Fasciculoventricular Pathways:

Abstract

Electrophysiologists should be able to make the differential diagnosis between a fasciculoventricular bypass tract and an anteroseptal accessory pathway to preclude potential harm to the AV conduction system if a fasciculoventricular pathway is targeted for catheter ablation.

Arrhythmias and fasciculoventricular pathways in patients with Danon disease: A single center experience

“…5 While a higher association of FVP has been recently reported in patients with hypertrophic cardiomyopathy and PRKAG2 variants, there is scarce literature on their presence in Danon disease. [6][7][8] The purpose of this study is twofold. First, to elucidate the electrical properties and arrhythmia outcomes of patients with Danon disease at our institute, and second, to describe the presence of FV pathways in this population.…”

Fasciculoventricular accessory pathways following repair of ventricular septal defects

“…Therefore, in symptomatic patients, the etiology may be related to other arrhythmogenic substrates and not the FV pathway itself. The FV pathway can have overlapping ECG features with manifest anteroseptal and midseptal accessory pathways and therefore should be correctly identified to avoid unnecessary catheter ablation and inadvertent AV nodal damage 4 . Formal electrophysiological testing in our 2 cases revealed that the observed preexcitation patterns were consistent with FV connections rather than WPW syndrome.…”

“…Fasciculoventricular (FV) pathways that manifest after CHD surgery have not been described previously. Although FV pathways do not participate in arrhythmias, their effects manifest as de novo preexcitation on surface electrocardiograms (ECGs) 4 . We present 2 cases of apparent acquired FV pathways and describe the potential mechanism of development following CHD surgery.…”

A sailor's dilemma: A case of preexcitation via a fasciculoventricular pathway

“…FVP is very rare, occurring in 1.2% to 5.1% of patients with symptomatic preexcitation 8, 9, 10, 11. No data have been published or presented regarding the prevalence in patients without symptoms.…”