"Electromechanical dissociation.

His name is often abbreviated as EMD, which is also the acronym of the feared terminal cardiac event 'electromechanical dissociation', otherwise known as pulseless electrical activity.

There is a danger of precipitating asystole or electromechanical dissociation, so this technique should not be used for VT with a pulse unless a defibrillator and pacemaker are immediately available.

Early studies showed decreased segmenting pressure activity in this disease with absence of the normal postprandial pressure response although the normal postprandial increase in myoelectrical spike activity was retained, suggesting some sort of electromechanical dissociation.

Pulseless electrical activity or PEA (also known by the older terms electromechanical dissociation) refers to a cardiac arrest situation in which a heart rhythm is observed on the electrocardiogram that should be producing a pulse, but is not.