منابع مشابه
A narrow QRS gallop rhythm
The QRS complexes 1, 2, 4, 5 and 7 are not preceded by atrial activation. The QRS morphology is slightly different from an A-V conducted beat (QRS 3, 6). Therefore an origin in the bundle branch system is presumed for beats 1, 2, 4, 5 and 7. An escape beat (QRS 2, 5) is retrogradely conducted to the atrium with atrial activation followed by AV conduction and ventricular capture (#3, 6). This ph...
متن کاملA 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 کاملVentricular Tachycardia with Narrow QRS
gram. Tachyeardias originating in the left bundle branch and documented by right, left, and His bundle recordings have been produced in animals given excessive digitalis. We have noted a similar tachycardia in a patient with ischemic heart disease receiving digitalis during hypokalemia. The QRS complexes were 0.10 sec in duration and by contour suggested an ectopic focus located in the posterio...
متن کاملThe clinical significance of gallop rhythm in hypertension.
Gallop rhythm is widely held to be a sign of prognostic value, and this opinion has been supported by follow-up studies of patients with gallop rhythm in groups of mixed etiology. This method of assessment is, however, open to criticism; first, because it is so dependent upon the way in which the patients are selected, and secondly, because the prognostic significance of gallop rhythm is clearl...
متن کاملDiagnostic dilemma with a narrow QRS regular rhythm at normal rates in a patient with corrected transposition of great arteries.
A 35 year old male, known case of corrected transposition of great arteries presented with exertional dyspnea and recurrent pre-syncope. 12 lead electrocardiogram revealed a regular rhythm at 75 beats per minute, P waves occurring on the upstroke of T waves and apparent 1:1 P-QRS relationship. The possibilities to be considered - complete AV block with junctional escape, junctional rhythm with ...
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ژورنال
عنوان ژورنال: Netherlands Heart Journal
سال: 2015
ISSN: 1568-5888,1876-6250
DOI: 10.1007/s12471-015-0653-1