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Shashank S, Balireddi LD, Inban P, Al‐ezzi SMS, Reddy NJ, Alalousi Y, Prajjwal P, John J, Shajeri MAA, Almadhoun MKIKH, Sulaimanov M, Amiri B, Marsool MDM, Amir Hussin O. Subclinical leaflet thrombosis and anticoagulation strategy following trans-catheter aortic valve replacement: A systematic review. Health Sci Rep 2024; 7:e2200. [PMID: 38933424 PMCID: PMC11199189 DOI: 10.1002/hsr2.2200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 05/30/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
Objective Subclinical leaflet thrombosis (SLT) develops in 15% of patients undergoing trans-catheter aortic valve replacement (TAVR). TAVR is a procedure in which a faulty aortic valve is replaced with a mechanical one. An aortic valve replacement can be done with open-heart surgery; this is called surgical aortic valve replacement (SAVR). A significant problem is defining the best course of treatment for asymptomatic individuals with SLT post-TAVR, including the use of oral anticoagulation (OAC) in it. Study design Systematic review. Method The most pertinent published research (original papers and reviews) in the scientific literature were searched for and critically assessed using the online, internationally indexed databases PubMed, Medline, and Cochrane Reviews. Keywords like "Transcatheter valve replacement" and "Subclinical leaflet thrombosis" were used to search the papers. Selected studies were critically assessed for inclusion based on predefined criteria. Results The review examined the prevalence and characteristics of SLT after TAVR. To note, the incidence of SLT is seen to be higher in TAVR compared SAVR. Dual antiplatelet therapy, which is utilized in antithrombotic regimens post-TAVR, can possibly hasten SLT progression which could result in the impaired mobility of leaflets and the worsening of pressure gradients. Conclusion The use of dual antiplatelet drugs in routine antithrombotic therapy tends to accelerate initial subclinical leaflet thrombosis after TAVI, which results in a developing restriction of leaflet mobility and an increase in pressure differences.
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Affiliation(s)
| | | | | | | | | | - Yarub Alalousi
- St Joseph University Medical Center, PatersonBrooklynNew YorkUSA
| | | | - Jobby John
- Dr. Somervell Memorial CSI Medical College and Hospital, NeyyāttinkaraThiruvananthapuramIndia
| | | | | | | | - Bita Amiri
- Cardiovascular Research CenterTabriz University of Medical SciencesTabrizIran
| | | | - Omniat Amir Hussin
- Internal MedicineAl Manhal University Academy of ScienceKhartoum NorthSudan
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2
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Urzua Fresno CM, Ocazionez D, Groves DW, Vargas D. Computed Tomography of Transcatheter Aortic Valve Replacement-Related Complications. Semin Roentgenol 2024; 59:112-120. [PMID: 38388090 DOI: 10.1053/j.ro.2023.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/22/2023] [Accepted: 11/25/2023] [Indexed: 02/24/2024]
Affiliation(s)
| | - Daniel Ocazionez
- Department of Diagnostic and Interventional Imaging, The University of Texas Health Science Center at Houston-McGovern Medical School, Houston, TX
| | - Daniel W Groves
- Departments of Medicine and Radiology, University of Colorado, Aurora, CO
| | - Daniel Vargas
- Department of Radiology, University of Colorado, Aurora, CO.
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3
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Jang MH, Ahn JM, Kang DY, Kim KW, Koo HJ, Yang DH, Jung SC, Kim B, Wong YTA, Lam CCS, Yin WH, Wei J, Lee YT, Kao HL, Lin MS, Ko TY, Kim WJ, Kang SH, Ko E, Lee SA, Kim DH, Kim H, Choi Y, Lee J, Park SJ, Park DW. Impact of leaflet thrombosis on valve haemodynamic status after transcatheter aortic valve replacement. Heart 2023; 110:140-147. [PMID: 37586823 DOI: 10.1136/heartjnl-2023-322946] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 08/03/2023] [Indexed: 08/18/2023] Open
Abstract
OBJECTIVES The effect of subclinical leaflet thrombosis, characterised by hypoattenuated leaflet thickening (HALT), on the valve haemodynamic function and durability of the bioprosthetic valve, is not yet determined. We determined the impact of HALT on valve haemodynamics after transcatheter aortic valve replacement (TAVR) and the predictors of haemodynamic structural valve deterioration (SVD). METHODS The Anticoagulation vs Dual Antiplatelet Therapy for Prevention of Leaflet Thrombosis and Cerebral Embolization after Transcatheter Aortic Valve Replacement(ADAPT-TAVR) trial is a multicenter, randomised trial that compared edoxaban and dual antiplatelet therapy in patients who had undergone successful TAVR. The presence of HALT was evaluated by four-dimensional CT at 6 months and serial echocardiography performed at baseline, immediately post-TAVR and after 6 months. SVD was defined as at least one of the following: (1) mean transprosthetic gradient ≥20 mm Hg, (2) change in the mean gradient ≥10 mm Hg from baseline, or (3) new or increase in intraprosthetic aortic regurgitation of at least ≥1 grade, resulting in moderate or greater regurgitation. RESULTS At 6 months, HALT was found in 30 of 211 (14.2%) patients. The presence of HALT did not significantly affect aortic valve mean gradients (with vs without HALT; 14.0±4.8 mm Hg vs 13.7±5.5 mm Hg; p=0.74) at 6 months. SVD was reported in 30 of 206 patients (14.6%) at 6-month follow-up echocardiography. Older age (OR: 1.138; 95% CI: 1.019 to 1.293; p=0.033), use of aortic valve size ≤23 mm (OR: 6.254; 95% CI: 2.230 to 20.569; p=0.001) and mean post-TAVR pressure gradient (OR: 1.233; 95% CI: 1.123 to 1.371; p<0.001) were independent predictors of haemodynamic SVD; however, the presence of HALT was not identified as a predictor of SVD. CONCLUSIONS In patients who had undergone successful TAVR, aortic valve haemodynamic status was not influenced by the presence of HALT. Although HALT was not a predictor of haemodynamic SVD at 6 months, it warrants further longer-term follow-up to evaluate the effect on long-term valve durability. TRIAL REGISTRATION NUMBER NCT03284827 (https://www. CLINICALTRIALS gov).
