Necrosis esofágica aguda (esófago negro) asociado a neoplasias digestivas / Acute esophageal necrosis (black esophagus) associated with digestive neoplasms

INTRODUCCIÓN. La necrosis esofágica aguda es un síndrome raro que se caracteriza endoscópicamente por una apariencia negra circunferencial irregular o difusa de la mucosa esofágica intratorácica, la afectación es generalmente del esófago distal y la transición abrupta de mucosa normal en la unión gastroesofágica, con extensión proximal variable. CASOS. Se presentan dos casos con diferentes comorbiliades, presentación de signos y síntomas, antecedentes y tratamiento, teniendo en común el diagnóstico a través de endoscopía digestiva alta. RESULTADOS. Caso clínico 1: tratamiento clínico basado en hidratación, suspensión de vía oral, omeprazol intravenoso y sucralfato; mala evolución clínica caracterizada por: disfagia, intolerancia oral y recurrencia del sangrado digestivo alto, se realiza colocación de gastrostomía endoscópica. Caso clínico 2: esófago con mucosa con fibrina y parches de necrosis extensa, se realiza compensación tanto de foco infeccioso pulmonar como hidratación y nutrición, en estudios complementarios se observa masa colónica, con estudio histopatológico confirmatorio de adenocarcinoma de colon en estado avanzado. DISCUSIÓN. La esofagitis necrotizante aguda es una entidad inusual, de baja prevalencia e incidencia, asociada con estados de hipoperfusión sistémica y múltiples comorbilidades que favorezcan un sustrato isquémico. Al revisar los reportes de casos que hay en la literatura médica, los casos que reportamos se correlaciona con las características clínicas, epidemiológicas, endoscópicas y factores de riesgo causales de la enfermedad. La presentación clínica más frecuente es el sangrado digestivo alto, que se debe correlacionar con el hallazgo endoscópico clásico. Nuestro primer caso reportado termina con la colocación de una gastrostomía para poder alimentarse. CONCLUSIÓN. El pronóstico de la necrosis esofágica aguda es malo y se requiere un alto índice de sospecha clínica y conocimiento de esta infrecuente patología para un diagnóstico temprano y un manejo oportuno. Se requiere una evaluación por endoscopia digestiva alta. Es una causa de sangrado gastrointestinal que conlleva tasas altas de mortalidad, principalmente en adultos mayores frágiles. El reconocimiento temprano y la reanimación agresiva son los principios fundamentales para un mejor resultado de la enfermedad.

INTRODUCTION. Acute esophageal necrosis is a rare syndrome that is characterized endoscopically by an irregular or diffuse circumferential black appearance of the intrathoracic esophageal mucosa, the involvement is generally of the distal esophagus and the abrupt transition of normal mucosa at the gastroesophageal junction, with variable proximal extension. CASES. Two cases are presented with different comorbidities, presentation of signs and symptoms, history and treatment, having in common the diagnosis through upper gastrointestinal endoscopy. RESULTS. Clinical case 1: clinical treatment based on hydration, oral suspension, intravenous omeprazole and sucralfate; poor clinical evolution characterized by: dysphagia, oral intolerance and recurrence of upper digestive bleeding, endoscopic gastrostomy placement was performed. Clinical case 2: esophagus with mucosa with fibrin and patches of extensive necrosis, compensation of both the pulmonary infectious focus and hydration and nutrition is performed, in complementary studies a colonic mass is observed, with a confirmatory histopathological study of colon adenocarcinoma in an advanced state. DISCUSSION. Acute necrotizing esophagitis is an unusual entity, with low prevalence and incidence, associated with states of systemic hypoperfusion and multiple comorbidities that favor an ischemic substrate. When reviewing the case reports in the medical literature, the cases we report correlate with the clinical, epidemiological, endoscopic characteristics and causal risk factors of the disease. The most common clinical presentation is upper gastrointestinal bleeding, which must be correlated with the classic endoscopic finding. Our first reported case ends with the placement of a gastrostomy to be able to feed. CONCLUSION. The prognosis of acute esophageal necrosis is poor and a high index of clinical suspicion and knowledge of this rare pathology is required for early diagnosis and timely management. Evaluation by upper gastrointestinal endoscopy is required. It is a cause of gastrointestinal bleeding that carries high mortality rates, mainly in frail older adults. Early recognition and aggressive resuscitation are the fundamental principles for a better outcome of the disease.

Reemplazo esofágico mínimamente invasivo con tubo de Akiyama en un paciente pediátrico con quemadura esofágica / Minimally invasive esophageal replacement with Akiyama tube in a pediatric patient with esophageal burn

Introducción. La ingesta de cáusticos continúa siendo un problema de salud pública en los países en vía de desarrollo, por lo que a veces es necesario realizar un reemplazo esofágico en estos pacientes. Aún no existe una técnica estandarizada para este procedimiento. Caso clínico. Masculino de 10 años con estenosis esofágica por ingesta de cáusticos, quien no mejoró con las dilataciones endoscópicas. Se realizó un ascenso gástrico transhiatal por vía ortotópica mediante cirugía mínimamente invasiva como manejo quirúrgico definitivo .Discusión. Actualmente existen varios tipos de injertos usados en el reemplazo esofágico. La interposición colónica y gástrica son las que cuentan con mayores estudios, mostrando resultados similares. Conclusiones. La elección del tipo y posición del injerto debe ser individualizada, tomando en cuenta las características de las lesiones y la anatomía de cada paciente para aumentar la tasa de éxito.

