Systole - what is it? Not everyone can answer this difficult question. Therefore, we will devote this article to this topic.
General information
Systole is one of the states of the heart muscle. Experts say that this term refers to the contraction of the right and left ventricles, as well as the ejection of blood from the left ventricle into the aorta and from the right ventricle into the pulmonary trunk.
Systole is a state of the heart muscle in which the aortic and pulmonary valves remain open, and the tricuspid and mitral valves remain closed.
Pressure
As you know, to diagnose diseases of the heart and blood vessels, as well as to determine the causes of poor he alth, the patient is measured diastolic and systolic pressure. Only a few know what it means.
According to experts, blood pressure at the time of systole in the blood is recorded before diastolic. Let's take an example. After measuring the pressure, the doctor reports a value such as 130/70. The first number is systole (systolic pressure) and the second is diastolic.
What does it mean?
As mentioned above, when measuring blood pressure, the result consists of two numbers. The first digit (or the so-called upper, orsystolic pressure) indicates how much pressure the blood exerts on the vessels during heart contractions.
As for the second indicator, it reports the pressure during relaxation of the heart muscle (that is, diastole). As you know, it is formed by contraction of blood vessels (peripheral).
By measuring diastolic and systolic pressure, we can safely draw conclusions about the state of the heart and blood vessels.
Systole - these are the upper indicators that depend on the intensity of expulsion of blood, as well as compression of the heart ventricles. Thus, the level of this pressure indicates the functionality of the myocardium, the heart rate and their strength.
As for diastole, the value of this pressure depends on three factors:
- total blood volume;
- tone and elasticity of blood vessels;
- heart rate.
It should also be noted that the state of he alth of the patient can be judged by calculating the numerical difference between diastolic and systolic pressure. In medical practice, this indicator is called pulse pressure. It is considered one of the most important biomarkers.
Difference between lower and upper pressure
The duration of systole can also tell about a person's condition.
In he althy people, the pulse pressure varies between 30-40 mm Hg. Art. Based on this value, conclusions can be drawn about the functionality and condition of the cardiovascular system. If the pulse pressure is greater than the indicated values, then the patient hashigh systolic pressure with a reduced or normal diastolic rate. In this case, the aging processes of internal organs are accelerated. The heart, kidneys and brain suffer the most from this pressure.
One cannot fail to say that excessive pulse pressure indicates real risks of cardiac pathologies and atrial fibrillation.
With low pulse pressure, there is a decrease in the stroke volume of the heart. This problem can occur with heart failure, stenosis (aortic) and hypovolemia.
Normal performance
In the process of calculating pulse pressure, it is extremely important to pay attention to the compliance with normal values of diastolic and systolic pressure. Ideally, these values should be 120 and 80 units. Of course, slight variations are possible, depending on the age of the person and their lifestyle.
Elevated systolic blood pressure can cause cerebral hemorrhages, as well as hemorrhagic and ischemic strokes. As for the excessive rise in diastolic pressure, such a condition can cause chronic diseases of the urinary system and kidneys, violations of the elasticity and tone of the vascular walls.
Summarize
Now you know what systole is. This term is used in cases where it is necessary to designate the pressure exerted by blood on the vessels at the time of heart contractions. Know it and measure it when badwell-being is a must. After all, timely detected low or high blood pressure can prevent the patient from developing serious disorders in the cardiovascular system, as well as death.
When observing abnormal indicators on the dial of the tonometer, it is necessary to take all necessary measures to normalize the human condition. For this purpose, patients take various drugs and consume certain foods.
In order for blood pressure to always remain normal, you must constantly monitor your he alth, exercise, eat right, avoid stressful situations, and more.