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 ...

Midsystolic murmurs — also known as systolic ejection murmurs, or SEM — include the murmurs of aortic stenosis, pulmonic stenosis, hypertrophic obstructive cardiomyopathy and atrial septal ...

Typical findings in patients with ASD may include a prominent right ventricular impulse along the left sternal border, a systolic ejection murmur audible along the left upper sternal border caused ...

The Graham-Steell murmur remained a universally accepted ... and an early systolic ejection click at the left sternal border. The pulmonic 2nd sound was increased in intensity.