Search

ABSTRACT Background: Fistulizing perianal Crohn’s disease poses a treatment challenge, and researchers postulate that this phenotype in young male patients could have a worst outcome. Objective: Thus, the aim of this study was to assess whether sex influences the response to treatment for these patients. Methods: This systematic review (PROSPERO CRD42022319629) was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses protocol. We selected articles published in English, Spanish, Portuguese, and Italian between 2010 and 2020 in the PubMed and Science Direct databases. According to the PICO acronym, prospective studies in patients older than 18 years with the objective of treating fistulizing perianal Crohn’s disease were selected. Studies in pediatric populations, retrospective, without treatment objectives, and that included only rectovaginal fistulas or a single sex were excluded. Study quality was assessed using the Cochrane risk of bias tool and Newcastle-Ottawa scale. Results: Of the 1887 articles found, 33 were included. Most studies used anti-TNF drugs as treatment (n=11). Ten studies had subgroup analyses; of them, the two studies reporting sex differences used infliximab and adalimumab as treatment and showed that women had a longer fistula closure time than men. Conclusion: This systematic review showed that few data corroborate the difference between sexes in the treatment of fistulizing perianal Crohn’s disease, possibly having a greater relationship with the phenotype. However, considering the lack of results, further studies with this objective and with standardization of fistulas and response assessment methods are needed.

ABSTRACT BACKGROUND: A healthy diet is recommended for patients with Crohn’s disease (CD) in remission. OBJECTIVE: To evaluate the diet quality of patients with CD. METHODS: Cross-sectional study with patients with CD and clinical remission using the biological agent infliximab. The diet quality was assessed using the Diet Quality Index-Revised (DQI-R). DQI-R was calculated based on 24-hour dietary recalls (24HR), being classified as “inadequate diet” (≤40 points), “diet requiring modifications” (41 to 64 points) and “healthy diet” (≥65 points). Weight, height and waist circumference (WC) of patients were assessed. For comparison between groups, Student’s t-test or Mann-Whitney was used. For correlation between continuous variables, Pearson or Spearman coefficient was used. Values of P

ABSTRACT BACKGROUND: Ileitis is defined as ileal inflammation, with several etiologies, including inflammatory bowel disease (IBD), and can be evaluated during the colonoscopy exam, but its mandatory evaluation is discussed, because of few diagnosis and procedure time. OBJECTIVE: This study aims to evaluate the correlation of colonoscopic ileitis with the clinical presentation, in order to identify the cases where ileal examination is mandatory. METHODS: A retrospective, cross-sectional study was conducted between 2013 and 2017. The examination report, indications for colonoscopy, and medical records were evaluated in order to identify whether the colonoscopic findings were clinically significant. Patients over 18 years of age who had undergone ileoscopy were included, whereas patients below 18 years of age, those with previous intestinal resections, and repeated examinations of the same patient in the study period were excluded. The estimated association measure was the odds ratio with 95% confidence intervals. P-values

ABSTRACT BACKGROUND: Ileitis is defined as an inflammation of the ileum, which is evaluated during colonoscopy. Biopsies should be performed on altered ileus, aiding to the diagnosis. OBJECTIVE: Evaluate the correlation of anatomopathological findings on ileitis between pathologists and endoscopists. METHODS: A retrospective, cross-sectional study, between 2013 and 2017. Examination report, indications for colonoscopy, and medical records were evaluated to identify whether the colonoscopic findings were clinically significant. Anatomopathological samples were reviewed by a pathologist expert in gastrointestinal tract. Patients over 18 years of age who had undergone ileoscopy were included, whereas patients below 18 years of age and those with previous intestinal resections were excluded. The correlation was assessed using the kappa coefficient index. RESULTS: A total of 5833 colonoscopies were conducted in the study period and 3880 cases were included. Ileal alterations were observed in 206 cases, with 2.94% being clinically significant. A hundred and sixty three biopsies were evaluated using the kappa index, resulting in agreement among pathologists of 0.067 and among pathologist and endoscopist of 0.141. CONCLUSION: It was observed that despite the low concordance between pathologists and endoscopists, there was no change in patient outcomes. This study confirms the importance of knowledge of the main anatomopathological changes related to ileitis by pathologists and endoscopists, making the best diagnosis and follow-up.

