Sinus bradycardia can be defined as a sinus rhythm with a resting heart rate of 60 beats per minute or less. However, few patients actually become symptomatic until their heart rate drops to less than 50 beats per minute. The action potential responsible for this rhythm arises from the sinus...
Wide QRS tachycardia with right bundle branch block QRS morphology that is almost identical to that during sinus rhythm: What is the mechanism?ablationleft posterior fasciclemyocardial infarctionPurkinje fiberventricular tachycardiadoi:10.1111/jce.13610Wakabayashi, Yasushi...
In normal sinus rhythm, what does the P-wave, the PR interval, QRS complex, and QT interval reflect?Question:In normal sinus rhythm, what does the P-wave, the PR interval, QRS complex, and QT interval reflect?ECG:An ECG, or electrocardiogram, is an e...
AI artificial intelligence; ECG electrocardiogram; NSR normal sinus rhythm; PAF paroxysmal atrial fibrillation. Full size image Discussion We analyzed the predictive value and the optimal section in an ECG for identifying AF during NSR using a deep learning algorithm. The AI-deep learning algorithm ...
The heart rate is typically used to describe how many beats per minute the heart generates. The heart rhythm generally is used to describe the pattern in which the heart beats. The normal cardiac rhythm that is typical is a normal sinus rhythm....
with narrowQRS complexes. Junctional escape beats originate from the AV node and are narrow and complex; P waves from retrograde conduction may or may not be present. Ventricular escape rhythm is a wide, complex slow rate of approximately 30 to 40 beats per minute. Recognition and prompt ...
It occurs in patients with or without heart disease, most of them with no prior evidence of AV or intraventricular conduction abnormalities. AV block is localized within the AVN, is associated with a narrow QRS escape rhythm, and is generally benign. The prevalence of vagally mediated AV block...
Fig.9), we propose the sinus node dysfunction becomes more severe and the sinus node can no longer be supported by activation of the sympathetic nervous system. This may result in bradycardia in the mouse (Fig.3) and also in the human: in the CARSIMA study, the heart rhythm of 297 ...
A narrow QRS tachycardia easily provoked by exercise during sinus rhythmCatheter ablationLong RP tachycardiaTachycardia-induced cardiomyopathydoi:10.1016/j.hrthm.2019.07.022Hein J. WellensHeart Rhythm
Wide complex tachycardia with atrioventricular dissociation and QRS morphology identical to that of sinus rhythm: a manifestation of bundle branch reentry. Heart 1996;76:541-7.Oreto G, Smeets JL, Rodriguez LM, Timmermans C, Wellens HJ. Wide complex tachycardia with atrioventricular dissociation and ...