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Updated: Jan 4, 2026

Upper-extremity Approach for Secondary Access in Transfemoral Transcatheter Aortic Valve Implantation
Published on: August 8, 2025
Subclinical leaflet thrombosis is associated with impaired reverse remodelling after transcatheter aortic valve
Bálint Szilveszter1, Daniel Oren1, Levente Molnár1
1MTA-SE Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Városmajor Street, 1122 Budapest, Hungary.
Insights
Transcatheter aortic valve implantation (TAVI) significantly reduces left ventricular mass, promoting reverse remodelling. Subclinical leaflet thrombosis may impede these beneficial changes, but reverse remodelling is linked to better long-term outcomes.
Area of Science:
- Cardiology
- Radiology
- Medical Imaging
Background:
- Cardiac CT is crucial for planning and monitoring transcatheter aortic valve implantation (TAVI).
- Limited data exist on reverse remodelling post-TAVI assessed by CT.
- Understanding predictors and prognostic value of LV reverse remodelling is essential.
Purpose of the Study:
- To evaluate predictors of left ventricular (LV) reverse remodelling after TAVI using CT angiography.
- To assess the prognostic value of LV reverse remodelling following TAVI.
Main Methods:
- 117 patients with severe aortic stenosis underwent pre- and post-TAVI CT scans.
- LV mass (LVM) changes were analyzed, defining reverse remodelling as >20% LVM reduction.
- Predictors and prognostic associations were assessed using multivariable analysis.
Main Results:
- TAVI significantly reduced LV mass (LVM) post-procedure (P < 0.001).
- 62.4% of patients showed reverse remodelling.
- Subclinical leaflet thrombosis (SLT), prior myocardial infarction, and increased mean pressure gradient were associated with less reverse remodelling.
Conclusions:
- TAVI effectively induces LV reverse remodelling, measurable by CT.
- SLT may negatively impact LV reverse remodelling.
- LV reverse remodelling after TAVI is associated with improved long-term prognosis.
Aims:
Cardiac CT is increasingly applied for planning and follow-up of transcatheter aortic valve implantation (TAVI). However, there are no data available on reverse remodelling after TAVI assessed by CT. Therefore, we aimed to evaluate the predictors and the prognostic value of left ventricular (LV) reverse remodelling following TAVI using CT angiography.
Methods And Results:
We investigated 117 patients with severe, symptomatic aortic stenosis (AS) who underwent CT scanning before and after TAVI procedure with a mean follow-up time of 2.6 years after TAVI. We found a significant reduction in LV mass (LVM) and LVM indexed to body surface area comparing pre- vs. post-TAVI images: 180.5 ± 53.0 vs. 137.1 ± 44.8 g and 99.7 ± 25.4 vs. 75.4 ± 19.9 g/m2, respectively, both P < 0.001. Subclinical leaflet thrombosis (SLT) was detected in 25.6% (30/117) patients. More than 20% reduction in LVM was defined as reverse remodelling and was detected in 62.4% (73/117) of the patients. SLT, change in mean pressure gradient on echocardiography and prior myocardial infarction was independently associated with LV reverse remodelling after adjusting for age, gender, and traditional risk factors (hypertension, body mass index, diabetes mellitus, and hyperlipidaemia): OR = 0.27, P = 0.022 for SLT and OR = 0.22, P = 0.006 for prior myocardial infarction, OR = 1.51, P = 0.004 for 10 mmHg change in mean pressure gradient. Reverse remodelling was independently associated with favourable outcomes (HR = 0.23; P = 0.019).
Conclusion:
TAVI resulted in a significant LVM regression on CT. The presence of SLT showed an inverse association with LV reverse remodelling and thus it may hinder the beneficial LV structural changes. Reverse remodelling was associated with improved long-term prognosis.
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