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Affiliation(s)
| | | | | | - Kyung Won Kim
- Asan Image Metrics, Clinical Trial Center, Asan Institue for Life Sciences, Asan Medical Center, Seoul, South Korea
| | | | | | | | - Byungjun Kim
- Radiology, Korea University Anam Hospital, Seoul, Korea
| | | | | | - Wei-Hsian Yin
- Cardiology, Heart Center, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Jeng Wei
- Cardiology, Heart Center, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Yung-Tsai Lee
- Cardiology, Heart Center, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Hsien-Li Kao
- Cardiology, National Taiwan University Hospital, Taipei, Taiwan
| | - Mao-Shin Lin
- Cardiology, National Taiwan University Hospital, Taipei, Taiwan
| | - Tsung-Yu Ko
- Cardiology, Hsin-Chu Branch, National Taiwan University Hospital, Hsin-Chu, Taiwan
| | - Won-Jang Kim
- Cardiology, CHA Ilsan Medical Center, Goyang-si, Gyeonggi-do, Korea
| | - Se Hun Kang
- Cardiology, CHA Bundang Medical Center, Seongnam, Gyeonggi-do, Korea
| | - Euihong Ko
- Cardiology, Kokura Memorial Hospital, Kitakyushu, Fukuoka, Japan
| | | | - Dae-Hee Kim
- Cardiology, Asan Medical Center, Seoul, Korea
| | - Hoyun Kim
- Cardiology, Asan Medical Center, Seoul, Korea
| | | | - Jinho Lee
- Cardiology, Asan Medical Center, Seoul, Korea
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4
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Haramati A, Latib A, Lazarus MS. Post-procedural structural heart CT imaging: TAVR, TMVR, and other interventions. Clin Imaging 2023; 101:86-95. [PMID: 37311399 DOI: 10.1016/j.clinimag.2023.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/16/2023] [Accepted: 05/25/2023] [Indexed: 06/15/2023]
Abstract
Transcatheter valve replacement has experienced substantial growth in the past decade and this technique can now be used for any of the four heart valves. Transcatheter aortic valve replacement (TAVR) has overtaken surgical aortic valve replacement. Transcatheter mitral valve replacement (TMVR) is often performed in pre-existing valves or after prior valve repair, although numerous devices are undergoing trials for replacement of native valves. Transcatheter tricuspid valve replacement (TTVR) is similarly under active development. Lastly, transcatheter pulmonic valve replacement (TPVR) is most often used for revision treatment of congenital heart disease. Given the growth of these techniques, radiologists are increasingly called upon to interpret post-procedural imaging for these patients, particularly with CT. These cases will often arise unexpectedly and require detailed knowledge of potential post-procedural appearances. We review both normal and abnormal post-procedural findings on CT. Certain complications-device migration or embolization, paravalvular leak, or leaflet thrombosis-can occur after replacement of any valve. Other complications are specific to each type of valve, including coronary artery occlusion after TAVR, coronary artery compression after TPVR, or left ventricular outflow tract obstruction after TMVR. Finally, we review access-related complications, which are of particular concern due to the requirement of large-bore catheters for these procedures.
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Affiliation(s)
- Adina Haramati
- Department of Radiology, New York-Presbyterian/Weill Cornell Medicine, 525 East 68(th) Street, New York, NY 10065, United States of America
| | - Azeem Latib
- Division of Cardiology, Montefiore Medical Center, Albert Einstein College of Medicine, 111 East 210(th) Street, Bronx, NY 10467, United States of America
| | - Matthew S Lazarus
- Department of Radiology, Montefiore Medical Center, Albert Einstein College of Medicine, 111 East 210(th) Street, Bronx, NY 10467, United States of America.
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Cercenelli L, Gironi C, Bortolani B, Marcelli E. First Ex Vivo Animal Study of a Biological Heart Valve Prosthesis Sensorized with Intravalvular Impedance. SENSORS (BASEL, SWITZERLAND) 2023; 23:3829. [PMID: 37112167 PMCID: PMC10141024 DOI: 10.3390/s23083829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 06/19/2023]
Abstract
IntraValvular Impedance (IVI) sensing is an innovative concept for monitoring heart valve prostheses after implant. We recently demonstrated IVI sensing feasible in vitro for biological heart valves (BHVs). In this study, for the first time, we investigate ex vivo the IVI sensing applied to a BHV when it is surrounded by biological tissue, similar to a real implant condition. A commercial model of BHV was sensorized with three miniaturized electrodes embedded in the commissures of the valve leaflets and connected to an external impedance measurement unit. To perform ex vivo animal tests, the sensorized BHV was implanted in the aortic position of an explanted porcine heart, which was connected to a cardiac BioSimulator platform. The IVI signal was recorded in different dynamic cardiac conditions reproduced with the BioSimulator, varying the cardiac cycle rate and the stroke volume. For each condition, the maximum percent variation in the IVI signal was evaluated and compared. The IVI signal was also processed to calculate its first derivative (dIVI/dt), which should reflect the rate of the valve leaflets opening/closing. The results demonstrated that the IVI signal is well detectable when the sensorized BHV is surrounded by biological tissue, maintaining the similar increasing/decreasing trend that was found during in vitro experiments. The signal can also be informative on the rate of valve opening/closing, as indicated by the changes in dIVI/dt in different dynamic cardiac conditions.
