scholarly journals TCT-140 Impact of Left Ventricular Mass Regression on Long-Term Clinical Outcomes After Transcatheter Aortic Valve Replacement: An Analysis of the PARTNER 1 and 2 Trials and Registries

2019 ◽  
Vol 74 (13) ◽  
pp. B139
Author(s):  
Katherine Chau ◽  
Pamela Douglas ◽  
Philippe Pibarot ◽  
Rebecca Hahn ◽  
Omar Khalique ◽  
...  
2020 ◽  
Vol 75 (19) ◽  
pp. 2446-2458 ◽  
Author(s):  
Katherine H. Chau ◽  
Pamela S. Douglas ◽  
Philippe Pibarot ◽  
Rebecca T. Hahn ◽  
Omar K. Khalique ◽  
...  

Author(s):  
Euihong Ko ◽  
Do-Yoon Kang ◽  
Jung-Min Ahn ◽  
Tae Oh Kim ◽  
Ju Hyeon Kim ◽  
...  

Abstract Aims This study aimed to assess the impact of valvular/subvalvular calcium burden on procedural and long-term outcomes in patients undergoing transcatheter aortic valve replacement (TAVR) for severe aortic stenosis (AS). Methods and results In this prospective observational cohort study, we included patients with AS undergoing TAVR between March 2010 and December 2019. Calcium burden at baseline was quantified using multidetector computed tomography and the patients were classified into tertile groups according to the amount of calcium. Procedural outcomes [paravalvular leakage (PVL) or permanent pacemaker insertion (PPI)] and 12-month clinical outcomes (composite of death, stroke, or rehospitalization, and all-cause mortality) were assessed. A total of 676 patients (age, 79.8 ± 5.4 years) were analysed. The 30-day rates of moderate or severe PVL (P-for-trend = 0.03) and PPI (P-for-trend = 0.002) proportionally increased with the tertile levels of calcium volume. The 12-month rate of primary composite outcomes was 34.2% in low-tertile, 23.9% in middle-tertile, and 25.8% in high-tertile groups (log-rank P = 0.02). After multivariable adjustment, the risk for primary composite outcomes at 12 months was not significantly different between the tertile groups of calcium volume [reference = low-tertile; middle-tertile, hazard ratio (HR) 0.81; 95% confidence interval (CI) 0.54–1.22; P = 0.31; high-tertile, HR 0.93; 95% CI 0.56–1.57; P = 0.80]. A similar pattern was observed for all-cause mortality. Conclusion The rates of PVL and PPI proportionally increased according to the levels of valvular/subvalvular calcium volume, while the adjusted risks for composite outcomes and mortality at 12 months were not significantly different.


2021 ◽  
Author(s):  
Vincent Michiels ◽  
Daniele Andreini ◽  
Edoardo Conte ◽  
Kaoru Tanaka ◽  
Dries Belsack ◽  
...  

Abstract Background: the long-term variations of fractional flow reserve derived from coronary computed tomography (FFR CT ) after surgical (SAVR) or transcatheter (TAVR) aortic valve replacement in patients with severe aortic valve stenosis (AS) have not been investigated. Methods and Results: a total of 25 patients with isolated, severe AS underwent coronary computed tomography with 3-vessel FFR CT analysis (Heartflow Inc. - Redwood City, California, USA) and measurement of total coronary volume (V), left ventricular mass (M) and their ratio (V/M) before and 6 months after SAVR or TAVR. A significant increase in V/M due to a decrease in left ventricular mass 6 months after intervention was observed, whereas total coronary volume did not change (coronary volume pre: 2924,5 ± 867,9 mm 3 , coronary volume post: 2844,2 ± 792,8 mm 3 , P =0.158; LV mass pre: 151.7 ± 40.7 g, LV mass post: 127.3 ± 34.7 g, P <0.001; V/M pre: 19.5 ± 4.1 mm 3 /g, V/M post: 22.7 ± 4.28 mm 3 /g, P =0.002). FFR CT (expressed as area under the virtual pullback curve) remained constant. Conclusion: this proof-of-concept study showed that FFR CT was not subject to the confounding effect of left ventricular mass regression after SAVR or TAVR. Despite significant left ventricular remodeling at 6 months after AS treatment, FFR CT values remained constant. This means FFR CT can probably be used as a reliable test in AS patients but further studies are needed comparing the performance of the different invasive and non-invasive coronary physiological indices in this patient cohort.


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