The epidemiological and clinical features of familial adenomatous polyposis in Ribeirão Preto

AbstractPurposeto study 75 familial adenomatous polyposis (FAP) patients treated in a single insti- tution in Ribeirão Preto/SP, from January 1981 to December 2011.Methodsthis is a retrospective study and the following data were collected: gender, age, main symptoms, familial history, coexisting malignancies, surgical treatment, surgical morbidity and mortality, factors related to life quality.Resultsmedian age was 29 years. Male-to-female ratio was 1.2:1. Bleeding was the most common symptom (62.6%). Colorectal cancer incidence was 25.5% (n = 19). Extracolonic neoplasia incidence was 8%. Colectomy with ileorectal anastomosis (IRA) was performed in 72% of the patients. Eighteen patients (24%) were submitted to proctocolectomy with “J-pouch” ileoanal anastomosis. In three patients (4%) proctocolectomy with terminal il- eostomy was performed. Early and late complication rate were similar (22.7% × 24%). Ileal pouch surgery exhibited tendency to a higher morbidity and mortality but no significance could be found. Overall mortality rate was 7.46%. Malignant neoplasia was the main cause of mortality, accounting for 60% of deaths.ConclusionFAP is a rare pathology in our country. Genetic counseling and proper screening programs are essential tools to early diagnosis and follow-up. Surgery is the most effective treatment and the best option to prevent malignant neoplasia

Association between celiac disease and Crohn's disease - a challenge to the coloproctologist

Over the past few years, many studies on the association between celiac disease and inflammatory bowel disease have been reported. The genetic origin of this association has prompted research that searches for a common link for the concomitant manifestation of these pathologies. Clinical studies aim not only to demonstrate this relation, but also to establish the epidemiological frequencies among affected individuals and their relatives as compared to the general population. The similar clinical symptoms, difficulties, diagnoses, and therapeutics are still a challenge, since this association is unknown to most coloproctologists, thereby culminating in treatments and surgical procedures with no benefits for the patient.Nos últimos anos, muitos estudos foram relatados sobre a associação entre a doença celíaca e as doenças inflamatórias intestinais. A origem genética dessa associação desperta pesquisas que buscam o elo comum para a manifestação concomitante das patologias. Estudos clínicos visam não apenas demonstrar essa relação mas também estabelecer as frequências epidemiológicas entre os indivíduos acometidos e seus familiares em relação à população geral. À semelhança do quadro clínico, as dificuldades diagnósticas e terapêuticas são ainda desafios, já que tal associação ainda é desconhecida para a maioria dos coloproctologistas, podendo resultar em tratamentos e cirurgias sem benefícios ao paciente

Proctocolectomy and ileal J-pouch anal anastomosis on the surgical treatment of familial adenomatous polyposis and ulcerative colitis: analysis of 49 cases

OBJECTIVE: To evaluate the results of ileal J-pouch anal anastomosis in ulcerative colitis and familial adenomatous polyposis. METHOD: Retrospective analysis of medical records of 49 patients submitted to ileal J-pouch anal anastomosis. RESULTS: Ulcerative colitis was diagnosed in 65% and familial adenomatous polyposis in 34%. Mean age was 39.5 years. 43% were male. Among familial adenomatous polyposis, 61% were diagnosed with colorectal cancer. Thirty-one percent of patients with ulcerative colitis was submitted to a previous surgical approach and 21% of these had toxic megacolon. Average hospital stay was 10 days. Post-operative complications occurred in 50% of patients with ulcerative colitis and 29.4% with familial adenomatous polyposis. Intestinal diversion was performed in 100% of ulcerative colitis and 88% of familial adenomatous polyposis. Pouchitis occurred in eight cases (seven ulcerative colitis and one FAP), requiring excision of the pouch in three ulcerative colitis. Mortality rate was 7.6%: two cases of carcinoma on the pouch and two post-operative complications. Late post-operative complications occurred in 22.4%: six familial adenomatous polyposis and five ulcerative colitis). Two patients had erectile dysfunction, and one retrograde ejaculation. One patient with severe perineal dermatitis was submitted to excision of the pouch. Incontinence occurred in four patients and two reported soil. Mean bowel movement was five times a day. CONCLUSION: Ileal J-pouch anal anastomosis is a safe surgery with acceptable morbidity and good functional results, if well indicated and performed in referral centers

