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Rapid-deployment or transcatheter aortic valves in intermediate-risk patients?
Piergiorgio Bruno1, Alessandro Di Cesare1, Marialisa Nesta1
11 Department of Cardiovascular Sciences, A. Gemelli Hospital, Catholic University of Sacred Heart, Rome, Italy.
Asian Cardiovascular & Thoracic Annals
|April 1, 2017
Summary
Transcatheter aortic valve implantation and rapid-deployment valve replacement offer new options for severe aortic stenosis. Rapid-deployment valves showed less regurgitation, while transcatheter valves had lower gradients, with similar survival rates.
Area of Science:
- Cardiology
- Cardiovascular Surgery
- Interventional Cardiology
Background:
- Severe aortic stenosis in intermediate-risk patients requires effective treatment options.
- Transcatheter aortic valve implantation (TAVI) and rapid-deployment valve replacement (RDVR) are emerging therapies.
- Head-to-head comparisons between TAVI and RDVR are limited.
Purpose of the Study:
- To compare postoperative echocardiographic findings and clinical outcomes of TAVI versus RDVR.
- To evaluate in-hospital and midterm results for these two novel therapies.
- To identify specific complications and prosthesis function patterns associated with each technique.
Main Methods:
- A propensity-matched comparison of 60 intermediate-risk severe aortic stenosis patients.
- Thirty patients underwent TAVI, and 30 underwent RDVR.
- Comparison of postoperative echocardiography, in-hospital, and midterm clinical outcomes.
Main Results:
- Higher freedom from paravalvular regurgitation in the RDVR group (p < 0.001).
- Lower mean transprosthetic gradient post-procedure in the TAVI group (p = 0.03).
- Increased need for permanent pacemaker implantation in the TAVI group (p = 0.01) and more postoperative atrial fibrillation in the RDVR group (p = 0.03).
- Similar low hospital mortality (p = 0.33) and comparable midterm mortality (p = 0.42) between groups.
Conclusions:
- Both TAVI and RDVR are promising for intermediate-risk severe aortic stenosis patients.
- Each technique presents distinct prosthesis function and complication profiles.
- Further research is needed to fully understand the long-term clinical impact of TAVI versus RDVR.