CONTEXT: Acromegalic patients have better chances to develop colorectal polyps and cancer and, considered a high-risk group, need to undergo frequent screening examinations. Moreover, in acromegalia, the increased bowel length and the intestinal loop complexity can lead to higher levels of technical difficulties and increase the risks of complications at conventional colonoscopy. Computed tomographic colonography, also known as virtual colonoscopy, is an innovative and secure technology which is revolutionizing the diagnosis of colon and rectum neoplasias. OBJECTIVE: To analyze computed tomographic colonography performance for the screening of colorectal polyps in acromegalic patients. METHODS: A prospective study of 21 asymptomatic acromegalic patients, 12 male and 9 female, average age 49, who underwent computed tomographic colonography and conventional colonoscopy. Computed tomographic colonography was performed with a GE Helical Multislice Computed Tomography Apparatus. Conventional colonoscopy was performed in the same day, without previous knowledge of the computed tomographic colonography diagnostics. The study evaluated the capacity of computed tomographic colonography to detect patients with colorectal polyps and identify each colorectal lesion described by the colonoscopy. RESULTS: In two patients (2/21), conventional colonoscopy was incomplete. However, in all patients computed tomographic colonography was complete. In Phase I ("per patient"), computed tomographic colonography diagnosed eight of the nine patients with colorectal polyps and showed 88% sensitivity, 75% specificity and 81% accuracy. In Phase II ("per polyp"), out of the 21 acromegalic patients included in this study, 12 presented normal findings at conventional colonoscopy. A total of 19 polyps were identified in 9 patients. Ten of the 19 polyps were smaller than 10 mm, and 9 were equal to or larger than 10 mm. Computed tomographic colonography identified 7 of the 9 polyps >10 mm described by conventional colonoscopy and only 6 of the 10 small polyps identified at conventional colonoscopy were detected by computed tomographic colonography. The histological analysis of resected lesions revealed 12 tubular adenomas, 6 hyperplastic polyps and 1 colonic tubulo-villous adenoma with an adenocarcinoma focus. CONCLUSION: The authors present the first reports of computed tomographic colonography in the screening of colorectal polyps in acromegalic patients. In this study, computed tomographic colonography was performed without complications and a complete and safe colorectal evaluation was possible in all acromegalic patients. Moreover, computed tomographic colonography presented good sensitivity, specificity and accuracy for the identification of acromegalic patients with polyps of any size and better results in the diagnosis of large polyps, when they were compared to small polypoid lesions.CONTEXTO: Pacientes com acromegalia apresentam maiores chances de desenvolver pólipo e câncer colorretal e, sendo considerados integrantes do grupo de risco, necessitam serem submetidos aos exames de rastreamento. Por sua vez, na acromegalia, o maior comprimento do cólon e a formação de alças intestinais complexas podem prever maiores dificuldades técnicas e aumentar o risco em potencial de complicações durante o exame de colonoscopia convencional. A colonografia tomográfica computadorizada, também denominada colonoscopia virtual, é uma tecnologia inovadora e segura, que está revolucionando o diagnóstico das neoplasias do cólon e do reto. OBJETIVO: Analisar o desempenho da colonografia tomográfica computadorizada no rastreamento de pólipos colorretais em pacientes com acromegalia. Métodos - Estudo prospectivo com 21 pacientes acromegálicos, 12 do sexo masculino e 9 do sexo feminino, idade média de 49 anos, assintomáticos, submetidos a colonografia tomográfica computadorizada e colonoscopia convencional. A colonografia tomográfica computadorizada foi realizada com aparelho de tomografia computadorizada helicoidal multislice da marca GE. A colonoscopia convencional foi realizada, no mesmo dia, sem prévio conhecimento do diagnóstico da colonografia tomográfica computadorizada. O estudo avaliou a capacidade da colonografia tomográfica computadorizada para detectar pacientes acromegálicos com pólipos colorretais e a identificação de cada lesão colorretal descrita pela colonoscopia. RESULTADOS: Em dois pacientes (2/21) a colonoscopia convencional foi incompleta. Entretanto, em todos os pacientes a colonografia tomográfica computadorizada foi completa na avaliação colorretal. Na primeira fase ("por paciente"), a colonografia tomográfica computadorizada diagnosticou oito de nove pacientes com pólipos colorretais e mostrou 88% de sensibilidade, 75% de especificidade e 81% de precisão. Na segunda fase ("por pólipo"), dos 21 pacientes acromegálicos incluídos no estudo, 12 apresentaram colonoscopia convencional normal. Um total de 19 pólipos foram identificados em 9 pacientes. Dez dos 19 pólipos eram menores que 10 mm e 9 foram iguais ou maiores que 10 mm. A colonografia tomográfica computadorizada identificou 7 dos 9 pólipos >10 mm descritos pela colonoscopia convencional e somente 6 dos 10 pólipos pequenos detectados pela colonoscopia convencional. A análise histológica das lesões ressecadas revelaram 12 adenomas tubulares, 6 pólipos hiperplásicos e 1 adenoma túbulo-viloso com um foco de adenocarcinoma. CONCLUSÃO: São apresentados os primeiros relatos da realização de colonografia tomográfica computadorizada no rastreamento de pólipos colorretais em doentes com de acromegalia. Neste estudo, a colonografia tomográfica computadorizada realizou avaliação colorretal completa e sem complicações em todos os pacientes acromegálicos. A colonografia tomográfica computadorizada apresentou boa sensibilidade, especificidade e precisão para identificar pacientes acromegálicos com presença de pólipos colorretais de qualquer diâmetro e melhores resultados no diagnóstico de pólipos grandes quando comparados com pequenas lesões polipóides.

