Fascicular Ventricular Tachycardias: Potential Role of the Septal Fascicle
2023年8月1日 · We describe a new schema hypothesizing involvement of the septal fascicle in fascicular VTs. Our proposal has mechanistic and therapeutic implications for the spectrum of fascicular VTs. Ventricular tachycardias involving the fascicular system are amongst the most challenging and intriguing arrhythmias for cardiac electrophysiologists.
Fascicular Ventricular Arrhythmias | Circulation: Arrhythmia and ...
2017年1月13日 · Almost 60% of people may also have a third fascicle termed the left septal, upper, or median fascicle. 7,8 The left bundle anatomy can exhibit considerable variation in the normal human heart with potential for significant cross-linking between fascicles and variability in the width, length, and degree of arborization 9 . The fascicular system ...
Left Septal Fascicular Block: Myth Or Reality? - PMC
Left septal fascicular block is a polymorphic conduction defect which may explain some previously inadequately understood electrocardiographic abnormalities. Keywords: fascicular block, left septal fascicular block, intraventricular conduction defects, ventricular activation.
The Role of the Left Septal Fascicle in Fascicular Arrhythmias:
The left septal fascicle (LSF) can originate directly from the left bundle (LB) or from tributaries from the left anterior fascicle (LAF) and left posterior fascicle (LPF) before arborizing into a network that inserts into the left mid septum .
Alternating anterior and posterior fascicular block and left septal ...
2024年7月1日 · The septal fascicle excites the muscular fibers of the middle third of the left interventricular septum and shows considerable variability in its anatomy; in most cases it originates from the trunk of the left bundle branch, but sometimes from the anterior or the posterior fascicle [1].
The Role of the Left Septal Fascicle in Fascicular Arrhythmias
Objectives: This study describes a series of cases best explained by invoking the left septal fascicle (LSF) as a critical component of the arrhythmia circuit. Background: Numerous anatomic studies have shown evidence of the LSF, but its precise role in the onset of arrhythmia is unclear.
Fascicular Ventricular Tachycardias: Potential Role of the Septal Fascicle
From this base, we canvas the basic and clinical evidence supporting a potential role for the septal fascicular network and propose a new schema hypothesizing involvement of this fascicle. Although we focus primarily on the most common left posterior fascicular ventricular tachycardia, our discussion and proposal have mechanistic and ...
The Role of the Left Septal Fascicle in Fascicular Arrhythmias ...
This study describes a series of cases best explained by invoking the left septal fascicle (LSF) as a critical component of the arrhythmia circuit.
Left septal fascicular block: Evidence, causes, and diagnostic criteria
2023年8月14日 · In this review, we have updated the criteria for left septal fascicular block (LSFB) and the differential diagnosis of prominent anterior QRS forces. More and more evidence points to the fact that the main cause of LSFB is critical proximal stenosis of the left anterior descending coronary artery before its first septal perforator branch.
To propose a new schema hypothesizing involvement of the left septal fascicle (LSF) to better explain the ventricular muscle to left posterior fascicle connection. A critical review and analysis of the available preclinical and clinical data on FVTs was undertaken to identify evidence supporting a potential mechanistic role for the LSF.