Cardio| Systolic Heart Murmurs

1.06 Systolic Heart Murmurs Cardiovacular system reveiw for the USMLE Step 1 exam. Heart murmurs occur when blood flow is turbulent in the heart, producing a whooshing or swishing sound 4 different sounding systolic murmurs discussed: Ventricular septal defect, patent ductus arteriosus, aortic stenosis, and mitral/tricuspid regurgitation Patent ductus arteriosus is a machine-like murmur that is constant (heard during systole and diastole) Patent ductus arteriosus: "People who constantly PDA deserve to be thrown in a machine" Ventricular septal defect produces a harsh holosystolic murmur (only heard during systole) Ventricular septal defect: "Holy cow, its harsh being born with a VSD" Aortic stenosis produces a crescendo-decrescendo systolic ejection murmur (heard during systole) Aortic stenosis: "ASS CD (insert your least favorite band here, I’ll say Nickelback)"   Mitral and tricuspid regurgitation produces a holosystolic high pitched "blowing" murmur (heard during systole) Mitral and tricuspid regurgitation: "It sucks to climb Mt regurgitation. Climbing Mt regurgitation blows." The location and cause of the murmur can indicate whether it is mitral or tricuspid regurgitation