Mitral regurgitation chest x-ray: Difference between revisions
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*As opposed to aortic valve calcification, calcification of the mitral annulus is not significantly associated with stenosis of the valve and contrary to previous thought, nor is it associated with [[stroke]]s - when other factors are adjusted for in multivariate models. | *As opposed to aortic valve calcification, calcification of the mitral annulus is not significantly associated with stenosis of the valve and contrary to previous thought, nor is it associated with [[stroke]]s - when other factors are adjusted for in multivariate models. | ||
*Mitral valve calcification can be associated with impaired [[AV nodal conduction]] and can be associated with varying degrees of [[heart block]]. | *Mitral valve calcification can be associated with impaired [[AV nodal conduction]] and can be associated with varying degrees of [[heart block]]. | ||
Pathologically it is important to distinguish annular calcification, which is not on the leaflet, and is covered with intact endothelium, from leaflet calcification in stenotic valves secondary to [[rheumatic fever]]. | *The left main sten bronchus can be pushed up by an enlarged [[left atrium]] | ||
*Pathologically it is important to distinguish annular calcification, which is not on the leaflet, and is covered with intact endothelium, from leaflet calcification in stenotic valves secondary to [[rheumatic fever]]. | |||
*If there is no enlargement of the cardiac silhouette and pulmonary edema is present, this suggests acute disruption of the valve apparatus. | |||
==References== | ==References== | ||
Revision as of 22:32, 15 April 2012
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Mitral Regurgitation Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Mitral regurgitation chest x-ray On the Web |
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American Roentgen Ray Society Images of Mitral regurgitation chest x-ray |
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Risk calculators and risk factors for Mitral regurgitation chest x-ray |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]; Varun Kumar, M.B.B.S.; Lakshmi Gopalakrishnan, M.B.B.S.
Overview
The chest x-ray in individuals with chronic mitral regurgitation is characterized by enlargement of the left atrium and the left ventricle.
Mitral Regurgitation Chest X-ray Finding
- The pulmonary vascular markings are typically normal in chronic compensated mitral regurgitation, since the pulmonary venous pressures are usually not significantly elevated.
- Calcification of the mitral annulus is not infrequent, and is seen in up to 35% of elderly patients on echocardiography which is more sensitive than CXR. It typically begins around the margins of the posterior leaflet forming a “C” (as in this case) - eventually with anterior leaflet involvement the “C” closes forming an “O”.
- As opposed to aortic valve calcification, calcification of the mitral annulus is not significantly associated with stenosis of the valve and contrary to previous thought, nor is it associated with strokes - when other factors are adjusted for in multivariate models.
- Mitral valve calcification can be associated with impaired AV nodal conduction and can be associated with varying degrees of heart block.
- The left main sten bronchus can be pushed up by an enlarged left atrium
- Pathologically it is important to distinguish annular calcification, which is not on the leaflet, and is covered with intact endothelium, from leaflet calcification in stenotic valves secondary to rheumatic fever.
- If there is no enlargement of the cardiac silhouette and pulmonary edema is present, this suggests acute disruption of the valve apparatus.