Alivecor received a complaint from user's relative where it appears that the user while experiencing a heart attack recorded an ecg and likely received device algorithm analysis of "normal sinus rhythm".It is unknown whether the user delayed seeking medical attention due to the kardiamobile result.Alivecor followed up with the user 4 seperate times to get additional information but was not successful.Alivecor is a lead-i mobile ecg that is not intended to detect heart attacks.The device labeling specifies that the device does not detect heart attack.It is possible for ecgs during a heart attack to still be normal sinus rhythm.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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