Bailey Su1,2, Stephanie Novak3, Zachary M Callahan3, Kristine Kuchta3, JoAnn Carbray3, Michael B Ujiki3. 1. Department of Surgery, Northshore University HealthSystem, 2650 Ridge Ave, GCSI Suite B665, Evanston, IL, 60201, USA. bailey.su@uchospitals.edu. 2. Department of Surgery, University of Chicago, Chicago, IL, USA. bailey.su@uchospitals.edu. 3. Department of Surgery, Northshore University HealthSystem, 2650 Ridge Ave, GCSI Suite B665, Evanston, IL, 60201, USA.
Abstract
INTRODUCTION: The purpose of this study is to evaluate the utility of using a functional lumen imaging probe (EndoFLIP™) intra-operatively during hiatal hernia repair and fundoplication. Additionally, we hypothesize that these measurements correlate with long-term outcomes. METHODS: A prospectively maintained quality database was queried. Between 2013 and 2018, 175 patients underwent laparoscopic fundoplication, the majority of which also had a hiatal hernia repair. The EndoFLIP™ was used to measure minimum diameter (Dmin), balloon pressure, and distensibility index (DI) at different timepoints throughout the operation. Clinical outcomes were measured up to 2 years after treatment. RESULTS: Crural closure and fundoplication resulted in a significant increase in balloon pressure and decrease in DI when compared to initial measurements as well as measurements taken after hernia reduction. After 1 year, patients with a final DI < 2.0 mm2/mmHg reported significantly more gas bloat and dysphagia than those with a final DI ≥ 2.0 mm2/mmHg (p = 0.040 and p = 0.025, respectively). This disparity became even more dramatic at 2 years (p = 0.006 and p = 0.004, respectively), with a final DI < 2.0 mm2/mmHg being significantly associated with higher prevalence of daily gas bloat (43.8% vs. 12.0%; p = 0.03). Additionally, patients with a final DI between 2.0 and 3.5 mm2/mmHg reported significantly lower Reflux Symptom Index scores at one year compared to those with a final DI < 2.0 or > 3.5 mm2/mmHg (p = 0.042). CONCLUSION: EndoFLIP™ measurements correlate well with patient outcomes, with a final DI between 2 and 3.5 mm2/mmHg potentially being ideal. The EndoFLIP™ can be a useful adjunct in the operating room by providing objective measurements of esophageal distensibility after crural closure and fundoplication.
INTRODUCTION: The purpose of this study is to evaluate the utility of using a functional lumen imaging probe (EndoFLIP™) intra-operatively during hiatal hernia repair and fundoplication. Additionally, we hypothesize that these measurements correlate with long-term outcomes. METHODS: A prospectively maintained quality database was queried. Between 2013 and 2018, 175 patients underwent laparoscopic fundoplication, the majority of which also had a hiatal hernia repair. The EndoFLIP™ was used to measure minimum diameter (Dmin), balloon pressure, and distensibility index (DI) at different timepoints throughout the operation. Clinical outcomes were measured up to 2 years after treatment. RESULTS: Crural closure and fundoplication resulted in a significant increase in balloon pressure and decrease in DI when compared to initial measurements as well as measurements taken after hernia reduction. After 1 year, patients with a final DI < 2.0 mm2/mmHg reported significantly more gas bloat and dysphagia than those with a final DI ≥ 2.0 mm2/mmHg (p = 0.040 and p = 0.025, respectively). This disparity became even more dramatic at 2 years (p = 0.006 and p = 0.004, respectively), with a final DI < 2.0 mm2/mmHg being significantly associated with higher prevalence of daily gas bloat (43.8% vs. 12.0%; p = 0.03). Additionally, patients with a final DI between 2.0 and 3.5 mm2/mmHg reported significantly lower Reflux Symptom Index scores at one year compared to those with a final DI < 2.0 or > 3.5 mm2/mmHg (p = 0.042). CONCLUSION: EndoFLIP™ measurements correlate well with patient outcomes, with a final DI between 2 and 3.5 mm2/mmHg potentially being ideal. The EndoFLIP™ can be a useful adjunct in the operating room by providing objective measurements of esophageal distensibility after crural closure and fundoplication.
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