Heart tones reflect the sound phenomena during one heartbeat. This cycle is repeated, so the tones have their typical rhythm and synchronicity. The sounds have a frequency between 15 and 400 Hz and are not heard with a simple ear. They are established by a stethoscope (medical handset) or a specific microphone placed on the chest wall. They are divided into normal tones and noises that speak of variance of the norm or of disease. Their capture and interpretation, of course, also depends on the listener’s experienced ear.
What’s The Normal Heart Tones Rate And Its Meaning
The normal finding in the so-called auscultation (or “hearing” of the heart) may contain four major tones. For their formation, there is a sharp change in the direction and speed of movement of the blood. As a result, opening and closing of heart valves, vibration of the ‘muscular’ muscles as well as all other heart valvular structures.
The tones that are captured are the transmission of these oscillations to the chest wall and from there to the medical stethoscope. There are 4-5 zones on the front chest wall on which these sounds are normally tracked. They correspond to the four main valves of the heart. Mitral and tricuspid valve divides atriums and chambers. The aorta is responsible for the connection of the body with the aorta and the pulmonary, respectively, with the lung vessels.
Proper heart rate requires a thorough and consistent analysis of all its valves and zones. There is another important point, called a heartbeat, which is tracked at a particular point on the chest wall and speaks of a cut of the chambers. If necessary, the major blood vessels that leave the heart and go to the neck, the axils (the underarm area) and even the abdomen where the aorta are respectively are also observed.
Systolic The First Heart Tone & Diastolic – The Second Heart Tone
The first tone is formed mainly by the closure of the valves between the atria and the chambers. There is a big difference in his sound depending on which valve will be heard. It is formed by the swelling of the canvases, as well as the movement of the blood in the initial part of the main blood vessels (the aota and the pulmonary artery). This is the stronger and leading tone of both.
The second tone, respectively, is caused by the sudden closing of the valves that emit the blood to the lung and the whole body. These are the pulmonary and aortic hemispheres. The formation of this tone is particularly complex and is due to the drop in blood pressure and the “stroke” of its slight backflow. The two valves have a slight divergence in their closing, so even in a healthy heart the second tone is slightly split.
A third tone is heard only in a part of healthy hearts, and usually in children. It is more common in some diseases or transitional heart conditions. The fourth is not heard in the usual “hearing” of the heart. Besides these basic tones, there are a number of others that are formed when the activity of the valvular and muscular apparatus of the heart is changed. According to the order, strength, duration, intensity and a number of other characteristics, the overall cardiac activity is also interpreted.
What is the Significance of Cardiac Noises in the Cardiac Review?
These sound finds are heard between the main heart tones. They are mainly due to the swelling of the blood, the so-called turbulent movement. They usually have a higher frequency than the main tones. There is a huge variety in noise according to their strength, character and duration. They moan on one of the tones or hear themselves between them.
They may be temporary or permanent, and may experience dynamism over time. Noise usually helps to characterize congenital or acquired defects in the valves (constriction or valve insufficiency). Accordingly, the sounds can be heard on all the valves or characterize one of them. There is a maxim in medicine that sometimes the bigger the defect, the less noise is heard. This, of course, is not universal.
Having heartburn is something that can be worn for life and not to mention a significant heart disease. Sometimes, however, a very noisy new or changing old noise can talk about a serious problem and require a timely medical response. Today, medical technology is evolving more and the main goal is to avoid the subjective moment of individual medical perversion. It is valuable that the noise findings are recorded and subsequently analyzed and traced.