R. L. Popp, M.D., F.A.C.P.; D. J. Goodman, M.D.; T. B. Berndt, M.D.; O. R. Brown; D. C. Harrison, M.D.
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Variability in the intensity and timing of prosthetic valve sounds suggests valve malfunction. Several patients with prosthetic valves displayed such a variable ausculatory finding in the presence of abnormal heart rhythms. This prompted investigation of poppet motion within the prosthesis, using simultaneous recordings of cardiac echograms and phonocardiograms. Fifteen patients with abnormal heart rhythms (atrial fibrillation, ventricular premature contractions, first-degree and complete heart block) and prosthetic mitral valves were studied. Abrupt closure of the valve was caused by premature beats. Apparently physiologic motion of the poppet toward the closed position occurred either during prolonged diastole or prolonged P-R interval, with
Popp RL, Goodman DJ, Berndt TB, Brown OR, Harrison DC. Simultaneous Cardiac Echography and Phonocardiography in the Interpretation of Prosthetic Valve Sounds.. Ann Intern Med. ;78:822. doi: 10.7326/0003-4819-78-5-822_1
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Published: Ann Intern Med. 1973;78(5):822.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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