Abstract
Multiple clinical investigators contributed to our understanding of the floppy mitral valve/mitral valve prolapse (FMV/MVP), an important clinical entity in valvular heart disease1–8. FMV/MVP postural auscultatory phenomena (posturally mediated changes in timing and intensity of the systolic click-apical systolic murmur) were explained in haemodynamic terms in the 1970s as changes in timing and extent of MVP and the time of onset and duration of mitral regurgitation were related to postural changes in left ventricular volume and contractility1–8. Thus, by the late 1970s, clinical auscultatory, postural auscultatory dynamics and angiographic definition of FMV/MVP characteristics, with established pathological correlates, provided a reasonable clinical diagnostic profile of the FMV/MVP, mitral regurgitation triad. When M-mode echocardiography was introduced as the diagnostic standard for MVP, the auscultatory-phonocardiographic and angiographic diagnostic criteria and correlates that existed for FMV/ MVP, mitral regurgitation, were relegated to a minority position1–3. Patients or individuals with small, hyperdynamic left ventricles had false-positive echocardiograms and were placed into the same category as patients with the FMV/MVP. As the MVP pendulum moves away from the exaggerated prevalence figures of the past two decades, it is apparent that the FMV occupies the high ground and is the central issue in the FMV/MVP, mitral regurgitation triad (Fig. 1).
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Boudoulas, H., Schaal, S.F., Wooley, C.F. (1998). Floppy Mitral Valve/Mitral Valve Prolapse: Cardiac Arrhythmias. In: Vardas, P.E. (eds) Cardiac Arrhythmias, Pacing & Electrophysiology. Developments in Cardiovascular Medicine, vol 201. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5254-9_12
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