Your question is not clear. Are you asking about providing a data stream to a distant physician? Or are you looking for an expert system to interpret the ECG?
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"Well, I've wrestled with reality for 35 years, Doctor, and I'm happy to state I finally won out over it." Elwood P. Dowd
It is a specialists' job. Any how the curve traced is called RS wave-form; R, S & more points are marked & compared against a standard wave-form by Radiologist.