Positive and negative impact of anti-reflux mucosal intervention on gastroesophageal reflux disease

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Abstract
Background Anti-reflux mucosal intervention (ARMI), including anti-reflux mucosectomy (ARMS) and anti-reflux mucosal ablation (ARMA), is a promising endoscopic treatment for gastroesophageal reflux disease (GERD). Few studies reported a detailed analysis of the objective reflux parameters. Methods Patients with chronic PPI-dependent GERD and receiving ARMI were prospectively enrolled. Comprehensive clinical symptom profiles, endoscopy results, and 24-h multichannel intraluminal impedance-pH (MII-pH) monitoring were collected and analyzed before and 3 months after ARMI. Results Twenty-three patients undergoing ARMI (11 ARMS and 12 ARMA) were enrolled. The median (IQR) operative time and post-procedure stays were 50 (46–56) min and 2 (2–2) days without major complications. 73.9% of patients reported subjective global improvement. A significant decrease in the total reflux symptom index score was noted from 12 (5–19) to 8 (4–12) (P = 0.010). The esophageal acid exposure time (AET) significantly decreased from 4.6 (2.8–6.9) to 2.1 (1.1–5.6) (P = 0.013), and the number of acid refluxes and DeMeester score were significantly reduced. Three patients (13%) had increased AET (3.4% to 6.1%, 6.3% to 15.4%, and 3.2% to 5.6%); however, all reported global improvement and two patients could discontinue PPI subjectively. One patient (4.3%) had worsened erosive esophagitis and reflux symptoms. 56.5% of patients stopped PPI. Conclusions ARMI is generally effective and safe in PPI-dependent patients. However, possible negative effects of ARMI exist in some patients; further application of MII-pH is necessitated to evaluate the treatment response after ARMI and avoid the detrimental effect of PPI discontinuation. Graph. Graphical abstract
Funding Information
  • National Taiwan University Hospital (NTUH. 110- 005025, NTUH 111-S0174)
  • Ministry of Science and Technology (MOST 108-2628-B-002-019, 109-2628-B-002-036--, 110-2628-B-002-048 -)

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