Sudden unexpected improvement in the atrioventricular conduction. What is the mechanism?
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چکیده
منابع مشابه
Transient unexpected improvement of AV conduction: What is the mechanism?
This ECG was recorded from a 93 year old patient with a previously documented third degree AV block and an underlying LBBB. The twelve lead ECG demonstrates sinus bradycardia at a rate of 52 beats per minute, a PR interval of 230 milliseconds, and a left bundle branch block (Figure 1). In figure 2, a rhythm strip of leads V1, II and V5 shows sinus rhythm with AV block. Note that only P waves in...
متن کاملThe mechanism of atrioventricular conduction.
Potentials recorded at various sites in the atrioventricular (A-V) conduction system indicate that conduction is continuously electrical in nature and involves no synapse-like (i.e., chemical) conduction. The region between atrium and atrioventricular node has the slowest conduction velocity (.05 M./see.) and lowest safety factor. Conduction through the A-V node is at about .12 M./sec. Results ...
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Lesions of the Atrioventricular Conduction
DURING the repair of congenital defects of the venitricular septum, various disturbances of cardiac function may occur.1'Permanent complete heart block has been the most serious of these disturbances. Right bundle-branch block seems benign. Inereased knowledge of the anatomic features of the atrioventricular (AV) conduction system has resulted in surgical technics that have nearly eliminated co...
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ژورنال
عنوان ژورنال: Indian Pacing and Electrophysiology Journal
سال: 2021
ISSN: 0972-6292
DOI: 10.1016/j.ipej.2021.05.001