Introduction. The ingestion of caustics continues to be a public health problem in developing countries, which is why sometimes is necessary to perform an esophageal replacement in these patients. There is still no standardized technique for this procedure. Clinical case. A 10-year-old male with esophageal stricture due to caustic ingestion, who did not improve with endoscopic dilations. A laparoscopic transhiatal gastric lift was performed orthotopically as definitive surgical management using minimally invasive surgery. Discussion. Currently there are several types of grafts used in esophageal replacement. Colonic and gastric interposition are the ones that have the most studies, showing similar results. Conclusions. Choice of type and position of the graft must be individualized, taking into account the characteristics of the lesions and anatomy of each patient, in order to increase the success rate.

Management of symptoms recurrence after myotomy for achalasia. a practical approach / Manejo da recidiva de sintomas após miotomia para acalasia. uma abordagem prática

ABSTRACT BACKGROUND: Achalasia is an esophageal motility disorder, and myotomy is one of the most used treatment techniques. However, symptom persistence or recurrence occurs in 9 to 20% of cases. AIMS: This study aims to provide a practical approach for managing the recurrence or persistence of achalasia symptoms after myotomy. METHODS: A critical review was performed to gather evidence for a rational approach for managing the recurrence or persistence of achalasia symptoms after myotomy. RESULTS: To properly manage an achalasia patient with significant symptoms after myotomy, such as dysphagia, regurgitation, thoracic pain, and weight loss, it is necessary to classify symptoms, stratify severity, perform appropriate tests, and define a treatment strategy. A systematic differential diagnosis workup is essential to cover the main etiologies of symptoms recurrence or persistence after myotomy. Upper digestive endoscopy and dynamic digital radiography are the main tests that can be applied for investigation. The treatment options include endoscopic dilation, peroral endoscopic myotomy, redo surgery, and esophagectomy, and the decision should be based on the patient's individual characteristics. CONCLUSIONS: A good clinical evaluation and the use of proper tests jointly with a rational assessment, are essential for the management of symptoms recurrence or persistence after achalasia myotomy.

RESUMO RACIONAL: A acalasia é um distúrbio da motilidade esofágica e a miotomia é uma das técnicas de tratamento mais utilizadas. No entanto, a persistência ou recorrência dos sintomas ocorre em 9 a 20%. OBJETIVOS: Este estudo visa fornecer uma abordagem prática para o manejo da recorrência ou persistência dos sintomas de acalasia após miotomia. MÉTODOS: Foi realizada uma revisão crítica para reunir evidências para uma abordagem racional no manejo da recorrência ou persistência dos sintomas de acalasia após miotomia. RESULTADOS: Para o manejo adequado de um paciente com acalásia com sintomas significativos após miotomia, como disfagia, regurgitação, dor torácica e perda de peso, é necessário classificar os sintomas, estratificar a gravidade, realizar exames adequados e definir uma estratégia de tratamento. Uma investigação diagnóstica diferencial sistemática é essencial para cobrir as principais etiologias de recorrência ou persistência dos sintomas após a miotomia. A endoscopia digestiva alta e a radiografia digital dinâmica são os principais exames que podem ser aplicados para investigação. As opções de tratamento incluem dilatação endoscópica, POEM (miotomia endoscópica oral), remiotomia e esofagectomia, e a decisão deve ser baseada nas características individuais do paciente. CONCLUSÕES: Uma boa avaliação clínica e a utilização de exames adequados, juntamente com uma avaliação racional, são essenciais para o manejo da recorrência ou persistência dos sintomas após miotomia por acalasia.

Trauma esofágico como complicación del uso de prótesis dentales en un adulto mayor / Esophageal trauma as a complication of the use of dental prostheses in an elderly adult

Objetivo: Dar a conocer los riesgos que conlleva el uso de prótesis dentales deterioradas en adultos mayores, ante la amenaza de ser deglutidas y los daños esofágicos asociados. Método: Reporte de caso. Discusión: En la investigación realizada se determinó que la perforación esofágica es una complicación compleja, donde se debe establecer un diagnóstico precoz y tratamiento oportuno como lo señalan las investigaciones citadas por los autores. Conclusiones: El diagnóstico precoz y la aplicación de protocolos de atención médica, es necesario para reducir las complicaciones que derivan de las perforaciones esofágicas y disminuir la morbimortalidad.

Objective: To make known the risks involved in the use of deteriorated dental prostheses in older adults, in view of the threat of swallowing and the associated esophageal damage. Method: Case report. Discussion: In the research conducted, it was determined that esophageal perforation is a complex complication, where early diagnosis and timely treatment should be established as indicated by the research cited by the authors. Conclusions: Early diagnosis and the application of medical care protocols is necessary to reduce the complications derived from esophageal perforations and decrease morbimortality.

Digestive tract toxicity associated with exposure to 2,4-dichlorophenoxyacetic acid in rats

2,4-Dichlorophenoxyacetic acid (2,4-D) is a herbicide of the chlorophenoxy class and the second most widely used herbicide applied to several different crops worldwide. Environmental factors, especially those related to diet, strongly affect the risk of developing cancer of the gastrointestinal tract. There is currently no evidence to determine whether there is an association between 2,4-D exposure and gastrointestinal disorders. We evaluated the histological effect of chronic oral and inhalation exposure to 2,4-D on the digestive tract of rats. Eighty male adult albino Wistar rats were divided into 8 groups (n=10): two control groups, one for inhalation and one for oral exposure, and 6 groups exposed orally or by inhalation at three different concentrations of 2,4-D [3.71×10-3 grams of active ingredient per hectare (gai/ha), 6.19×10-3 gai/ha, and 9.28×10-3 gai/ha]. The animals were exposed for 6 months. The esophagus, stomach, and intestine were collected for histopathological analysis. Animals exposed to 2,4-D had hyperkeratosis of the esophagus, regardless of the exposure route. All animals exposed to a higher concentration of 2,4-D orally presented mild dysplasia of the large intestine. In the small intestine, most animals exposed to moderate and high concentrations of 2,4-D had mild dysplasia. No gastric changes were observed in any of the groups studied. Chronic exposure to 2,4-D, especially at moderate and high concentrations, regardless of the exposure route, caused reactive damage to the esophagus (hyperkeratosis) and dysplastic changes to the intestine.

