Journal
GASTROINTESTINAL ENDOSCOPY
Volume 90, Issue 5, Pages 754-+Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.gie.2019.04.228
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Background and Aims: Recent studies have reported that pyloric distensibility was altered in 30% to 50% of patients with gastroparesis, and this was correlated with gastric emptying and symptom severity. The aim of this study was to assess whether pyloric distensibility measurement was predictive of symptomatic response after intrapyloric botulinum toxin (BT) injection. Methods: Pyloric distensibility was measured using the EndoFLIP system (Crospon, Galway, Ireland) before intrapyloric BT injection. Altered pyloric distensibility was defined as distensibility below 10 mm(2)/mm Hg. Total symptomatic score (TSS), dyspeptic symptoms, Gastrointestinal Quality of Life Index (GIQLI), and gastric emptying were investigated prospectively before and 3 months after BT injection. Results: Nineteen of 35 patients had altered pyloric distensibility. In those patients, TSS decreased at 3 months from 13.5 to 10.5 (P < .01), whereas it remained unchanged in patients with normal pyloric distensibility (P=.7). Gastric fullness (from 3.5 to 2.5; P=.03) and bloating (from 3.0 to 2.0; P=.01) were the only symptoms that improved in patients with altered pyloric distensibility, whereas none of them was improved in patients with normal pyloric distensibility. GIQLI score increased from 59.5 to 76.5 in patients with altered pyloric distensibility (P=.02), whereas there was no statistical difference (P=.43) in patients with normal pyloric distensibility. In patients with altered pyloric distensibility, gastric emptying half time was 223 minutes before and 190 minutes 3 months after injection (P=.02), whereas it remained unchanged in patients with normal pyloric distensibility (P=.6). Conclusions: Pyloric distensibility measurement before intrapyloric BT injection predicted symptomatic and quality of life response 3 months after injection in patients with gastroparesis.
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