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Zenker's diverticulum develops because of a weakness in Killian's triangle, leading to a mucosal and submucosal herniation. Its treatment has evolved from morbid surgical interventions to safer endoscopic techniques such as peroral endoscopic myotomy (Z-POEM). Despite being a safe technique, Z-POEM is not free of complications such as perforations, bleeding, pneumoperitoneum, and pneumothorax, for which new endoscopic techniques have been developed. We present the case of a 53-year-old man taken to a Z-POEM who postoperatively presented dehiscence of the mucosotomy and a mediastinal collection, managed with a vacuum-assisted endoscopic closure device.

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Background: There are gaps in our understanding of the epidemiology of atopic dermatitis (AD) in adults. Objective: To evaluate the prevalence and severity of AD in adults from countries/regions within Asia, Eurasia, Latin America, Middle East, and Russia. Methods: This international, web-based survey was performed in Argentina, Brazil, China, Colombia, Egypt, Hong Kong, Israel, Malaysia, Mexico, Russia, Kingdom of Saudi Arabia (KSA), Singapore, Taiwan, Thailand, Turkey, and United Arab Emirates. Questionnaires were sent to adult members of online respondent panels for determination of AD and assessment of severity. A diagnosis of AD required respondents to meet the modified United Kingdom (UK) Working Party criteria and to self-report they had a physician diagnosis of AD. Severity of AD was determined using Patient-Oriented Scoring of Atopic Dermatitis (PO-SCORAD), Patient-Oriented Eczema Measure (POEM), and Patient Global Assessment (PGA). Results: Among respondents by country/region the prevalence of AD ranged from 3.4% in Israel to 33.7% in Thailand. The prevalence was generally higher in females versus males. Severity varied by scale, although regardless of scale the proportion of respondents with mild and moderate disease was higher than severe disease. PGA consistently resulted in the lowest proportion of severe AD (range 2.4% China - 10.8% Turkey) relative to PO-SCORAD (range 13.4% China - 41.6% KSA) and POEM (range 5.1% China - 16.6% Israel). Conclusions: This survey highlights the importance of AD in adults, with high prevalence and high morbidity among respondents and emphasizes that AD is not just a disease of childhood-there is disease persistence and chronicity in adults.

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ABSTRACT Background: Advanced achalasia cardia (AC) represents the end stage in the natural history of AC. Role of per oral endoscopic myotomy (POEM) in this technically difficult subset is emerging. Methods: Retrospective review of the patients who had undergone POEM for advanced AC with sigmoid esophagus. We assessed the technical success, clinical success and adverse event rate. Pre and post POEM Eckardt score (ES), integrated relaxation pressure-4sec (IRP-4), lower oesophageal sphincter pressure (LESP) and height and width of barium column at 5 minutes were noted. Results: Of the 85 patients who underwent POEM for AC, 10 patients had advanced AC with sigmoid esophagus of which eight were sigmoid and two were advanced sigmoid. The clinical and technical success was 100% with significant reduction of ES, IRP-4, LESP and height and width of barium column at 5 minutes. One patient had a minor adverse event in the form of mucosal injury that was closed with hemoclips. At a median follow up of 17 months there was no recurrence. Conclusion: Our study demonstrates POEM to be a safe and effective modality of treatment in this technically difficult subset of AC with sigmoid morphology.

RESUMO Contexto: Acalasia cárdia avançada representa o estágio final na história natural do megaesôfago. Está emergindo o papel da miotomia endoscópica peroral (POEM) neste subconjunto tecnicamente difícil. Métodos: Foi realizada uma revisão retrospectiva dos pacientes submetidos a POEM para tratamento do megaesôfago avançado. Avaliamos o sucesso técnico, o sucesso clínico e a taxa de eventos adversos. O escore de Eckardt, pré e pós POEM, a pressão integral de relaxamento de 4 seg (IRP-4), a pressão do esfíncter inferior do esôfago e a altura e largura da coluna de bário em 5 minutos, foram anotadas. Resultados: Dos 85 pacientes submetidos a POEM para acalasia cárdia, 10 pacientes apresentaram acalasia cárdia avançado com esôfago com aspecto sigmoide, dos quais dois eram muito avançados. O sucesso clínico e técnico foi de 100% com redução significativa do escore de Eckardt, do IRP-4, da pressão do esfíncter inferior do esôfago e da altura e largura da coluna bário em 5 minutos. Um paciente teve um pequeno evento adverso na forma de lesão mucosa que foi fechada com hemoclipes. Em um seguimento mediano de 17 meses não houve recorrência. Conclusão: Nosso estudo demonstra que a POEM é uma modalidade segura e eficaz de tratamento neste subconjunto tecnicamente difícil de megaesôfago com morfologia sigmoide.

