Electrical features of eighteen automated external defibrillators: a systematic evaluation.

Aim: Assessment and comparison of the electrical parameters (energy, current, first and second phase waveform duration) among eighteen AEDs.

Method: Engineering bench tests for a descriptive systematic evaluation in commercially available AEDs. AEDs were tested through an ECG simulator, an impedance simulator, an oscilloscope and a measuring device detecting energy delivered, peak and average current, and duration of first and second phase of the biphasic waveforms.