Key result
Auscultation of normally functioning ball, disk, porcine, and bileaflet prosthetic valves involves specific acoustic events and timing mechanisms essential for assessing valve function.
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Design
Review
May support bedside recognition of normal prosthetic sounds; extends classic descriptions but leaves open validation against imaging.
Before prosthetic function can be adequately assessed, physicians must be acquainted with the normal acoustic events associated with these devices. The auscultatory findings of the most commonly used devices--ball, disk, porcine, and bileaflet valves--are reviewed. The mechanisms of sound production and their timing are discussed.
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Neale D. Smith (1981) studied this question. Auscultation of normally functioning ball, disk, porcine, and bileaflet prosthetic valves involves specific acoustic events and timing mechanisms essential for assessing valve function.
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