2020年11月3日 · wide QRS with a rate of 60-110/min sinus rhythm is often only slightly slower than the arrhythmia so the dominant rhythm may be intermittent AIVR and sinus fusion beats are therefore common

2020年9月28日 · The differential diagnosis of an irregular wide QRS tachycardia is either pre-excited AF or polymorphic VT or atrial arrhythmia with variable block in the context of aberrancy. Pre-excited AF manifests as irregularity, varying QRS morphology and rapid ventricular rate owing to the short RP of the accessory pathway.

2020年5月19日 · In this review, we provide an in‐depth analysis of traditional and more contemporary methods to differentiate ventricular tachycardia and supraventricular wide complex tachycardia.

2024年9月3日 · A widened QRS complex (≥120 milliseconds) occurs when ventricular activation is abnormally slow for one of the following reasons (see "Wide QRS complex tachycardias: Causes, epidemiology, and clinical manifestations", section on 'Differential diagnosis of WCT'):

Arriving at the correct diagnosis in cases of wide complex tachycardia remains problematic for many clinicians. In this paper, we review the historical development of criteria used to differentiate among the major diagnostic possibilities and ...

Wide Complex Tachycardia – Is it Ventricular Tachycardia or Wide-complex SVT? First, we will review of Supraventricular Tachycardia (SVT) & then Ventricular Tachycardia: Supraventricular Tachycardia. Spontaneous focus of irritably of Atrium (supraventricular) that discharges at a …

Wide complex tachycardia (WCT) is a general term that broadly encompasses ventricular tachycardia (VT) and supraventricular wide complex tachycardia (SWCT). Simply defined, WCTs are rapid heart rhythms (i.e., ≥100 beats per minute) that simultaneously possess a prolonged QRS duration (i.e., ≥120 ms).

Wide complex tachycardia (WCT) refers to a cardiac rhythm of more than 100 beats per minute with a QRS duration of 120 ms or more on the surface electrocardiogram (ECG). It often presents a diagnostic dilemma for the physician particularly in determining its site of origin, which can be ventricular or supraventricular.

窄QRS波(<120ms)反映了通过正常的希氏-蒲肯野系统快速激活心室，表明心律失常起源于房室结以上或房室结内，即室上性心动过速(supraventricular tachycardia, SVT)。

Wide-complex tachycardia (WCT) describes a rhythm in which the heart rate is > 100 beats/min and the QRS complex is > 120 milliseconds.