Transfemoral Tavi
Transfemoral Tavi - Related Videos
11:16
Engineering Platform and Experimental Protocol for Design and Evaluation of a Neurally-controlled Powered Transfemoral Prosthesis
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Cited by 15 •
2014
Neural-machine interfaces (NMI) have been developed to identify the user's locomotion mode. These NMIs are potentially useful for neural control of powered artificial legs, but have not been fully demonstrated. This paper presented (1) our designed engineering platform for easy implementation and development of neural control for powered lower limb prostheses and (2) an experimental setup and protocol in a laboratory environment to evaluate neurally-controlled artificial legs on patients with...
06:04
Upper-extremity Approach for Secondary Access in Transfemoral Transcatheter Aortic Valve Implantation
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Cited by 1 •
2025
An upper-extremity approach for secondary access during transfemoral transcatheter aortic valve implantation is associated with fewer secondary access site-related bleeding complications and reduces time to mobilization in patients requiring extended pacing. This protocol aims to provide an extensive overview of the upper-extremity approach and guide operators in adopting this methodology.
07:28
A Method for Evaluating Timeliness and Accuracy of Volitional Motor Responses to Vibrotactile Stimuli
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Cited by 6 •
2016
This article describes a technique for applying vibrotactile stimuli to the thigh of a human participant, and measuring the accuracy and reaction time of the participant's volitional response for various combinations of stimulation location and frequency.
FAQs
The replacement valve is delivered in a collapsed form and expanded within the patient’s native aortic valve. Once expanded, it anchors against the surrounding tissue, helping maintain its position while creating a new pathway for blood flow. This mechanical fixation is central to establishing stable valve function without requiring the device to be placed through open-heart surgery.
A collapsible bioprosthetic valve can travel through the arterial system inside a catheter before being expanded at the heart. Its compact delivery form supports a percutaneous approach through the femoral artery, whereas an expanded valve could not pass through that route. This design helps provide an alternative to open-heart valve replacement for selected patients.
After deployment, the implanted valve restores the functional opening through which blood leaves the left ventricle and enters the aorta. Improving this route can relieve the obstruction associated with severe aortic stenosis, support more effective forward blood flow, and improve symptoms. The procedure therefore targets both the valve lesion and its effect on cardiac function.
The main distinction is the access route and procedural approach. Transfemoral TAVI uses a catheter introduced through the femoral artery to deliver and expand a replacement valve, while open-heart surgery represents the alternative treatment approach described for selected patients. This percutaneous route broadens treatment options within structural heart disease and interventional cardiology.
The procedure begins with catheter access through the femoral artery. The catheter then carries a collapsed bioprosthetic valve through the arterial system toward the heart. At the diseased aortic valve, the device is expanded inside the native valve and anchored against surrounding tissue. The completed implantation is intended to restore the route from the left ventricle to the aorta.
The femoral artery provides an entry point for advancing the catheter through the arterial system to the heart. Using this route enables the valve to reach the aortic position without requiring open-heart access. Its role is therefore procedural as well as anatomical: it makes the percutaneous delivery strategy possible and supports a less invasive alternative for selected patients.
Transfemoral TAVI is presented as an option for selected patients with severe aortic stenosis. Suitability depends on the clinical context in which the procedure is being considered, rather than on the diagnosis alone. In medicine, its importance lies in expanding treatment choices for patients whose diseased aortic valve is impairing blood flow and cardiac function.
By replacing the obstructive valve function and improving blood flow from the left ventricle to the aorta, transfemoral TAVI can relieve symptoms and support cardiac function. These outcomes explain its use in structural heart disease and interventional cardiology. The procedure focuses on restoring effective outflow through the aortic valve rather than treating symptoms independently of the valve lesion.