The sinoatrial (SA) node is the natural pacemaker of the heart. It generates electrical impulses that cause the heart’s chambers to contract, setting the heart rate. The SA node typically generates 60 ...
The rhythm in a working heart is regulated by electrical impulses. Disturbances of this bioelectrical process can result in cardiac arrhythmias, or irregularities in heartbeat -- a common ailment that ...
Researchers provide an update on how electrical impulses in the heart travel from cell to cell. The connections between cells forming the low resistance pathway and facilitating the current flow are ...
Consultant Fee/Honoraria/Speaker's Bureau - AstraZenca; Bayer AG; Bristol-Myers Squibb; Medtronic; Merck/Schering Plough; Boston Scientific Corporation; Daiichi-Sankyo/Elil Lilly and Company; Edwards ...
Reentry arrhythmia occurs when electrical signals in the heart deviate from their usual path, creating a loop that causes repeated stimulation and disrupts the heart’s rhythm. Symptoms of reentry ...
Figure 1. Three years after undergoing heart transplantation, a 44-year-old man presented with very frequent supraventricular extrasystoles (asterisks). Myocardial rejection and clinically significant ...
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