Systolic murmurs can be classified as either midsystolic (systolic ejection murmurs, or SEM), holosystolic (pansystolic) or late systolic. A midsystolic murmur begins just after the S1 heart sound ...

Systolic murmurs can be classified as either midsystolic (aka systolic ejection murmurs or SEM), holosystolic (pansystolic), or late systolic. A midsystolic murmur begins just after the S1 heart ...