There are various websites that you can use to identify heart sounds. And the characteristic sounds in these different regions can give us the key to the pathological cases.
Differentiation of normal heart sounds.
Usually S1 is louder at the top of the heart in the mitral and tricuspid region and that S2 is louder at the base of the heart in the region of the pulmonary and aortic regions. The doctor listens to each sound, lowering the chest as a sequence below. If it is difficult to determine which sound is S1 or S2, especially when the speed is flowing, the impulse of the carotid artery should simultaneously be palpated with the index and middle finger, while the sounds of the heart are heard. S1 synchronously with the carotid impulse. In addition to the areas listed below, you should listen to the following areas of sounds, such as noise, that can emit these areas: the sterno-clavicular region above the collarbone and mannier, along the sternum and in the intercostal area.
Sequence
• Aortic area - It is located on the second right intercostal space next to the chest chest. Its characteristic heart sound S2 is heard louder than S1 aortic closure is heard louder.
• Pulmonology - It is located on the second left intercostal space, close to the sternum. Its characteristic heart sound is the S2 split, which is best heard, usually expanding by inspiration; pulse closure is best heard.
• Erb point - Located on the second and third left intercostal space near the chest sternum. Its characteristic heart sound is a frequent site of innocent noises, as well as aortic or pulmonary origin.
• Tricuspid area - Located in the fifth right and left intercostal space next to the chest chest. Its characteristic heart sound is a frequent site of innocent noises, as well as aortic or pulmonary origin.
• Tricuspid area - It is located on the fifth right and left intercostal space, located close to the chest sternum. Its characteristic heart sound S1 is heard as a louder sound, preferring S2 (S1 in sync with the carotid impulse).
• Mitral or apical region - It is located on the fifth intercostal space, the left mid-special line (the third to fourth intercostal space and transverse to the left midline of the clavicle in infants). Sounds because mitral closure is louder than tricuspid closure. S3 I heard at the beginning of the discharge with a child in a lying or left lateral position, occurs immediately after S2, sounds like the word “Ken-tuc-ky” (S1-S2-S3) the position on the left reduces the sound), appearing just before S1 sounds like the word "Ten-nes-see" (S4-S1-S2).
Determining heart sounds in children is quite difficult and very technical, but constant practice under the guidance of an experienced specialist will make it easier for you.
