One year comprehensive prospective follow-up of achalasia patients after peroral endoscopic myotomy

AbstractBackground and aims Peroral endoscopic myotomy (POEM) is an established therapy for achalasia, but outcome evaluation has often been limited to Eckardt score (ES). The present study was aimed to improve knowledge about outcome evaluation and predictive outcome factors by performing a compreh...

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Main Authors: Helge Evensen, Milada Cvancarova Småstuen, Anselm Schulz, Vendel Kristensen, Lene Larssen, Jorunn Skattum, Olav Sandstad, Truls Hauge, Asle W. Medhus
Format: Article
Language:English
Published: Taylor & Francis Group 2021-01-01
Series:Annals of Medicine
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/07853890.2021.2005253
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author Helge Evensen
Milada Cvancarova Småstuen
Anselm Schulz
Vendel Kristensen
Lene Larssen
Jorunn Skattum
Olav Sandstad
Truls Hauge
Asle W. Medhus
author_facet Helge Evensen
Milada Cvancarova Småstuen
Anselm Schulz
Vendel Kristensen
Lene Larssen
Jorunn Skattum
Olav Sandstad
Truls Hauge
Asle W. Medhus
author_sort Helge Evensen
collection DOAJ
description AbstractBackground and aims Peroral endoscopic myotomy (POEM) is an established therapy for achalasia, but outcome evaluation has often been limited to Eckardt score (ES). The present study was aimed to improve knowledge about outcome evaluation and predictive outcome factors by performing a comprehensive objective evaluation of achalasia patients treated by POEM.Methods This single centre prospective study reports outcome data 12 months after POEM in treatment-naive achalasia patients. A predefined follow-up protocol included ES, high resolution manometry, 24-h pH measurement, upper endoscopy and timed barium esophagogram (TBE). Univariate and multivariate regression analyses were performed to analyze association between post-POEM variables and identify predictive factors for objective outcome.Results Fifty patients were included with a drop-out rate of <5%. ES, lower oesophageal sphincter pressures, TBE heights and maximal oesophageal diameter were all reduced after POEM (p < .001), and 28% (13/47) of the patients had a positive 24-h pH registration. An oesophageal diameter >3 cm after POEM was associated with treatment failure assessed by ES (p = .04) and TBE (p = .03). Advanced achalasia stage (p = .02) and long symptom duration (p = .04) were identified as independent predictive factors for poor outcome assessed by TBE.Conclusions The present study confirms that POEM is an efficient therapy for achalasia. The comprehensive objective evaluation after POEM demonstrates that long symptom duration and major changes in oesophageal anatomy at diagnosis imply poor treatment outcome, and a post-POEM dilated oesophagus is associated with treatment failure.Key messagesPeroral endoscopic myotomy (POEM) is established as a safe and effective therapy for achalasia.Timed barium esophagogram offers objective variables that are valuable in treatment response evaluation.Advanced achalasia stage and long symptom duration are predictive factors for poor objective treatment response after POEM.
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spelling doaj.art-c2c17c22c5f64316b399de9ee3f4f3272023-12-19T16:46:27ZengTaylor & Francis GroupAnnals of Medicine0785-38901365-20602021-01-015312227223510.1080/07853890.2021.2005253One year comprehensive prospective follow-up of achalasia patients after peroral endoscopic myotomyHelge Evensen0Milada Cvancarova Småstuen1Anselm Schulz2Vendel Kristensen3Lene Larssen4Jorunn Skattum5Olav Sandstad6Truls Hauge7Asle W. Medhus8Department of Gastroenterology, Oslo University Hospital, Oslo, NorwayDepartment of Gastroenterology, Oslo University Hospital, Oslo, NorwayDepartment of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, NorwayDepartment of Gastroenterology, Oslo University Hospital, Oslo, NorwayDepartment of Gastroenterology, Oslo University Hospital, Oslo, NorwayDepartment of Abdominal and Pediatric Surgery, Oslo University Hospital, Oslo, NorwayDepartment of Gastroenterology, Oslo University Hospital, Oslo, NorwayDepartment of Gastroenterology, Oslo University Hospital, Oslo, NorwayDepartment of Gastroenterology, Oslo University Hospital, Oslo, NorwayAbstractBackground and aims Peroral endoscopic myotomy (POEM) is an established therapy for achalasia, but outcome evaluation has often been limited to Eckardt score (ES). The present study was aimed to improve knowledge about outcome evaluation and predictive outcome factors by performing a comprehensive objective evaluation of achalasia patients treated by POEM.Methods This single centre prospective study reports outcome data 12 months after POEM in treatment-naive achalasia patients. A predefined follow-up protocol included ES, high resolution manometry, 24-h pH measurement, upper endoscopy and timed barium esophagogram (TBE). Univariate and multivariate regression analyses were performed to analyze association between post-POEM variables and identify predictive factors for objective outcome.Results Fifty patients were included with a drop-out rate of <5%. ES, lower oesophageal sphincter pressures, TBE heights and maximal oesophageal diameter were all reduced after POEM (p < .001), and 28% (13/47) of the patients had a positive 24-h pH registration. An oesophageal diameter >3 cm after POEM was associated with treatment failure assessed by ES (p = .04) and TBE (p = .03). Advanced achalasia stage (p = .02) and long symptom duration (p = .04) were identified as independent predictive factors for poor outcome assessed by TBE.Conclusions The present study confirms that POEM is an efficient therapy for achalasia. The comprehensive objective evaluation after POEM demonstrates that long symptom duration and major changes in oesophageal anatomy at diagnosis imply poor treatment outcome, and a post-POEM dilated oesophagus is associated with treatment failure.Key messagesPeroral endoscopic myotomy (POEM) is established as a safe and effective therapy for achalasia.Timed barium esophagogram offers objective variables that are valuable in treatment response evaluation.Advanced achalasia stage and long symptom duration are predictive factors for poor objective treatment response after POEM.https://www.tandfonline.com/doi/10.1080/07853890.2021.2005253Achalasiaperoral endoscopic myotomyobjective outcome evaluationpredictive outcome factorsgastroesophageal reflux disease
spellingShingle Helge Evensen
Milada Cvancarova Småstuen
Anselm Schulz
Vendel Kristensen
Lene Larssen
Jorunn Skattum
Olav Sandstad
Truls Hauge
Asle W. Medhus
One year comprehensive prospective follow-up of achalasia patients after peroral endoscopic myotomy
Annals of Medicine
Achalasia
peroral endoscopic myotomy
objective outcome evaluation
predictive outcome factors
gastroesophageal reflux disease
title One year comprehensive prospective follow-up of achalasia patients after peroral endoscopic myotomy
title_full One year comprehensive prospective follow-up of achalasia patients after peroral endoscopic myotomy
title_fullStr One year comprehensive prospective follow-up of achalasia patients after peroral endoscopic myotomy
title_full_unstemmed One year comprehensive prospective follow-up of achalasia patients after peroral endoscopic myotomy
title_short One year comprehensive prospective follow-up of achalasia patients after peroral endoscopic myotomy
title_sort one year comprehensive prospective follow up of achalasia patients after peroral endoscopic myotomy
topic Achalasia
peroral endoscopic myotomy
objective outcome evaluation
predictive outcome factors
gastroesophageal reflux disease
url https://www.tandfonline.com/doi/10.1080/07853890.2021.2005253
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