from
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8762386/
Myxomatous degeneration is derived from the word myxoma. It is described as the “non-inflammatory progressive disarray of the valve structure caused by a defect in the mechanical integrity of the leaflet due to the altered synthesis and remodeling by type VI collagen” (
2). The valve leaflets grossly appear thickened with thin and translucent regions in the longitudinal and transversal axis (
2). Commonly this process affects not only the valves but also the chordae tendineae. The pathophysiology is not fully understood, but it is thought to be due to an imbalance in the synthesis and degradation of the extracellular matrix (
2). This non-inflammatory process most often affects the mitral valve and rarely affects the aortic valve. A common complication of myxomatous degeneration of the aortic valve is the rupture of the chordae tendineae, which leads to acute valvular regurgitation and congestive heart failure. Few cases with variable patient presentations have been reported in the literature. However, no previous literature review has been completed to highlight the various manifestations, diagnostic modalities, and treatment options of myxomatous aortic valve degeneration. Herein, we presented a case of a 64-year-old Caucasian woman with aortic valve insufficiency due to myxomatous degeneration of the aortic valve, which is very uncommon.
just in case you were as interested in this as me ;-)