منابع مشابه
Supernormal conduction in the human atria.
A supernormal period of intraand interatrial conduction was observed in five patients during premature stimulation of various atrial sites with driving cycle lengths ranging between 500 and 600 msec. Electrograms were recorded with filtered, 1-mm apart, bipolar catheter electrodes placed in the high right atrium, coronary sinus, and midleft atrium. The supernormal period, which lasted from 90 t...
متن کاملA computer model of normal conduction in the human atria.
Although considerable progress has been made in understanding the process of wavefront propagation and arrhythmogenesis in human atria, technical concerns and issues of patient safety have limited experimental investigations. The present work describes a finite volume-based computer model of human atrial activation and current flow to complement these studies. Unlike previous representations, t...
متن کاملRetrograde Conduction to the Atria in Ventricular Tachycardia By ALBERT
CONTRARY to the prevalent view that retrograde conduction to the atria in ventricular tachycardia is rare,' the author has recorded tracings consistent with such conduction relatively frequently with simultaneous standard and esophageal leads. The standard electrocardiographic tracings often fail to demonstrate atrial activity accurately, because the atrial deflections are small and lost in the...
متن کاملRetrograde conduction to the atria in ventricular tachycardia.
CONTRARY to the prevalent view that retrograde conduction to the atria in ventricular tachycardia is rare,' the author has recorded tracings consistent with such conduction relatively frequently with simultaneous standard and esophageal leads. The standard electrocardiographic tracings often fail to demonstrate atrial activity accurately, because the atrial deflections are small and lost in the...
متن کاملHis bundle rhythms with retrograde conduction to the atria.
His bundle electrograms were repeatedly recorded in two patients with complex arrhythmias. In the first case the pacemaker was located in the lower part of the left bundle-branch, retrogradely activating the His bundle. Atrial standstill was associated with this mechanism. Afterfour days, His bundle tachycardia occurred, with constant retrograde activation of the atria, and anterograde block. I...
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ژورنال
عنوان ژورنال: Japanese Heart Journal
سال: 1967
ISSN: 0021-4868,1348-673X
DOI: 10.1536/ihj.8.276