The effect of intracellular $Na^+$ on spontaneous action potential of single cardiac myocytes in rabbit pulmonary vein

  • Kim, Won-Tae (Department of Physiology College of Medicine, Ulsan University) ;
  • Nam, Ki-Byung (Department of Cardiology College of Medicine, Ulsan University) ;
  • Kim, Yoo-Ho (Department of Cardiology College of Medicine, Ulsan University) ;
  • Jang, Yeon-Jin (Department of Physiology College of Medicine, Ulsan University) ;
  • Park, Ki-Rang (Department of Physiology College of Medicine, Ulsan University) ;
  • Park, Chun-Sik (Department of Physiology College of Medicine, Ulsan University) ;
  • Lee, Chae-Hun m (Department of Physiology College of Medicine, Ulsan University)
  • Published : 2001.06.01

Abstract

Even though atrial fibrillation is the most prevalent arrhythmia, the mechanism of development is not yet clear. Recently, there has been several reports that the most frequent source of paroxysmal atrial fibrillation is located inside pulmonary vein. Recently we successfully isolated single cardiac myocytes which were inside of pulmonary vein and reported the spontaneous action potential was generated from these cells.(omitted)

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