What causes a pulseless ventricular tachycardia? What is the difference between the one with pulse present?
Cardiac arrest refers to a condition in which the heart stops pumping blood to the body. It occurs due to one of three main reasons, as will be explained as follows:- 1) The first is ventricular fibrillation/pulseless ventricular tachycardia. In this case, the heart shakes rapidly but does not pump blood (ventricular fibrillation), or it tries to pump so rapidly (pulseless ventricular tachycardia) it does not allow blood to flow in, or effectively flow out. 2) The second type is called pulseless electrical activity (also known as electromechanical dissociation). In this case there is normal electrical conduction in the heart, but the heart does not contract. 3)The third type is called asystole, in which there is no electrical activity or muscle activity of the heart. Vice versa is the case of pulse present VT.