Brazilian manuscripts published in the Dysphagia journal / Trabalhos brasileiros publicados na revista Dysphagia

ABSTRACT Objective: to survey the Brazilian participation in original and review articles published in the Dysphagia journal. Methods: original and review articles in volumes 1 to 35, quantifying all those developed in Brazil, the diseases researched, the places where the investigations were conducted, and the number of citations they received, were analyzed. The categorical variables are presented in relative and absolute frequencies. Literature Review: a total of 35 Brazilian manuscripts were published. The most researched disease was Parkinson's, followed by Chagas disease, stroke, and the physiology of swallowing. The highest number of publications was carried out at the Universidade de São Paulo, campus at Ribeirão Preto, SP, and the Universidade Federal de São Paulo, capital city. Between 2001 and 2010, 14 manuscripts were published (3.7% of the journal), and between 2011 and 2020, 20 were published (2.9% of the journal). By 2019, the manuscripts had received 481 citations - 17 citations per article between 1998 and 2009, and 14, between 2010 and 2019. Conclusion: Brazilian manuscripts are regularly published in the Dysphagia journal and have a scientific impact. However, there has not been a progressive increase in the number of published articles.

RESUMO Objetivo: avaliar a participação brasileira em publicações de artigos originais e de revisão na revista Dysphagia. Métodos: foram analisados artigos originais e de revisão do volume 1 ao 35, com quantificação do total de artigos provenientes do Brasil, as doenças pesquisadas, o local onde a pesquisa foi realizada e o número de citações. As variáveis categóricas foram descritas como frequências relativas ou absolutas. Revisão da Literatura: foram publicados 35 trabalhos provenientes do Brasil. Doença de Parkinson foi a doença mais pesquisada, seguida da doença de Chagas, acidente vascular cerebral e fisiologia da deglutição. Universidade de São Paulo, campus de Ribeirão Preto (SP) e a Universidade Federal de São Paulo (SP) foram os locais com maior número de publicações. Entre 2001 e 2010, foram publicados 14 trabalhos (3,7% dos publicados na revista), e de 2011 a 2020 foram 20 (2,9% dos publicados na revista). Até 2019 os trabalhos tiveram 481 citações, sendo 17 citações por artigo entre 1998 e 2009, e 14 citações por artigo entre 2010 e 2019. Conclusão: as publicações de trabalhos brasileiros na revista Dysphagia têm regularidade e impacto, entretanto não houve aumento progressivo no número de artigos publicados.

Research progress on long-term outcomes of endoscopic surgery for esophageal diseases / 中国胸心血管外科临床杂志

@#Esophageal diseases include esophageal malignant diseases and benign diseases, with a high incidence in our country. Along with the development of the endoscopic technique, many of them which required medical treatment or surgery in the past can now be cured by endoscopic surgery. This article is an overview of long-term follow-up of endoscopic surgery for the common esophageal disease, such as early squamous cell carcinoma, esophageal stricture, achalasia and submucosal tumor of the esophagus.

Research Progress in Application of Artificial Intelligence in Diagnosis of Upper Digestive Tract Diseases / 胃肠病学

The combination of artificial intelligence (AI) technology supported by big data and cloud computing with medical field shows a broad application prospect. The excellent imaging recognition ability of AI is very suitable for the diagnosis and recognition of upper digestive tract diseases, thereby reducing the missed diagnosis and helping physicians to perform endoscopy better. This article reviewed the application of AI in diagnosis of upper digestive tract diseases, especially for the early recognition of cancer.

Esophageal intramural pseudodiverticulosis in a patient with food bolus impaction / Pseudodiverticulosis intramural esofágica en un paciente con impactación de bolo alimentario

Esophageal intramural pseudodiverticulosis is an uncommon esophageal benign disease. The typical finding during endoscopy is the presence of numerous pinhead-sized outpouchings along the esophageal wall. We reported a case of food bolus impaction secondary to esophageal intramural pseudodiverticulosis. A 67-year-old man presented with sudden-onset dysphagia. Multiple tiny orifices were revealed during upper endoscopy. In addition, there were an impacted food bolus and an esophageal web. The patient was treated with balloon dilatation and proton pump inhibitors. As a result the symptoms disappeared completely. Esophageal intramural pseudodiverticulosis is a rare cause of food bolus impaction and its treatment is directed towards the underlying associated conditions as well as the resolution of complications.

La pseudodiverticulosis intramural esofágica es una enfermedad benigna del esófago poco común. El hallazgo típico durante la endoscopia es la presencia de numerosos sáculos del tamaño de una cabeza de alfiler a lo largo de la pared esofágica. Reportamos un caso de impactación de bolo alimentario secundario a pseudodiverticulosis esofágica intramural. Un hombre de 67 años presentó disfagia de aparición repentina. Se encontraron múltiples orificios pequeños en la endoscopia superior. Además, hubo un bolo alimentario impactado y una red esofágica. El paciente fue tratado con dilatación con balón e inhibidores de la bomba de protones. Como resultado, los síntomas desaparecieron por completo. La pseudodiverticulosis intramural esofágica es una causa rara de impactación del bolo alimentario y su tratamiento se dirige a las condiciones asociadas subyacentes, así como a la resolución de complicaciones.

