CC BY 4.0 · Endoscopy 2024; 56(12): 897-905
DOI: 10.1055/a-2333-5232
Original article

Antireflux mucosectomy for gastroesophageal reflux disease: efficacy and the mechanism of action

1   Gastroenterology and Hepatology, Amsterdam UMC Location AMC, Amsterdam, Netherlands (Ringgold ID: RIN26066)
2   Gastroenterology, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands (Ringgold ID: RIN571165)
,
Renske A.B. Oude Nijhuis
1   Gastroenterology and Hepatology, Amsterdam UMC Location AMC, Amsterdam, Netherlands (Ringgold ID: RIN26066)
2   Gastroenterology, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands (Ringgold ID: RIN571165)
,
Roos E. Pouw
1   Gastroenterology and Hepatology, Amsterdam UMC Location AMC, Amsterdam, Netherlands (Ringgold ID: RIN26066)
2   Gastroenterology, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands (Ringgold ID: RIN571165)
,
Albert J. Bredenoord
1   Gastroenterology and Hepatology, Amsterdam UMC Location AMC, Amsterdam, Netherlands (Ringgold ID: RIN26066)
2   Gastroenterology, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands (Ringgold ID: RIN571165)
› Author Affiliations
Clinical Trial: Registration number (trial ID): NL8246, Trial registry: Netherlands National Trial Register (http://www.trialregister.nl), Type of Study: Interventional


Abstract

Background Previous studies suggested that antireflux mucosectomy (ARMS) is effective in reducing reflux symptoms and total acid exposure, although the mechanism is unknown. Our objective was to investigate the effect of ARMS on reflux parameters and its mechanism of action.

Methods Gastroesophageal reflux disease (GERD) patients with insufficient symptom control despite a twice-daily proton pump inhibitor (PPI) underwent a piecemeal multiband mucosectomy of 50% of the circumference of the esophagogastric junction (EGJ), extending 2 cm into the cardia. The primary end point was the total number of reflux episodes during 24-hour pH-impedance studies.

Results 11 patients (8 men; median age 37 [interquartile range (IQR) 32–57] years) were treated, with one patient subsequently lost to follow-up. ARMS reduced the median (IQR) number of total reflux episodes (74 [60–82] vs. 37 [28–66]; P = 0.008) and total acid exposure time (8.7% [6.4%–12.7%] vs. 5.3% [3.5%–6.7%]; P = 0.03). Treatment reduced the median (IQR) number of transient lower esophageal sphincter relaxations (TLESRs) during a 90-minute postprandial period (4 [1–8] vs. 2 [1–4]; P = 0.03) and reflux symptom scores (3.6 [3.6–3.9] vs. 1.6 [0.7–2.7]; P = 0.005). Treatment did not increase the mean (SD) dysphagia scores (8.2 [7.3] vs. 8.5 [6.5]) or change the EGJ distensibility on impedance planimetry (4.4 [2.1] vs. 4.3 [2.2] mm2/mmHg). One delayed post-procedural bleed requiring repeat endoscopy occurred (10%); no strictures developed.

Conclusion ARMS is an effective treatment option in PPI-refractory GERD, reducing acid exposure, reflux episodes, and symptoms. While its working mechanism could not be explained by a difference in distensibility, a reduction in TLESRs might play a role.

Supplementary Material



Publication History

Received: 14 December 2023

Accepted after revision: 23 May 2024

Accepted Manuscript online:
27 May 2024

Article published online:
09 July 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).

Georg Thieme Verlag KG
Oswald-Hesse-Straße 50, 70469 Stuttgart, Germany

 
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