Peut-on prédire le risque rythmique d'une syncope en cas de cardiopathie ou canalopathie ?

摘要

The prognosis of a patient with syncope depends on the underlying heart disease or a proven or suspected channelopathy. The guidelines ore helpful in assessing the arrhythmic risk of each pathological situation, sometimes with uncertainties that may require on implantable ECG monitor for a better evaluation of symptoms. In ischemic cardiomyopathy, current guidelines recommend to implant a defibrillator when the left ventricular ejection fraction is < 35In dilated cardiomyopathy guidelines are less certain. A risk score can be used in hypertrophic cardiomyopathy In channelopathies, apart from the long QT syndrome, the arrhythmic risk is more difficult to assess and may require the use of an ECG monitor to help with ECG diagnosis. Electrophysiological study is mostly unnecessary in risk stratification.