Association between endoscopic findings and histopathological confirmation in patients with suspicion of eosinophilic esophagitis / Associação entre achados endoscópicos e confirmação histopatológica em pacientes com suspeita de esofagite eosinofílica

ABSTRACT BACKGROUND: The diagnosis of eosinophilic esophagitis (EoE) is performed by the detection of 15 or more eosinophils per field in an esophageal biopsy sample, but the endoscopic findings alone are not validated for a diagnosis of the disease. OBJECTIVE: To evaluate the association between the endoscopic findings and histopathological diagnosis in patients with suspected EoE in endoscopy. METHODS: A retrospective study of 24 patients with suspicion of EoE during endoscopy was held. The information was collected from databases of Endoscopy and Pathology services of the Hospital Universitário Walter Cantídio, Universidade Federal do Ceará, from March 2012 to April 2018. The patients were divided into a group with positive biopsy (>15 Eosinophils/field, N=8) and a group with negative biopsy (<15 Eosinophils/field, N=16), and the endoscopic findings were compared between the two groups. RESULTS: From a total of 24 patients, 79.1% had longitudinal grooves, 20.8% white exudates, 33.3% mucosal pallor or loss of vascularity and 45.8% had more than one endoscopic finding. There was a significant difference (P<0.05) in the evaluation of the finding of mucosal pallor or decreased vasculature alone among the groups. The positive predictive value and negative predictive value of the presence of more than one endoscopic findings for the diagnosis of EoE was 54% and 84%, respectively. CONCLUSION: There was a low association between the presence of endoscopic findings and histopathological confirmation of the disease, which indicates that endoscopic findings alone are not reliable for the diagnosis of EoE.

RESUMO CONTEXTO: O diagnóstico da esofagite eosinofílica é realizado através da detecção, em amostra de biópsia esofágica, de 15 ou mais eosinófilos por campo, sendo que os achados endoscópicos isolados não são validados para o diagnóstico da doença. OBJETIVO: Avaliar a associação entre os achados endoscópicos com o diagnóstico histopatológico em pacientes com suspeita de esofagite eosinofílica na endoscopia. MÉTODOS: Estudo retrospectivo de 24 pacientes com suspeita de esofagite eosinofílica durante endoscopia digestiva alta. As informações foram colhidas de bancos de dados dos serviços de Endoscopia e Patologia do Hospital Universitário Walter Cantídio da Universidade Federal do Ceará, no período de março de 2012 a abril de 2018. Os pacientes foram divididos em grupo com biópsia positiva (>15 eosinófilos/campo, N=8) e grupo com biópsia negativa (<15 eosinófilos/campo, N=16), sendo comparados os achados endoscópicos entre os dois grupos. RESULTADOS: Do total de 24 pacientes, 79,1% tinham a presença de sulcos longitudinais, 20,8% exsudatos brancos, 33,3% palidez de mucosa ou perda da vascularização e 45,8% apresentaram mais de um achado endoscópico. Houve diferença significativa (P<0,05) na avaliação do achado de palidez ou perda da vascularização, isoladamente, entre os grupos. O valor preditivo positivo e valor preditivo negativo da presença de mais de um achado endoscópico para o diagnóstico de esofagite eosinofílica foi de 54% e 84%, respectivamente. CONCLUSÃO: Houve uma baixa associação entre a presença de achados endoscópicos e a confirmação histopatológica da doença, o que faz com que os achados endoscópicos isolados não sejam confiáveis para o diagnóstico de esofagite eosinofílica.

The esophageal expression of fibrotic cytokines and NADPH oxidase in stress induced esophageal fibrosis and its significance / 中国医师杂志

Objective To detect the expression levels of collagen1 (colla-1),transforming growth factor-β1 (TGF-β1),a-smooth muscle actin (α-SMA) and nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX-4) in mouse esophagus submitted to chronic restraint stress (CRS),in order to discuss stress-induced esophageal fibrosis and the role of oxidative stress.Methods 20 male Kunming mice were randomly divided into two groups,CRS and normal control (NC).The mice in CRS group were submitted to 2 h per day of restraint stress using home-made device for a period of 14 days,and the mice in both group were treated the same at rest of the time.Fibrotic changes of esophageal tissue were observed using Masson staining.The expression levels of NOX-4 and related fibrotic cytokines in esophageal tissues were detected by several methods such as immunohistochemistry,enzyme-linked immunosorbent assay (ELISA) and realtime polymerase chain reaction (qRT-PCR).Results Body weight in CRS group was significantly lower than NC group (8.75 ± 1.69 vs 12.69 ± 3.16),with statistically significant difference (t =3.11,P ＜ 0.05).Masson staining revealed that CRS mice showed distinct fibrosis of epithelial interstitium,while there was no distinct changes observed in NC mice.Immunohistochemical staining revealed intense staining for NOX-4 in epithelial,mucosal and submucosal layers of esophagi in CRS mice.ELISA showed that the serum level of NOX-4 in CRS mice was higher than NC mice (1.442 ± 0.05 vs 0.449 ± 0.08),with statistically significant difference (t =-27.32,P ＜ 0.01).Real-time PCR results showed that the expression of colla-1,TGF-β1,α-SMA and NOX-4 in CRS mice were as (2.443 ±0.36,2.78 ±0.13,2.244 ±0.18,2.448 ±0.440) times higher than NC mice,with statistically significant difference (t =-11.19,-38.86,-19.90,-10.37,P ＜ 0.01).Conclusions Fibrotic cytokines such as colla-1,TGF-β1 and α-SMA may participate in formation of stress induced esophageal fibrosis,and oxidative stress may play crucial role in the process of esophageal fibrosis.