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INTRODUCTION: Peroral endoscopic myotomy (POEM) demonstrated similar efficacy to surgical myotomy in the management of achalasia. However, gastroesophageal reflux disease (GERD) is common after POEM. The aim of this study is to identify factors associated with GERD after POEM. METHOD: After searching electronic databases, randomized trials and observational studies including patients with achalasia or other spastic esophageal disorders, treated by POEM, and providing GERD data were selected. GERD was evaluated by 3 methods: pH monitoring, endoscopic findings, and symptoms. For each method, an analysis was performed comparing the outcomes related to the following independent variables: full-thickness (FT) vs circular myotomy, anterior vs posterior, long myotomy vs short myotomy, naive vs previous treatment failure, previous Heller myotomy (HM) vs non-previous-HM, Type I vs II, Type I vs III, and Type II vs III. RESULTS: 2869 publications were identified, and 25 studies met criteria for inclusion in the qualitative analysis. Of these, 18 were included in the meta-analysis. According to the endoscopic findings, circular and anterior myotomy demonstrated a lower trend of GERD with borderline significance (p = 0.06; p = 0.07, respectively). In the pH monitoring and symptom analyses, circular myotomy, anterior myotomy, treatment naive, and non-HM patients were associated with a lower occurrence of GERD; however, no statistically significant difference was found. When comparing achalasia subtypes, no statistical difference was found in all analyses. CONCLUSION: This systematic review and meta-analysis suggest that a circular anterior approach may limit post-POEM GERD and should be considered in appropriate patients.

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BACKGROUND: Achalasia is the most common primary motor disorder of the esophagus, but its incidence in pediatric patients is low. Laparoscopic Heller myotomy (LHM) is the current surgical standard of care treatment. Per-oral endoscopic myotomy (POEM) has emerged as a safe and effective therapeutic alternative in adult patients. We herein report the outcomes of a cohort of pediatric patients with achalasia treated by POEM at a Chilean medical center. METHODS: This is a retrospective analysis of prospectively collected data on children who underwent POEM for esophageal achalasia. Clinical follow-up was evaluated by recording the Eckardt score, a high-resolution esophageal manometry (HREM) three months after the procedure, and an annual upper gastrointestinal endoscopy. RESULTS: Five patients with esophageal achalasia confirmed by HREM and with a mean age of 11 (5 to 15) years underwent POEM between 2017 and 2019. One patient had a previous LHM. No morbidity or mortality was observed. All patients resolved their dysphagia and no patient required further interventions. Mean Eckardt score reduced from 10 points preoperatively to 1 point postoperatively. Two patients currently have mild esophagitis (confirmed by endoscopy). CONCLUSION: Our results support the previously reported safety and effectiveness of POEM. Longer follow-up and larger cohorts will be important to confirm its role in the treatment of children with esophageal achalasia. TYPE OF STUDY: Treatment study. LEVEL OF EVIDENCE: Level IV.

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Achalasia is a primary motility disorder of the esophagus, and while there are several treatment options, there is no consensus regarding them. When therapeutic intervention for achalasia fails, a careful evaluation of the cause of the persistent or recurrent symptoms using upper endoscopy, esophageal manometry, and contrast radiologic studies is required to understand the cause of therapy failure and guide plans for subsequent treatment. Options for reintervention are the same as for primary intervention and include pneumatic dilation, botulinum toxin injection, peroral endoscopic myotomy, or redo esophageal myotomy. When reintervention fails or if the esophagus is not amenable to intervention and the disease is considered end-stage, esophagectomy is the last option to manage recurrent achalasia.

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No presente artigo, o autor parte da análise do poema "O amor", de Vladímir Maiakóvski, em que o sentimento amoroso é usado como estratégia revolucionária, para estabelecer relações com a desigualdade brasileira, a pandemia motivada pela disseminação do Coronavírus e o possível lugar do analista nesse contexto.

