Archive - May 23, 2012 - SCA Article

Archive - May 23, 2012 - SCA Article

Study Identifies Risk Factor for Sudden Cardiac Death in Men

The risk of sudden cardiac death is higher in men whose electrical impulses travel more slowly through the lower chambers of the heart, a new study indicates.

Electrical impulses travel through the heart and cause it to pump blood through its four chambers. The impulses, or waves, have distinct patterns and can be measured using an electrocardiogram (ECG). The waves traveling through the heart's lower chambers (ventricles) are shown on the ECG as the "QRS" complex.

In the new study, more than 2,000 Finnish men, aged 42 to 60, were followed for 19 years. During that time, 156 of the men died from sudden cardiac death, in which the heart suddenly and unexpectedly stops beating.

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