PMID- 32030553 OWN - NLM STAT- MEDLINE DCOM- 20210625 LR - 20210625 IS - 1432-2218 (Electronic) IS - 0930-2794 (Linking) VI - 35 IP - 1 DP - 2021 Jan TI - Effect of antiplatelet agent number, types, and pre-endoscopic management on post-polypectomy bleeding: validation of endoscopy guidelines. PG - 317-325 LID - 10.1007/s00464-020-07402-0 [doi] AB - BACKGROUND: It remains unclear whether type of antiplatelet (AP) therapy, AP combination therapy, and AP continuing or switching strategy affect the risk of post-polypectomy bleeding (PPB). In this study, we sought to elucidate this risk. METHODS: We analyzed 1050 patients who underwent colonoscopic polypectomy: 525 AP users and 525 controls matched for age, sex, comorbidities, concomitant non-steroidal anti-inflammatory drugs use, and polyp characteristics who did not receive antithrombotics. PPB risk was evaluated by AP number, type, and continuing or switching strategies during the peri-endoscopic period. RESULTS: In multivariate analysis, bleeding risk increased significantly as the number of AP agents used increased (monotherapy, adjusted odds ratio [aOR], 3.7; dual antiplatelet therapy (DAPT), 4.6; triple antiplatelet therapy (TAPT), 11.1) compared with controls. With monotherapy, significantly increased PPB risk was found for aspirin (aOR 4.3), thienopyridine (aOR 6.3), and cilostazol (aOR 5.9), but not for eicosapentaenoic acid or other APs (beraprost, limaprost, sarpogrelate, dilazep, or dipyridamole). With DAPT, significantly increased PPB risk was found for combination aspirin plus cilostazol, but not aspirin plus other APs. Bleeding rates for continuing monotherapy were 4.3% for aspirin and 0% for thienopyridine, cilostazol, and other APs, respectively. CONCLUSIONS: Analysis of this large polypectomy dataset showed that the use of low-dose aspirin, thienopyridine, or cilostazol and a combination of these is associated with increased PPB risk. Although PPB risk was high with DAPT or TAPT, PPB rate in any antiplatelet monotherapy even with a continuing strategy was low at < 5%. FAU - Watanabe, Kazuhiro AU - Watanabe K AD - Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan. AD - Course of Advanced and Specialized Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan. FAU - Nagata, Naoyoshi AU - Nagata N AD - Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan. nnagata_ncgm@yahoo.co.jp. AD - Department of Gastroenterological Endoscopy, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinju-ku, Tokyo, 162-0023, Japan. nnagata_ncgm@yahoo.co.jp. FAU - Yanagisawa, Naohiro AU - Yanagisawa N AD - Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan. FAU - Shimbo, Takuro AU - Shimbo T AD - Ohta Nishinouchi Hospital, Fukushima, Japan. FAU - Okubo, Hidetaka AU - Okubo H AD - Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan. FAU - Imbe, Koh AU - Imbe K AD - Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan. FAU - Yokoi, Chizu AU - Yokoi C AD - Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan. FAU - Yanase, Mikio AU - Yanase M AD - Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan. FAU - Kimura, Akio AU - Kimura A AD - Course of Advanced and Specialized Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan. AD - Department of Emergency and Critical Medicine, National Center for Global Health and Medicine, Tokyo, Japan. FAU - Akiyama, Junichi AU - Akiyama J AD - Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan. FAU - Uemura, Naomi AU - Uemura N AD - Department of Gastroenterology and Hepatology, Kohnodai Hospital, National Center for Global Health and Medicine, Chiba, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200206 PL - Germany TA - Surg Endosc JT - Surgical endoscopy JID - 8806653 RN - 0 (Platelet Aggregation Inhibitors) SB - IM MH - Aged MH - Colonic Polyps/*complications/*surgery MH - Endoscopy/*methods MH - Female MH - Hemorrhage/*drug therapy MH - Humans MH - Male MH - Platelet Aggregation Inhibitors/pharmacology/*therapeutic use MH - Retrospective Studies OTO - NOTNLM OT - ASGE guidelines OT - Delayed bleeding OT - Dual antiplatelet therapy (DAPT) OT - ESGE guidelines OT - JGES guidelines OT - acetylsalicylic acid EDAT- 2020/02/08 06:00 MHDA- 2021/06/29 06:00 CRDT- 2020/02/08 06:00 PHST- 2019/01/15 00:00 [received] PHST- 2020/01/30 00:00 [accepted] PHST- 2020/02/08 06:00 [pubmed] PHST- 2021/06/29 06:00 [medline] PHST- 2020/02/08 06:00 [entrez] AID - 10.1007/s00464-020-07402-0 [pii] AID - 10.1007/s00464-020-07402-0 [doi] PST - ppublish SO - Surg Endosc. 2021 Jan;35(1):317-325. doi: 10.1007/s00464-020-07402-0. Epub 2020 Feb 6.