In this article, the author analyses the poem "The love", by Vladímir Maiakovski, in which the loving feeling is used as a revolutionary strategy, to establish relations with Brazilian inequality, the pandemics motivated by the spread of Coronavirus and the role of the psychotherapist in this context. ■

En el presente artículo, el autor parte del análisis del poema "El amor", de Vladímir Maiakóvski, en el cual el sentimiento de amor se usa como estrategia revolucionaria, para establecer relaciones con la desigualdad brasileña, la pandemia motivada por la propagación del Coronavirus y el posible lugar del analista en este contexto. ■

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INTRODUCTION AND AIMS: Achalasia is characterized by incomplete relaxation of the lower esophageal sphincter and esophageal aperistalsis. The efficacy of peroral endoscopic myotomy (POEM) is similar to that of the Heller myotomy, with an apparently greater prevalence of gastroesophageal reflux disease. Our aim was to determine the presence of GERD in a post-POEM cohort of Mexican patients with achalasia and follow-up of at least 12 months. MATERIALS AND METHODS: A retrospective cohort study was conducted on post-POEM patients with a minimum of 12 months of follow-up, within the time frame of 2012 to 2017. Pregnant patients were excluded. Serial endoscopy, pH study, and GERDQ application were performed. Univariate and bivariate data analyses were carried out and statistical significance was set at a P<0.05. RESULTS: Sixty-eight patients had post-POEM follow-up for 12 months. Of those patients, follow-up continued to 24 months for 58, 36 months for 47, 48 months for 39, and 60 months for 25. Mean patient age was 47.8±14.3 years, 57.3% of the patients were women, 77.9% were treatment-naïve, and 54.4% had type II achalasia. The pH study, endoscopy, and questionnaire were positive in 73, 28, and 18% at 3 months; 48, 35, and 13% at 6 months, and 55, 30, and 15% at 12 months, respectively. Once the proton pump inhibitor was begun, the percentages decreased to 5, 2, and 6% at 24 months; 6, 2, and 8% at 36 months; 4,1, and 6% at 48 months; and 3, 1, and 4% at 60 months, respectively. There was no relation between the efficacy of POEM and the presence or intensity of GERD. There were no secondary complications due to gastroesophageal reflux. CONCLUSIONS: The post-POEM prevalence of GERD was 50% in the short term (12 months), with no evidence of complications at the medium term or long term (60 months). Gastroesophageal reflux was adequately controlled through proton pump inhibitors administration in over 95% of the cases.

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Resumen Objetivos: presentar el desarrollo de modelos educativos para el aprendizaje de dos técnicas endoscópicas vigentes, ampliamente difundidas y de gran implicación clínica, con la única intención de permitir la adquisición de destrezas básicas y avanzadas a residentes y gastroenterólogos. Materiales y métodos: se idearon dos modelos sencillos, de muy bajo costo, fácilmente reproducibles y reutilizables, con los cuales se logra ejecutar la totalidad de los procedimientos descritos. Además, permiten al operador integrar el desarrollo de habilidades y la adquisición de los conceptos teóricos mínimos requeridos, sin las presiones generadas por el riesgo existente de complicaciones. Resultados: la tendencia actual a nivel mundial se conduce hacia el desarrollo de modelos de enseñanza que aceleren la curva de aprendizaje, así como de procedimientos altamente exigentes y asociados a complicaciones potencialmente graves. Con estos modelos es posible poner a prueba al endoscopista, mediante una evaluación continua y supervisada. Su implementación en unidades de gastroenterología es sencilla, sin la necesidad de una inversión superlativa o el desplazamiento a otros países. Conclusiones: se trata de un gran aporte al desarrollo científico y educativo de nuestro país, ya que la creación y la implementación de nuevas técnicas endoscópicas y su aprendizaje no deben ser asumidos por los pacientes. En este punto, estamos de acuerdo con los conceptos emitidos por diferentes asociaciones médicas respecto a que los cursos teórico-prácticos de corta duración -y en algunas ocasiones virtuales- no constituyen una formación mínima, requerida para lograr la acreditación.

Abstract Objectives: This article presents the development of educational models for learning two widespread recent endoscopic techniques which have great clinical implications. Its sole intention is to allow acquisition of basic and advanced skills by residents and gastroenterologists. Materials and methods: Two simple, very low cost, easily reproducible and reusable models were devised. Procedures are fully described in ways that allow the operator to integrate the development of skills and acquisition of the minimum theoretical concepts required without the pressures generated by risks of complications. Results: The current global trend is to develop teaching models that accelerate the learning curve for highly demanding procedures that are associated with potentially serious complications. With these models it is possible to test endoscopists through continuous supervised evaluations. Implementation by gastroenterology units can be done easily without the need for large investments or travel to other countries. Conclusions: This is a great contribution to the scientific and educational development of Colombia since neither development of new endoscopic techniques nor the process of learning how to perform them should put patients at risk. We agree with the ideas of numerous medical associations regarding theoretical-practical courses of short duration even though some virtual sessions, "do not constitute the minimum training required needed for accreditation".

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