The Heart Observer Telemedicine ECG system:
Application fields of the Heart Observer :
1. Analysis of the physiological and pathological variability of the heart rate
The heart rate varies because of the neuroregulatory effects on the heart even in healthy subjects. The feaures of this variability change during pathological states.
There are various computational methods for the detection of these variabilities; the linear time-, and frequency-domain, the nonlinear analysis are used.
The risk of the cardiovascular diseases would be predicted with these parameters.
2. Analysis of rhythm disturbancies
Some types of arrhythmias would be life-threating (eg. malignant ventricular arrhythmias. The ECG monitoring technique would be signed the pathological state hours/days before its start.
The growing age of the general population shows more frequently a special kind of arrhythmia, the atrial fibrillation. Frequently it is not permanent, often undiagnosed, but the treatment would be necessary to prevent (e.g. stroke with long-term disability or death) it.
Frequently, the cause of the dizziness or collapse is the symptomatic bradycardia, wich sould be treated with permanent pacemaker.
3. Morphological alterations
Changing the special subwaves or segments of the QRST-wave claims the need of immediately medical therapy (e.g.ST elevation/depression during angina or the evolution of acute myocardial infarction ).
Features of the Heart Observer:
The new and special feature of our system to integrate the benefits of the 24 hour ambulatory (Holter) ECG, the event-recorder, and the transtelephonic ECG.
The main feature of our system is the monitoring technique. The results are based on the off-line, sophisticated analysis - not serve for an on-line telemedicine service. At now, in rare occasion - after the organization of the whole telemedicine system with all the technical and human resources - it would be applicated in real-time circumstances.
Contents of the windows:
1. Visualation of the dominant QRST-wave and with other colors the ectopic and noisy beats.
2. Poincaré plot (horizontal axis: R-R(first), vertical : R-R(next) diagram. The plot shows comet shape (widening at higher R-R-interval ) in healthy subjects. In pathological states the torpedo, complex, or irregular forms are detected.
3. HR (Hearth Rate) tachogram: HR values by time
4. Measured and calculated heart rate variability parameters.