumors, in the upper aerodigestive tract. All 264 patients with squamous cell carcinoma of the esophagus, treated in the Gastrointestinal Surgery, Esophagus section, of the "Hospital das Clínicas" (São Paulo University Medical School, Brazil), between 1979 and 1989 were analyzed retrospectively with regards to the occurrence of multiple primary tumors in the upper aerodigestive tract. Multiple primary tumors were encountered in 10 (3.8%) patients. All patients were male and the mean age at the time of the first primary was 52.2 years. Tobacco smoke and alcohol were the principal carcinogens in these patients (n = 10). The sites of the tumors were: larynx (n = 4), tongue (n = 4), lung (n = 2), and oral cavity (n = 1). Two simultaneous, three synchronous and five metachronous multiple primary carcinomas were detected. The esophagus was the second primary tumor in nine patients. The mean overall survival after the diagnosis of the second primary was 2.8 months (SD = 0.89). Inquiry regarding other malignancies, associated with panendoscopy should be carry out prior to the treatment of the first primary to diagnose simultaneous or synchronous primary tumors, and careful follow-up should be performed after treatment of the first primary to detect new tumors in these high-risk patients.<br>Carcinoma epidermóide do esôfago está freqüentemente associado a outros, sincrônicos ou metacrônicos tumores do trato aerodigestivo alto. Foram analisados, retrospectivamente, 264 pacientes com carcinoma de esôfago tratados na Disciplina de Cirurgia do Aparelho Digestivo, Divisão de Cirurgia do Esôfago, do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, entre 1979 e 1989, com o intuito de se observar a ocorrência de múltiplos tumores primários do trato aerodigestivo alto. Observaram-se 10 (3.8%) pacientes com múltiplos tumores primários. Todos eram do sexo masculino e a média de idade ao tempo do primeiro tumor foi 52.2 anos. Os locais dos tumores primários foram: laringe (n = 4), língua (n = 3), pulmão (n =2), cavidade oral (n = 1) e esôfago (n = 1). Dois tumores eram simultâneos, três sincrônicos e cinco metacrônicos. O esôfago foi o segundo tumor primário em nove pacientes. A sobrevida média depois do diagnóstico do segundo tumor primário foi de apenas 2.8 meses (DP = 0.89). Na tentativa de se diagnosticar outros tumores, o exame clínico associado com panendoscopia deve ser realizado antes de se tratar o tumor inicial, a fim de que se possa diagnosticar tumores simultâneos ou sincrônicos. Ademais, deve ser realizado cuidadoso seguimento após o tratamento do primeiro tumor pois estes pacientes apresentam risco de aparecimento de novos tumores

Enteroscopia asistida por dispositivos en Enfermedad de Crohn

El advenimiento de la enteroscopia asistida con dispositivos (EAD) ha permitido la evaluación endoscópica del intestino delgado mejorando enormemente la profundidad de inserción y el rendimiento diagnóstico convirtiéndose en una técnica de interés específico en el enfoque diagnóstico y terapéutico de pacientes con enfermedad inflamatoria intestinal permitiendo la evaluación diagnóstica de la extensión y gravedad de la enfermedad intestinal y las complicaciones, con un impacto en el manejo terapéutico. Esta revisión tiene como objetivo proporcionar información descriptiva de los datos de la literatura sobre el uso de la enteroscopia en la enfermedad inflamatoria intestinal y en particular, en la enfermedad de Crohn