PMID- 35973148 OWN - NLM STAT- MEDLINE DCOM- 20230104 LR - 20231002 IS - 1572-0241 (Electronic) IS - 0002-9270 (Print) IS - 0002-9270 (Linking) VI - 117 IP - 10 DP - 2022 Oct 1 TI - Optimal Wireless Reflux Monitoring Metrics to Predict Discontinuation of Proton Pump Inhibitor Therapy. PG - 1573-1582 LID - 10.14309/ajg.0000000000001871 [doi] AB - INTRODUCTION: Ambulatory reflux monitoring performed off proton pump inhibitor (PPI) is the gold standard diagnostic test for nonerosive gastroesophageal reflux disease (GERD). However, the diagnostic metrics and optimal duration of monitoring are not well defined. This study evaluated the performance of multiple metrics across distinct durations of wireless reflux monitoring off PPI against the ability to discontinue PPI therapy in patients with suboptimal PPI response. METHODS: This single-arm clinical trial performed over 4 years at 2 centers enrolled adults with troublesome GERD symptoms and inadequate response to > 8 weeks of PPI. Participants underwent 96-hour wireless pH monitoring off PPI. Primary outcome was whether the subject successfully discontinued PPI or resumed PPI within 3 weeks. RESULTS: Of 132 participants, 30% discontinued PPI. Among multiple metrics assessed, total acid exposure time (AET) of 4.0% performed best in predicting PPI discontinuation (odds ratio 2.9 [95% confidence interval 1.4, 6.4]; P = 0.006), with other thresholds of AET and DeMeester score performing comparably. AET was significantly higher on day 1 of monitoring compared with other days, and prognostic performance significantly declined when only assessing the first 48 hours of monitoring (area under the curve for 96 hours 0.63 vs area under the curve for 48 hours 0.57; P = 0.01). DISCUSSION: This clinical trial highlights the AET threshold of 4.0% as a high-performing prognostic marker of PPI discontinuation. 96 hours of monitoring performed better than 48 hours, in predicting ability to discontinue PPI. These data can inform current diagnostic approaches for patients with GERD symptoms who are unresponsive to PPI therapy. CI - Copyright (c) 2022 by The American College of Gastroenterology. FAU - Yadlapati, Rena AU - Yadlapati R AUID- ORCID: 0000-0002-7872-2033 AD - Division of Gastroenterology, University of California, San Diego School of Medicine, La Jolla, California, USA. FAU - Gyawali, C Prakash AU - Gyawali CP AD - Division of Gastroenterology, Washington University School of Medicine, St. Louis, Missouri, USA. FAU - Masihi, Melina AU - Masihi M AD - Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA. FAU - Carlson, Dustin A AU - Carlson DA AD - Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA. FAU - Kahrilas, Peter J AU - Kahrilas PJ AD - Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA. FAU - Nix, Billy Darren AU - Nix BD AD - Division of Gastroenterology, Washington University School of Medicine, St. Louis, Missouri, USA. FAU - Jain, Anand AU - Jain A AD - Division of Digestive Diseases, Emory University School of Medicine, Atlanta, Georgia, USA. FAU - Triggs, Joseph R AU - Triggs JR AD - Division of Gastroenterology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA. FAU - Vaezi, Michael F AU - Vaezi MF AD - Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Kia, Leila AU - Kia L AD - Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA. FAU - Kaizer, Alexander AU - Kaizer A AD - University of Colorado, Anschutz Medical Campus, Colorado School of Public Health, Department of Biostatistics and Informatics, Aurora, Colorado, USA. FAU - Pandolfino, John E AU - Pandolfino JE AD - Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA. LA - eng SI - ClinicalTrials.gov/NCT03202537 GR - K23 DK125266/DK/NIDDK NIH HHS/United States GR - R01 DK092217/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20220610 PL - United States TA - Am J Gastroenterol JT - The American journal of gastroenterology JID - 0421030 RN - 0 (Proton Pump Inhibitors) SB - IM MH - Adult MH - Humans MH - *Esophageal pH Monitoring MH - *Gastroesophageal Reflux/diagnosis/drug therapy MH - Prognosis MH - Proton Pump Inhibitors/therapeutic use PMC - PMC9532366 MID - NIHMS1814711 EDAT- 2022/08/17 06:00 MHDA- 2022/10/07 06:00 PMCR- 2023/10/01 CRDT- 2022/08/16 16:04 PHST- 2022/02/01 00:00 [received] PHST- 2022/06/08 00:00 [accepted] PHST- 2022/08/17 06:00 [pubmed] PHST- 2022/10/07 06:00 [medline] PHST- 2022/08/16 16:04 [entrez] PHST- 2023/10/01 00:00 [pmc-release] AID - 00000434-202210000-00015 [pii] AID - 10.14309/ajg.0000000000001871 [doi] PST - ppublish SO - Am J Gastroenterol. 2022 Oct 1;117(10):1573-1582. doi: 10.14309/ajg.0000000000001871. Epub 2022 Jun 10.