The first and second heart sounds are usually heard, while some children and young adults may hear the third heart sound. The third heart sound is sometimes heard in young people. The fourth heart sound is not usually heard in healthy people over 40 years of age, but occasionally it can be heard. What are the most common abnormal changes in heart sounds in clinical practice?
I. Change in heart sound intensity
1.Augmentation of the first heart sound.
2, diminished first heart sound.
3, unequal strength of the first heart sound.
4.Large cannon sound.
5.Augmentation of the second heart sound.
6.Diminished second heart sound.
II. Change of heart sound nature
Three, heart sound splitting
1.First heart sound splitting.
2.Second heart sound splitting.
Fourth, the third and fourth heart sounds and heart sound distant
1.Third heart sound.
2.Fourth heart sound.
3.Distant heart sounds.
V. Additional heart sounds (tritone rhythm)
1.Systolic extra heart sounds.
2, diastolic extra heart sounds.
Sixth, tumor flutter sound
Extracardiac sounds
Artificial pacing sounds
The heart sounds can be enhanced or diminished due to the disease of the heart itself or the influence of external factors. The changes can occur simultaneously or separately for two heart sounds. A significant change in the intensity of a heart sound is mostly due to heart disease.