PMID- 36272571 OWN - NLM STAT- MEDLINE DCOM- 20221216 LR - 20221221 IS - 1874-1754 (Electronic) IS - 0167-5273 (Linking) VI - 371 DP - 2023 Jan 15 TI - Subclinical leaflet thrombosis and antithrombotic therapy post-TAVI: An LRT substudy. PG - 305-311 LID - S0167-5273(22)01645-X [pii] LID - 10.1016/j.ijcard.2022.10.134 [doi] AB - BACKGROUND: Subclinical leaflet thrombosis (SLT) is characterized on computed tomography (CT) imaging as hypoattenuated leaflet thickening (HALT), reduced leaflet motion (RELM), and hypoattenuation affecting motion (HAM). How antithrombotic regimen type impacts SLT remains poorly understood. We evaluated how antithrombotic regimen type impacts SLT in low-risk subjects following transcatheter aortic valve implantation (TAVI). METHODS: This substudy is a post hoc analysis of the LRT 1.0 and 2.0 trials to assess SLT in subjects who underwent CT or transoesophageal echocardiogram (TOE) imaging at 30 days, stratified by antithrombotic regimen received (single antiplatelet therapy [SAPT], dual antiplatelet therapy [DAPT], or oral anticoagulation). We also utilized univariable logistic regression modelling to identify echocardiographic predictors of HALT. RESULTS: Rates of HALT, RELM, and HAM were all significantly lower with oral anticoagulation compared to SAPT or DAPT at 30 days (HALT: 2.6% vs 14.3% vs 17.2%, respectively, with p < 0.001; RELM: 1.8% vs 9.6% vs 13.1%, respectively, with p = 0.004; and HAM: 0.9% vs 8.5% vs 9.8%, respectively, with p = 0.011). Additionally, short-term oral anticoagulation was not associated with higher bleeding rates compared to SAPT or DAPT (0.8% vs. 1.8% vs. 3.6%, p = 0.291). The presence of HALT did not significantly impact echocardiographic haemodynamic parameters at 30 days. CONCLUSION: This is the largest study to date that evaluated the impact of different antithrombotic regimens on SLT in low-risk TAVI patients. Oral anticoagulation was associated with significantly lower rates of SLT at 30 days compared to DAPT or SAPT, and there was no apparent benefit of DAPT over SAPT. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Bhogal, Sukhdeep AU - Bhogal S AD - Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, USA. FAU - Waksman, Ron AU - Waksman R AD - Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, USA. Electronic address: ron.waksman@medstar.net. FAU - Gordon, Paul AU - Gordon P AD - Division of Cardiology, Miriam Hospital, Providence, RI, USA. FAU - Ehsan, Afshin AU - Ehsan A AD - Division of Cardiothoracic Surgery, Lifespan Cardiovascular Institute, Providence, RI, USA. FAU - Wilson, Sean R AU - Wilson SR AD - Department of Cardiology, North Shore University Hospital, Manhasset, NY, USA. FAU - Levitt, Robert AU - Levitt R AD - Department of Cardiology, HCA Virginia Health System, Richmond, VA, USA. FAU - Parikh, Puja AU - Parikh P AD - Department of Medicine, Stony Brook Hospital, Stony Brook, NY, USA. FAU - Bilfinger, Thomas AU - Bilfinger T AD - Department of Surgery, Stony Brook Hospital, Stony Brook, NY, USA. FAU - Hanna, Nicholas AU - Hanna N AD - St. John Heart Institute Cardiovascular Consultants, St. John Health System, Tulsa, OK, USA. FAU - Buchbinder, Maurice AU - Buchbinder M AD - Foundation for Cardiovascular Medicine, Stanford University, Stanford, CA, USA. FAU - Asch, Federico M AU - Asch FM AD - MedStar Health Research Institute, MedStar Washington Hospital Center, Washington, DC, USA. FAU - Weissman, Gaby AU - Weissman G AD - Department of Cardiology, MedStar Washington Hospital Center, Washington, DC, USA. FAU - Ben-Dor, Itsik AU - Ben-Dor I AD - Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, USA. FAU - Shults, Christian C AU - Shults CC AD - Department of Cardiac Surgery, MedStar Washington Hospital Center, Washington, DC, USA. FAU - Ali, Syed AU - Ali S AD - Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, USA. FAU - Shea, Corey AU - Shea C AD - Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, USA. FAU - Zhang, Cheng AU - Zhang C AD - Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, USA. FAU - Garcia-Garcia, Hector M AU - Garcia-Garcia HM AD - Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, USA. FAU - Satler, Lowell F AU - Satler LF AD - Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, USA. FAU - Rogers, Toby AU - Rogers T AD - Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, USA. LA - eng PT - Journal Article DEP - 20221020 PL - Netherlands TA - Int J Cardiol JT - International journal of cardiology JID - 8200291 RN - 0 (Fibrinolytic Agents) RN - 0 (Platelet Aggregation Inhibitors) SB - IM MH - Humans MH - *Transcatheter Aortic Valve Replacement/adverse effects/methods MH - Fibrinolytic Agents/adverse effects MH - Aortic Valve/diagnostic imaging/surgery MH - *Heart Valve Prosthesis/adverse effects MH - *Thrombosis/diagnostic imaging/drug therapy/etiology MH - Treatment Outcome MH - Platelet Aggregation Inhibitors/adverse effects MH - *Aortic Valve Stenosis/diagnostic imaging/drug therapy/surgery OTO - NOTNLM OT - Dual-antiplatelet therapy OT - Hypoattenuated leaflet thickening OT - Oral anticoagulation OT - Single-antiplatelet therapy OT - Subclinical leaflet thrombosis COIS- Declaration of Competing Interest Ron Waksman - Advisory Board: Abbott Vascular, Boston Scientific, Medtronic, Philips IGT, Pi-Cardia Ltd.; Consultant: Abbott Vascular, Biotronik, Boston Scientific, Cordis, Medtronic, Philips IGT, Pi-Cardia Ltd., Swiss Interventional Systems/SIS Medical AG, Transmural Systems Inc., Venous MedTech; Grant Support: AstraZeneca, Biotronik, Boston Scientific, Chiesi, Medtronic, Philips IGT; Speakers Bureau: AstraZeneca; Investor: MedAlliance, Transmural Systems Inc. Puja Parikh - Consultant: Medtronic, Inc. Federico Asch - No personal disclosures. Director of the MedStar Health Academic Echocardiography Core Laboratory which has institutional contracts with Medtronic, Edwards Lifesciences, Abbott, Boston Scientific, Biotronik and LivaNova. Gaby Weissman - No personal disclosures. Director of an academic cardiac computed tomography core lab with institutional contracts with Ancora Heart and LivaNova. Toby Rogers - Proctor and Consultant: Medtronic, Edwards Lifesciences; Advisory Board: Medtronic; Equity interest: Transmural Systems. All other authors have no relationships with industry to disclose. EDAT- 2022/10/23 06:00 MHDA- 2022/12/15 06:00 CRDT- 2022/10/22 19:33 PHST- 2022/07/08 00:00 [received] PHST- 2022/09/23 00:00 [revised] PHST- 2022/10/16 00:00 [accepted] PHST- 2022/10/23 06:00 [pubmed] PHST- 2022/12/15 06:00 [medline] PHST- 2022/10/22 19:33 [entrez] AID - S0167-5273(22)01645-X [pii] AID - 10.1016/j.ijcard.2022.10.134 [doi] PST - ppublish SO - Int J Cardiol. 2023 Jan 15;371:305-311. doi: 10.1016/j.ijcard.2022.10.134. Epub 2022 Oct 20.