English to Italian Medical Medical: Instruments Electrocardiogramme device

When using stainless steel or silver electrodes a defibrillator discharge current may cause the electrodes to retain a residual charge causing a polarization or dc offset voltage.
This electrode polarization will block acquisition of the ECG signal.
To avoid this condition, use non-polarizing electrodes (which will not form a dc offset voltage when subjected to a dc current) such as silver/silver-chloride types if there is a situation where there is a likelihood that a defibrillation procedure will be necessary.
If polarizing electrodes are used, we recommend disconnecting the lead-wires from the patient before delivering the shock.
**Electrode defibrillation recovery** is the ability of the electrode to allow the ECG trace to return after defibrillation.
We recommend using non-polarizing disposable electrodes with defibrillation recovery ratings as specified in AAMI EC12 4.2.2.4.
AAMI EC12 requires that the polarization potential of an electrode pair does not exceed 100mV, 5 seconds after a defibrillation discharge.

Non riesco a capire come rendere il concetto: recupero elettrodo dopo la defibrillazione?