Self-Expanding Heart Valve Treats Severe Aortic Stenosis
By HospiMedica International staff writers Posted on 21 Mar 2018 |
Image: The Centera THV system (Photo courtesy of Edwards Lifesciences).
A novel transcatheter heart valve (THV) valve aids treats patients with severe aortic stenosis requiring aortic valve replacement (AVR).
The Edwards Lifesciences (Irvine, CA, USA) Centera THV system is an ultra-low-profile self-expandable valve that consists of three treated bovine pericardial tissue leaflets attached to a nitinol frame and polyethylene terephthalate (PET) fabric. The stent frame is short, and therefore does not have a flared distal section that extends into the ascending aorta, facilitating centering and seating of the valve within the annulus. The shorter frame may also help to improve paravalvular sealing due to minimal protrusion of the valve frame into the left ventricle. Centera is available in 23 mm and 26 mm sizes.
The THV is provided with the valve pre-attached to the delivery system, facilitating rapid placement using a low-profile, 14F motorized delivery system that allows single-operator repositioning and retrieval. A dynamic expansion mechanism (DEM) allows transient sheath compression during valve delivery; immediately after it passes through, the DEM allows the sheath to return to its original low-profile diameter. Buttons control valve loading and deployment, while a handle release button and valve release mechanism permit the final release of the device.
“The Edwards Centera valve demonstrates extremely favorable early clinical safety and performance outcomes in the high surgical risk TAVR population,” said Didier Tchétché, MD, of Clinique Pasteur (Toulouse, France). “In addition to excellent patient outcomes, the valve also offers several unique features and an innovative tissue design, all of which simplify the procedure for clinicians.”
THV, sometimes called transcatheter aortic valve implantation (TAVI), may be an option for people who are considered at intermediate or high risk of complications from surgical aortic valve replacement. It can also be indicated in those who cannot undergo open-heart surgery.
Related Links:
Edwards Lifesciences
The Edwards Lifesciences (Irvine, CA, USA) Centera THV system is an ultra-low-profile self-expandable valve that consists of three treated bovine pericardial tissue leaflets attached to a nitinol frame and polyethylene terephthalate (PET) fabric. The stent frame is short, and therefore does not have a flared distal section that extends into the ascending aorta, facilitating centering and seating of the valve within the annulus. The shorter frame may also help to improve paravalvular sealing due to minimal protrusion of the valve frame into the left ventricle. Centera is available in 23 mm and 26 mm sizes.
The THV is provided with the valve pre-attached to the delivery system, facilitating rapid placement using a low-profile, 14F motorized delivery system that allows single-operator repositioning and retrieval. A dynamic expansion mechanism (DEM) allows transient sheath compression during valve delivery; immediately after it passes through, the DEM allows the sheath to return to its original low-profile diameter. Buttons control valve loading and deployment, while a handle release button and valve release mechanism permit the final release of the device.
“The Edwards Centera valve demonstrates extremely favorable early clinical safety and performance outcomes in the high surgical risk TAVR population,” said Didier Tchétché, MD, of Clinique Pasteur (Toulouse, France). “In addition to excellent patient outcomes, the valve also offers several unique features and an innovative tissue design, all of which simplify the procedure for clinicians.”
THV, sometimes called transcatheter aortic valve implantation (TAVI), may be an option for people who are considered at intermediate or high risk of complications from surgical aortic valve replacement. It can also be indicated in those who cannot undergo open-heart surgery.
Related Links:
Edwards Lifesciences
Latest Surgical Techniques News
- Cutting-Edge Robotic Bronchial Endoscopic System Provides Prompt Intervention during Emergencies
- Handheld Device for Fluorescence-Guided Surgery a Game Changer for Removal of High-Grade Glioma Brain Tumors
- Porous Gel Sponge Facilitates Rapid Hemostasis and Wound Healing
- Novel Rigid Endoscope System Enables Deep Tissue Imaging During Surgery
- Robotic Nerve ‘Cuffs’ Could Treat Various Neurological Conditions
- Flexible Microdisplay Visualizes Brain Activity in Real-Time To Guide Neurosurgeons
- Next-Gen Computer Assisted Vacuum Thrombectomy Technology Rapidly Removes Blood Clots
- Hydrogel-Based Miniaturized Electric Generators to Power Biomedical Devices
- Custom 3D-Printed Orthopedic Implants Transform Joint Replacement Surgery
- Wearable Technology Monitors and Analyzes Surgeons' Posture during Long Surgical Procedures
- Cutting-Edge Imaging Platform Detects Residual Breast Cancer Missed During Lumpectomy Surgery
- Computational Models Predict Heart Valve Leakage in Children
- Breakthrough Device Enables Clear and Real-Time Visual Guidance for Effective Cardiovascular Interventions
- World’s First Microscopic Probe to Revolutionize Early Cancer Diagnosis
- World’s Smallest Implantable Brain Stimulator Demonstrated in Human Patient
- Robotically Assisted Lung Transplants Could Soon Become a Reality