About this trial
Use of the Transcatheter Aortic Valve Replacement Surgical Assist System and its Disposable Kit in Patients With Severe Aortic Stenosis to Evaluate the Safety and Efficacy of the Transcatheter Aortic Valve Replacement Surgical Assist System and its Disposable Kit for Use as an Adjunct to Transcatheter Aortic Valve Replacement
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Age ≥65 years old, gender is not limited;
Patients assessed by a cardiac multidisciplinary team (MDT) expert panel as having severe aortic stenosis and suitable for transcatheter aortic valve replacement;
Have a core laboratory assessment that the patient is anatomically suitable for transcatheter aortic valve replacement;
Patients who understand the purpose of the trial, voluntarily participate in the trial, sign an informed consent form, and are willing to cooperate in the follow-up.
Disqualifiers
Patients whose access or aortic root anatomical pattern is unsuitable for TAVR treatment;
Poor peripheral arterial conditions that preclude transfemoral TAVR;
Aortic annulus horizontal pinch angle ≥65° as measured by preoperative MDCT;
Patients at high risk of coronary obstruction requiring intraoperative coronary protection measures;
Trial design
Parallel
Treatments tested in this trial
TAVR Assistance System
DeviceWhether or not TAVR procedures are performed with a TAVR assist system
TAVR by manual
Other interventionTAVR by manual
Treatment groups
Trial outcomes
Primary outcomes
Technical Success at exit from OR, hybrid room or cath lab post-index procedure
Absence of procedural mortality; and Successful access, delivery, and retrieval of transcatheter delivery system; and Deployment and correct positioning of a single intended THV; and Freedom from re-intervention related to the device or access procedure
Secondary outcomes
Device Success
Absence of procedure mortality; and Correct position of a single prosthetic heart valve Intended performance of the prosthetic heart valve (i.e., no prosthesis mismatch and mean aortic valve gradient \<20 mmHg or peak velocity \<3 m/s; and no moderate or severe prosthetic valve regurgitation) Intended performance of the prosthetic heart valve (i.e., no prosthesis mismatch and mean aortic valve gradient \<20 mmHg or peak velocity \<3 m/s; and no moderate or severe prosthetic valve regurgitation)
Cardiac function changement
Cardiac function changement is accessed by NYHA cardiac function classification increases from baseline to 30 days
Prosthetic aortic valve function
Effective orifice area, mean transvalvular pressure difference, degree of regurgitation (mid-valve, peri-valve), degree of stenosis, etc.
Duration of aortic valve replacement
Time from start of delivery of prosthetic aortic valve by valve delivery system to successful implantation of prosthetic aortic valve
Locations
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Zhicheng Medical Technology (Jiaxing) Co, Ltd
Lead sponsor
Xiamen Cardiovascular Hospital, Xiamen University
Collaborator
Fu Wai Hospital, Beijing, China
Collaborator
Beijing Anzhen Hospital
Collaborator
The General Hospital of Northern Theater Command
Collaborator
Second Xiangya Hospital of Central South University
Collaborator
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