Role of gastric per-oral endoscopic myotomy (G-POEM) in post-lung transplant patients: a multicenter experience

Author:

Ichkhanian Yervant1,Hwang Joo Ha2,Ofosu Andrew2,Li Andrew A2,Szvarca Daniel3,Draganov Peter V.4,Yang Dennis4,Alsheik Eva5,Zuchelli Tobias5,Piraka Cyrus5,Mony Shruti6,Khashab Mouen A.6

Affiliation:

1. Henry Ford Health System, Department of Internal Medicine, Detroit, Michigan, United States

2. Divisions of Gastroenterology and Hepatology, Stanford University, School of Medicine, Stanford, California, United States

3. Johns Hopkins Hospital, Department of Internal Medicine, Baltimore, Maryland, United States

4. Division of Gastroenterology and Hepatology, University of Florida, Gainesville, Florida, United States

5. Henry Ford Health System, Division of Gastroenterology and Hepatology, Michigan, United States

6. Johns Hopkins Hospital, Division of Gastroenterology and Hepatology, Baltimore, Maryland, United States

Abstract

Abstract Background and study aims Gastroparesis post-lung transplant (LTx) can lead to increased risk of gastroesophageal reflux (GER) and accelerated graft dysfunction. We aimed to evaluate the efficacy and safety of gastric per-oral endoscopic myotomy (G-POEM), a promising tool in patients with refractory gastroparesis, for managing refractory gastroparesis and GER in post-LTx patients. Patents and methods This was a multicenter retrospective study on post-LTx patients who underwent G-POEM for management of gastroparesis and GER that were refractory to standard medical therapy. The primary outcome was clinical success post-G-POEM. Secondary outcomes included the rate of post-G-POEM objective esophageal pH exam normalization, rate of gastric emptying scintigraphy (GES) normalization, technical success, and adverse events. Results A total of 20 patients (mean age 54.7 ± 14.1 years, Female 50 %) underwent G-POEM at a median time of 13 months (interquartile range 6.5–13.5) post-LTx. All G-POEM procedures were technically successful. Clinical success was achieved in 17 (85 %) patients during a median follow-up time of 8.9 (IQR: 3–17) months post-G-POEM. Overall GCSI and two of its subscales (bloating and postprandial fullness/early satiety) improved significantly following G-POEM. Two patients (10 %) developed post-procedural AEs (delayed bleeding 1, pyloric stenosis 1, both moderate in severity). Post-G-POEM GES improvement was achieved in 12 of 16 patients (75 %). All 20 patients were on proton pump inhibitors pre-G-POEM, as opposed to five post-G-POEM. Post-G-POEM PH study normalization was noted in nine of 10 patients (90 %) who underwent both pre- and post-G-poem pH testing. Conclusions G-POEM is a promising noninvasive therapeutic tool for management of refractory gastroparesis and GER post-LTx.

Publisher

Georg Thieme Verlag KG

Subject

Gastroenterology,Medicine (miscellaneous)

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