Oct 8, 2024 · RBBB: Right Bundle Branch Block V1: RSR’ pattern in V1, with (appropriate) discordant T wave changes V6: Widened, slurred S wave in V6. Associated features incude: Appropriate discordance with ST depression and/or T-wave inversion in …

Mar 9, 2010 · ECG recognition – RVOT VT is associated with a characteristic ECG morphology of LBBB with inferior axis (Figure 1a). Anterior sites in the RVOT shows a dominant Q-wave or a qR complex in lead I and a QS complex in aVL.

They are often caused by a combination of ST elevation, hyperacute T-waves, and a bundle branch block. If the end of the QRS complex can be identified on one lead, it can be used to time-stamp the end of the QRS and find other leads using vertical lines.

Oct 18, 2004 · Background— Identifying the septal versus lateral site of origin of ventricular tachycardia (VT) with a right bundle-branch block (RBBB)–type pattern and an R-S ratio >1 in lead V 1 is difficult with the 12-lead ECG, especially in patients with prior apical infarction.

Nov 3, 2020 · Ventricular Tachycardia = 3 or more VEB at a rate of > 130 beats/min. If > 30 seconds = sustained; can be monophoric or polymorphic.

Background—Identifying the septal versus lateral site of origin of ventricular tachycardia (VT) with a right bundle-branch block (RBBB)–type pattern and an R-S ratio 1 in lead V 1 is difficult with the 12-lead ECG, especially in patients with prior apical infarction. Methods and Results—We prospectively evaluated 58 patients with VT ...

Sep 12, 2017 · Left posterior fascicular ventricular tachycardia (LPF-VT) is frequently misdiagnosed as supraventricular tachycardia with aberrant right bundle branch block (RBBB) and left anterior hemiblock (LAHB).

Sep 1, 2020 · Right bundle branch block (RBBB) ventricular tachycardia (VT) morphology is a criterion for left ventricular (LV) involvement in arrhythmogenic right ventricular cardiomyopathy (ARVC). The purpose of this study was to determine the frequency and chamber of origin of RBBB VT in patients with ARVC and VT.

In patients with ARVC and VT presenting for VT ablation, RBBB VT occurs in 17% of cases, with most RBBB VTs (62%) originating from the RV and not indicative of LV origin. Precordial R-wave transition and frontal plane axis can be used to identify …

Ventricular tachycardia (VT) may emerge due to increased/abnormal automaticity, re-entry or triggered activity. All types of myocardial cells may be engaged in initiation and maintenance of this arrhythmia. As mentioned above VT causes hemodynamic compromise.