Three-dimensional multidetector computed tomography versus conventional 2-dimensional transesophageal echocardiography for annular sizing in transcatheter aortic valve replacement: Influence on postprocedural paravalvular aortic regurgitation
Research output: Contribution to journal › Journal article › Research › peer-review
OBJECTIVES: In transcatheter aortic valve replacement (TAVR), the influence of aortic annular assessment with either multidetector computed tomography (MDCT) or conventional transesophageal echocardiography (TEE) on the incidence of postprocedural paravalvular aortic regurgitation (PAR) was evaluated.
BACKGROUND: PAR remains a major limitation in TAVR. Appropriate selection of transcatheter heart valve (THV) size is crucial to prevent PAR.
METHODS: Outcomes following TAVR with a balloon-expandable THV were compared in two retrospective cohorts identified according to whether THV size selection was based on TEE (study group 1, n = 80) or MDCT (study group 2, n = 58).
RESULTS: The two study groups were comparable with regard to baseline clinical, risk score, and echocardiographic characteristics. The incidence of moderate/severe PAR was lower in study group 2 than in group 1, 8.6% versus 28.8% (P < 0.01). The difference between the THV nominal diameter and MDCT annular diameter was predictive of moderate/severe PAR (AUC 0.84; 95% CI: 0.72-0.92). Neither age, gender, body mass index, annular eccentricity index, aortic valve calcification nor the difference between the THV diameter and the TEE annular diameter predicted postprocedural PAR. Increased THV oversizing relative to the MDCT mean annular diameter was associated with reduced severity of PAR. No difference in perprocedural complications between two study groups was observed.
CONCLUSION: MDCT-based annular sizing in TAVR significantly reduces postprocedural PAR, and THV oversizing appears pivotal in this aspect. Further delineation of the optimal degree of THV oversizing is needed.
Original language | English |
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Journal | Catheterization and Cardiovascular Interventions |
Volume | 82 |
Issue number | 6 |
Pages (from-to) | 977-86 |
Number of pages | 10 |
ISSN | 1522-1946 |
DOIs | |
Publication status | Published - 15 Nov 2013 |
- Aged, Aged, 80 and over, Aortic Valve/diagnostic imaging, Aortic Valve Insufficiency/epidemiology, Aortic Valve Stenosis/diagnostic imaging, Cardiac Catheterization/adverse effects, Denmark/epidemiology, Echocardiography, Transesophageal, Female, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation/adverse effects, Humans, Imaging, Three-Dimensional, Incidence, Male, Multidetector Computed Tomography, Predictive Value of Tests, Prosthesis Design, Radiographic Image Interpretation, Computer-Assisted, Retrospective Studies, Treatment Outcome
Research areas
ID: 242612979