EXTRASYSTOLES ARISING FROM THE MAIN BUNDLE OF HIS
نویسندگان
چکیده
منابع مشابه
Cardiac arrhythmias simulated by concealed bundle of His extrasystoles in the dog.
In 10 open-chest intact dog hearts, multiple close bipolar electrograms were obtained from various regions of both atria and the bundle of His. The bundle of His was also prematurely stimulated at varying coupling intervals following a sinus beat. At short coupling intervals, the bundle of His stimulus failed to propagate antegradely (no ventricular response) but did propagate retrogradely. Cou...
متن کاملDifferential diagnosis between dual ventricular response and bigeminy arising from the bundle of His.
We have read with attention the scientific letter published by Evertz et al. entitled ‘‘Dual Ventricular Response: Another Road to Supraventricular Tachycardia in Dual Atrioventricular Nodal Physiology’’. As the authors clearly explain, their case concerned a form of supraventricular ‘‘pseudotachycardia’’ in which they established a differential diagnosis involving 2 conditions: atrial tachycar...
متن کاملFreezing at the His Bundle
Prior to 1980, the only method to treat cardiac arrhythmias besides anti-arrhythmic drug therapy was open-heart surgery, that involved either dissecting or freezing the arrhythmic focus with a hand-held metal probe. Soon thereafter, early reports of percutaneously performed cardiac ablation were published that marked the beginning of a new era in the field of cardiac electrophysiology (EP). As ...
متن کاملHis Bundle Refractoriness.
Multiple points of instruction discussed practically in the context of a challenging case make for a memorable learning experience. In this installment of Teaching Rounds in Cardiac Electrophysiology, Nayyar et al elucidate the unique findings and analysis in such a manner and take us through to diagnosis and a treatment plan that eliminated arrhythmia without having to ablate all of the abnorm...
متن کاملHis bundle rhythm.
SUMMARY Traditionally the site of impulse formation in so-called A-V nodal rhythms has been considered to be within the upper, middle, and lower portions of the A-V node. In this study, evidence obtained supports the concept that the His bundle and not the A-V node is the pacemaker site in nodal rhythms. His bundle activity was recorded in clinical cases of nodal rhythms and A-V dissociation by...
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ژورنال
عنوان ژورنال: Heart
سال: 1955
ISSN: 1355-6037
DOI: 10.1136/hrt.17.4.566