asystole

One example is asystole, a flat line on the heart monitor indicating there is no electrical activity in the heart.

What makes Emma's case special is the difficulty in preserving an intestine from asystole donation due to the digestive organ's characteristics.

Mr. McAleer dialed the unit’s physician-on-call and described the shape of the EKG: the “asystole” rhythm from which almost no one comes back.

You could call this “a period of asystole,” or you could say he had “a cardiac arrest.”

It showed what in the medical field is called asystole — basically, I had flat-lined.