Cardiotachometry Integrating

Cardiotachometry is a method of measuring heart rate, which is used to assess the condition of the cardiovascular system and identify possible disturbances in the functioning of the heart. In integrating cardiotachometry, a special device is used - a cardiotachograph, which records the average heart rate for specified time intervals. This method provides more accurate heart data than other methods of measuring heart rate.

Integrating cardiotachography is a technique that allows you to simultaneously record and analyze various indicators of heart function - heart rate (HR), intervals between contractions (RR intervals), duration of individual cardiac cycles (QT interval) and others. The data obtained can be used to diagnose various heart diseases and evaluate the effectiveness of treatment.

To record an integrating cardiotachogram, special devices are used - cardiotachographs. They make it possible to record various parameters of the heart over a long period of time, which makes it possible to obtain a more complete picture of the state of the cardiovascular system.

In conclusion, we can say that integrating cardiotachometry is an important method for diagnosing and assessing the state of the cardiovascular system, which allows you to obtain the most accurate data on the work of the heart and identify possible disorders.

**Cardiotachometry** is a method for studying central and peripheral hemodynamics, as well as blood circulation in individual organs and tissues. With this method, the number of heart contractions is counted and each subsequent contraction is a variation of the previous one. The purpose of the study is to obtain data on the functional characteristics of cardiac activity and its changes over a short period of time.

This method has become most widespread in studies of the pumping function of the heart. In these cases, the heart rate is compared with the volume of blood flowing through the vessels. In the rhythm of contractions of the heart muscle, three components are distinguished: contractions of the atria (atrial systole), the myocardium itself, which are called systolic, and contractions of the valve sacs (valvular systole), or contractions of the ventricles of the heart (systolic beat). The main condition for interpreting the results is the value of systole, which is equal to the difference between the largest and smallest diameter of the heart in diastole. The magnitude of systole is due to the fact that in the human body the blood flow that simultaneously pumps the entire volume of incoming blood is provided by heart contractions. To eliminate the interfering influences of blood vessels, they try to include only the systolic movement of blood pushed out by the left ventricle into systole. This is possible due to the constancy of the volume of fluids in the bloodstream of any tissue or organ and the small volume of blood located in the veins. The largest volume of blood is in the left atrium, so the contractile movements of the heart are called atrial systole. Heart rate variability is assessed by the number of variations of the “RR” intervals over a certain period of time, under which the condition NN 50 is met. The number of cardiac cycles must be at least 30, otherwise the values ​​may be distorted. The values ​​of the amplitude of respiratory arrhythmia or parasympathetic regulation of heart rate allows us to differentiate patients with concomitant respiratory pathology (chronic obstructive pulmonary disease). The normal dynamics of the coefficient of variation of heart rate reflects the adaptive capabilities of the autonomic and humoral modulating circuit to social or physical stress.