Studies of heart block with His bundle electrograms.
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چکیده
منابع مشابه
Studies of heart block with His bundle electrograms.
A total of 24 patients with heart block revealed by scalar electrocardiography was studied using the His bundle electrogram. Four groups of disturbed conduction are described which include various types of heart block, partial and complete, at different sites, single and multiple, in the specialized conducting system. These are (i) intra-atrial block with delayed or blocked internodal conductio...
متن کاملHis bundle electrograms.
Since the recording of the first human electrocardiogram by Wailer in I889 the science of electrocardiography has developed and advanced rapidly, but has been limited by the inability to record electrical activity from specialized areas of the heart. A significant contribution was made by Alanis, Gonzailez, and L6pez in 1958 when they recorded His bundle potentials in the isolated perfused dog ...
متن کاملHeart Block After His-Bundle Ablation
To investigate the electrophysiological properties of ventricular impulse formation after His-bundle ablation in 11 patients, incremental ventricular overdrive stimulation studies were performed. The studies, which were spread over a follow-up period of up to 601 days, were carried out invasively with temporary leads as well as noninvasively with the implanted pacemakers and chest wall inhibiti...
متن کاملHis bundle electrograms of dog. Correlation with intracellular recordings.
Transmembrane potentials from the penetrating and branching portions of the bundle of His were simultaneously recorded along with bipolar extracellular electrograms. Recordings were obtained during periods of normal antegrade and retrograde conduction and also during various degrees of conduction delay and block within and distal to the bundle of His. The onset and ternination of extracellular ...
متن کاملBundle of His recordings in congenital complete heart block.
Six children, aged between 3 and 19 years, with congenital complete heart block without associated cardiac disease were studied by His bundle electrography. All were symptomatic with resting ventricular rates over 40 beats/min, and electrocardiograms that showed a normal axis and QRS complex. His bundle to ventricular activation was within the normal range in all and the block was proximal to t...
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ژورنال
عنوان ژورنال: Heart
سال: 1972
ISSN: 1355-6037
DOI: 10.1136/hrt.34.7.717