University of Michigan Heart Sound and Murmur Library
https://www.umms.med.umich.edu/psb/
   

= Play the Heart Sound

(mp3 versions of all the sounds on this site)

 
  Apex Area - Supine, Listening with the bell of stethoscope
  Single S1 S2   Split S1   Mid-Systolic Click  
Normal
Normal
Mitral Valve Prolapse
 
Early Systolic Murmur Mid-Systolic Murmur Late Systolic Murmur Holosystolic Murmur


Acute Mitral Regurgitation
Mitral
Regurgitation due to CAD (Coronary Artery Disease)

Mitral Regurgitation due to MVP (Mitral Valve Prolapse)

Classic Mitral Regurgitation
-or-
Ventricular Septal Defect when heard along the left sternal border

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  Apex Area - Left Ducubitus, Listening with the bell of stethoscope
  S4 Gallop   S3 Gallop   Systolic Click with Late Systolic Murmur

Left Ventricular Hypertrophy
Both Normal and Cardiomyopathy
Mitral Valve Prolapse with Mitral Regurgitation
         
S4 and Mid-Systolic Murmur S3 and Holosystolic Murmur Mitral Opening Snap and Diastolic Murmur  
Ischemic Cardiomyopathy with Mitral Regurgitation
Dilated Cardiomyopathy with Mitral Regurgitation
Mitral Stenosis
 
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  Aortic Area - Sitting, Listening with the bell of stethoscope
  Normal S1 S2   Systolic Murmur with Absent S2   Early Diastolic Murmur

Supine
Normal

Severe Aortic Stenosis
Aortic Regurgitation
         
Systolic and Diastolic Murmurs      
Combined Aortic Stenosis and Regurgitation            
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  Pulmonic Area - Supine, Listening with the diaphragm of stethoscope  
  Single S2   Split S2 Persistent   Split S2 Transient

Normal in Elderly
Complete Right Bundle Branch Block (On ECG)
Normal
         
Ejection Systolic Murmur with Transient Splitting S2 Ejection Systolic Murmur with Persistent Split S2 and Ejection, Systolic Murmur Ejection Systolic Murmur with Single S2 and Ejection Click    
 
Innocent Murmur



Arterial Septal Defect

Pulmonary Valve Stenosis
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https://www.umms.med.umich.edu/psb