Assessment of TRanscathetEr and Surgical Aortic BiOprosthetic Valve Thrombosis and Its TrEatment With Anticoagulation
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Warfarin.
- Who it may be relevant to
- Registry conditions: Prosthetic Valve Thrombosis. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Assessment of TRanscathetEr and Surgical Aortic BiOprosthetic Valve Dysfunction With Multimodality Imaging and Its TrEatment With Anticoagulation
Overview
This is a prospective study designed to evaluate the structural and functional integrity of transcatheter or surgical bioprosthetic valves with multimodality imaging. The study further aims to confirm resolution of the early bioprosthetic valve thrombotic changes with anticoagulation.
Detailed description
Patients with a history of bioprosthetic valve replacement undergo cardiac contrast CT imaging and transthoracic echocardiography to evaluate structural and functional integrity of the aortic valves. The imaging studies will be performed at least 48-hours after bioprosthetic valve replacement. Patients with prosthetic valve abnormalities suggestive of thrombus will be administered anticoagulation therapy, followed by repeat contrast CT of the chest and transthoracic imaging. Repeat imaging following 3 months of anticoagulation therapy is performed to evaluate the response to anticoagulation therapy. I
Interventions
- Drug Warfarin
Patients with prosthetic valve abnormalities suggestive of thrombus will be administered anticoagulation therapy with Vitamin K antagonists (Warfarin) for 3 months with goal INR 2-3, followed by repeat contrast CT of the chest and transthoracic imaging. Repeat imaging following 3 months of anticoagulation therapy is performed to evaluate the response to anticoagulation therapy.
Primary outcome measures
- Frequency of patients with structural/functional abnormalities of bioprosthetic valves [Time frame: 3 months]
Eligibility criteria
Inclusion criteria
- Presence of transcatheter or surgical bioprosthetic aortic valve implanted at least 48 hours prior to enrollment
- Age 18 years or older
- Ability to provide informed consent and follow-up with protocol procedures.
Exclusion criteria
- Renal insufficiency (creatinine > 1.5 mg/dL)
- Known allergy to iodinated contrast agents
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- N/A
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
United States · 1 center
- Cedars-Sinai Medical Center — Los Angeles
Publications
- Makkar RR, Fontana G, Jilaihawi H, Chakravarty T, Kofoed KF, De Backer O, Asch FM, Ruiz CE, Olsen NT, Trento A, Friedman J, Berman D, Cheng W, Kashif M, Jelnin V, Kliger CA, Guo H, Pichard AD, Weissman NJ, Kapadia S, Manasse E, Bhatt DL, Leon MB, Sondergaard L. Possible Subclinical Leaflet Thrombosis in Bioprosthetic Aortic Valves. N Engl J Med. 2015 Nov 19;373(21):2015-24. doi: 10.1056/NEJMoa1509 PMID 26436963
- Chakravarty T, Sondergaard L, Friedman J, De Backer O, Berman D, Kofoed KF, Jilaihawi H, Shiota T, Abramowitz Y, Jorgensen TH, Rami T, Israr S, Fontana G, de Knegt M, Fuchs A, Lyden P, Trento A, Bhatt DL, Leon MB, Makkar RR; RESOLVE; SAVORY Investigators. Subclinical leaflet thrombosis in surgical and transcatheter bioprosthetic aortic valves: an observational study. Lancet. 2017 Jun 17;389(10087) PMID 28330690
- Nagasaka T, Patel V, Suruga K, Guo Y, Koren O, Shechter A, Friedman M, Patel D, Chakravarty T, Cheng W, Gupta A, Ishii H, Jilaihawi H, Nakamura M, Makkar RR. Prognostic implications and predictive factors of subclinical leaflet thrombosis following valve-in-valve transcatheter aortic valve implantation. EuroIntervention. 2025 May 5;21(9):e482-e492. doi: 10.4244/EIJ-D-24-00711. PMID 40325986
- Nagasaka T, Patel V, Shechter A, Suruga K, Koren O, Chakravarty T, Cheng W, Ishii H, Jilaihawi H, Nakamura M, Makkar RR. Impact of Balloon-Expandable TAVR Valve Deformation and Calcium Distribution on Outcomes in Bicuspid Aortic Valve. JACC Cardiovasc Interv. 2024 Sep 9;17(17):2023-2037. doi: 10.1016/j.jcin.2024.07.018. PMID 39260960
- Raschpichler M, Flint N, Yoon SH, Kaewkes D, Patel C, Singh C, Patel V, Kashif M, Borger MA, Chakravarty T, Makkar R. Commissural Alignment After Balloon-Expandable Transcatheter Aortic Valve Replacement Is Associated With Improved Hemodynamic Outcomes. JACC Cardiovasc Interv. 2022 Jun 13;15(11):1126-1136. doi: 10.1016/j.jcin.2022.04.006. PMID 35680192
- Ochiai T, Oakley L, Sekhon N, Komatsu I, Flint N, Kaewkes D, Yoon SH, Raschpichler M, Patel V, Tiwana R, Enta Y, Mahani S, Kim Y, Stegic J, Chakravarty T, Nakamura M, Cheng W, Makkar R. Risk of Coronary Obstruction Due to Sinus Sequestration in Redo Transcatheter Aortic Valve Replacement. JACC Cardiovasc Interv. 2020 Nov 23;13(22):2617-2627. doi: 10.1016/j.jcin.2020.09.022. PMID 33213747
- Ochiai T, Chakravarty T, Yoon SH, Kaewkes D, Flint N, Patel V, Mahani S, Tiwana R, Sekhon N, Nakamura M, Cheng W, Makkar R. Coronary Access After TAVR. JACC Cardiovasc Interv. 2020 Mar 23;13(6):693-705. doi: 10.1016/j.jcin.2020.01.216. PMID 32192689
Identifiers
NCT: NCT02318342 · CSMC-37587