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He A, Wilkins B, Lan NSR, Othman F, Sehly A, Bhat V, Jaltotage B, Dwivedi G, Leipsic J, Ihdayhid AR. Cardiac computed tomography post-transcatheter aortic valve replacement. J Cardiovasc Comput Tomogr 2024:S1934-5925(24)00109-6. [PMID: 38782668 DOI: 10.1016/j.jcct.2024.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/25/2024] [Accepted: 04/25/2024] [Indexed: 05/25/2024]
Abstract
Transcatheter aortic valve replacement (TAVR) is performed to treat aortic stenosis and is increasingly being utilised in the low-to-intermediate-risk population. Currently, attention has shifted towards long-term outcomes, complications and lifelong maintenance of the bioprosthesis. Some patients with TAVR in-situ may develop significant coronary artery disease over time requiring invasive coronary angiography, which may be problematic with the TAVR bioprosthesis in close proximity to the coronary ostia. In addition, younger patients may require a second transcatheter heart valve (THV) to 'replace' their in-situ THV because of gradual structural valve degeneration. Implantation of a second THV carries a risk of coronary obstruction, thereby requiring comprehensive pre-procedural planning. Unlike in the pre-TAVR period, cardiac CT angiography in the post-TAVR period is not well established. However, post-TAVR cardiac CT is being increasingly utilised to evaluate mechanisms for structural valve degeneration and complications, including leaflet thrombosis. Post-TAVR CT is also expected to have a significant role in risk-stratifying and planning future invasive procedures including coronary angiography and valve-in-valve interventions. Overall, there is emerging evidence for post-TAVR CT to be eventually incorporated into long-term TAVR monitoring and lifelong planning.
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Affiliation(s)
- Albert He
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia; Department of Cardiology, Dunedin Public Hospital, Dunedin, New Zealand
| | - Ben Wilkins
- Department of Cardiology, Dunedin Public Hospital, Dunedin, New Zealand
| | - Nick S R Lan
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia; Harry Perkins Institute of Medical Research, Perth, Australia; Medical School, University of Western Australia, Perth, Australia
| | - Farrah Othman
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia
| | - Amro Sehly
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia
| | - Vikas Bhat
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia
| | | | - Girish Dwivedi
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia; Harry Perkins Institute of Medical Research, Perth, Australia; Medical School, University of Western Australia, Perth, Australia
| | - Jonathon Leipsic
- Department of Radiology, St Paul's Hospital, University of British Columbia, Vancouver, Canada
| | - Abdul Rahman Ihdayhid
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia; Harry Perkins Institute of Medical Research, Perth, Australia; Medical School, Curtin University, Perth, Australia.
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Moscarelli M, Sollami G, Lentini E, Prestera R, Pernice V, Milo S, Violante F, Cuffari F, Di Pasquale C, Ferlisi A, La Grutta L, Grassedonio E, Speziale G, Fattouch K. About different localization of hypoattenuated lesions following transcatheter aortic valve replacement. Int J Cardiol 2024; 398:131597. [PMID: 37979790 DOI: 10.1016/j.ijcard.2023.131597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 10/29/2023] [Accepted: 11/14/2023] [Indexed: 11/20/2023]
Abstract
BACKGROUND Subclinical leaflet thrombosis is diagnosed using multidetector computed tomography (MDCT) and is characterised by a meniscal-shaped hypoattenuated lesion of one or more leaflets. Transcatheter aortic self-expandable valves are commonly manufactured with pliable pericardium over a nitinol frame that forms leaflet and extra-leaflet components such as the valve skirt. Little is known about extra-leaflet hypoattenuated lesion localisation, including that at the anatomical sinus level. Thus, the main aim of this study was to describe leaflet and extra-leaflet (anatomic sinus and subvalvular level) hypoattenuated lesions following transcatheter aortic valve replacement with a self-expandable prosthesis. As a secondary aim, we sought to investigate predictors of hypoattenuated lesions. METHODS Fifty patients underwent MDCT at the follow-up. RESULTS At a follow-up of 12 months, hypoattenuated leaflet lesions with mild to severe restricted movement were detected in eight individuals (16%), anatomic sinus lesions were identified in nine patients (18%), with higher prevalence in the non-coronary sinus (16%), and subvalvular lesions with variable extension toward the valve inflow were diagnosed in eight patients (16%). In 4 patients (8%) the anatomic sinus thrombus was 'in overlap' with leaflet thrombus; in 3 patients (6%) was in continuity with subvalvular frame thrombus. Bicuspid valve was the only independent predictor associated with hypoattenuated lesions (adj OR 8.25 (95% CI: 1.38, 49.21), p = 0.02)). CONCLUSIONS This study demonstrated that hypoattenuated lesions could be identified not only at the leaflet but also at the subvalvular and anatomic sinus levels. The clinical relevance of such lesions remains unclear.
