Holter ECG monitoring is a diagnostics method carried out with the help of a special portable device( recorder) that records a human cardiogram during its various activities for a minimum of 24 hours, and sometimes even two weeks. It gives more extensive results than a conventional cardiogram.
In cardiology there is a mass of pathologies capable of causing transient changes in the ECG, i.e.those processes and anomalies that can not always be determined at a doctor's appointment. Moreover, a conventional electrocardiogram can cause stress to the patient or fix his moment experiences, which are not related to the disease. At the same time, heart parameters are completely neglected at the time of physical exertion, food intake, rest, etc. All these drawbacks are devoid of KH observer monitoring of the ECG.What is it?
First of all, this term is commonly referred to as a "dynamic ECG", which is recorded during the day, 24 hours or sometimes a week, in order to detect anomalies in the heart. For daily monitoring, a portable, compact cardiorespirator is used. Modern models of cardio-holter are equipped not only with the device for recording ECG, but also are able to record indicators of blood pressure, respiration, etc. This device was named by its discoverer, biophysicist Norman Holter, who first proposed the method of daily ECG monitoring.
The decoding of the readings is fast enough, just attach the ECG recorder to the computer and perform the analysis. Graphically you will see qualitative and quantitative changes, indicators of maximum and minimum heart rate, pressure jumps and so on.
- 1 Features holter monitoring ECG
- 1.1 Advantages Holter ECG monitoring
- 2 How is ECG and blood pressure monitored by Holter?
- 2.1 What determines the quality of the results?
- 2.2 Possible inconveniences when using ECG on Holter
- 2.3 Results Holter monitoring of ECG and AD
Features holter monitoring ECG
The main advantage of this method is its versatility. Sensors are fixed on the chest, as is the case with a normal ECG, and the card recorder is placed in a small handbag, which is worn on the waist or worn over the shoulder. During the whole period of Holter's work, the patient can lead a normal life without limiting himself in movements and activity. After all, the main task of the device to capture deviations in the work of the heart and identify factors that provoke unpleasant sensations in the field of its projection. Moreover, there are pathologies that are extremely dangerous for their suddenness, for example, the AV blockade, can manifest even at the moment of sleep. The patient is given a form where he indicates the hours of sleep, wakefulness, makes notes of the time when there was a deterioration in well-being, marks the period of eating and active activities. To determine the stress changes in the work of the heart, it is suggested to walk along the stairs from the first floor to 4 or the fifth, depending on the potential health of the person being studied.
Advantages Holter ECG monitoring
- Prolonged recording of cardiac output in a patient-friendly environment.
- The mobile and compact device is powered by a battery, so it does not cause any difficulties during operation.
- Ability to identify episodes of pain and painless myocardial ischemia, arrhythmia, hypertension, hypotension.
- High accuracy of the results determination allows to quickly reveal the existing pathology or to deny its presence.
- Does not cause discomfort during use.
- Monitors are distinguished by channels from 2 to 12, the more channels of ECG detection, the more accurate the result.
- Affordable cost of the procedure.
Indications for Holtert can be transient changes in the heart rate, which are difficult to detect on a normal ECG, while the patient's complaints confirm a certain diagnosis. Especially relevant is the daily monitoring of suspected extrasystole, i.e.an extraordinary contraction of the heart, which leads to a rhythm disturbance.
It is extremely difficult to draw an analogy between traditional ECG and Holter research, as these two methods of studying the work of the heart complement each other. Moreover, Holter makes it possible to identify life-threatening conditions and to prevent their development in time. It is often the data of the daily ECG that can be taken as an indication for implantation of the pacemaker, with atrioventricular blockades, etc.
How is ECG and blood pressure monitored according to Holter?
As already stated above, there are portable cardiac monitors that are equipped with the option of controlling blood pressure. Such devices are especially effective in detecting the risk of developing myocardial infarction, while the usual ECG is able to record already post-infarction changes: abnormal Q( QS) and others.
Apparatus with a cuff are more functional. At a certain programmed time period, it is automatically inflated, registering automatically blood pressure indicators. For the diagnosis and treatment of hypertension( recurrent seizures) and hypertension( permanent states), such a device is very effective.
But in general, such a survey will be much cheaper than long-term treatment of neglected forms of cardiac pathology.
It will take only two visits to the doctor. The first is to install the device and program it, and the second one - the next day, to take off and analyze the results.
What determines the quality of the results?
When the ECG signal recording is over( usually after 24 or 48 hours), the doctor analyzes the results. Since it would take a very long time to execute it manually, they resort to the help of an automatic analysis process, which is in every software. Those. The program automatically determines the various types of heartbeats, rhythm, etc. However, the success of automatic analysis is very closely related to signal quality. The quality itself mainly depends on the attachment of electrodes to the patient's body. If they are incorrectly installed, electromagnetic interference can affect the ECG signal as a result of very noisy recording. If the patient moves fast - the distortion will be even stronger. Such a record is very difficult to process.
In addition, the reliability and correct installation of electrodes, there are other factors affecting the signal quality, for example, muscle tremor, sampling frequency and resolution of the digitized signal( expensive and modern devices offer a higher sampling frequency).
If the patient is taking any medications, he should tell the doctor about it to correct the therapy and obtain reliable ECG results. Maintaining the ECG diary is an integral part of the study, so it is necessary to carefully fill in the data about your well-being, supporting them with a clear characteristic of the sensations and time frames.
Possible inconveniences when using ECG on Holter
Given the fact that the card recorder is the same electrical appliance, the basic principles of safety in handling it differ little from the operation of a mobile phone: it is forbidden to wet electrodes or the apparatus itself, to mechanically act on it and t. As for the use of Holter at night, a single procedure will not be very inconvenient.
Also recommended: do not contact magnets, metal detectors, keep away from high voltage power lines and electrical equipment. Physical stress should not be limited, since it is necessary to lead a habitual way of life.
Holter monitoring results for ECG and AD
The transcript of the daily electrocardiogram will help the doctor make the right conclusion, determine the presence and extent of the pathology, and prescribe timely and adequate therapy. The reliability and effectiveness of the methodology is unquestionable, and the price is justified by the effort for decoding.
Conducting regular medical diagnostics is not a whim, but a vital necessity, a kind of investment in one's own health, which is really priceless.