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Improved Registration of 3D CT Angiography with X-ray Fluoroscopy for Image Fusion During Transcatheter Aortic Valve Implantation
Published on: June 3, 2018
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Transcatheter Aortic Valve Replacement: Efficiency and Safety Improvements With Progressive Experience and Improved
Innovations (Philadelphia, Pa.)
|April 19, 2018
Summary
Transcatheter aortic valve replacement (TAVR) procedures became safer and more efficient over time. Increased operator experience and technological advancements led to reduced procedure times and complication rates in later patient groups.
Area of Science:
- Cardiology
- Interventional Cardiology
- Cardiac Surgery
Background:
- Transcatheter aortic valve replacement (TAVR) is a viable treatment for severe aortic stenosis in patients at intermediate, high, or inoperable risk.
- Assessing the learning curve and technological impact on TAVR outcomes is crucial for optimizing patient care.
Purpose of the Study:
- To evaluate the changes in safety and efficiency of TAVR procedures over time.
- To compare patient outcomes across different cohorts based on procedural experience.
Main Methods:
- A retrospective analysis of 300 patients undergoing TAVR from March 2012 to June 2016.
- Patients were divided into three groups: first 100 (Group A), second 100 (Group B), and last 100 (Group C).
- Preoperative, intraoperative, and postoperative data were collected and analyzed.
Main Results:
- Procedure times (fluoroscopy, operation, incision) and contrast volume significantly decreased from Group A to Group C (P < 0.05).
- Acute kidney injury rates decreased significantly from Group A to Group C (26% vs. 0.3%, P < 0.001).
- Stroke incidence declined over time (5% in Group A, 2% in Group B, 0% in Group C), and in-hospital mortality decreased from 5% in Group A to 1% in Group C.
Conclusions:
- Increasing experience and technological advancements in TAVR procedures enhance operator proficiency.
- These improvements lead to more efficient and safer TAVR procedures with better patient outcomes over time.
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