Transcatheter aortic valve replacement surgery
Conditions
Interventions
Observation group:None
Sponsors
West China Hospital of Sichuan University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. The position of the implanted artificial valve shows no obvious abnormalities; 2. Patients who have undergone TAVI due to severe AS and have undergone postoperative CT; 3. The expected lifespan after TAVR is greater than one year.
Exclusion criteria
Exclusion criteria: 1. Concurrent implantation of two or more thoracoabdominal valves (THV) during the first TAVR procedure; 2. No enhanced MSCT examination of the aortic root was performed before or after the TAVR procedure; 3. The quality of the enhanced MSCT images of the aortic root is poor, such as presence of obvious artifacts, low contrast of the contrast agent, or excessive image noise, which affects data analysis; 4. Unable to download the DICOM format data of multi-slice computed tomography (MSCT) for offline analysis.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Evaluation of the difficulty of coronary artery access; | — |
Secondary
| Measure | Time frame |
|---|---|
| The occurrence of perioperative and follow-up events; | — |
Countries
China
Contacts
Public ContactFeng Yuan
West China Hospital of Sichuan University
Outcome results
None listed