Normal and Abnormal Heart Sounds

References

Condition	Sound characteristics
Acute rheumatic fever	Loud first sound
Aortic insufficiency	Loud systolic ejection murmur, third sound
Aortic stenosis	Opening snap of aortic valve, early systolic ejection sound
Atrial septal defect	Abnormal splitting of second sound during expiration
Atrial septal defect	Abnormal splitting of second sound during expiration
Coarctation of aorta	Systolic murmur
Complet heart block	Slow heart rate,varying first sound
Left bundle branch block	Abnormal splitting of first sound
Left bundle branch block	Paradoxical splittingduring expiration
Mitral regurgiation	Holosystolic murmur
Mitral regurgiation	Late systolic murmur, crescendo type
Mitral regurgiation	Mid systolic click and late systolic murmur
Mitral regurgiation	Systolic murmur, crescendo type
Mitral regurgiation	Third heart sound
Mitral regurgiation + Mitral stenosis	All sound features of mitral stenosis and mitral regurgitation
Mitral regurgitation	Systolic murmur
Mitral regurgitation	Systolic murmur,high pitched and blowing type
Mitral stenosis	Accentuated first sound
Mitral stenosis	Opening snap
Mitral stenosis	Presystolic murmur
Mitral stenosis	Short, mid-diastolic murmur
Normal	Normal heart sounds
Patent ductus arteriosus	Continuous "machinery" murmur
Pulmonary stenosis	Harsh systolic ejection murmur
Right bundle branch block	Abnormal splitting of first sound
Systemic hypertension	Accentuated second sound
Tricuspid regurgitation	Holosystolic murmur, high pitched, lower during expiration and louder during inspiration
Ventricular sepatal defect	Continuous murmur

Condition	Sound characteristics
Left bundle branch block	Abnormal splitting of first sound
Right bundle branch block	Abnormal splitting of first sound
Atrial septal defect	Abnormal splitting of second sound during expiration
Atrial septal defect	Abnormal splitting of second sound during expiration
Mitral stenosis	Accentuated first sound
Systemic hypertension	Accentuated second sound
Mitral regurgiation + Mitral stenosis	All sound features of mitral stenosis and mitral regurgitation
Patent ductus arteriosus	Continuous "machinery" murmur
Ventricular sepatal defect	Continuous murmur
Pulmonary stenosis	Harsh systolic ejection murmur
Mitral regurgiation	Holosystolic murmur
Tricuspid regurgitation	Holosystolic murmur, high pitched, lower during expiration and louder during inspiration
Mitral regurgiation	Late systolic murmur, crescendo type
Acute rheumatic fever	Loud first sound
Aortic insufficiency	Loud systolic ejection murmur, third sound
Mitral regurgiation	Mid systolic click and late systolic murmur
Normal	Normal heart sounds
Mitral stenosis	Opening snap
Aortic stenosis	Opening snap of aortic valve, early systolic ejection sound
Left bundle branch block	Paradoxical splittingduring expiration
Mitral stenosis	Presystolic murmur
Mitral stenosis	Short, mid-diastolic murmur
Complet heart block	Slow heart rate,varying first sound
Coarctation of aorta	Systolic murmur
Mitral regurgitation	Systolic murmur
Mitral regurgiation	Systolic murmur, crescendo type
Mitral regurgitation	Systolic murmur,high pitched and blowing type
Mitral regurgiation	Third heart sound