“It has to be at a specific instant during that normal cardiac cycle where the electrical system is disrupted and then the heart goes into this abnormal electrical cycle,” Stauffer sai ...

“This particular amount of force, combined with the timing of where the heart is in its electrical cycle, or cardiac rhythm, causes a disruption in the electrical pathway,” Stearns explained.

The blow to the chest at precisely the wrong time in the cardiac cycle causes an electrical abnormality in the heart, resulting in an irregular heart rhythm that cannot pump blood to the body.

While cardiac arrest can occur immediately following ... has hit their heart at just the wrong time in the heart's electrical cycle such that it triggers an abnormal heart rhythm." ...

Third, it must occur in a very specific section of the heart’s electrical rhythm. On a trace of the cardiac cycle – an electrocardiogram, or ECG – this is the region known as the T wave upstroke. This ...

"It happens within a critical period within the cardiac cycle. We're talking about 20 ... event to analyze the heart's rhythm and deliver an electric shock if needed. Citing national registry ...

In the cardiac cycle, blood moves from high- to low-pressure areas (Marieb and Keller, 2018). The ECG’s origin dates back to the discovery of the heart muscle’s electric activity. In 1901, Willem ...

After withdrawal of life-sustaining measures, transient resumption of at least one cycle of cardiac activity ... we defined resumption of cardiac electrical and pulsatile activity as a return ...

They must check the plumbing (the arteries), structural issues, and the electrical ... cardiac arrest occurs after a blunt force trauma to the chest at a specific time during the heart's beating ...

When the heart’s electrical system fails, death is imminent. Image via buttersweet/flickr For decades scientists have known that sudden cardiac death–a failure in the heart’s electrical ...

The impact, if delivered during a brief, sensitive moment in the heartbeat cycle, can cause the heart to enter an arrhythmia, or irregular heartbeat, which can cause cardiac arrest and death.

A cardiac cycle consists of two phases ... by stimulating the fingers of 37 subjects with a barely perceptible electrical current. After each test, participants were asked if they felt any ...