# Aortic stenosis

Condition · id `cardio:aortic-stenosis` · Cardiovascular Atlas · release `f6f6f1b6f50379ed` (public)

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Also called: Aortic valve stenosis; Narrowed aortic valve

Browse, organ or system: Heart  
Browse, condition area: Valve and congenital heart disease  

## In plain language

Aortic stenosis means the valve between the heart and the main artery to the body is too narrow, so the heart must put in more effort to move blood through. MedlinePlus calls it a common kind of valve narrowing. Age is a listed risk factor for valve disease, and some people are born with an aortic valve that has two flaps instead of three. Treatment can include replacing the valve, by open-heart surgery or through a catheter.

## Technical summary

Aortic valve stenosis, MeSH D001024. A US government patient page defines stenosis as a valve opening that is too narrow and gives the bicuspid aortic valve as an example; MedlinePlus says aortic valve stenosis is a common type of stenosis. US approval orders for the transcatheter valves in this atlas describe the use as easing aortic stenosis in people with heart disease with symptoms caused by severe calcific narrowing of the person's own (native) aortic valve. Trials in this atlas: PARTNER 3 and the Evolut Low Risk trial (low surgical risk), EARLY TAVR (severe stenosis without symptoms) and an earlier trial in people who could not have surgery (see the TAVR record).

## Connected pages

- A narrowing of the aortic valve: Heart valve disease (`cardio:heart-valve-disease`)
- Filed under this front: Procedures and surgery (`cardio:front-procedures-and-surgery`)
- Related to: MedlinePlus (`core:medlineplus`)
- Evaluated for this: Transcatheter aortic valve replacement (TAVR) (`cardio:tavr`) [a claim, not a settled fact; see claim `cardio:claim-tavr-2010-mortality` and its context]
- Evaluated for this: Transcatheter aortic valve replacement (TAVR) (`cardio:tavr`) [a claim, not a settled fact; see claim `cardio:claim-tavr-2010-safety` and its context]
- Evaluated for this: Transcatheter aortic valve replacement (TAVR) (`cardio:tavr`) [a claim, not a settled fact; see claim `cardio:claim-partner-3-primary` and its context]
- Evaluated for this: Transcatheter aortic valve replacement (TAVR) (`cardio:tavr`) [a claim, not a settled fact; see claim `cardio:claim-early-tavr-primary` and its context]
- Recommended for this: Transcatheter aortic valve replacement (TAVR) (`cardio:tavr`) [a claim, not a settled fact; see claim `cardio:claim-acc-aha-2020-tavr-high-prohibitive-risk` and its context]
- Investigated in: EARLY TAVR (`cardio:early-tavr`)
- Investigated in: Evolut Low Risk trial (`cardio:evolut-low-risk`)
- Investigated in: PARTNER 3 trial (`cardio:partner-3`)

## Provenance

Content hash: a43b6f5b513ea20c6d6bd2c0aba87f011a3926b6b2dc65370a93db9fc3358514
Last substantive edit: 2026-10-15
Evidence last checked: 2026-10-14