Related Experiment Video
Updated: Aug 6, 2026
14:14
Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
14.1K
Neo-Commissural Alignment by Withdrawing and Readvancing the Delivery System during Transcatheter Aortic Valve
Xian Liu1, Yingdong Wang1, Yuhe Sheng1
1Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China.
Journal of Interventional Cardiology
|December 20, 2023
Summary
This study shows that repositioning the Venus-A plus transcatheter heart valve delivery system during transcatheter aortic valve replacement can achieve neo-commissural alignment, improving valve positioning.
Area of Science:
- Cardiology
- Interventional Cardiology
- Medical Devices
Background:
- Severe aortic valve stenosis requires intervention.
- Transcatheter aortic valve replacement (TAVR) is a common treatment.
- Optimal prosthesis alignment is crucial for TAVR success.
Purpose of the Study:
- To assess the feasibility of achieving neo-commissural alignment during TAVR.
- To evaluate a technique involving repositioning the delivery system.
- To investigate alignment using self-expanding prostheses.
Main Methods:
- TAVR performed in five patients with severe aortic valve stenosis.
- Femoral approach utilized for valve delivery.
- Delivery catheter withdrawn and readvanced with adjusted orientation based on fluoroscopic markers.
- Neo-commissural alignment assessed via pre- and post-TAVR computed tomography.
Main Results:
- Successful repositioning achieved in all five patients.
- Commissural angle deviation averaged 12.3° ± 7.0° post-procedure.
- Neo-commissural alignment was achieved in three patients.
- Mild misalignment observed in two patients.
Conclusions:
- Neo-commissural alignment is achievable during TAVR.
- Controlling delivery catheter orientation using valve inflow markers is effective.
- This technique offers potential for improved TAVR outcomes.
Related Concept Videos
01:27Peripheral Artery Disease III: Interprofessional Care
Peripheral Artery Disease (PAD) is characterized by narrowed arteries that diminish blood flow to the extremities. Effective management of PAD requires an interprofessional approach involving various healthcare professionals. The critical aspects of interprofessional care for PAD patients focus on risk factor modification, drug therapy, exercise therapy, nutrition therapy, critical limb ischemia care, and interventional radiology and surgical procedures.The primary treatment goal for PAD...
01:23Peripheral Artery Disease V: Postoperative Nursing Management
During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...