Dinâmica da ingestão de água em pacientes com acalasia: influência de sexo e idade / Water ingestion dynamics in patients with achalasia: influence of sex and age

ABSTRACT BACKGROUND: Achalasia is a disease that affects esophageal bolus transit due to the absence of esophageal peristaltic contractions and impaired or absent relaxation of the lower esophageal sphincter. OBJECTIVE: The objective of this investigation was: a) to evaluate the dynamics of water ingestion in patients with achalasia, idiopathic or caused by Chagas' disease; b) to evaluate the influence of sex and age on water ingestion dynamics. METHODS: The investigation was conducted with 79 patients with achalasia (27 idiopathic and 52 Chagas' disease) and 91 healthy volunteers, all evaluated by the water-drinking test. The individuals drank, in triplicate, 50 mL of water without interruption. The time and the number of swallows for this task were counted. We also measured: (a) inter-swallow interval - the time to complete the task, divided by the number of swallows during the task; (b) swallowing rate - volume drunk divided by the time; (c) volume per swallow - volume drunk divided by the number of swallows. RESULTS: Patients with achalasia took longer to ingest all the volume (mean 12.2 seconds) than healthy controls (mean 5.4 seconds), had greater number of swallows, longer interval between swallows, lower swallowing rate (5.2 mL/s vs 10.9 mL/s in controls) and lower volume per swallow (9.1 mL vs 14.4 mL in controls, P<0.01). Among healthy volunteers, women had a shorter interval between swallows and lower volume per swallow compared with men, and in the achalasia group, women had a longer interval between swallows and lower ingestion rate. No difference in the drinking test results was found between younger and older subjects in achalasia or control group. Also, no differences were observed between patients with Chagas' disease and those with idiopathic achalasia, or between patients with increased and normal esophageal diameter. CONCLUSION: Patients with achalasia have difficulty in ingesting water, taking a longer time to complete the task, which is influenced by sex but not by age or severity of the disease.

RESUMO CONTEXTO: Acalásia é uma doença que causa dificuldade no transporte do bolo deglutido da boca ao estômago, consequente à ausência das contrações peristálticas no esôfago e relaxamento parcial ou ausente do esfíncter inferior do esôfago. OBJETIVO: O objetivo desta investigação foi: a) avaliar a dinâmica da ingestão de água em pacientes com acalásia, idiopática ou causada pela doença de Chagas; b) avaliar a influência do sexo e da idade na dinâmica da ingestão de água. MÉTODOS: A investigação foi realizada em 79 pacientes com acalásia (27 idiopática e 52 Chagas) e 91 voluntários saudáveis, todos avaliados pelo teste de ingestão de água. Os indivíduos ingeriam, em triplicata e sem pausas, 50 mL de água, a ingestão era cronometrada e o número de deglutições contadas. Também foram medidos: (a) intervalo entre deglutições - tempo para completar a tarefa, dividido pelo número de deglutições durante a tarefa; (b) fluxo de deglutição - volume ingerido dividido pelo tempo de ingestão; (c) volume de cada deglutição - volume ingerido dividido pelo número de deglutições. RESULTADOS: Os pacientes com acalásia levaram mais tempo (média 12,2 segundos) para ingerir todo o volume que voluntários sadios (5,4 segundos), e apresentaram maior número de deglutições, intervalo mais longo entre as deglutições, menor fluxo de deglutição (5,2 mL/s vs 10,9 mL/s, nos controles) e menor volume em cada deglutição (9,1 mL vs 14,4 mL nos controles). Entre os voluntários saudáveis, as mulheres tiveram um intervalo entre deglutições mais curto e menor volume em cada deglutição em comparação aos homens e, na acalásia, as mulheres tiveram um intervalo mais longo entre as deglutições e menor fluxo de ingestão. Não houve diferenças significativas entre indivíduos mais jovens e mais velhos, entre os voluntários saudáveis e entre os indivíduos com acalásia. Não houve diferenças entre pacientes com doença de Chagas e pacientes com acalasia idiopática, ou entre pacientes com aumento ou não no diâmetro esofágico. CONCLUSÃO: Pacientes com acalásia têm dificuldade em ingerir água, levando mais tempo para completar a tarefa, que é influenciada pelo sexo dos indivíduos, mas não pela idade ou dilatação do esôfago.

Overlapping of functional esophageal disorders and irritable bowel syndrome, in musicians and athletes / Sobreposição de distúrbios esofágicos funcionais e síndrome do intestino irritável em músicos e esportistas / Sobreposición de trastornos esofágicos funcionales y síndrome del intestino irritable en músicos y deportistas

ABSTRACT Introduction: Functional gastrointestinal disorders (FGIDs) are the most common disorders in the general population. These disorders can overlap, decreasing the quality of life. Objective: We analyzed the prevalence of functional esophageal disorders (FED) and irritable bowel disease (IBS), and their overlapping and associated factors in musicians and athletes. Methods: A cross-sectional study was conducted using FGID and associated factors questionnaires administered to four groups: instrumentalists, singers, athletes, and a control group of healthy volunteers. Results: Of the 161 subjects, 62 (38.51%) had only FED, 76 (47.2%) had only IBS, and 23 (14.29%) had FED-IBS overlap. Subjects with FED-IBS overlap had more severe symptoms of IBS, especially hard and lumpy stools and constipation, compared to those with IBS alone. IBS subtype was more frequent in the overlap group, while not specified IBS type was less frequent. Regarding FED, we found that subjects with FED-IBS overlap had more functional heartburn and less functional dysphagia symptoms. There was a higher risk of overlap in instrumentalists and smokers. Conclusions: FED and IBS are frequently encountered in musicians and athletes. Subjects with FED-IBS overlap presented more frequent and severe symptoms. Instrumentalists and smokers are at higher risk of overlap. Level of Evidence IV; Case series.

