Clinical effectiveness of esophageal stricture dilation using an improved endoscopic attachment cap in adults with eosinophilic esophagitis

Abstract

Background

The improved endoscopic attachment cap has the following new features: 1) more rounded tip; 2) stepwise dilation in two 1-mm increments; 3) softer plastic, ensuring better contact with the endoscope tip; and 4) improved adhesive tape. We evaluated the feasibility and effectiveness of one-time esophageal stricture dilation using the new device in adults with eosinophilic esophagitis (EoE).

Methods

Patients prospectively included in the Swiss EoE cohort with esophageal strictures (diameter ≤16 mm) and stricture-related symptoms underwent dilation with the new device. Symptoms were assessed using the Eosinophilic Esophagitis Activity Index patient-reported outcomes instrument before and 2 weeks after a single dilation.

Results

60 patients (median age 42 years; 75% male) were evaluated. Bougienage was successful in all patients. Median esophageal diameter increased from 12 mm (interquartile range [IQR] 11–14) to 16 mm (IQR 14–16; P < 0.001). Median symptom severity dropped from 36 points (IQR 22–62) to 0 (IQR 0–12; P < 0.001). No device became detached and no severe adverse events were reported. Post-dilation pain was recorded in 31.7% (19/60).

Conclusions

Esophageal stricture dilation in adults with EoE using the improved endoscopic attachment cap was feasible, clinically effective, and environmentally friendly.

Publication History

Received: 03 December 2024

Accepted after revision: 02 April 2025

Article published online:
04 June 2025

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