scholarly journals Long-term outcomes with balloon-expandable and self-expandable prostheses in patients undergoing transfemoral transcatheter aortic valve implantation for severe aortic stenosis

2019 ◽  
Vol 290 ◽  
pp. 45-51 ◽  
Author(s):  
René Vollenbroich ◽  
Peter Wenaweser ◽  
Annina Macht ◽  
Stefan Stortecky ◽  
Fabien Praz ◽  
...  
2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
B Lattuca ◽  
A Meilhac ◽  
C Robert ◽  
D Vandenbergh ◽  
F Manna ◽  
...  

Abstract Background With the growing indications of transcatheter aortic valve implantation (TAVI) worldwide and among lower risk patients, valve durability has become a crucial issue. Purpose To assess mid and long-term evolution of different generations of percutaneous balloon-expandable prostheses, predictive factors of valve deterioration and its correlation with long-term mortality. Methods All consecutive patients undergoing TAVI for severe aortic stenosis with balloon-expandable prosthesis between 2009 and 2014 and with a minimum follow-up of one-year were included in this monocentric prospective study. All echocardiograms were reviewed by two independent experts. Clinical events were defined according to the Valve Academic Research Consortium criteria. Valve deterioration was defined according to the 2017 EAPCI-ESC-EACTS international consensus statement at the longest follow-up. Results A total of 160 patients were included with a median follow-up of 3.4 years [1.5–4.9] and a maximum of 8 years. Patients were mostly implanted with the first generation Sapien XT valve (n=138, 86.2%). Median age was 85 [79–86] years, with 42.5% of women and a median logistic Euro-SCORE of 14.2% [10.6–23.2]. Immediately after TAVI, mean aortic gradient decreased dramatically from 51±12mmHg to 9±2.6mmHg (p<0.0001) and remained overall stable with a mean gradient of 12±1mmHg at 8 years. Valve deterioration occurred in 5.6% (n=9) of patients, of which 3.7% (n=6) with severe deterioration. Moderate or severe peri-prosthetic aortic regurgitation was observed in 2.5% (n=4) of patients. The eight-year survival rate was 12.9%. During follow-up, hospitalization for acute heart failure was required for 23.7% (n=38) of patients, a myocardial infarction or a stroke occurred respectively among 1.9% (n=3) and 5% (n=8) of patients. After multivariate analysis, size or generation of valves were not independent predictive factors of valve deterioration. Evolution of mean aortic gradient Conclusions After a maximal 8-year follow-up, valve deterioration after balloon-expandable TAVI is very low. In this high-risk population, TAVI seems to be a safe and durable alternative to surgery in severe aortic stenosis regardless of prosthesis generation. Acknowledgement/Funding Edwards Lifesciences


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
F Barbieri ◽  
T Senoner ◽  
J Holfeld ◽  
S Semsroth ◽  
T Lambert ◽  
...  

Abstract Aims Optimal timing of valve implantation in patients with severe aortic stenosis (AS) is under debate, considering the subjective nature of symptom onset. We aimed to investigate the pre-procedural value of routinely available cardiac biomarkers in predicting postoperative long-term outcome in a large cohort undergoing either surgical or transcatheter aortic valve implantation. Methods The Tyrolean Aortic Stenosis Study-2 (TASS-2) group, a consortium of four university hospital centers in Austria, analysed pre-procedural high-sensitivity troponin T (hsTnT) and N-terminal pro brain natriuretic peptide (NT-proBNP) plasma levels in 3595 patients admitted for valve implantation because of severe aortic stenosis since 2007. Results Transcatheter aortic valve implantation was performed in 1517 (42.2%) of patients. During a median follow-up of 2.93 (1.91–4.92) years, 919 patients (25.6%) died, among them 556 (15.5%) due to cardiovascular causes. In multivariate cox regression analysis - adjusting for STS risk score (intermediate risk 4–8%, high risk >8%), degree of left ventricular systolic dysfunction (ejection fraction 30–50% and <30%), atrial fibrillation, sex, age, renal function, COPD, arterial hypertension, diabetes mellitus, concomitant significant coronary artery disease and type of procedure (surgical aortic valve replacement or transcatheter aortic valve implantation) - pre-procedural hsTnT as well as NT-proBNP plasma levels were strong independent predictors for postoperative survival: hazard ratio [HR] 1.82, 95% confidence interval [CI] 1.07–3.11, P=0.028 for mildly to moderately elevated hsTnT (14–50 ng/l); HR 2.80, CI 1.61–4.89, P<0.001 for severely elevated hsTnT (>50 ng/l); HR 1.38, CI 1.06–1.81, P=0.018 for mildly to moderately elevated NT-proBNP (defined by an increase of up to threefold of age- and sex-corrected normal range); HR 1.68, CI 1.29–2.18, P<0.001 for severely elevated NT-proBNP (defined by an increase of more than threefold of age- and sex-corrected normal range). For direct comparison of these two biomarkers a second cox regression model was conducted including only hsTnT and NT-proBNP revealing the strength of hsTnT as a predictive biomarker: HR 2.20, 95% CI 1.29–3.77, P=0.004 for minimally elevated hsTnT (5–13.99 ng/l); HR 4.05, CI 2.41–6.82, P<0.001 for mildly to moderately elevated hsTnT (14–50 ng/l); HR 8.63, CI 5.07–14.70, P<0.001 for severely elevated hsTnT (>50 ng/l); HR 1.47, CI 1.13–1.91, P=0.004 for mildly to moderately elevated NT-proBNP; HR 1.96, CI 1.54–2.51, P<0.001 for severely elevated NT-proBNP. Conclusion hsTNT and NT-proBNP strongly predict long-term postoperative survival in patients with severe AS admitted for valve implantation. Acknowledgement/Funding This work was supported by the Tiroler Wissenschaftsförderung: grant number TWF-2017-1-5, GZ: UNI-0404-2104


Author(s):  
Akiko Masumoto ◽  
Takeshi Kitai ◽  
Mitsuhiko Ota ◽  
Kitae Kim ◽  
Natsuhiko Ehara ◽  
...  

Abstract Background Increasing number of symptomatic patients with severe aortic stenosis is treated with transcatheter aortic valve implantation (TAVI). Stroke is one of the most serious complications of TAVI, and the majority of cerebral events in patients undergoing TAVI have an embolic origin. Case summary A 90-year-old female underwent trans-femoral TAVI for symptomatic severe aortic stenosis. Just before the implantation of the transcatheter heart valve (THV), transoesophageal echocardiography (TOE) showed a mobile, high-echoic mass attached to the THV, which gradually enlarged to 26 mm, then spontaneously detached from the THV and flowed up the ascending aorta, disappearing from the TOE field of. After the procedure, the patient presented with ischaemic stroke. The patient’s stroke was thought to have resulted from the embolism migrating to the distal cerebral arteries. Discussion The detailed images acquired with TOE during TAVI enabled the prompt identification of the unusual intracardiac mass.


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