RESUMO Introdução: Os distúrbios gastrintestinais funcionais (DGIF) são os mais comuns na população em geral. Esses distúrbios podem se sobrepor, diminuindo a qualidade de vida. Objetivo: Analisamos a prevalência dos distúrbios funcionais esofágicos (DFE) e da síndrome do intestino irritável (SII), sua sobreposição e os fatores associados em músicos e esportistas. Métodos: Realizou-se um estudo transversal por meio de questionários sobre DGIF e fatores associados, administrados a quatro grupos: instrumentistas, cantores, esportistas e um grupo controle de voluntários saudáveis. Resultados: Dos 161 indivíduos, 62 (38,51%) tinham só DFE, 76 (47,2%) tinham só SII e 23 (14,29%) tinham sobreposição de DFE e SII. Os indivíduos com sobreposição de DFE e SII tinham sintomas mais intensos de SII, especialmente fezes duras e encaroçadas e constipação em comparação com os que tinham só SII. O subtipo SII foi mais frequente no grupo de sobreposição, enquanto o tipo SII indefinido foi menos frequente. Quanto ao DFE, verificamos que os indivíduos com sobreposição DFE-SII tinham mais sintomas de azia funcional e menos de disfagia funcional. Houve maior risco de sobreposição em instrumentistas e fumantes. Conclusões: DFE e SII são frequentes em músicos e esportistas. Os indivíduos com sobreposição de DFE e SII apresentaram sintomas mais frequentes e mais severos. Os instrumentistas e os fumantes têm maior risco de sobreposição. Nível de Evidência IV; Série de casos.

RESUMEN Introducción: Los trastornos gastrointestinales funcionales (TGIF) son los más comunes en la población en general. Estos trastornos pueden sobreponerse, disminuyendo la calidad de vida. Objetivo: Analizamos la prevalencia de los trastornos funcionales esofágicos (TFE) y del síndrome del colon irritable (SCI), su superposición y los factores asociados en músicos y deportistas. Métodos: Se realizó un estudio transversal por medio de cuestionarios sobre TGIF y factores asociados, administrados a cuatro grupos: instrumentistas, cantantes, deportistas y un grupo control de voluntarios sanos. Resultados: De los 161 sujetos, 62 (38,51%) tenían sólo TFE, 76 (47,2%) tenían sólo SCI y 23 (14,29%) tenían superposición de TFE e SCI. Los individuos con superposición de TFE y SCI tenían síntomas más intensos de SCI, especialmente heces duras y grumosas y estreñimiento en comparación con los que tenían sólo SCI.. El subtipo SCI fue más frecuente en el grupo de superposición, mientras que el tipo de SCI no especificado resultó menos frecuente. En cuanto al TFE, verificamos que los sujetos con superposición TFE-SCI tenían más síntomas de pirosis funcional y menos de disfagia funcional. Hubo mayor riesgo de superposición en instrumentistas y fumadores. Conclusiones: TFE y SCI son frecuentes en músicos y deportistas. Los sujetos con superposición de TFE y SCI presentaron síntomas más frecuentes y más severos. Los instrumentistas y los fumadores tienen mayor riesgo de superposición. Nivel de Evidencia IV; Serie de casos.

Esophageal stricture assessment by esophagogram: a pictorial review of differential diagnosis

The purpose of this article is to review the most frequent conditions associated with esophageal strictures on esophagogram. The most common causes include caustic ingestion, radiation therapy, malignancy, extrinsic compression, gastroesophageal reflux disease, infectious esophagitis, systemic diseases and membranes and rings. Adequate characterization of the stricture is necessary for formulation of the best diagnostic hypothesis and can be used to distinguish between malignant and non-malignant conditions. (AU)

Diagnostic value of Fuji intelligent color enhancement on vocal leukoplakia and esophageal diseases / 中华消化内镜杂志

Objective To study the clinical application of Fuji intelligent color enhancement ( FICE) on the diagnosis of vocal leukoplakia and esophageal diseases. Methods A total of 50 patients suspected with vocal leukoplakia by electronic laryngoscopy were enrolled for undergoing meticulous examination of vocal cords and esophagus using FICE from January 2014 to January 2016. The diagnostic value of FICE for vocal leukoplakia were analyzed. Results Among the 50 patients, 50 lesions were found using laryngoscopy and 52 lesions were found using FICE. There were significant differences between FICE mode and white light mode on the capillary pattern score and lesion boundary resolution score ( all P<0. 05) . The diagnostic coincidence rate of FICE mode with pathology was higher than that of white light mode [ 89. 4％ ( 42/47 ) VS 68. 1％ ( 32/47 ) , P = 0. 01 ] . Among the 50 patients suspected with vocal leukoplakia, 31 combined with gastroesophageal reflux disease, and were given proton-pump inhibitor treatment. In the follow-up after three months, lesions of 16 cases alleviated, 13 cases disappeared, and 2 cases had no significant changes. Conclusion FICE has a higher clinical value than conventional laryngoscopy and white light endoscopy on the diagnosis of vocal leukoplakia.

Diverticulo de esofago médio: relato de caso / Middle esophageal diverticulum: a case report

Introdução:Divertículos esofagianos são alterações esofá-gicas raras e podem ser classificados em proximais, médios ou distais, de acordo com a localização. Podem ser de pulsão ou tração e verdadeiro ou falso. Na dependência do tamanho do divertículo e da concomitância de doença associada, po-dem causar disfagia, regurgitação, mau hálito, rouquidão ou pneumopatias, podendo ter indicação de ressecção cirúrgica. O diagnóstico é suspeitado pela história clínica e confirmado pelo exame radiológico contrastado e pela endoscopia diges-tiva alta. Objetivo: Relatar o caso raro de uma paciente com divertículo de esôfago médio. Materiais e Métodos: Revisão do prontuário, registro fotográfico dos métodos diagnósticos e revisão da literatura. Resultados: Paciente feminina, 61 anos, encaminhada ao ambulatório do hospital de base de São José do Rio Preto, com queixa de disfagia progressiva para alimentos sólidos aproximadamente há cinco anos, associado à odinofagia, eructação intensa e perda ponderal nesse período de 10 quilos. A endoscopia digestiva alta, mostrou divertículo no terço médio do esôfago, 25 cm da arcada dentária supe-rior, com óstio de 3-4 cm de diâmetro e 3 cm de profundidade. A tomografia computadorizada de tórax confirmou a presen-ça do divertículo de esôfago em terço médio do esôfago, sem outros achados que justificassem sua presença. A paciente foi submetida à videotoracoscopia com ressecção do divertículo sem intercorrências. Atualmente, a paciente apresenta-se as-sintomática no acompanhamento clínico. Conclusão: Embora seja considerada uma alteração esofágica rara, os divertículos esofagianos, devem sempre ser considerados como diagnósti-co diferencial. Especialmente em casos de disfagia, halitose e enfermidades respiratórias por broncoaspiração. Em casos de pacientes sintomáticos e com dificuldade no tratamento clinico, a melhor opção terapêutica é a cirurgia com a excisão local do divertículo via toracotomia ou toracoscopia.