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Effect of Native Aortic Leaflet Geometry Modification on Transcatheter Aortic Valve Neo-sinus and Aortic Sinus Flow: An In-vitro Study. Cardiovasc Eng Technol 2022; 14:182-193. [PMID: 36357649 DOI: 10.1007/s13239-022-00647-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/28/2022] [Indexed: 11/12/2022]
Abstract
PURPOSE Leaflet thrombosis is a potentially fatal complication after transcatheter aortic valve replacement (TAVR). Blood flow stagnation in the neo-sinus and aortic sinuses are associated with increased thrombus severity. Native aortic leaflet modification may be a potential strategy to improve the neo-sinus and aortic sinus fluid dynamics. However, limited data exist on the effect of leaflet geometry modification on the flow within the neo-sinus and aortic sinus regions. We evaluate the effect of aortic leaflet modification on the neo-sinus and aortic sinus flow stagnation after simulated TAVR. METHODS Particle image velocimetry measurements were performed under nominal (5 LPM) and low (2.5 LPM) cardiac output conditions for an intact leaflet (control) case, and 3 modified leaflet geometries. Aortic leaflet geometry modification via leaflet splay was simulated with increasing splay geometry (leaflet splay distance: 5 mm-narrow, 10 mm-medium, and 20 mm-wide). RESULTS Leaflet geometry modification influenced flow features throughout the cardiac cycle, at both cardiac outputs, and allowed for flow communication between the neo-sinus and aortic sinus regions compared to the control. In the aortic sinus, flow stagnation reduced by over 64% at 5LPM, and over 36% at 2.5LPM for all simulated modified leaflet geometries compared to the control. However, only the medium and wide splay geometries enabled a reduction in neo-sinus flow stagnation compared to the control case. CONCLUSIONS These findings suggest that aortic leaflet geometry modification (of at least 10 mm leaflet splay distance) may reduce flow stasis and potentially decrease valve thrombosis risk.
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7
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Gironi C, Cercenelli L, Bortolani B, Emiliani N, Tartarini L, Marcelli E. Innovative IntraValvular Impedance Sensing Applied to Biological Heart Valve Prostheses: Design and In Vitro Evaluation. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22218297. [PMID: 36365997 PMCID: PMC9656368 DOI: 10.3390/s22218297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 05/14/2023]
Abstract
Subclinical valve thrombosis in heart valve prostheses is characterized by the progressive reduction in leaflet motion detectable with advanced imaging diagnostics. However, without routine imaging surveillance, this subclinical thrombosis may be underdiagnosed. We recently proposed the novel concept of a sensorized heart valve prosthesis based on electrical impedance measurement (IntraValvular Impedance, IVI) using miniaturized electrodes embedded in the valve structure to generate a local electric field that is altered by the cyclic movement of the leaflets. In this study, we investigated the feasibility of the novel IVI-sensing concept applied to biological heart valves (BHVs). Three proof-of-concept prototypes of sensorized BHVs were assembled with different size, geometry and positioning of the electrodes to identify the optimal IVI-measurement configuration. Each prototype was tested in vitro on a hydrodynamic heart valve assessment platform. IVI signal was closely related to the electrodes' positioning in the valve structure and showed greater sensitivity in the prototype with small electrodes embedded in the valve commissures. The novel concept of IVI sensing is feasible on BHVs and has great potential for monitoring the valve condition after implant, allowing for early detection of subclinical valve thrombosis and timely selection of an appropriate anticoagulation therapy.
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8
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Pournazari P, Chang SM, Little SH, Goel S, Faza NN. Prosthetic Aortic Valve Thrombosis. US CARDIOLOGY REVIEW 2022. [DOI: 10.15420/usc.2021.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Prosthetic valve thrombosis is the second leading cause of prosthetic valve deterioration and is being more readily diagnosed with the use of echocardiography and multidetector cardiac CT. Presentation of valve thrombosis can be acute or subacute and any change in clinical status of a patient with a prosthetic valve should raise a suspicion of prosthetic valve thrombosis. Diagnosis entails detailed clinical examination and comprehensive imaging. The choice of therapeutic options includes anticoagulation, fibrinolytic therapy, or valve replacement. Antiplatelet and anticoagulation therapy remain the mainstay of thrombosis prevention in patients with a prosthetic valve and a personalized approach is required to optimize prosthetic valve function and minimize the risk of bleeding.
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Affiliation(s)
- Payam Pournazari
- Department of Cardiology, Houston Methodist Debakey Heart & Vascular Center, Houston, TX
| | - Su Min Chang
- Department of Cardiology, Houston Methodist Debakey Heart & Vascular Center, Houston, TX
| | - Stephen H Little
- Department of Cardiology, Houston Methodist Debakey Heart & Vascular Center, Houston, TX
| | - Sachin Goel
- Department of Cardiology, Houston Methodist Debakey Heart & Vascular Center, Houston, TX
| | - Nadeen N Faza
- Department of Cardiology, Houston Methodist Debakey Heart & Vascular Center, Houston, TX
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Esmailie F, Razavi A, Yeats B, Sivakumar SK, Chen H, Samaee M, Shah IA, Veneziani A, Yadav P, Thourani VH, Dasi LP. Biomechanics of Transcatheter Aortic Valve Replacement Complications and Computational Predictive Modeling. STRUCTURAL HEART : THE JOURNAL OF THE HEART TEAM 2022; 6:100032. [PMID: 37273734 PMCID: PMC10236878 DOI: 10.1016/j.shj.2022.100032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/09/2021] [Accepted: 11/03/2021] [Indexed: 06/06/2023]
Abstract
Transcatheter aortic valve replacement (TAVR) is a rapidly growing field enabling replacement of diseased aortic valves without the need for open heart surgery. However, due to the nature of the procedure and nonremoval of the diseased tissue, there are rates of complications ranging from tissue rupture and coronary obstruction to paravalvular leak, valve thrombosis, and permanent pacemaker implantation. In recent years, computational modeling has shown a great deal of promise in its capabilities to understand the biomechanical implications of TAVR as well as help preoperatively predict risks inherent to device-patient-specific anatomy biomechanical interaction. This includes intricate replication of stent and leaflet designs and tested and validated simulated deployments with structural and fluid mechanical simulations. This review outlines current biomechanical understanding of device-related complications from TAVR and related predictive strategies using computational modeling. An outlook on future modeling strategies highlighting reduced order modeling which could significantly reduce the high time and cost that are required for computational prediction of TAVR outcomes is presented in this review paper. A summary of current commercial/in-development software is presented in the final section.