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Affiliation(s)
- Marco Moscarelli
- Dept. of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care&Research, Palermo, Italy.
| | - Giulia Sollami
- Dept. of Radiology, Maria Eleonora Hospital, GVM Care&Research, Palermo, Italy
| | - Emanuele Lentini
- Dept. of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care&Research, Palermo, Italy
| | - Rosa Prestera
- Dept. of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care&Research, Palermo, Italy
| | - Vincenzo Pernice
- Dept. of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care&Research, Palermo, Italy
| | - Sabrina Milo
- Dept. of Radiology, Maria Eleonora Hospital, GVM Care&Research, Palermo, Italy
| | - Francesco Violante
- Dept. of Radiology, Maria Eleonora Hospital, GVM Care&Research, Palermo, Italy
| | - Federico Cuffari
- Dept. of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care&Research, Palermo, Italy
| | - Claudia Di Pasquale
- Dept. of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care&Research, Palermo, Italy
| | - Angelo Ferlisi
- Dept. of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care&Research, Palermo, Italy
| | - Ludovico La Grutta
- Section of Radiological Sciences, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Emanuele Grassedonio
- Section of Radiological Sciences, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Giuseppe Speziale
- Dept. of Cardiovascular Surgery, Anthea Hospital, GVM Care&Research, Bari, Italy
| | - Khalil Fattouch
- Dept. of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care&Research, Palermo, Italy; University of Palermo, DICHIRONS, Palermo, Italy
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Moscarelli M, Sollami G, Lentini E, Prestera R, Pernice V, Violante F, Cuffari F, Pasquale CD, La Grutta L, Grassedonio E, Speziale G, Fattouch K. Self-Expandable Prosthesis Valve Adaptation: Non-Uniform Expansion and Stent Frame Decoupling. Am J Cardiol 2023; 207:93-99. [PMID: 37734306 DOI: 10.1016/j.amjcard.2023.08.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/20/2023] [Accepted: 08/20/2023] [Indexed: 09/23/2023]
Abstract
The incidence of non-uniform expansion in the context of the self-expandable transcatheter heart valve (THV) is little investigated, along with stent-frame decoupling, which is a form of stent adaptation, in which the lower part of the THV stent conforms to both the ellipticity of the left ventricle outflow tract and the native annulus while maintaining the higher part of the valve more circular. We analyzed post-implant multi-detector computed tomography scans in 50 patients. Prosthesis non-uniform expansion was assessed by computing the prosthesis eccentricity on 6 prespecified levels: (1) frame inflow, (2) native annulus, (3) leaflet inflow, (4) prosthesis waist, (5) leaflet outflow, and (6) frame outflow. Stent-frame decoupling was assessed by comparing the mean eccentricity on 6 different prosthesis levels. Implantation depth, leaflet expansion and alignment, and residual anatomic sinus area ratios were also calculated. Subclinical leaflet thrombosis was defined as hypoattenuated lesion of a meniscal shape. At a 12-month follow-up, non-uniform expansion was consistently detected at each valvular level. Highest eccentricity was measured at the native annulus level (eccentricity: 0.54 ± 0.12), while the lowest index at the frame outflow level (0.23 ± 0.11). Similar results were observed in the subgroup analyses of sizes 23, 26, 29, and 34. Eccentricity significantly decreased from the annulus level to the prosthesis frame outflow (p <0.001). Notably, the incidence of mild-to-severe subclinical leaflet thrombosis was relevant (16%). In conclusion, prosthesis non-uniform expansion and stent frame decoupling frequently occur after self-expandable THV replacement. The clinical and hemodynamic implications remain uncertain.
