Practice patterns for eosinophilic esophagitis vary widely among Canadian gastroenterologists: a nationwide survey.

Introduction: Eosinophilic esophagitis (EoE) is a chronic allergic, type 2, immune-mediated condition of the oesophagus, resulting in dysmotility and oesophageal stricturing. This study aims to identify practice variation among Canadian gastroenterologists treating adults with EoE. Methods: A cross-sectional, web-based survey was distributed to Canadian gastroenterologists through the Canadian Association of Gastroenterology and administrations of Canadian universities. Results: Seventy gastroenterologists completed the survey, with 59% working in academic practice or research. Overall, 90% of gastroenterologists require histological evidence of EoE to establish a diagnosis of EoE, while 50% require clinical symptoms of oesophageal dysfunction; 39% of gastroenterologists take less than 5 biopsies when assessing for EoE, with variability in biopsy location. Only 51% of respondents took biopsies in every case presenting with acute food bolus. Proton pump inhibitors were the initial therapy of 70% of gastroenterologists, with 11% using topical steroids. The preferred dietary approach was the 6-food elimination diet in 36%, followed by the 2-food elimination diet in 26%. Overall, 27% of participants did not use histologic improvement and 63% did not use endoscopic improvement to evaluate treatment response. Use of EoE Endoscopic Reference Score (EREFS) is low, with 56% being either unaware of what EREFS is or never using it. Most respondents feel Canadian guidelines would be helpful in their practice. Conclusions: Eosinophilic esophagitis practice patterns among Canadian gastroenterologists are variable and differ from consensus guidelines. The development of Canadian guidelines and continuing medical education content can be considered to improve the management of EoE in Canada.