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Affiliation(s)
- Fateme Esmailie
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology/Emory University School of Medicine, Atlanta, Georgia, USA
| | - Atefeh Razavi
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology/Emory University School of Medicine, Atlanta, Georgia, USA
| | - Breandan Yeats
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology/Emory University School of Medicine, Atlanta, Georgia, USA
| | - Sri Krishna Sivakumar
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology/Emory University School of Medicine, Atlanta, Georgia, USA
| | - Huang Chen
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology/Emory University School of Medicine, Atlanta, Georgia, USA
| | - Milad Samaee
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology/Emory University School of Medicine, Atlanta, Georgia, USA
| | - Imran A. Shah
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology/Emory University School of Medicine, Atlanta, Georgia, USA
| | - Alessandro Veneziani
- Department of Mathematics, Department of Computer Science, Emory University, Atlanta, Georgia, USA
| | - Pradeep Yadav
- Department of Cardiology, Marcus Valve Center, Piedmont Heart Institute, Atlanta, Georgia, USA
| | - Vinod H. Thourani
- Department of Cardiovascular Surgery, Marcus Valve Center, Piedmont Heart Institute, Atlanta, Georgia, USA
| | - Lakshmi Prasad Dasi
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology/Emory University School of Medicine, Atlanta, Georgia, USA
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Late-onset cerebral embolism after transcatheter aortic valve implantation under direct oral anticoagulant therapy. J Stroke Cerebrovasc Dis 2022; 31:106525. [PMID: 35490468 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/25/2022] [Accepted: 04/17/2022] [Indexed: 11/22/2022] Open
Abstract
Ischemic stroke is a devastating complication of transcatheter aortic valve implantation (TAVI), mainly occurring in the early postoperative period. The risk of a transplanted heart valve (THV) thrombosis causing stroke may be underestimated in the late postoperative phase. We describe the case of a 92-year-old woman with delayed valve thrombosis causing stroke after TAVI, who developed recurrent strokes eight months after TAVI for severe aortic valve stenosis. Transesophageal echocardiography and cardiac computed tomography revealed a string-like thrombus attached to the implanted valve. With the administration of warfarin, the clot regressed, and the patient was discharged home without recurrence of stroke. Our case demonstrates the importance of THV thrombosis as an embolic source of stroke even in the late postoperative phase and provides a discussion on optimal antithrombotic therapy after TAVI.
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11
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Vogl BJ, El Shaer A, Crestanello JA, Alkhouli M, Hatoum H. Flow dynamics in the sinus and downstream of third and fourth generation balloon expandable transcatheter aortic valves. J Mech Behav Biomed Mater 2022; 127:105092. [DOI: 10.1016/j.jmbbm.2022.105092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/27/2021] [Accepted: 01/12/2022] [Indexed: 10/19/2022]
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Ncho B, Siefert A, Sadri V, Ortner J, Yoganathan AP. Effect of Leaflet Type and Leaflet-Stent Attachment Height on Transcatheter Aortic Valve Leaflet Thrombosis Potential. J Med Device 2021. [DOI: 10.1115/1.4052902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Abstract
Transcatheter aortic valve replacement devices vary in leaflet material and in the height for which leaflets attach to the stented valve frame. Combinations of these features can influence leaflet dynamics, neo-sinus geometries, and fluid dynamics, thereby reducing or exacerbating the potential for blood flow stasis and leaflet thrombosis. To investigate these interconnected relationships, this study evaluated the effects of transcatheter valve leaflet type (porcine vs. bovine pericardium) and the leaflet-stent attachment height (low, mid, and high) on flow stasis and potential for leaflet thrombosis. Transcatheter valve models were manufactured and tested within an aortic simulator under pulsatile left heart hemodynamic conditions. Transvalvular hemodynamics, leaflet kinematics, and flow structures were evaluated by direct measurement, high-speed imaging, and two differing techniques of particle image velocimetry. Transcatheter valves with porcine pericardial leaflets were observed to be less stiff, exhibit a lesser resistance to flow, were associated with reduced regions of neo-sinus flow stasis, and superior sinus washout times. More elevated attachments of the leaflets were associated with less neo-sinus flow stasis. These initial results and observations suggest combinations of leaflet type and stent attachment height may reduce transcatheter aortic valve flow stasis and the potential for leaflet thrombosis.
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Affiliation(s)
- Beatrice Ncho
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Andrew Siefert
- The Wallace H. Coulter School of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Vahid Sadri
- The Wallace H. Coulter School of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Jillian Ortner
- The Wallace H. Coulter School of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Ajit P. Yoganathan
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA; The Wallace H. Coulter School of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
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Martín M, Cuevas J, Cigarrán H, Calvo J, Morís C. Transcatheter Aortic Valve Implantation and Subclinical and Clinical Leaflet Thrombosis: Multimodality Imaging for Diagnosis and Risk Stratification. Eur Cardiol 2021; 16:e35. [PMID: 34721669 PMCID: PMC8546909 DOI: 10.15420/ecr.2021.09] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 07/09/2021] [Indexed: 12/31/2022] Open
Abstract
In recent years, the phenomenon of subclinical leaflet thrombosis (SLT) in patients who have undergone transcatheter aortic valve implantation has become increasingly relevant. Hypo-attenuating leaflet thickening and hypo-attenuation affecting motion diagnosed by CT are the hallmarks of SLT, and their incidence varies depending on the intensity of screening. Whether these phenomena are a surrogate for leaflet thrombosis reducing valve durability and increasing the risk of stroke is still a matter of debate. Uncertainty remains over the optimal antithrombotic therapy after TAVI and the best treatment strategy is still not confirmed. Ongoing and future trials will provide more evidence about the best strategy for the prevention and treatment of SLT.