Introduction:Esophageal diverticula are rare conditions of the esophagus and can be classified according to their location in proximal, middle, or distal. Further categorization relates to presumed etiology, namely traction vs pulsion, true or false. Depending on the size of the diverticulum and the concomitance of associated disease, it can cause dysphagia, regurgitation, bad breath, hoarseness or pneumopathies. Thus, symptomatic patients are eligible surgical resection. The diagnosis is suspected by clinical history and confirmed by contrast radiological examination and upper digestive endoscopy. Objective: Present the case of a patient with middle esophageal diverticulum. Materials and Methods: We carried out a review of medical records, photographic record of diagnostic methods, and review from the literature. Results: A 61-year-old female patient was referred to the outpatient clinic at a teaching hospital (Hospital de Base), located in the city the São José do Rio Preto, inland of São Paulo State due to progressive complaints of dysphagia for solid foods for about 5 years, associated with odynophagia and severe eructation. She had a 10 kg weight loss in this period. Upper digestive endoscopy showed a diverticulum in the middle third of the esophagus, 25 cm from the dental arcade, with an ostium diameter of 3-4 cm and depth of 3 cm. A chest computed tomography confirmed the presence of an esophageal diverticulum in the middle third of the esophagus, in addition to other findings that justify its presence. She underwent video-assisted thoracoscopy with diverticulum resection without further complications. Currently, she is asymptomatic in clinical follow-up. Conclusion: Although it is considered a rare outgrowth, esophageal diverticula should always be considered as a differential diagnosis, especially in cases of dysphagia, halitosis, and respiratory diseases due to bronchoaspiration. In cases of symptomatic patients with difficulty to undergo clinical treatment, the best therapeutic option is a surgery with local excision of the diverticulum via thoracotomy or thoracoscopy.

Giant esophageal epiphrenic diverticulum: presentation and treatment / Divertículo epifrênico gigante de esôfago: apresentação e tratamento

ABSTRACT Epiphrenic diverticulum is a rare disease associated with esophageal motor disorders that is usually asymptomatic and has a well-established surgical indication. We report a case of giant epiphrenic diverticulum in a 59-year-old symptomatic woman who was diagnosed after underwent complementary exams. Because of her symptoms, the surgical treatment was chosen, and esophageal diverticulectomy was performed along with laparoscopic cardiomyotomy and anterior partial fundoplication.

RESUMO O divertículo epifrênico é uma patologia rara associada a distúrbios motores esofágicos e, frequentemente, assintomática, tendo indicações cirúrgicas bem estabelecidas. Relatamos um caso de divertículo epifrênico gigante em paciente de 59 anos, sexo feminino, sintomática, diagnosticada por exames complementares. Devido à sintomatologia, optou-se por tratamento cirúrgico, sendo realizada a diverticulectomia esofágica com cardiomiotomia e fundoplicatura parcial anterior laparoscópica.

Caracterização histopatológica da esofagite eosinofílica em crianças e adolescentes / Histological features of eosinophilic esophagitis in children and adolescents

ABSTRACT BACKGROUND: Eosinophilic esophagitis is an emerging disease featured by eosinophilic esophageal infiltrate not responsive to proton pump inhibitors. OBJECTIVE: To characterize histological features of children and adolescents with eosinophilic esophagitis. METHODS: Cross-sectional study in a tertiary hospital. Biopsies from each esophageal third from 14 patients (median age 7 years) with eosinophilic esophagitis were evaluated. Histological features evaluated included morphometry of esophageal epithelium, esophageal density (per high power field), extracellular eosinophilic granules, eosinophilic microabscesses, surface disposition of eosinophils, epithelial desquamation, peripapillary eosinophilia, basal layer hyperplasia and papillary elongation. RESULTS: Several patients presented a normal esophageal macroscopy in the upper digestive endoscopy (6, 42.8%), and the most common abnormality were vertical lines (7, 50%) and whitish spots over esophageal mucosa (7, 50%). Basal layer hyperplasia was observed in 88.8%, 100% e 80% of biopsies from proximal, middle and lower esophagus, respectively (P=0.22). Esophageal density ranges from 0 to more than 50 per hpf. Extracellular eosinophilic granules (70%-100%), surface disposition of eosinophils (60%-93%), epithelial desquamation (60%-100%), peripapillary eosinophilia (70%-80%) were common, but evenly distributed among each esophageal third. Just one patient did not present eosinophils in the lower third, four in the middle third and four in the upper esophageal third. CONCLUSION: In the absence of hypereosinophilia, other histological features are present in eosinophilic esophagitis and may contribute to diagnosis. Eosinophilic infiltrate is focal, therefore multiple biopsies are needed for diagnosis.

