Validation of a Smartphone-based Recorder for Detection of Cardiac Arrhythmias
Validation of a Smartphone-based Recorder for Detection of Cardiac Arrhythmias
The investigators will evaluate the diagnostic yield of the new AliveCor device versus a 12
 lead ECG when used simultaneously to detect cardiac arrhythmia
The investigators are planning to record 250 pre-defined abnormal ECGs (50 each of atrial
 fibrillation, atrial flutter, pre-excitation, ventricular tachycardia, , supraventricular
 tachycardia) and 150 control ECGs (100 sinus rhythm, 50 sinus tachycardia) using both the
 AliveCor Smartphone device and a 12-lead ECG. All 400 ECGs will then be read by 3 blinded
 reporters - a Consultant Electrophysiologist, a Consultant General Cardiologist and a General
 Practitioner. The output of the AliveCor automatic detection algorithm will also be recorded
 as a fourth reporter. The screening characteristics of all 4 reporters using the AliveCor
 device vs the definitive 12 lead ECG will be analysed and compared.
Inclusion Criteria:

 -  Male or female patients >18 years

 -  12 lead ECG finding of arrhythmia, manifest pre-excitation, pacing rhythm (in the EP
 lab), sinus rhythm or sinus tachycardia

 Exclusion Criteria:

 -  Age <18 years

 -  Patients unable to or unwilling to use the device

 -  Patients with cardiac pacemaker, ICDs, or other implanted electronic devices