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Affiliation(s)
- María Martín
- Cardiology Department, University Hospital of Asturias Oviedo, Asturias, Spain
| | - Javier Cuevas
- Cardiology Department, University Hospital of Asturias Oviedo, Asturias, Spain
| | - Helena Cigarrán
- Radiology Department, University Hospital of Asturias Oviedo, Asturias, Spain
| | - Juan Calvo
- Radiology Department, University Hospital of Asturias Oviedo, Asturias, Spain
| | - César Morís
- Cardiology Department, University Hospital of Asturias Oviedo, Asturias, Spain
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14
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Case BC, Khan JM, Rogers T. Early Leaflet Thickening, Durability and Bioprosthetic Valve Failure in TAVR. Interv Cardiol Clin 2021; 10:531-539. [PMID: 34593115 DOI: 10.1016/j.iccl.2021.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
All bioprosthetic valves, both surgical and transcatheter, have a finite lifespan before their leaflets inevitably degenerate, leading to stenosis or regurgitation. As younger, low-risk patients receive a transcatheter aortic valve, it is expected that they will most likely outlive their bioprosthetic valve. The heterogeneity of studies regarding surgical valve durability makes the interpretation of the data challenging. Leaflet thickening is seen in transcatheter heart valves but currently there is no evidence that it leads to premature valve deterioration or clinical events. Standardized definitions of structural valve deterioration should allow for comparisons between future clinical trials to assess the durability of different transcatheter heart valves.
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Affiliation(s)
- Brian C Case
- Section of Interventional Cardiology, MedStar Washington Hospital Center, 110 Irving Street NW, Washington, DC 20010, USA
| | - Jaffar M Khan
- Cardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892, USA.
| | - Toby Rogers
- Section of Interventional Cardiology, MedStar Washington Hospital Center, 110 Irving Street NW, Washington, DC 20010, USA; Cardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892, USA
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Mouyen T, Manigold T, Collet JP, Durand E, Barbey C, Lhermusier T, Tchetche D, Chollet T, Mulliez A, Motreff P, Combaret N, Souteyrand G. Transcatheter aortic valve thrombosis: Data from a French multicenter cohort analysis. Catheter Cardiovasc Interv 2021; 98:352-362. [PMID: 33615701 DOI: 10.1002/ccd.29555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 02/02/2021] [Indexed: 01/11/2023]
Abstract
OBJECTIVES To evaluate the effectiveness of anticoagulant therapies in patients with clinical transcatheter heart valve (THV) thrombosis, to describe complications, and to assess their risk profile was the objectives. BACKGROUND Little research has been conducted on clinical THV thrombosis. METHODS Patients with clinical THV thrombosis were identified based on greater than 50% increased transvalvular gradient on transthoracic echocardiogram confirmed by 4-dimensional computed tomography, transesophageal echocardiogram, or regression with anticoagulant therapy. A cohort free from thrombosis for more than 1,100 days postprocedure was used for comparison. RESULTS Fifty-four patients with clinical THV thrombosis were identified. Most subjects (98.1%) received anticoagulant therapy which was effective (≥50% reduction in transvalvular gradient or return to postprocedure value) in 96%. The rate of serious hemodynamic or embolic complications in the thrombosis population was 31.5%. A multivariate analysis of subjects with and without thrombosis indicated a significantly increased risk of thrombosis from preexisting thrombocytopenia (odds ratio [OR] 9.96), absence of predilatation (OR = 5.67), renal insufficiency (OR = 4.84), and >10 mmHg mean transvalvular gradient postprocedure (OR = 3.36). No recurrence of thrombosis was identified during on average 685 days follow-up. CONCLUSIONS These data, from one of the largest cohorts with clinical THV thrombosis confirm anticoagulants appear effective. The rate of serious associated complications was high. The findings underline the importance of recognizing risk factors for thrombosis.
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Affiliation(s)
- Thomas Mouyen
- Department of Cardiology, CHU Clermont-Ferrand, CNRS UMR 6602, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Thibaut Manigold
- CHU Guillaume et René Laennec, Institut du Thorax, Service de Cardiologie, Nantes, France
| | | | - Eric Durand
- CHU Rouen-Charles-Nicolle, Service de Cardiologie, Rouen, France
| | | | - Thibault Lhermusier
- CHU de Toulouse, Département de Cardiologie, Inserm U1048, Université de Toulouse 3, Toulouse, France
| | - Didier Tchetche
- Clinique Pasteur, Groupe Cardiovasculaire Interventionnel, Toulouse, France
| | - Thomas Chollet
- Clinique Pasteur, Groupe Cardiovasculaire Interventionnel, Toulouse, France
| | - Aurélien Mulliez
- Direction de la Recherche Clinique et de l'Innovation, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Pascal Motreff
- Department of Cardiology, CHU Clermont-Ferrand, CNRS UMR 6602, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Nicolas Combaret
- Department of Cardiology, CHU Clermont-Ferrand, CNRS UMR 6602, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Géraud Souteyrand
- Department of Cardiology, CHU Clermont-Ferrand, CNRS UMR 6602, Université Clermont Auvergne, Clermont-Ferrand, France
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16
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Mahalwar G, Lao N, Babar A, Kapadia SR, Kalra A, Cutler D, Wierup P. Transcatheter Heart Valve Thrombosis in a Patient With Polycythemia Vera Despite Apixaban Therapy for Atrial Fibrillation. JACC Case Rep 2021; 3:269-272. [PMID: 34317515 PMCID: PMC8310972 DOI: 10.1016/j.jaccas.2020.12.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 11/25/2020] [Accepted: 12/02/2020] [Indexed: 11/22/2022]
Abstract
We present a case of transcatheter heart valve thrombosis in a 76-year-old man with paroxysmal atrial fibrillation on therapeutic anticoagulation with apixaban and polycythemia vera. The incidence of transcatheter heart valve thrombosis in patients with atrial fibrillation and on adequate anticoagulation is not well reported. (Level of Difficulty: Intermediate.).