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Affiliation(s)
- Marco Moscarelli
- Departments of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care & Research, Palermo, Italy.
| | - Giulia Sollami
- Departments of Radiology, Maria Eleonora Hospital, GVM Care & Research, Palermo, Italy
| | - Emanuele Lentini
- Departments of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care & Research, Palermo, Italy
| | - Rosa Prestera
- Departments of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care & Research, Palermo, Italy
| | - Vincenzo Pernice
- Departments of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care & Research, Palermo, Italy
| | - Francesco Violante
- Departments of Radiology, Maria Eleonora Hospital, GVM Care & Research, Palermo, Italy
| | - Federico Cuffari
- Departments of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care & Research, Palermo, Italy
| | - Claudia Di Pasquale
- Departments of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care & Research, Palermo, Italy
| | - Ludovico La Grutta
- Section of Radiological Sciences, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Emanuele Grassedonio
- Section of Radiological Sciences, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Giuseppe Speziale
- Department of Cardiovascular Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
| | - Khalil Fattouch
- Departments of Cardiovascular Surgery, Maria Eleonora Hospital, GVM Care & Research, Palermo, Italy; Department of Surgical, Oncological and Stomatological Sciences (DICHIRONS), University of Palermo, Palermo, Italy
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Busto L, Veiga C, González-Nóvoa JA, Campanioni S, Juan-Salvadores P, Jiménez Díaz VA, Baz JA, Alba-Castro JL, Kütting M, Íñiguez A. Automatic Assessment of Transcatheter Aortic Valve Implantation Results on Four-Dimensional Computed Tomography Images Using Artificial Intelligence. Bioengineering (Basel) 2023; 10:1206. [PMID: 37892936 PMCID: PMC10604882 DOI: 10.3390/bioengineering10101206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 10/29/2023] Open
Abstract
Transcatheter aortic valve implantation (TAVI) is a procedure to treat severe aortic stenosis. There are several clinical concerns related to potential complications after the procedure, which demand the analysis of computerized tomography (CT) scans after TAVI to assess the implant's result. This work introduces a novel, fully automatic method for the analysis of post-TAVI 4D-CT scans to characterize the prosthesis and its relationship with the patient's anatomy. The method enables measurement extraction, including prosthesis volume, center of mass, cross-sectional area (CSA) along the prosthesis axis, and CSA difference between the aortic root and prosthesis, all the variables studied throughout the cardiac cycle. The method has been implemented and evaluated with a cohort of 13 patients with five different prosthesis models, successfully extracting all the measurements from each patient in an automatic way. For Allegra patients, the mean of the obtained inner volume values ranged from 10,798.20 mm3 to 18,172.35 mm3, and CSA in the maximum diameter plane varied from 396.35 mm2 to 485.34 mm2. The implantation of this new method could provide information of the important clinical value that would contribute to the improvement of TAVI, significantly reducing the time and effort invested by clinicians in the image interpretation process.
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Affiliation(s)
- Laura Busto
- Cardiology Research Group, Galicia Sur Health Research Institute (IIS Galicia Sur), 36312 Vigo, Spain; (L.B.); (J.A.G.-N.); (S.C.); (P.J.-S.)
| | - César Veiga
- Cardiology Research Group, Galicia Sur Health Research Institute (IIS Galicia Sur), 36312 Vigo, Spain; (L.B.); (J.A.G.-N.); (S.C.); (P.J.-S.)
| | - José A. González-Nóvoa
- Cardiology Research Group, Galicia Sur Health Research Institute (IIS Galicia Sur), 36312 Vigo, Spain; (L.B.); (J.A.G.-N.); (S.C.); (P.J.-S.)
| | - Silvia Campanioni
- Cardiology Research Group, Galicia Sur Health Research Institute (IIS Galicia Sur), 36312 Vigo, Spain; (L.B.); (J.A.G.-N.); (S.C.); (P.J.-S.)
| | - Pablo Juan-Salvadores
- Cardiology Research Group, Galicia Sur Health Research Institute (IIS Galicia Sur), 36312 Vigo, Spain; (L.B.); (J.A.G.-N.); (S.C.); (P.J.-S.)
| | - Víctor Alfonso Jiménez Díaz
- Cardiology Department, Complexo Hospitalario Universitario de Vigo (SERGAS), Álvaro Cunqueiro Hospital, 36312 Vigo, Spain; (V.A.J.D.); (J.A.B.); (A.Í.)
| | - José Antonio Baz
- Cardiology Department, Complexo Hospitalario Universitario de Vigo (SERGAS), Álvaro Cunqueiro Hospital, 36312 Vigo, Spain; (V.A.J.D.); (J.A.B.); (A.Í.)
| | - José Luis Alba-Castro
- atlanTTic Research Center for Telecommunication Technologies, University of Vigo, 36310 Vigo, Spain;
| | | | - Andrés Íñiguez
- Cardiology Department, Complexo Hospitalario Universitario de Vigo (SERGAS), Álvaro Cunqueiro Hospital, 36312 Vigo, Spain; (V.A.J.D.); (J.A.B.); (A.Í.)