RESUMO CONTEXTO: Esofagite eosinofílica é uma doença emergente caracterizada por infiltrado eosinofílico esofágico não responsivo a inibidores de bomba de prótons. OBJETIVO: Caracterizar os achados histopatológicos de uma coorte de crianças e adolescentes com diagnóstico de esofagite eosinofílica. MÉTODOS: Estudo transversal conduzido em hospital terciário. Biópsias de terços proximal, médio e distal de 14 pacientes (idade mediana 7 anos) com diagnóstico de esofagite eosinofílica. Estudo morfométrico e variáveis histológicas analisadas em fragmentos de biópsias nos terços esofágicos: contagem de eosinófilos/CGA, grânulos eosinofílicos extracelulares, microabscessos eosinofílicos, disposição superficial de eosinófilos, descamação epitelial, eosinofilia peripapilar, hiperplasia da camada basal e alongamento de papilas. RESULTADOS: Vários pacientes apresentaram aspecto macroscópico normal da mucosa esofágica à endoscopia (6, 42.8%), e a anormalidade mais comumente observada foi linhas verticais (7, 50%) e exsudato branco (7, 50%). Hiperplasia da camada basal foi observada em 88,8%, 100% e 80% das biópsias do terço proximal, médio e distal respectivamente (P=0,22); contagem de eosinófilos nos terços variou de 0 a ≥50/CGA, grânulos eosinofílicos extracelulares (70%-100%), disposição superficial de eosinófilos (60%-93%), descamação epitelial (60%-100%), eosinofilia peripapilar (70%-80%), sem diferença estatística entre os terços esofágicos. Ausência de eosinofilia ocorreu raramente em terço distal (uma do distal, quatro do proximal, quatro do médio). CONCLUSÃO: Na ausência de hipereosinofilia, outros achados histopatológicos de inflamação eosinofílica estão presentes. A infiltração eosinofílica apresentou caráter focal, sugerindo-se a realização de múltiplas biópsias de diversos segmentos.

Mastócitos discriminam esofagite eosinofílica em pacientes pediátricos / Mast cells distinguish eosinophilic esophagitis in pediatric patients

ABSTRACT BACKGROUND: Mast cells exert a substantial role in gastrointestinal allergic diseases. Therefore, it is reasonable to presume that mast cell may aid diagnosis in eosinophilic gastroenteropathy. OBJECTIVE: To evaluate whether mast cell count in the esophageal epithelium can discriminate eosinophilic esophagitis, proton-pump inhibitor (PPI)-responsive eosinophilic esophagitis and gastroesophageal reflux esophagitis. METHODS: Retrospectively we reviewed the files of 53 consecutive patients (age: 7.8 years; range: 8-14 years) with definitive diagnose established during clinical follow up in a universitary outpatient clinic as follow: eosinophilic esophagitis (N=23), PPI-responsive eosinophilic esophagitis (N=15) and gastroesophageal reflux esophagitis (N=15). Eosinophil count in the esophageal epithelium in slides stained with H-E was reviewed and immunohistochemistry for mast cell tryptase was performed. RESULTS: Count of eosinophils/high-power field (HPF) higher than 15 were found in 14 out of 15 reflux esophagitis patients. The mean count of eosinophils/HPF was similar in eosinophilic esophagitis patients and in those with PPI-responsive eosinophilic esophagitis (42 and 39 eosinophils/HPF, respectively, P=0.47). Values of mast cell tryptase (+) were higher in eosinophilic esophagitis [median: 25 mast cells/HPF; range (17-43) ] and in PPI-responsive eosinophilic esophagitis patients [25 (16-32) ], compared to reflux esophagitis [4 (2-14) ], P<0.001. There was no difference between the mean count of mast cells/HPF in the esophageal epithelium of eosinophilic esophagitis patients and PPI-responsive eosinophilic esophagitis patients, respectively, 26 and 24 mast cells/HPF, P=0.391. CONCLUSION: Tryptase staining of mast cells differentiates eosinophilic esophagitis from reflux esophagitis.

RESUMO CONTEXTO: Os mastócitos detêm papel fundamental na resposta imuno-alérgica gastrintestinal. Assim, é razoável admitir que essas células sejam úteis no diagnóstico diferencial das gastroenteropatias eosinofílicas. OBJETIVO: Determinar se a análise quantitativa de mastócitos na mucosa esofágica permite discernir esofagite eosinofílica, esofagite eosinofílica responsiva ao inibidor de bomba de prótons e esofagite péptica por doença de refluxo gastroesofágico. MÉTODOS: Revisamos retrospectivamente os prontuários 53 crianças (idade: 7,8 anos; variação: 8-14 anos), atendidas consecutivamente, num serviço terciário e cujos diagnósticos definitivos estabelecidos após seguimento clínico foram esofagite eosinofílica (N=23), esofagite eosinofílica responsiva ao inibidor de bomba de prótons (N=15) e esofagite péptica por doença de refluxo gastroesofágico (N=15). As amostras histológicas foram revisadas quanto à contagem de eosinófilos na coloração de H-E e processadas para imunoistoquímica da triptase de mastócitos. RESULTADOS: Valores de eosinófilos/campo de maior aumento (CMA; 400X) >15 foram encontrados em 14 dos 15 pacientes com refluxo gastroesofágico. A média de eosinófilos/CMA foi similar nos pacientes com esofagite eosinofílica e com esofagite eosinofílica responsiva ao inibidor de bomba de prótons, respectivamente, 42 e 39 eosinófilos/CMA, P=0,47). Os valores de mastócitos triptase (+) foram superiores no epitélio esofágico dos pacientes com esofagite eosinofílica [mediana: 25 mastócitos/CMA; variação (17- 43) ] e na esofagite eosinofílica responsiva ao inibidor de bomba de prótons [25 (16-32) ], comparados aos pacientes com refluxo gastroesofágico [4(2-14) ], P<0,001. Não houve diferença entre a média de mastócitos/CMA nos pacientes com esofagite eosinofílica comparados aos com esofagite eosinofílica responsiva ao inibidor de bomba de prótons, respectivamente, 26 e 24 mastócitos/CMA, P=0,391. CONCLUSÃO: A coloração para mastócitos pela imunoistoquímica da triptase diferencia as esofagites eosinofílicas da esofagite péptica.