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Affiliation(s)
- Gauranga Mahalwar
- Department of Internal Medicine, Cleveland Clinic Akron General, Akron, Ohio, USA
| | - Nicole Lao
- Department of Internal Medicine, Cleveland Clinic Akron General, Akron, Ohio, USA
| | - Arslan Babar
- Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Samir R. Kapadia
- Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ankur Kalra
- Department of Internal Medicine, Cleveland Clinic Akron General, Akron, Ohio, USA
- Heart, Vascular and Thoracic Department, Cleveland Clinic Akron General, Akron, Ohio, USA
| | - David Cutler
- Heart, Vascular and Thoracic Department, Cleveland Clinic Akron General, Akron, Ohio, USA
| | - Per Wierup
- Department of Thoracic and Cardiovascular Surgery, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio, USA
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17
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The Role of Cardiac Computed Tomography in Valve Disease and Valve Intervention Planning. CURRENT TREATMENT OPTIONS IN CARDIOVASCULAR MEDICINE 2021. [DOI: 10.1007/s11936-020-00879-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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In-Vitro Assessment of the Effects of Transcatheter Aortic Valve Leaflet Design on Neo-Sinus Geometry and Flow. Ann Biomed Eng 2020; 49:1046-1057. [PMID: 33098058 DOI: 10.1007/s10439-020-02664-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 10/16/2020] [Indexed: 10/23/2022]
Abstract
Transcatheter aortic valve (TAV) leaflet thrombosis is a clinical risk with potentially fatal consequences. Studies have identified neo-sinus flow stasis as a cause of leaflet thrombosis. Flow stasis is influenced by the TAV leaflets, which affect the local fluid dynamics in the aortic sinus and neo-sinus. This study evaluated the effects of TAV leaflet features on the neo-sinus flow as a measure of leaflet thrombosis risk. Five TAVs of varied leaflet length and insertion height were tested in a simulator. Hydrodynamics and leaflet kinematics through en-phase imaging were quantified. Velocity fields were assessed using high-speed particle image velocimetry. Regions of flow stasis and particle residence times (PRTs) were quantified. TAVs with shorter leaflet length exhibited larger orifice areas and lower transvalvular pressure gradients. Shorter leaflet length and increased leaflet insertion TAVs additionally exhibited lower neo-sinus PRTs (0.44 ± 0.21 vs 2.83 ± 0.48 cycles, p < 0.05) and higher neo-sinus peak velocities (0.15 ± 0.009 vs 0.07 ± 0.005 m/s, p < 0.05) than TAVs with longer leaflet length and lower leaflet insertion. The average neo-sinus volume positively correlated with PRT(r = 0.810, p < 0.001), and extent of flow stasis (r = 0.682, p < 0.05). These results suggest that a small neo-sinus volume may reduce flow stagnation and particle residence, potentially reducing the risk of leaflet thrombosis. We propose that leaflet design features might be proactively controlled in the design of future transcatheter aortic valves.
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19
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Brown RA, Reid AB, Turaga M, Huang AL, Maggiore PL, Sellers SL, Kiritchkov L, Tarazi SC, Blanke P, Leipsic JA. Subclinical Leaflet Thrombosis Post Transcatheter Aortic Valve Replacement – An Update for 2020. STRUCTURAL HEART 2020. [DOI: 10.1080/24748706.2020.1805534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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20
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Yang F, He H, Xu L, Jin L, Guo G, Wang Y. Inorganic-polymerization crosslinked tissue-siloxane hybrid as potential biomaterial for bioprosthetic heart valves. J Biomed Mater Res A 2020; 109:754-765. [PMID: 32681740 DOI: 10.1002/jbm.a.37061] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 06/21/2020] [Accepted: 07/01/2020] [Indexed: 12/17/2022]
Abstract
Bioprosthetic heart valve (BHV) replacement is increasingly used for treating valve-related diseases worldwide but the current commercially used BHVs treated with glutaraldehyde (Glut) often failed within 12-15 years due to degradation, thrombosis, inferior biocompatibility, and calcification. Herein, 3-glycidyloxypropyl trimethoxysilane (GPTMS) was used to crosslink porcine pericardium (PP) at the concentration (vol/vol) of 0.25%, 1%, 2%, and 4% and their performance for potential application in BHVs was evaluated. The crosslinking mechanism mainly involved the ring-opening of epoxide by amine attack and silanol poly-condensation. The stability of collagen in higher concentration (1%, 2%, and 4%) GPTMS crosslinked PPs (GPTMS-PPs) was clearly increased. GPTMS-PPs showed no cytotoxicity and supported the growth of endothelial cells while Glut-PP did not. GPTMS-PPs were less prothrombotic than Glut-PP. GPTMS-PP crosslinked at 1% concentration showed comparable mechanical properties to Glut-PP while had better anti-tearing performance. The subcutaneous implantation in rat for 30 days showed that GPTMS crosslinking was able to effectively inhibit the calcification of BHV.
