PMID- 31904378 OWN - NLM STAT- MEDLINE DCOM- 20210217 LR - 20210502 IS - 1097-6779 (Electronic) IS - 0016-5107 (Print) IS - 0016-5107 (Linking) VI - 91 IP - 5 DP - 2020 May TI - Dose response for argon plasma coagulation in the treatment of weight regain after Roux-en-Y gastric bypass. PG - 1078-1084 LID - S0016-5107(19)32578-7 [pii] LID - 10.1016/j.gie.2019.12.036 [doi] AB - BACKGROUND AND AIMS: Argon plasma coagulation (APC) of gastrojejunal anastomosis (GJA) is effective in treating weight regain after Roux-en-Y gastric bypass (RYGB). This study aims to compare the efficacy of different APC settings for treating weight regain. METHODS: This was a single-center retrospective study of patients who had undergone RYGB and then underwent APC from 2014 to 2018 for weight regain. Patients receiving only low-dose APC (45-55 W) or high-dose APC (70-80 W) were compared. The primary outcome was the difference in percentage total weight loss (% TWL) between the groups at 6 and 12 months after the last treatment. Secondary outcomes were technical success, adverse events (AEs), and predictors of weight loss at 12 months. RESULTS: Two hundred seventeen patients met the inclusion criteria and underwent 411 APC sessions. Of these, 116 (53.5%) patients underwent 267 low-dose APC sessions (2.4 +/- 1.5 sessions/patient) and 101 (46.5%) patients underwent 144 high-dose APC sessions (1.4 +/- 0.7 sessions/patient). Follow-up rates were 82.9% and 75.3% at 6 and 12 months. At 6 months, the low- and high-dose groups experienced 7.3% +/- 6.6% and 8.1% +/- 7.4% TWL, respectively (P = .41). At 12 months, the low- and high-dose groups experienced 5.1% +/- 8.5% and 9.7% +/- 10.0% TWL, respectively (P = .008). Technical success was 100%. The overall AE rate was 8.0%; the most common AE was GJA stenosis (4.6%). The GJA stenosis rate was similar for the low- and high-dose groups (3.0% vs 7.6%, P = .06). High-dose APC remained a significant predictor of greater weight loss at 1 year after controlling for confounders. CONCLUSION: APC is effective at treating weight regain after RYGB, and higher-watt APC was associated with greater weight loss. CI - Copyright (c) 2020 American Society for Gastrointestinal Endoscopy. Published by Elsevier Inc. All rights reserved. FAU - Jirapinyo, Pichamol AU - Jirapinyo P AD - Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts, USA. FAU - de Moura, Diogo T H AU - de Moura DTH AD - Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts, USA; Gastroenterology Department, Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil. FAU - Dong, William Y AU - Dong WY AD - Stony Brook University, Stony Brook, New York, USA. FAU - Farias, Galileu AU - Farias G AD - Gastroenterology Department, Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil. FAU - Thompson, Christopher C AU - Thompson CC AD - Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts, USA. LA - eng GR - P30 DK034854/DK/NIDDK NIH HHS/United States GR - T32 DK007533/DK/NIDDK NIH HHS/United States PT - Journal Article DEP - 20200103 PL - United States TA - Gastrointest Endosc JT - Gastrointestinal endoscopy JID - 0010505 SB - IM CIN - Gastrointest Endosc. 2020 Aug;92(2):455-456. PMID: 32703373 MH - Adult MH - Argon Plasma Coagulation MH - Female MH - *Gastric Bypass MH - Humans MH - Male MH - Middle Aged MH - Obesity, Morbid/surgery MH - Reoperation MH - Retrospective Studies MH - Weight Gain PMC - PMC7183414 MID - NIHMS1548063 COIS- Conflict of Interests: P.J. has received research support from Apollo Endosurgery, Fractyl and GI Dynamics, and has served as a consultant to Endogastric Solutions and GI Dynamics. D.D., W.D. and G.F. have no conflict of interest. C.C.T. has served as a consultant for Boston Scientific, Apollo Endosurgery,, Fractyl, USGI Medical, Medtronic/Covidien, Olympus/Spiration and GI Dynamics, has served as an advisory boards member for USGI Medical and Fractyl, has received research grant and support from USGI Medical, Apollo Endosurgery, Olympus/Spiratio, Aspire Bariatrics and Spatz and GI Dynamics, has served as a general partners for Blueframe Healthcare, and holds stock and royalties for GI Windows. EDAT- 2020/01/07 06:00 MHDA- 2021/02/18 06:00 PMCR- 2021/05/01 CRDT- 2020/01/07 06:00 PHST- 2019/08/17 00:00 [received] PHST- 2019/12/15 00:00 [accepted] PHST- 2020/01/07 06:00 [pubmed] PHST- 2021/02/18 06:00 [medline] PHST- 2020/01/07 06:00 [entrez] PHST- 2021/05/01 00:00 [pmc-release] AID - S0016-5107(19)32578-7 [pii] AID - 10.1016/j.gie.2019.12.036 [doi] PST - ppublish SO - Gastrointest Endosc. 2020 May;91(5):1078-1084. doi: 10.1016/j.gie.2019.12.036. Epub 2020 Jan 3.