Heart Monitor Types
Resting, Stress, Holter and Event ECG
There are a number of different types of heart monitors, included resting, stress and ambulatory ecg heart monitor. The latter relates to heart holter and event recorders. The use of the different heart montior types mainly depends on the aim of the ecg monitoring and the frequency of the symptoms or complaints.
Resting ECG Heart Monitor
The traditional way of ecg monitoring in clinical environment. The standard resting heart monitor usually records 12 channels with 10 electrodes and suitable for evaluating irregular rhythms, blood and oxygen supply of the heart and other overall cardiovascular conditions. Monitoring of your heart at rest usually takes 5 to 10 minutes.
Stress ECG Heart Monitor
A stress heart monitor is used when you are taking exercises in order to give information on how the heart works under stress in clinical environment. The stress test supports the diagnosis of coronary heart disease, when the arteries of the heart become narrowed and it may help the medical professional to decide how much exercise it is safe for you after a heart attack or heart surgery. During the stress heart monitoring, the patient rides on a bike or walks on a treadmill. This type of ECG monitoring takes about 15-30 minutes.
Ambulatory ECG Heart Monitor
Both a heart holter monitor and an event recorder enable monitoring of the heart away from clinical environment, for a longer period of time. These are portable heart monitors.
A heart holter monitor is usually applied for only a few days, most frequently up to 24 hours to record ECG signals continuously over a day and night, when normal activities are carried out. A heart holter monitor is useful to show the ecg abnormalities which are reflected in the shape and freqency of the heart beats. A holter monitor is an excellent tool to monitor the ecg-components very accurately, included P wave, QRS-complex and T wave, which all provide information on the patient's heart conditions. Wearing a heart holter monitor is indicated for detecting arrhythmias or for diagnosing atrial fibrillation, tachycardia, bradycardia, palpitations.
An ecg event recorder does not record ecg continuously, usually only when the symptoms occur. Therefore the event recorders have smaller memory, because they store only a few hours of ECG. Usually their memory can be overwritten, which makes it possible to wear these recorders up to several weeks. An ecg event recorder is applied when the symptom does not occur very often, such as fainting or palpitations or an ecg event recorder is also useful in diagnosing silent ischemia, as it is not symptomatic.