Valve prosthesis | Auscultatory Findings | |
Mitral | Aortic | |
Ball valves (eg, Starr-Edwards) | A2-MO interval 0.07 to 0.11 seconds | S1-AO interval 0.07 seconds |
MO louder than MC | AO louder than AC | |
Soft systolic murmur | Soft, harsh systolic ejection murmur | |
No diastolic murmur | "Seating puff" - diastolic rumble | |
Tilting disc valves (eg, Medtronic-Hall) | A2-MO interval 0.05 to 0.09 second | S1-AO interval 0.04 seconds |
MO is soft or may not be audible | AC louder than AO | |
Soft systolic murmur | Soft systolic ejection murmur | |
Soft and short diastolic rumble | "Seating puff" - diastolic rumble | |
Bioprosthetic valves | A2-MO interval 0.1 seconds | S1-AO interval 0.03 to 0.08 seconds |
MC louder than MO | AC louder than AO | |
MO is audible in approximately 50% | AO may be absent | |
Soft apical systolic murmur | Soft systolic ejection murmur | |
Soft diastolic ramble | No diastolic rumble | |
Bileaflet valves (eg, St. Jude) | Loud AO and AC | |
Soft systolic ejection murmur |
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