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Affiliation(s)
- Fan Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Haiyang He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Liangpeng Xu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Linhe Jin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Gaoyang Guo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
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21
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Xiong TY, Liao YB, Li YJ, Chen F, Li X, Wang ZJ, Wang X, Ou Y, Li Q, Wei JF, Peng Y, Meng W, Feng Y, Chen M. Effect of concomitant aortic regurgitation on early hypo-attenuated leaflet thickening after transcatheter aortic valve replacement in patients with symptomatic severe aortic stenosis. Catheter Cardiovasc Interv 2020; 96:1491-1497. [PMID: 32400115 DOI: 10.1002/ccd.28903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/12/2020] [Accepted: 03/30/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVE We hypothesize that different degree of pre-existing aortic regurgitation (AR) may affect the presence of hypo-attenuated leaflet thickening (HALT) after transcatheter aortic valve replacement (TAVR). BACKGROUND The mechanism of the presence of HALT post-TAVR is not fully understood. METHODS We retrospectively evaluated the post-procedural multi-slice computed tomography (MSCT) before discharge for evidence of HALT. Patients were grouped according to the degree of pre-existing AR. Baseline, native anatomy and procedure details were compared, then multivariate regression was performed. RESULTS MSCT analyzed was performed at a median of 6 days post-TAVR in 179 patients. HALT was detected in 10.6% of patients. After adjusting for variables that were significantly different between groups, pre-existing ≥ moderate AR was protective to the risk of HALT (OR 0.15, 95% CI 0.03-0.84, p = .03). Stratifying for factors that might explain the impact of pre-existing AR on HALT, patients with a small Sinus of Valsalva, non-eccentric remodeling and receiving a large bioprosthesis experienced a sevenfold higher risk for HALT (OR 7.16, 95% CI 2.05-25.08, p = .002). CONCLUSIONS Patients underwent TAVR with pre-existing ≥ moderate AR appeared to experience a lower incidence of early HALT compared to those patients with less than moderate AR, which may be explained by a larger Sinus of Valsalva and a higher proportion of LV eccentric remodeling.
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Affiliation(s)
- Tian-Yuan Xiong
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Yan-Biao Liao
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Yi-Jian Li
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Fei Chen
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Xi Li
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Zi-Jie Wang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Xi Wang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Yuanweixiang Ou
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Qiao Li
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Jia-Fu Wei
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Yong Peng
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Wei Meng
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, PR China
| | - Yuan Feng
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Mao Chen
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, PR China
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22
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Bioprosthetic Aortic Valve Leaflet Thickening in the Evolut Low Risk Sub-Study. J Am Coll Cardiol 2020; 75:2430-2442. [DOI: 10.1016/j.jacc.2020.03.022] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/14/2020] [Accepted: 03/15/2020] [Indexed: 11/19/2022]
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23
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Themudo R, Kastengren M, Bacsovics Brolin E, Cederlund K, Svensson A, Dalén M. Leaflet thickening and stent geometry in sutureless bioprosthetic aortic valves. Heart Vessels 2020; 35:868-875. [PMID: 31950251 PMCID: PMC7198640 DOI: 10.1007/s00380-020-01553-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 01/10/2020] [Indexed: 11/09/2022]
Abstract
Underexpansion of transcatheter heart valves and the surgically implanted Perceval sutureless aortic valve bioprosthesis has been suggested as an underlying mechanism for hypo-attenuated leaflet thickening (HALT). This was a single-center prospective observational study that included 47 patients who underwent surgical aortic valve replacement with the Perceval sutureless bioprosthesis (LivaNova, London, United Kingdom) from 2012 to 2016 and were studied by four-dimensional cardiac computed tomography (CT). The association between overall and regional expansion and the prevalence of HALT was analyzed. In total 46 patients were included in the analysis. HALT was found in 39.1% of patients and the mean overall prosthesis expansion was 75.5 ± 5.2% (range 64.6–84.8%). Overall expansion did not differ between patients with HALT compared with patients without HALT (mean overall expansion 74.0 ± 5.2% vs. 76.5 ± 5.0%, P = 0.11). The prevalence of HALT was lower in patients with overall expansion > 80% compared to patients with expansion < 80% expansion though not significantly (20% vs. 44.4%, P = 0.16). None or trivial regional underexpansion was found in 94.7% of coronary cusps. There was no significant association between regional underexpansion and the prevalence of HALT (mean coronary cusp angle 120 ± 8° vs. 119 ± 10°, P = 0.53). The prevalence of HALT and overall underexpansion was high in the Perceval sutureless bioprosthetic valve. Overall underexpansion was not associated with HALT. Whether severe overall underexpansion increases the risk for HALT requires further study. Regional underexpansion was uncommon in the Perceval sutureless bioprosthetic valve and not associated with HALT. Clinical trial registration Unique identifier: NCT03753126 (http://www.clinicaltrials.gov).
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24
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Valvo R, Criscione E, Reddavid C, Barbanti M. Early detection of transcatheter heart valve dysfunction. Expert Rev Cardiovasc Ther 2019; 17:863-872. [PMID: 31829050 DOI: 10.1080/14779072.2019.1703673] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Introduction: Transcatheter aortic valve implantation therapy is spreading rapidly, representing the standard of care in inoperable and high-risk patients, and a valid alternative in intermediate- and low-risk patients with severe symptomatic aortic stenosis. In this subset, the development and validation of noninvasive, quantitative, in vivo imaging modality, to monitor possible valve dysfunction is mandatory, in order to plan timely therapeutic interventions before the onset of symptoms.Areas covered: The implantation of transcatheter heart valves (THV) is increasing rapidly. As a consequence, THV dysfunction will become a major cause of cardiovascular morbidity after TAVI. Emergency repeat aortic valve replacement surgery is associated with a high rate of mortality compared with elective repeat surgery. In this context, early detection of THV dysfunction is therefore highly desirable. The review aims to examine the different diagnostic method to early detect THV dysfunction.Expert opinion: Most promising innovations in the diagnosis of early detection of THV dysfunction are evaluated, and the future outlook is explored. Waiting for upcoming evidence about the utility of CT, CMR, and PET on early detection of THV dysfunction, tailoring echocardiogram follow-up based on patients' characteristics is the desirable approach.
