{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,10]],"date-time":"2026-11-10T18:47:45Z","timestamp":1794336465992,"version":"4.9.0"},"reference-count":32,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2020,2,25]],"date-time":"2020-02-25T00:00:00Z","timestamp":1582588800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Neurogastroenterology Motil"],"published-print":{"date-parts":[[2020,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The functional lumen imaging probe (FLIP) system is an FDA\u2010approved tool for dynamic evaluation of the esophagogastric junction (EGJ). Even though commercially available since 2009, FLIP utilization remains low, partly due to lack of consensus in methodology and interpretation. Therefore, we aimed to analyze the influence of concurrent endoscopy on FLIP measurements.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>In this single\u2010center study, we reviewed data from 93 patients undergoing FLIP for symptomatic esophageal motility disorders between 2016 and 2018. During sedated endoscopy, we measured luminal values (distensibility, cross\u2010sectional area (CSA), and balloon pressure) at the EGJ and distal esophagus using 30, 40, and 50\u00a0mL distension volumes, with and without concurrent endoscope presence. All recorded values were compared at the various distension volumes between the two measurements using a Wilcoxon rank sum test.<\/jats:p><\/jats:sec><jats:sec><jats:title>Key Results<\/jats:title><jats:p>There was a significant difference in distensibility and CSA with index distension volume (40\u00a0mL) at the EGJ comparing the two measurements: Lower median distensibility was 2.1\u00a0mm<jats:sup>2<\/jats:sup>\u00a0mm\u00a0Hg<jats:sup>\u22121<\/jats:sup> in the group with concurrent inserted endoscope, respectively, 3.4\u00a0mm<jats:sup>2<\/jats:sup>\u00a0mm\u00a0Hg<jats:sup>\u22121<\/jats:sup> without endoscope (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a0.001), and median CSA was 86.0 resp. 110.0\u00a0mm<jats:sup>2<\/jats:sup> (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a0.001). No significant difference could be found in the measurements of the distal esophagus.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions &amp; Inferences<\/jats:title><jats:p>Our results show a significant difference in FLIP measurements with and without endoscope presence. This underlines the importance of establishing a consensus of a standardized FLIP protocol to define normal luminal values and guiding future FLIP diagnostic studies.<\/jats:p><\/jats:sec>","DOI":"10.1111\/nmo.13823","type":"journal-article","created":{"date-parts":[[2020,2,26]],"date-time":"2020-02-26T04:40:22Z","timestamp":1582692022000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Endoscope presence during endoluminal functional lumen imaging probe (FLIP) influences FLIP metrics in the evaluation of esophageal dysmotility"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0426-5658","authenticated-orcid":false,"given":"Amanda","family":"Bianca","sequence":"first","affiliation":[{"name":"Division of Gastroenterology and Hepatology University Hospital Zurich Zurich 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