Kia Vosoughi1, Yervant Ichkhanian1, Jérémie Jacques2, A Aziz Aadam3, Petros C Benias4, Ryan Law5, William L Hasler5, Andrew Canakis6, Olivier Ragi2, Joseph Triggs3, Nicole Bowers5, Olaya I Brewer Gutierrez1, Vivek Kumbhari1, Anthony N Kalloo1, Robert S Bulat1, John E Pandolfino7, Mouen A Khashab1. 1. Division of Gastroenterology and Hepatology, Johns Hopkins Hospital, Baltimore, Maryland, USA. 2. Gastroenterology Department, Dupuytren University Hospital, Limoges, France. 3. Division of Gastroenterology, Northwestern University, Chicago, Illinois, USA. 4. Division of Gastroenterology, Zucker School of Medicine at Hofstra/Northwell, Long Island Jewish Medical Center, Northwell Health System, New Hyde Park, New York, USA. 5. Division of Gastroenterology, University of Michigan, Ann Arbor, Michigan, USA. 6. Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA. 7. Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.
Abstract
BACKGROUND AND AIMS: Endoluminal functional luminal imaging probe (EndoFLIP) is an imaging tool that measures the physiologic characteristics of GI sphincters. In this study, we used EndoFLIP to evaluate the association between the pyloric physiologic measurements and the clinical outcomes of gastric peroral endoscopic myotomy (G-POEM) in patients with refractory gastroparesis. METHODS: Thirty-seven patients from 5 centers who underwent G-POEM for management of refractory gastroparesis and had EndoFLIP measurements were evaluated. Cross-sectional area (CSA), balloon pressure, and the distensibility index (DI) of the pylorus were evaluated by EndoFLIP at 40 mL and 50 mL balloon fills before and after G-POEM. One-year clinical success and change in gastric emptying study 3 months after the G-POEM procedure were compared with the EndoFLIP measurements. RESULTS: Clinical success was achieved in 26 (70%) patients. Post-G-POEM CSA and DI were significantly higher in the clinical success group with both 40-mL volume distension (CSA: 89.9 ± 64.8 vs 172.5 ± 71.9 mm2, P =.003; DI: 5.8 ± 4.4 vs 8.8 ± 6.1 mm2/mm Hg, P =.043) and 50-mL volume distention (CSA: 140.1 ± 89.9 vs 237.5 ± 80.3 mm2, P =.003; DI: 5.6 ± 3.3 vs 9.9 ± 6.6 mm2/mm Hg, P =.049). CSA using 40-mL volume distention with an area under the curve of 0.83 yielded a specificity of 91% and a sensitivity of 71% at a cutoff point of 154 mm2. CONCLUSIONS: Post-G-POEM CSA of the pylorus is associated with clinical success and improvement in a gastric emptying scan after G-POEM. EndoFLIP measurements of the pylorus have the potential to be used as a tool to predict the clinical outcome of G-POEM.
BACKGROUND AND AIMS: Endoluminal functional luminal imaging probe (EndoFLIP) is an imaging tool that measures the physiologic characteristics of GI sphincters. In this study, we used EndoFLIP to evaluate the association between the pyloric physiologic measurements and the clinical outcomes of gastric peroral endoscopic myotomy (G-POEM) in patients with refractory gastroparesis. METHODS: Thirty-seven patients from 5 centers who underwent G-POEM for management of refractory gastroparesis and had EndoFLIP measurements were evaluated. Cross-sectional area (CSA), balloon pressure, and the distensibility index (DI) of the pylorus were evaluated by EndoFLIP at 40 mL and 50 mL balloon fills before and after G-POEM. One-year clinical success and change in gastric emptying study 3 months after the G-POEM procedure were compared with the EndoFLIP measurements. RESULTS: Clinical success was achieved in 26 (70%) patients. Post-G-POEM CSA and DI were significantly higher in the clinical success group with both 40-mL volume distension (CSA: 89.9 ± 64.8 vs 172.5 ± 71.9 mm2, P =.003; DI: 5.8 ± 4.4 vs 8.8 ± 6.1 mm2/mm Hg, P =.043) and 50-mL volume distention (CSA: 140.1 ± 89.9 vs 237.5 ± 80.3 mm2, P =.003; DI: 5.6 ± 3.3 vs 9.9 ± 6.6 mm2/mm Hg, P =.049). CSA using 40-mL volume distention with an area under the curve of 0.83 yielded a specificity of 91% and a sensitivity of 71% at a cutoff point of 154 mm2. CONCLUSIONS: Post-G-POEM CSA of the pylorus is associated with clinical success and improvement in a gastric emptying scan after G-POEM. EndoFLIP measurements of the pylorus have the potential to be used as a tool to predict the clinical outcome of G-POEM.
Authors: Michael Camilleri; Braden Kuo; Linda Nguyen; Vida M Vaughn; Jessica Petrey; Katarina Greer; Rena Yadlapati; Thomas L Abell Journal: Am J Gastroenterol Date: 2022-06-03 Impact factor: 12.045
Authors: Maria Chiara Verga; Stefano Mazza; Francesco Azzolini; Fabrizio Cereatti; Clara Benedetta Conti; Andrea Drago; Sara Soro; Biagio Elvo; Roberto Grassia Journal: World J Gastrointest Surg Date: 2022-01-27