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Characteristics of Symptomatic Belching in Patients With Belching Disorder and Patients Who Exhibit Gastroesophageal Reflux Disease With Belching
Journal of Neurogastroenterology and Motility ; : 231-239, 2021.
Article in English | WPRIM | ID: wpr-900397
ABSTRACT
Background/Aims@#Belching disorder (BD) is clinically distinct from gastroesophageal reflux disease (GERD) with belching. Supragastric belching (SGB) is closely associated with reflux episodes. This study investigates belch characteristics in association with reflux, compared between patients with BD and those who had GERD with belching. @*Methods@#Impedance pH monitoring data from 10 patients with BD and 10 patients with GERD who exhibited belching were retrospectively analyzed. Belches were considered “isolated“ or “reflux-related” and acidicon-acidic. Belch characteristics were compared between patients with BD and those with GERD. @*Results@#Symptomatic belches were more frequent in patients with BD than in patients with GERD (median, 160.5 vs 56.0, P < 0.05). SGB was the most common type in both groups; common subtypes comprised “isolated“ in patients with BD and “isolated during the reflux period” in patients with GERD. Reflux-related SGB was more common in patients with GERD than in BD (78.3% vs 45.2%, P < 0.005).Both “preceding belching” including the reflux period and acidic SGB were more common in patients with GERD than in BD (31.8% vs 8.6% and 38.1% vs 8.9%, both P < 0.05). Supragastric belch number positively correlated with all reflux episodes in patients with GERD (adjusted R2 = 0.572, P = 0.007). @*Conclusions@#BD is characterized by more belching, compared to GERD. SGB is more frequently associated with reflux in GERD than in BD; acidity may be related to GERD. In BD, SGB is typically non-acidic and unrelated to reflux. Distinct SGB characteristics may reflect different pathogenic mechanisms of reflux and associated symptoms.
Full text: Available Index: WPRIM (Western Pacific) Type of study: Diagnostic study Language: English Journal: Journal of Neurogastroenterology and Motility Year: 2021 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Diagnostic study Language: English Journal: Journal of Neurogastroenterology and Motility Year: 2021 Type: Article