VitaFlow™ Transcatheter Aortic Valve System Post-market Study-The LAUNCH Study

Summary

The study objective is to evaluate safety and effectiveness/performance of the Microport™ CardioFlow VitaFlow™ Transcatheter Aortic Valve System for the treatment of severe aortic stenosis in the real world settings.

Eligibility

Inclusion Criteria:

* Age≥70 years;
* Symptomatic , calcified, severe, degenerative, native aortic valve stenosis : peak velocity ≥4.0m/s, or mean transvalvular gradient ≥40mmHg(1 mmHg=0.133kPa), or aortic valve area\<0.8cm² (or EOA index\<0.5cm²/m²);
* The patients considered to be not suitable for surgical aortic valve replacement (SAVR);
* The patient has been informed of the nature of the study, is willing to enroll in the study by signing a patient informed consent and agreeing to the scheduled follow up requirement.

Exclusion Criteria:

* Aortic root anatomy not suitable for the implantation of the transcatheter aortic valve；
* Vascular diseases or anatomical condition preventing the device access；
* Previous implantation of mechanical or bioprosthesis valve in the aortic position；
* Known hypersensitivity or contraindication to all anticoagulation/antiplatelet regimens, to nitinol, contrast media or other relevant elements；
* Ongoing sepsis, including active endocarditis；
* Estimated Life expectancy\< 12 months；
* Participating in another trial and the primary endpoint is not achieved.
* Inability to comply with the clinical investigation follow-up or other requirements.

Conditions2

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