Systolic Murmur
Systolic Murmur
- A systolic murmur is an abnormal sound that is present in systole, between the first heart sound (S1) and the second heart sound (S2).
- Note whether the murmur is present in early, middle or late systole, or is pansystolic.
Causes of Systolic Murmur
- Aortic stenosis
- Mitral regurgitation
- Tricuspid regurgitation
- Ventricular septal defect
- Hypertrophic obstructive cardiomyopathy
- Pulmonary stenosis
- Soft systolic murmur - likely innocent murmur due to physiological bloodflow
- Early systolic murmur - ventricular septal defect, mitral regurgitation, tricuspid regurgitation
- Ejection (Mid)Systolic Murmur - aortic or pulmonary stenosis
- Late systolic murmur - mitral valve prolapse
- Pansystolic murmur - tricuspid or mitral regurgitation
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