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Affiliation(s)
- Roberto Valvo
- A.O.U. Policlinico-Vittorio Emanuele, University of Catania, Catania, Italy
| | - Enrico Criscione
- A.O.U. Policlinico-Vittorio Emanuele, University of Catania, Catania, Italy
| | - Claudia Reddavid
- A.O.U. Policlinico-Vittorio Emanuele, University of Catania, Catania, Italy
| | - Marco Barbanti
- A.O.U. Policlinico-Vittorio Emanuele, University of Catania, Catania, Italy
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25
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Kossar AP, George I, Gordon R, Ferrari G. Bacterial infiltration and bioprosthetic valve failure: Emerging diagnostics for emerging therapies. J Thorac Cardiovasc Surg 2019; 159:1279-1282. [PMID: 31669022 PMCID: PMC7085958 DOI: 10.1016/j.jtcvs.2019.07.149] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/09/2019] [Accepted: 07/11/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Alexander P Kossar
- Division of Cardiothoracic Surgery, Department of Surgery, NewYork-Presbyterian Hospital/Columbia University Irving Medical Center, New York, NY
| | - Isaac George
- Division of Cardiothoracic Surgery, Department of Surgery, NewYork-Presbyterian Hospital/Columbia University Irving Medical Center, New York, NY
| | - Rachel Gordon
- Division of Infectious Diseases, Department of Medicine, NewYork-Presbyterian Hospital/Columbia University Irving Medical Center, New York, NY
| | - Giovanni Ferrari
- Division of Cardiothoracic Surgery, Department of Surgery, NewYork-Presbyterian Hospital/Columbia University Irving Medical Center, New York, NY.
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26
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Costa G, Criscione E, Todaro D, Tamburino C, Barbanti M. Long-term Transcatheter Aortic Valve Durability. ACTA ACUST UNITED AC 2019; 14:62-69. [PMID: 31178931 PMCID: PMC6545973 DOI: 10.15420/icr.2019.4.2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 04/29/2019] [Indexed: 12/26/2022]
Abstract
Transcatheter aortic valve implantation (TAVI) has become the standard of care for high-risk and inoperable surgical patients and a valid alternative to surgery for low- and intermediate-risk patients with severe, symptomatic aortic stenosis. It is increasingly being used for younger, lower-risk patients, so it is important to ensure the durability for long-term transcatheter aortic valves. The lack of standard definitions of structural valve degeneration (SVD) had made comparison among studies on prosthetic valve durability problematic. The 2017 standardised definitions of SVD by the European Association of Percutaneous Cardiovascular Intervention), the European Society of Cardiology and the European Association for Cardio-Thoracic Surgery, and the 2018 definitions by the Valve In Valve International Data group, has generated an increased uniformity in evaluations. This article examines the potential mechanisms and rates of SVD of transcatheter bioprostheses and the role of redo TAVI as a treatment option.
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Affiliation(s)
- Giuliano Costa
- Vittorio Emanuele Hospital, University of Catania Catania, Italy
| | - Enrico Criscione
- Vittorio Emanuele Hospital, University of Catania Catania, Italy
| | - Denise Todaro
- Vittorio Emanuele Hospital, University of Catania Catania, Italy
| | | | - Marco Barbanti
- Vittorio Emanuele Hospital, University of Catania Catania, Italy
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27
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Nagabandi AK, Panchal H, Srivastava R, Beohar N. When Prosthetic Valves Compete for Space: A Case of Transcatheter Aortic Valve Embolization Due to Prosthetic Mitral Valve. Cureus 2019; 11:e4299. [PMID: 32190431 PMCID: PMC7055012 DOI: 10.7759/cureus.4299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 03/22/2019] [Indexed: 11/05/2022] Open
Abstract
Transcatheter aortic valve replacement (TAVR) is now the preferred choice of treatment for severe symptomatic aortic stenosis (AS) patients who are at intermediate to high risk for surgery. Rare complications like valve embolization have been described and we report a case with unique cause for such complication. A 79-year-old female presented with new onset dyspnea on exertion for evaluation and work up to the outside hospital and was found to have severe AS and referred to us for TAVR evaluation. She had a history of coronary artery bypass grafts surgery and bioprosthetic mitral valve replacement (MVR) 10 years ago. Preoperative transesophageal echocardiogram (TEE) revealed normally functioning bioprosthetic mitral valve and severe AS with peak/mean gradients of 67/44 mm Hg. She underwent transfemoral TAVR using a 26-mm Edwards Sapien S3 TAVR valve. During the slow deployment of the TAVR valve while rapid pacing, the valve appeared to move a little. Shortly after the removal of the delivery system out of the valve, the TAVR valve embolized to ascending aorta. It was carefully withdrawn into the aortic arch past the great vessels with an inflated balloon aortic valvuloplasty (BAV) catheter. Then, BAV was performed x 2 to plan for TAVR with a second valve, but the BAV balloon water-melon seeded repeatedly. We concluded that in this case, the rigid struts of bioprosthetic mitral valve encroaching on LVOT resulted in TAVR valve embolization and a decision was made to abort further attempts at TAVR valve implantation. This patient later under surgical aortic valve replacement (SAVR) and is clinically doing well at six months of clinical follow-up.
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Affiliation(s)
- Arun K Nagabandi
- Interventional Cardiology, Mount Sinai Medical Center, Miami Beach, USA
| | - Hemang Panchal
- Interventional Cardiology, Mount Sinai Medical Center, Miami Beach, USA
| | - Rohit Srivastava
- Interventional Cardiology, University of California San Francisco - Fresno Medical Education Center, Fresno, USA
| | - Nirat Beohar
- Interventional Cardiology, Mount Sinai Medical Center, Miami Beach, USA
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