Alivecor received a social media comment from a user where it appears that the user while experiencing a "100% lad blockage" recorded an ecg and likely received device algorithm analysis of "normal sinus rhythm"; the user likely delayed medical attention due to this result.Alivecor followed up with the customer 4 separate times to get additional information but was not successful.Alivecor is a lead-i mobile ecg that is not intended to detect an infarct.The device labeling specifies that the device does not detect heart attack.It is common for ecgs during 100% lad blockage to still be normal sinus rhythm and the st elevation that is normally present during such incidents is not detectable in lead-i.Note that the device is also not intended to detect st elevation.It appears that the device likely had no malfunction, did not cause or contribute to the heart attack, and the incident was a result of user error.
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