To the Editor: Cardiac troponins are preferred markers of tissue injury in acute coronary syndromes. Their specificity and the fact that only very minute amounts or none are normally found in the ...

Two runners experienced cardiac arrest at the 2020 3M Half Marathon in Austin, but both were able to receive CPR immediately.

In 2021, professional runner Meghan Roth suffered a cardiac arrest during on mile eight of the Boston Marathon. This year, Roth is back in Boston helping promote the importance of CPR among ...

The cardiac cycle refers to the pattern of contraction and relaxation of the heart during one complete heartbeat.