Cardio| Systolic Heart Murmurs
Episode description
1.06 Systolic Heart Murmurs
Cardiovascular system review for the USMLE STEP 1 Exam
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Heart murmurs are caused by turbulent blood flow in the heart
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There are 4 different types of systolic murmurs: ventricular septal defect (VSD), patent ductus arteriosus (PDA), aortic stenosis, and mitral or tricuspid regurgitation
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PDA produces a constant, machine-like murmur
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VSD produces a harsh holosystolic murmur
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Aortic stenosis produces a crescendo-decrescendo systolic ejection murmur
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Mitral and tricuspid regurgitation produce a holosystolic high pitched "blowing" murmur
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Mitral valve prolapse produces a mid-systolic click followed by a late systolic murmur
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Aortic regurgitation produces a decrescendo diastolic murmur
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Mitral stenosis produces a rumbling diastolic murmur