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5
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Brunner S, Brinkert M, Moccetti F, Loretz L, Fornaro J, Stämpfli SF, Attinger-Toller A, Bossard M, Buhmann R, Cuculi F, Wolfrum M, Toggweiler S. Hypoattenuated Leaflet Thickening After Implantation of the ACURATE neo or the ACURATE neo2 Transcatheter Heart Valve. Am J Cardiol 2023; 200:146-152. [PMID: 37321028 DOI: 10.1016/j.amjcard.2023.05.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/28/2023] [Accepted: 05/21/2023] [Indexed: 06/17/2023]
Abstract
Subclinical leaflet thrombosis, identified as hypoattenuated leaflet thickening (HALT) on cardiac computed tomography scan, has been observed after transcatheter aortic valve replacement (TAVR). However, data on HALT after the implant of the supra-annular ACURATE neo/neo2 prosthesis are limited. This study aimed to determine the prevalence and risk factors for the development of HALT after TAVR with the ACURATE neo/neo2. A total of 50 patients who received the ACURATE neo/neo2 prosthesis were prospectively enrolled. Patients underwent a contrast-enhanced multidetector row cardiac computed tomography scan at before, after, and 6 months after TAVR. At the 6-month follow-up, HALT was detected in 16% (8 of 50 patients). These patients had a lower implant depth of the transcatheter heart valve (8 ± 2 mm vs 5 ± 2 mm, p = 0.001), less calcified native valve leaflets, a better expansion of the frame at the level of the left ventricular outflow tract, and were less often hypertensive. Thrombosis of the sinus of Valsalva occurred in 18% (9/50). There was no difference in the anticoagulation regimen between patients with and without thrombotic findings. In conclusion, HALT was present in 16% of patients at 6 months follow-up, patients presenting with HALT had a lower implant depth of the transcatheter heart valve, and HALT was detected in patients on oral anticoagulation therapy.
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Affiliation(s)
- Stephanie Brunner
- Cardiology Division, Heart Center Lucerne, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Miriam Brinkert
- Department of Cardiology, Kantonsspital Aarau, Aarau, Switzerland
| | - Federico Moccetti
- Cardiology Division, Heart Center Lucerne, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Lucca Loretz
- Cardiology Division, Heart Center Lucerne, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Jürgen Fornaro
- Department of Radiology, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Simon F Stämpfli
- Cardiology Division, Heart Center Lucerne, Luzerner Kantonsspital, Lucerne, Switzerland
| | | | - Matthias Bossard
- Cardiology Division, Heart Center Lucerne, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Ralf Buhmann
- Department of Radiology, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Florim Cuculi
- Cardiology Division, Heart Center Lucerne, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Mathias Wolfrum
- Cardiology Division, Heart Center Lucerne, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Stefan Toggweiler
- Cardiology Division, Heart Center Lucerne, Luzerner Kantonsspital, Lucerne, Switzerland.
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6
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Rashid HN, Rajani R, Leipsic J, Maurovitch-Horvat P, Patterson T, Redwood S, Lee J, Hurrell H, Nicholls SJ, Nasis A, Seneviratne S, Cameron JD, Prendergast B, Gooley RP. Computed tomography imaging for subclinical leaflet thrombosis following surgical and transcatheter aortic valve replacement. J Cardiovasc Comput Tomogr 2023; 17:2-10. [PMID: 36396555 DOI: 10.1016/j.jcct.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/31/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022]
Abstract
Subclinical leaflet thrombosis (LT) may occur following surgical and transcatheter aortic valve replacement. Computed tomography (CT) has become an established imaging modality to diagnose subclinical LT following bioprosthetic aortic valve replacement. Even so, there is a limited (but growing) experience in utilizing CT imaging for this indication. This review emphasizes a systematic approach to acquiring and analysing CT imaging for subclinical LT, highlighting evidence surrounding clinical sequelae of subclinical LT and anti-thrombotic implications following diagnosis.
