Are heart abnormalities linked to SUDEP?

Going back to 2010, this study of mice linked possible gene defects to a predisopition with epilepsy, and if I understand it correctly, "potassium flows".  Well, I do not pretend to be  scientist, but fortunately for those with epilepsy the Dana Foundation focuses on everything cerebral.  The subject then pertains to SUDEP because of disruption of the heart.  And, as we know, when SUDEP occurs often it is because of heart failure.  Read more at New Clues to Causes of Epileptic ‘Sudden Death’ Syndrome - Dana Foundation