Colorectal cancer awareness among patients from the Unified Health System and medical students in Ribeirao Preto

Introdução: O aumento das taxas de incidência e mortalidade por câncer colorretal (CCR) no Brasil pode ter sido consequência do processo de transição socioeconômica do país, com maior exposição aos fatores de risco. No entanto, fatores como o desconhecimento a respeito das estratégias de prevenção primária e secundária podem ter contribuído para o aumento do impacto da doença. Objetivos: Avaliar o grau de conhecimento a respeito do CCR em pacientes do Sistema Único de Saúde (SUS) e alunos da Faculdade de Medicina de Ribeirão Preto (FMRP) e caracterizar a realidade do programa de rastreamento no município de Ribeirão Preto. Métodos: Trata-se de um estudo transversal, onde se aplicou um questionário próprio, elaborado a partir de um caso clínico contendo sinais de alarme do CCR a fim de investigar o conhecimento sobre a doença. Foram entrevistados 1000 pacientes do SUS de Ribeirão Preto e 134 alunos da FMRP, no período de janeiro de 2015 a março de 2016. Resultados: Comparados aos alunos, os pacientes entrevistados apresentaram menor capacidade de diagnosticar o CCR (8% x 94,8%; p= 50 anos, sexo feminino, história familiar prévia de CCR e nível de escolaridade mais elevado foram variáveis independentes associadas a um maior grau de conhecimento a respeito da doença. Na amostra de pacientes com idade >= 50 anos, apenas 11,1% havia realizado algum teste de rastreamento e apenas 0,2% havia recebido informações prévias sobre a doença. Conclusões: O nível de conhecimento a respeito do diagnóstico, fatores de risco e métodos complementares de prevenção do CCR foi baixo entre os pacientes e adequado no grupo de alunos. Idade maior ou igual a 50 anos, sexo feminino, história familiar prévia de CCR e nível de escolaridade elevado foram fatores associados a um maior grau de conhecimento sobre a doença. Observou-se baixa taxa de realização de exames de rastreamento para o CCR.Introduction: The increasing burden of colorectal cancer (CRC) in Brazil may be a consequence of the socio-economic transition with higher exposure to risk factors. In addition, low levels of CRC awareness and lack of a screening program may have been responsible for the high CRC incidence and mortality rates in Ribeirão Preto. Objectives: (1) to evaluate CRC awareness among patients from the Unified Health System and medical students from Ribeirao Preto Medical School, and (2) to investigate screening practices in the city. Methods: We conducted face-to-face interviews with a questionnaire prepared by the authors, from January 2015 to March 2016. A total of 1000 users and 134 medical students were interviewed. Results: Compared to medical students, the ability to diagnose CRC was lower among patients (8% x 94.8%; p= 50 years old, sex (female), family history of CCR and higher education levels were significantly associated with increased CRC awareness. Four hundred and seven patients were considered eligible to CRC screening; however, only 11.1% had already performed any method. Only 0.2% of the patients had been previously exposed to any kind of information about CRC. Conclusions: CRC awareness was very low among Health System users and adequate among medical students. Age >= 50 years old, sex (female), family history of CCR and higher education levels were independent predictors of increased knowledge among patients. Low rates of screening were observed in the city

A review of experimental models in colorectal carcinogenesis

Colorectal cancer is the leading cause of malignancy of the gastrointestinal tract. A better understanding of the molecular and cellular changes that lead to the disease is necessary to develop early diagnosis and optimal treatment modalities. Rodent models are rapid, reproducible and exhibit an adenoma-carcinoma sequence similar to that found in humans. The objective of this manuscript is to review the most common chemical carcinogens used to induce experimental tumors and the usual methods of evaluation. Resumo: O câncer colorretal é a principal neoplasia maligna do trato gastrointestinal. Um melhor entendimento dos processos moleculares e celulares é necessário para o desenvolvimento de estratégias que permitam um diagnóstico precoce e um tratamento mais eficaz. Modelos que utilizam roedores são rápidos, reprodutíveis e permitem o estudo da sequencia adenoma-carcinoma de forma similar a encontrada em humanos. O objetivo desse manuscrito é revisar os principais modelos de carcinogênese química e os métodos mais usuais para avaliação dos resultados. Keywords: Animal models, Colorectal neoplasms, Diagnosis, Palavras-chave: Modelos animais, Neoplasias colorretais, Diagnóstic