Abstract
Background
Esophagogastric junction obstruction (EGJO) post-fundoplication (PF) is difficult to identify with currently available tests. We aimed to assess the diagnostic accuracy of EGJ opening on functional lumen imaging probe (FLIP) and dilation outcome in FLIP-detected EGJO in PF dysphagia.
Methods
We prospectively collected data on PF patients referred to Esophageal Clinic over 18 months. EGJO diagnosis was made by (a) endoscopist’s description of a narrow EGJ/wrap area, (b) appearance of wrap obstruction or contrast/tablet retention on esophagram, or (c) EGJ-distensibility index (DI) < 2.8 mm2/mmHg on real-time FLIP. In patients with EGJO and dysphagia, EGJ dilation was performed to 20 mm, 30 mm, or 35 mm in a stepwise fashion. Outcome was assessed as % dysphagia improvement during phone call or on brief esophageal dysphagia questionnaire (BEDQ) score.
Results
Twenty-six patients were included, of whom 17 (65%) had a low EGJ-DI. No patients had a hiatal hernia greater than 3 cm. Dysphagia was the primary symptom in 17/26 (65%). In 85% (κ = 0.677) of cases, EGJ assessment (tight vs. open) was congruent between the combination of endoscopy (n = 26) and esophagram (n = 21) vs. EGJ-DI (n = 26) on FLIP. Follow-up data were available in 11 patients who had dilation based on a low EGJ-DI (4 with 20 mm balloon and 7 with ≥ 30 mm balloon). Overall, the mean % improvement in dysphagia was 60% (95% CI 37.7–82.3%, p = 0.0001). Nine out of 11 patients, including 6 out of 7 undergoing pneumatic dilation, had improvement ≥ 50% in dysphagia (mean % improvement 72.2%; 95% CI 56.1–88.4%, p = 0.0001).
Conclusions and inferences
Functional lumen imaging probe is an accurate modality for evaluating for EGJ obstruction PF. FLIP may be used to select patients who may benefit from larger diameter dilation.
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Acknowledgements
An abstract of this paper was accepted for oral presentation and presented virtually at Digestive Disease Week 2020.
Funding
Funding was provided by a Grant from the Emory University Department of Medicine to Dr. Anand S. Jain. No authors have a financial relationship with Medtronic, the manufacturer or FLIP.
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Salih Samo, Ramzi Mulki, Marie L. Godiers, Chuma G. Obineme, Lucie F. Calderon, John M. Bloch, Joyce J. Kim, Nikrad Shahnavaz, Shreya M. Raja, Srikrisha V. Patnana, Steven A. Keilin, Qiang Cai, Jennifer A. Christie, Shanthi Srinivasan, S. Scott Davis Jr., Edward Lin and Anand S. Jain have no conflicts of interest or financial ties to disclose. Field F. Willingham: Dr. Willingham reports research grants for clinical trials from Cancer Prevention Pharmaceuticals, Cook Medical, Boston Scientific, and CSA Medical, paid directly to institution. Otherwise, no conflicts of interest or financial ties to disclose.
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Samo, S., Mulki, R., Godiers, M.L. et al. Utilizing functional lumen imaging probe in directing treatment for post-fundoplication dysphagia. Surg Endosc 35, 4418–4426 (2021). https://doi.org/10.1007/s00464-020-07941-6
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DOI: https://doi.org/10.1007/s00464-020-07941-6