Hyperkalaemia induced complete atrioventricular block with a narrow QRS complex
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چکیده
منابع مشابه
A Narrow QRS Complex Tachycardia:
An 80-year-old man underwent an electrophysiologic procedure because of recurrent episodes of supraventricular tachycardia. Episodes of nonsustained narrow QRS complex tachycardia occurred spontaneously after catheter placement. Examples of the onset and termination of an episode of tachycardia are shown in Figures 1 and 2, respectively. What is the mechanism of the tachycardia? What is the lev...
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Reentry within the His-Purkinje System (V3 phenomenon) where the reentry pathway incorporates both bundle branches and the bundle of His is a frequent phenomenon during ventricular refractory period studies. In this form of reentry, both divisions of the left bundle branch function as a single limb and the reentrant beats (V3) have either left bundle branch block or right bundle branch block pa...
متن کاملHaemodynamics during a complete exercise induced atrioventricular block.
The case is reported of an athlete who, during an exercise test, had a complete atrioventricular block without symptoms of cardiac output failure. Heart rate, stroke index, cardiac index, and myocardial contractility were monitored during the episode by an impedance cardiograph. The most important findings of this report are the continuous increase in stroke index, which compensated for the lac...
متن کاملExercise-Induced Complete Atrioventricular Block: A Case Report
Received 7/11/2002; revised 8/21/2002; accepted 8/28/2002. For correspondence or reprints contact: Por-Jau Huang, M.D., Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital. 7 Chung-Shan South Road, Taipei 100, Taiwan Tel: (886) 2-23123456 ext. 5031, Fax: (886)2-23957855, E-mail: porjau @ ha.mc.ntu.edu.tw A 52-year-old man with normal atrioventricular (AV...
متن کاملHyperkalemia-induced complete heart block
Background: Potassium, as an extracellular ion, plays an important role in the electrophysiologic function of the myocardium and any change in extracellular concentration of this ion might have a marked impression upon myocyte electrophysiologic gain. High serum potassium levels are thought to impair pulse conduction in Purkinje fibers and ventricles more than that in the Atrio...
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ژورنال
عنوان ژورنال: Heart
سال: 2005
ISSN: 1355-6037
DOI: 10.1136/hrt.2004.046524