Studies on conduction recovery of colateral conduction systems by atrial extrastimulation. Hyperconduction in colateral conduction system.
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چکیده
منابع مشابه
Conduction intervals and conduction velocity in the human cardiac conduction system. Studies during open-heart surgery.
Specialized fiber electrograms were recorded in 64 patients during open-heart surgery. Intervals were measured from the proximal His bundle, distal His bundle, and right and left bundle branches to the earliest QRS deflection in the limb lead ECG (pH-Q, dH-Q, RB-Q, and LB-Q interval, respectively). There was an increase of pH-Q intervals with increasing age such that at age 3 months the normal ...
متن کاملCharacterization of atrioventricular nodal reentry with continuous atrioventricular node conduction curve by double atrial extrastimulation.
BACKGROUND Characterization of typical atrioventricular nodal reentrant tachycardia (AVNRT) with continuous AVN conduction (A1A2/A2H2) curves by double atrial extrastimulation (A1A2A3) has never been systematically studied. METHODS AND RESULTS This study was composed of 33 patients with typical AVNRT and continuous AVN conduction curves (group 1) and 103 patients with AVNRT and discontinuous ...
متن کاملAberrant atrial conduction.
I would like to make one comment regarding the paper entitled 'Aberrant Atrial Conduction' from the British Heart journal of April I972, by Edward K. Chung. In all of his examples of socalled aberrant atrial conduction he makes an assumption that the aberrant atrial impulse originates from the sinus. I am unable to ascertain from his article how he came to this conclusion. Most of his examples ...
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Clinicopathological correlation was made in 8 cases of various A-V conduction disturbances, which consisted of 2 cases of complete, 4 of advanced, I of 2: 1 A-V block and 1 of A-V nodal rhythm. Serial sections of the conduction system revealed 4 types in location of main lesions. Type I (necrosis and/or fibrosis of A-V node) was found in 2 cases with syphilitic endoarteritis and acute myocardia...
متن کاملVentriculo-atrial conduction in man.
Transvenous electrodes were placed in the right atrium and ventricle of 50 patients with heart disease and arrhythmias. The ventricles were paced at several rates, each in excess of the sino-atrial rate. An atrial electrogram and surface electrocardiogram were recorded simultaneously in each patient; utilizing strict criteria, the incidence with which 1:1 ventriculo-atrial conduction (VAC) coul...
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ژورنال
عنوان ژورنال: Japanese Journal of Electrocardiology
سال: 1989
ISSN: 1884-2437,0285-1660
DOI: 10.5105/jse.9.115