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Affiliation(s)
- Hashrul N Rashid
- MonashHeart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Melbourne, Australia; Department of Cardiology, Guy's & St. Thomas' Hospital, London, United Kingdom.
| | - Ronak Rajani
- Department of Cardiology, Guy's & St. Thomas' Hospital, London, United Kingdom.
| | - Jonathon Leipsic
- Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada.
| | - Pál Maurovitch-Horvat
- MTA-SE Cardiovascular Imaging Research Group, Medical Imaging Centre, Semmelweis University, Budapest, Hungary.
| | - Tiffany Patterson
- Department of Cardiology, Guy's & St. Thomas' Hospital, London, United Kingdom; School of Cardiovascular Medicine & Sciences, King's College London, London, United Kingdom.
| | - Simon Redwood
- Department of Cardiology, Guy's & St. Thomas' Hospital, London, United Kingdom; School of Cardiovascular Medicine & Sciences, King's College London, London, United Kingdom.
| | - Jack Lee
- Biomedical Engineering Department, King's College London, London, United Kingdom.
| | - Harriet Hurrell
- Department of Cardiology, Guy's & St. Thomas' Hospital, London, United Kingdom; School of Cardiovascular Medicine & Sciences, King's College London, London, United Kingdom.
| | - Stephen J Nicholls
- MonashHeart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Melbourne, Australia.
| | - Arthur Nasis
- MonashHeart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Melbourne, Australia.
| | - Sujith Seneviratne
- MonashHeart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Melbourne, Australia.
| | - James D Cameron
- MonashHeart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Melbourne, Australia.
| | - Bernard Prendergast
- Department of Cardiology, Guy's & St. Thomas' Hospital, London, United Kingdom.
| | - Robert P Gooley
- MonashHeart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Melbourne, Australia.
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7
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Rashid HN, Michail M, Ramnarain J, Nasis A, Nicholls SJ, Cameron JD, Gooley RP. The impact of hypo-attenuated leaflet thickening on haemodynamic valve deterioration following transcatheter aortic valve replacement. J Cardiovasc Comput Tomogr 2021; 16:168-173. [PMID: 34852974 DOI: 10.1016/j.jcct.2021.11.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/10/2021] [Accepted: 11/24/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Hypo-attenuated leaflet thickening (HALT) may occur following transcatheter aortic valve replacement (TAVR), however, it remains unclear if HALT is a predictor of haemodynamic valve deterioration (HVD). AIM To determine the impact of HALT on the occurrence of HVD. METHODS We prospectively evaluated 186 patients for the presence of HALT at a median of 6 weeks following TAVR (Interquartile-range [IQR] 4-12 weeks). HALT depth and area were measured. HVD encompassed any of the following: mean gradient ≥20 mmHg with an increase in gradient ≥10 mmHg from baseline, Doppler velocity index reduction ≥0.1 or new moderate-to-severe valvular regurgitation. Routine echocardiograms at discharge, one month and annually, were assessed by echo-cardiologists that were blinded to the HALT status. RESULTS LT prevalence was 17.7% (33/186). HVD was present in 8.6% (16/186) at a median follow-up of 2 years (IQR 1-3); two required valve re-intervention and five required anticoagulation. HALT was the only independent predictor of HVD on multivariate analysis (OR 33.3, 95%CI 7.4-125). Patients with HALT were more likely to develop HVD, require repeat valve intervention and have higher trans-valvular gradients at up to 3-year follow-up. Patients with HALT had a median cumulative thickness of 2.9 mm (IQR 1.9-4.7) and area of 64.2 mm2 (IQR 40.9-91.6). Thresholds for HALT in predicting HVD were a cumulative depth of 2.4 mm (Specificity 94.1%, Sensitivity 75.0%, AUC = 0.87) and cumulative area of 28 mm2 (Specificity 92.2%, Sensitivity 81.3%, AUC = 0.86). CONCLUSION HALT is an independent predictor of HVD, which exhibits specific depth and area thresholds to predict HVD. CT following TAVR may determine patients at risk of HVD.
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Affiliation(s)
- Hashrul N Rashid
- Monash Heart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Australia.
| | - Michael Michail
- Sussex Cardiac Centre, University Hospital Sussex NHS Trust, Brighton, United Kingdom
| | - Jaineel Ramnarain
- Monash Heart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Australia
| | - Arthur Nasis
- Monash Heart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Australia
| | - Stephen J Nicholls
- Monash Heart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Australia
| | - James D Cameron
- Monash Heart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Australia
| | - Robert P Gooley
- Monash Heart, Monash Health and Monash Cardiovascular Research Centre, Monash University, Australia
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