What is a portable ECG?
Electrocardiography (ECG or ECG) is to record cardiac activity. This is done by placing the suction cups or disk electrodes on the skin, with the main electrodes called wires 2 and 3. Each lead records signals generated by different areas of the heart that are interpreted in the form of a graph created by the ECG machine. Large devices used for this monitoring were the only available method until the ECG portable unit has been developed to record cardiac activity using miniature electronic sensors.
After they were invented in the early 20th century, the ECG machines have been standardized over time to a 12-manager used in medical facilities. Testing precursors on portable ECG was carried out in 1964 by the US public health service when nurses received four-electrod ECG from patients in their homes and sent them to medical startsTače. In 1991, the ECG Computerized values were based on an analytical program called Louvaine Algorithm. This has led to the development of portable ECG diagnostic units using standard 12 wires that could be connected to personal computers (PC) and came out of the room to a room in hospitals and clinics.
Variations of portable ECG units were Holter monitor that had sensing wires that were connected to the patient's chest and connected to a small recording unit carried on the belt. This made it possible to monitor conditions such as irregular heart rhythm during everyday activities outside the clinical office. However, Holter's monitors were an expensive and tiring means of monitoring and were developed by smaller hand -hand portable ECGs with battery to monilo to monitor heart activity. Some of them were even capable of a 12-water record; Complete charts byThey could be stored on the unit and later printed using a computer printer.
Typical manual portable ECG records cardiac activity simply by pressing on the chest or palm hand to activate it. The actual graph of heart activity is not shown on the display. It usually shows one -channel graphic tracking of cardiac activity that can only be switched to display only digital heart rate display.
cardiac activity can be seen in various persisions and up to 400 "snapshot" waves can be recorded before filling in the memory card. Portable ECG can then be connected to a computer and software that comes with a unit can be used to print or save images as a computer file.
cheaper hand units have become a popular way to create a non -invasive record of heart rhythms. However, even with optional cables, they cannot correspond to high -quality graphs that can be obtained from standard hospital machines. There are also warnings of their useIT on anyone who is pregnant or who has a pacemaker.