Non-ischemic scar underlines ventricular arrhythmias in Kearns-Sayre syndrome

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Stefano Figliozzi
Alessandro Zorzi *
Martina Perazzolo Marra
Alessandro Ruocco
Sabino Iliceto
Domenico Corrado
Chiara Calore
(*) Corresponding Author:
Alessandro Zorzi |


Kearns-Sayre syndrome (KSS) is a rare mitochondrial disease in which cardiac involvement has been associated with poor prognosis. Although the most common clinical manifestation is progressive conduction system impairment, patients can suffer from ventricular arrhythmias. Yet, they show a high prevalence of sudden cardiac death, whose etiopathological mechanism is not completely understood. Cardiac magnetic resonance is a rising tool to detect subclinical heart involvement in many heart diseases and was recently able to detect nonischemic scar, which is an arrhythmogenic substrate, in patients affected by KSS.

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