It’s Topic Tuesday!
- molly56764
- Apr 14
- 2 min read
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Hi family, Welcome to Another Topic Tuesday post! Today we will be discussing Valve-Sparing Aortic Root Replacement (VSARR)
An aortic root aneurysm is a dilation of the most proximal part aorta at the level where it connects to the heart and surrounds the aortic valve. Like most aneurysms, they tend to be asymptomatic but can lead to life-threatening complications if untreated including rupture, dissection and aortic valve disease / heart failure if it stats to stretch on the valve leaflets and distort them!
Why the Aortic Root Is Different
The aortic root is a dynamic structure composed of the aortic valve leaflets and encompassing tissue that expands to help accommodate blood flow every time the heart beats. As the root dilated, it can stretch the valve leaflets apart causing blood to leak backwards into the heart.
Overtime this can can force the heart to work harder than it has to and lead to symptoms of heart failure! It also makes repairing these aneurysms harder because one has to be mindful of whether or not the valve needs to be removed or if it can be preserved (Valve-sparing aneurysm repair).
Historically, the standard operation was the Bentall procedure, which would replace the entire aortic root and valve with a new aortic graft and artificial valve - essentially take everything out and replace it with artificial material. It was highly effective but patients who had healthy valves were now subjected to the limitations that come with an article aortic valve - namely blood thinners (mechanical valves) or limited durability which may ultimately require a second valvular surgery or procedure (tissue valves).
The Shift Toward Valve-Sparing Techniques
Over the past few decades, valve-sparing aortic root replacement (VSARR) has emerged as an attractive option for selected patients with normal valve leaflets.In order to qualify for a VSARR a patient must have:
Aortic Root Aneurysm (dilation of the aortic root)
Healthy Aortic Valve that can be preserved
The benefits of VSARR is that you keep your own heart valve
Avoidance of blood thinner
Preserve native valve blood flow and heart dynamics
Lower risk of prosthesis-related complications such as infections
Higher durability than tissue valves
Improved quality of life, especially in younger patients
The two main approaches for VSARR are the David Procedure (Re-implantation) and the Yacoub (Re-Modeling) procedure. Each has its own benefits /drawbacks that are the beyond the scope of this week’s post but will be reviewed in the near future!
However, success depends heavily on patient selection and surgical expertise. Leaflet quality, degree of annular dilation / aneurysm size and underlying disease process all factor into decision-making. Be sure to ask your surgeon about their experience performing these operations and how their patients do afterwards.
Centers comfortable doing VSARR will have data to back it up and happily share their experiences and approaches!
That’s it for this week! Be sure to touch base with us next week for more aneurysm learning this month. Until then, be sure to always think family, and think aorta!
Adham
Adham Ahmed MD
Integrated Cardiothoracic Surgery Resident
University of Pittsburgh Medical Center
200 Lothrop Street, Suite F441
Pittsburgh, PA 15213
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