NORMAL AND ABNORMAL HEART SOUNDS

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CONDITION	SOUND CHARACTERISTIC	FILE SIZE (Kb)	DURATION (Seconds)
Normal	Normal heart sounds	47.3	2.20
Acute rheumatic fever	Loud first sound	43.1	2.00
Mitral stenosis	Accentuated first sound	40.6	1.89
Mitral stenosis	Opening snap	46.1	2.04
Mitral stenosis	Short, mid-diastolic murmur	39.7	1.80
Mitral stenosis	Presystolic murmur	43.1	2.50
Mitral regurgitation	Systolic murmur	38.8	1.80
Mitral regurgitation	Systolic murmur, high pitched and blowing type	32.3	1.50
Mitral regurgiation	Systolic murmur, crescendo type	32.3	1.50
Mitral regurgiation	Late systolic murmur, crescendo type	32.3	1.50
Mitral regurgiation	Mid systolic click and late systolic murmur	37.8	1.76
Mitral regurgiation	Holosystolic murmur	32.3	1.50
Mitral regurgiation	Third heart sound	37.0	1.72
Mitral regurgiation+ Mitral stenosis	All sound features of mitral stenosis and mitral regurgitation	40.6	2.14
Aortic insufficiency	Loud systolic ejection murmur, third sound	30.8	1.97
Aortic stenosis	Opening snap of aortic valve, early systolic ejection sound	22.3	1.43
Pulmonary stenosis	Harsh systolic ejection murmur	27.8	1.78
Tricuspid regurgitation	Holosystolic murmur, high pitched, lower during expiration and louder during inspiration	91.7	4.26
Ventricular sepatal defect	Continuous murmur	24.2	1.54
Atrial septal defect	Abnormal splitting of second sound during expiration	42.6	1.98
Patent ductus arteriosus	Continuous "machinery" murmur	40.5	2.59
Coarctation of aorta	Systolic murmur	23.4	1.49
Left bundle branch block	Paradoxical splitting during expiration	32.4	1.50
Left bundle branch block	Paradoxical splitting during inspiration	40.3	1.87
Right bundle branch block	Abnormal splitting of first sound	35.4	1.64
Complet heart block	Slow heart rate, varying first sound	82.6	3.84
Systemic hypertension	Accentuated second sound	33.9	1.57

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