Incidence of Periaortic Sustained Ventricular Tachycardias Long After Surgical Aortic Valve Replacements

摘要: Objective: To investigate the incidence, risk factors and clinical characteristics of periaortic VTs after AVR. Background: The region is origin some ventricular tachycardias (VTs) aortic valve replacement (AVR). However, AVR are yet to be clarified. Methods: We retrospectively analyzed courses 109 patients who had undergone surgical (SAVR) without other structural heart diseases between April 2009 Jun 2019 evaluated incidence SAVR. Results: Three (2.8%) developed average duration onset was 12.3±6.6 years. All arose from inferior axis; they included both left right bundle branch block configuration (LBBB RBBB). Two underwent cardiac magnetic resonance imaging; late gadolinium enhancement (LGE) observed in mid-layer ventricle basal anteroseptal wall cases. Patients with significantly wider interventricular septum, lower ejection fraction (LVEF), larger LV diameter at systole, higher positive rates signal-averaged ECG non-sustained on Holter. On ablation, local fragmented potentials low voltage zones were accordance distribution LGE. Multiple originating provoked sessions. Conclusions: Periaortic long not rare, arrhythmia stratification, including that by signal averaged electrocardiogram (SAECG), Holter, imaging (MRI) should considered.