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Chest, Vol 73, 189-192, Copyright © 1978 by American College of Chest Physicians

ARTICLES

Diastolic rumbles in normally functioning porcine mitral valves

MJ Mirro, HJ Phyhel, LS Wann, AE Weyman, ME Tavel and J Stewart

Fourteen of 22 patients (64%) with normally functioning porcine prosthetic valves in the mitral position had apical diastolic rumbles on phonocardiogram and by auscultation. Six (27%) had opening snaps. Factors necessary for the production of a diastolic rumble appear to include central flow, a flexible stent, and the presence of biologic material. Clinicians should be aware that diastolic murmurs and snaps occur in the normally functioning porcine valve.




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Copyright © 1978 by the American College of Chest Physicians.