RACIONAL: Doses excessivas de aminoácidos básicos como a L-arginina têm a capacidade de lesar o pâncreas de ratos. OBJETIVO: Descrever e avaliar as características bioquímicas e histológicas da pancreatite aguda induzida pela L-arginina em ratos durante a instalação, desenvolvimento e reparação do processo inflamatório pancreático. MATERIAL E MÉTODOS: A amostra constituiu-se de 105 ratos machos, da linhagem Wistar. Aos ratos do grupo experimento (n = 70) administrou-se injeção intraperitonial de 500 mg/100 g de peso corporal de L-arginina. No grupo controle (n = 35) foi injetada solução salina isotônica. Analisaram-se 10 animais do grupo experimento e 5 do grupo controle em cada período de 6 h, 12 h, 24 h, 48 h, 72 h, 7 dias e 14 dias. Durante os tempos determinados coletou-se sangue para exames laboratoriais e o pâncreas para análise em microscopia óptica. RESULTADOS: Doze a 24 horas após a injeção de L-arginina os níveis séricos de amilase atingiram valores máximos, comparados àqueles dos ratos controle, decrescendo gradualmente, alcançou-os na 48ªhora sendo significativamente menor após 72 horas e 7 dias. A atividade enzimática retornou a níveis basais após 14 dias. Os valores de amilase estavam normais em todos os tempos avaliados nos animais do grupo controle. Na microscopia óptica, após injeção de L-arginina, observou-se arquitetura pancreática histologicamente preservada no período de 6 horas, evidenciando-se em 24 horas importante edema intersticial. Após 48 horas, a arquitetura acinar estava parcialmente destruída com necrose celular focal, atingindo sua máxima severidade ao ultrapassar 72 horas. No 7º dia a necrose tecidual e o edema haviam diminuído, iniciando-se a regeneração da arquitetura acinar. Observou-se a reconstrução estrutural pancreática após 14 dias. No grupo controle não se encontraram alterações histológicas pancreáticas. CONCLUSÃO: A pancreatite aguda experimental induzida pela L-arginina induz a necrose pancreática, apresentando evolução auto-limitada com regeneração do pâncreas em 2 semanas.BACKGROUND: Excessive doses of basic amino acids such as L-arginine are able to injure the pancreas of rats. AIM: To describe and evaluate the biochemical and histological characteristics of acute pancreatitis in rats induced by L-arginine during the installation, development and repair stages of the pancreatic inflammatory process. MATERIAL AND METHODS - The study group consisted of 105 male Wistar rats. The rats in the experimental group (n = 70) received 500 mg/100 g of corporal weight L-arginine injection intraperitoneally. In the control group (n = 35), isotonic saline solution was injected. Ten rats in the experiment group and five in the control group were analyzed after 6, 12, 24, 48, and 72 hours, on the 7th and 14th days. During those times, blood samples were collected for laboratory testing and samples from the pancreas were collected for an optical microscopy analysis. RESULTS: From 12 to 24 hours after the injection of L-arginine, the amylase serum levels raised to their peak values when compared to the rats in the control group, decreasing gradually, reaching an equal level after the 48th hour and being significantly lower after 72 hours and 7 days. The enzymatic activity returned to its basal level after 14 days. The amylase values were normal in all the times evaluated in the control group. In optical microscopy, after the injection of L-arginine, a pancreatic architecture histologically preserved was observed after 6 hours, evidencing an important interstitial edema in 24 hours. After 48 hours, the acinar architecture was partially destroyed with focal cellular necrosis, reaching its maximum severity after 72 hours. On the 7th, the tissue necrosis and the edema had diminished, and the regeneration of the acinar architecture initiated. The pancreatic structural reconstruction could be observed after 14 days. Pancreatic histological changes were not found in the control group. CONCLUSION: - Experimental acute pancreatitis induced by L-arginine leads to pancreatic necrosis showing self-limited evolution with pancreas regeneration in 2 weeks.