Is narrow qrs complex tachyarrythmia always from supraventricular?
نویسندگان
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...
متن کاملIntraventricular reentry with narrow QRS complex.
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 کاملQRS supraventricular tachycardia
To determine the value of alternation of QRS morphology in determining the site of origin of sustained narrow QRS supraventricular tachycardia (SVT), we retrospectively studied 163 distinct tachycardias in 161 patients (ages 4 to 91 years) in whom the site of origin of SVT was proven by intracardiac electrophysiologic study. Sustained SVT was defined as lasting longer than 30 sec. Narrow QRS wa...
متن کاملQRS complex voltage changes associated with supraventricular tachycardia.
INTRODUCTION The aim of this study was to evaluate the changes in ventricular complex voltage associated with narrow QRS supraventricular tachycardia (SVT). METHODS AND RESULTS One hundred forty-five patients undergoing catheter ablation for SVT, 85 with AV nodal reentrant tachycardia (AVNRT) and 60 with AV reentrant tachycardia (AVRT) due to a concealed accessory pathway, were studied. Four ...
متن کاملA rare case of narrow QRS complex tachycardia
We present the case of a 63-year-old female patient who, 2 months earlier, had been diagnosed with a severe ischaemic cardiomyopathy (left ventricular ejection fraction of 18 % on cardiac MRI) due to a large semi-recent transmural left anterior descending artery infarction. She was referred to our coronary care unit because her physical condition had been declining rapidly over the previous 2 d...
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ژورنال
عنوان ژورنال: Majalah Kedokteran Andalas
سال: 2019
ISSN: 2442-5230,0126-2092
DOI: 10.25077/mka.v43.i1.p38-46.2020