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Cell, Vol. 104, 569580, February 23, 2001, Copyright 2001 by Cell Press Molecular and Cellular Mechanisms Review
 

Summary: Cell, Vol. 104, 569580, February 23, 2001, Copyright 2001 by Cell Press
Molecular and Cellular Mechanisms Review
of Cardiac Arrhythmias
then slowly repolarize, which is denoted as the T wave
on the ECG, leading to cardiac relaxation and comple-
tion of one cardiac cycle.
Mark T. Keating* and Michael C. Sanguinetti
*Howard Hughes Medical Institute
Department of Cell Biology
Harvard Medical School The rhythmic activity of the human heart is clearly
apparent by ultrasound after only five weeks of gesta-Department of Cardiology
Children's Hospital tion. It is remarkable to think how flawlessly the heart
performs in the course of one's life, beating 70 timesBoston, Massachusetts 02115
Department of Medicine per minute over a course of 75 to 90 years. One's heart
must beat, therefore, 36 million times a year, a remark-Division of Cardiology
Eccles Program in Human Molecular Biology able feat considering that there is virtually no tolerance
for failure.and Genetics
University of Utah Health Sciences Center
Salt Lake City, Utah 84112 Cardiac Arrhythmias and Sudden Death
Although most hearts beat with remarkable fidelity and

  

Source: Akabas, Myles - Department of Physiology and Biophysics, Albert Einstein College of Medicine, Yeshiva University

 

Collections: Biology and Medicine