[Effect of radiofrequency ablation of accessory atrio-ventricular junctions on electromechanical coupling of the myocardium in children with manifesting Wolf-Parkinson-White syndrome].
Aim of the study was to assess immediate and remote hemodynamic and electromechanical effects of radiofrequency ablation of accessory atrio-ventricular pathways in children with manifesting Wolf-Parkinson-White (WPW) syndrome. Radiofrequency ablation of accessory atrio-ventricular pathways resulted in diminishment of intraventricular dyssynchrony, what appeared as lowering of the degree of heterogeneity of electromechanical intervals and was associated with significant augmentation of left ventricular stroke volume. Presence of pronounced intraventricular asynchrony might be an additional indication to radiofrequency ablation of accessory atrio-ventricular pathways in patients with WPW syndrome without history of documented attacks of tachycardia.
Martsinkevich
G I
GI
Sokolov
A A
AA
Murzina
O Iu
OIu
Kovalev
I A
IA
Popov
S V
SV
D000293:Adolescent; D009202:Cardiomyopathies / Q000503:physiopathology* / Q000601:surgery*; D017115:Catheter Ablation / Q000295:instrumentation*; D002648:Child; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria / Q000503:physiopathology* / Q000601:surgery*; D006329:Heart Conduction System / Q000503:physiopathology* / Q000601:surgery*; D006801:Humans; D008297:Male; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000503:physiopathology* / Q000601:surgery*; D018487:Ventricular Dysfunction, Left / Q000503:physiopathology* / Q000601:surgery*; D014927:Wolff-Parkinson-White Syndrome / Q000453:epidemiology*