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      Peroral endoscopic myotomy in a pediatric patient with refractory achalasia: a case report and review of the literature Translated title: Miotomía endoscópica vía oral en un paciente pediátrico con acalasia refractaria: reporte de caso y revisión de la literatura

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          Abstract

          ABSTRACT A 15-year-old male patient presented with dysphagia, regurgitation, weight loss and retrosternal pain. The diagnosis of achalasia was made 4 years before. The esophagogram revealed severe esophagus dilatation and the classic “bird-beak” termination. A Heller myotomy plus fundoplication and endoscopic balloon dilatation were conducted four months previously. Nevertheless, the symptoms persisted and the last high-resolution manometry study still showed achalasia type II. The patient underwent a peroral endoscopic esophageal myotomy (POEM). POEM is a feasible and safe procedure for experienced and properly- equipped health care delivery centers and could be used as a rescue treatment in refractory achalasia. We present the youngest patient with achalasia in our region who had a successful response to rescue POEM.

          Translated abstract

          RESUMEN Un paciente varón de 15 años, con el diagnóstico de acalasia realizado 4 años antes, acudió a evaluación por presentar disfagia, regurgitación, pérdida de peso y dolor restroesternal. El esofagograma baritado evidenció una dilatación severa del esófago y la terminación clásica en “pico de pájaro”. El paciente había sido sometido a una miotomía de Heller más fundoplicatura y posteriormente a una dilatación esofágica con balón 4 meses atrás. Sin embargo, los síntomas persistían y la última manometría de alta resolución reveló acalasia tipo II. Finalmente, se realizó una miotomía endoscópica por vía oral (POEM); el cual es un procedimiento seguro y accesible en centros experimentados y debidamente equipados, pudiendo ser una adecuada opción de tratamiento en casos de acalasia refractaria. Presentamos el caso del paciente más joven en nuestra región con acalasia con una respuesta exitosa a un POEM de rescate.

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          Most cited references19

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          Peroral endoscopic myotomy (POEM) for esophageal achalasia.

          Peroral endoscopic myotomy (POEM) was developed by our group to provide a less invasive permanent treatment for esophageal achalasia. POEM was performed in 17 consecutive patients with achalasia (10 men, 7 women; mean age 41.4 years). A long submucosal tunnel was created (mean length 12.4 cm), followed by endoscopic myotomy of circular muscle bundles of a mean total length of 8.1 cm (6.1 cm in distal esophagus and 2.0 cm in cardia). Smooth passage of an endoscope through the gastroesophageal junction was confirmed at the end of the procedure. In all cases POEM significantly reduced the dysphagia symptom score (from mean 10 to 1.3; P = 0.0003) and the resting lower esophageal sphincter (LES) pressure (from mean 52.4 mmHg to 19.9 mmHg; P = 0.0001). No serious complications related to POEM were encountered. During follow-up (mean 5 months), additional treatment or medication was necessary in only one patient (case 17) who developed reflux esophagitis (Los Angeles classification B); this was well controlled with regular intake of protein pump inhibitors (PPIs). The short-term outcome of POEM for achalasia was excellent; further studies on long-term efficacy and on comparison of POEM with other interventional therapies are awaited. Georg Thieme Verlag KG Stuttgart. New York.
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            Peroral endoscopic myotomy: a meta-analysis.

            Background and study aim: Peroral endoscopic myotomy (POEM) is a relatively novel minimally invasive technique that is used to treat achalasia and other esophageal motility disorders. We systematically reviewed the medical literature in order to evaluate the safety and efficacy of POEM. Methods: We performed a comprehensive review and meta-analysis of studies published up to March 2016 that reported on clinical outcomes of POEM. Five databases were searched: MEDLINE, EMBASE, Ovid, CINAHL, and Cochrane. Results: A total of 36 studies involving 2373 patients were included in the review. Clinical success (Eckardt score ≤ 3) was achieved in 98 % (95 % confidence interval [CI] 97 % - 100 %) of patients after the procedure. The mean Eckardt score decreased from 6.9 ± 0.15 preoperatively to 0.77 ± 0.10, 1.0 ± 0.10, and 1.0 ± 0.08 within 1, 6, and 12 months of treatment. In addition, there were significant decreases in the average lower esophageal sphincter pressure, integrated relaxation pressure, and the average heights of the barium column following a timed barium esophagogram after the procedure. After a mean follow-up of 8 months post-procedure, the rates of symptomatic gastroesophageal reflux, esophagitis on esophagogastroduodenoscopy, and abnormal acid exposure were 8.5 % (95 %CI 4.9 % - 13 %), 13 % (95 %CI 5.0 % - 23 %), and 47 % (95 %CI 21 % - 74 %), respectively. Conclusions: POEM appears to be safe and effective based on the large body of current evidence, and warrants consideration as first-line therapy when an expert operator is available.
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              ACG clinical guideline: diagnosis and management of achalasia.

              Achalasia is a primary motor disorder of the esophagus characterized by insufficient lower esophageal sphincter relaxation and loss of esophageal peristalsis. This results in patients' complaints of dysphagia to solids and liquids, regurgitation, and occasional chest pain with or without weight loss. Endoscopic finding of retained saliva with puckered gastroesophageal junction or barium swallow showing dilated esophagus with birds beaking in a symptomatic patient should prompt appropriate diagnostic and therapeutic strategies. In this ACG guideline the authors present an evidence-based approach in patients with achalasia based on a comprehensive review of the pertinent evidence and examination of relevant published data.
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                Author and article information

                Journal
                rgp
                Revista de Gastroenterología del Perú
                Rev. gastroenterol. Perú
                Sociedad de Gastroenterología del Perú (Lima, , Peru )
                1022-5129
                January 2021
                : 41
                : 1
                : 37-40
                Affiliations
                [2] Lima orgnameClínica Internacional Peru
                [1] Lima orgnameHospital Nacional Edgardo Rebagliati Martins Peru
                [3] Lima orgnameClínica Delgado and Oncosalud Peru
                Article
                S1022-51292021000100037 S1022-5129(21)04100100037
                10.47892/rgp.2021.411.1242
                be4e6bf3-babe-4395-a9e1-fbbf4ff8586a

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 01 March 2021
                : 23 June 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 19, Pages: 4
                Product

                SciELO Peru

                Categories
                Case report

                Esophageal achalasia,Adolescent,Pyloromyotomy,Myotomy,Endoscopy,Acalasia del esófago,Adolescente,Piloromiotomia,Miotomía,Endoscopía

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