Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: AnalyST & Brugada Syndrome - Feasibility Study
Brief Summary:
Brugada syndrome is characterized by a ST shift on the surface ECG, and a specific morphology of the Twave. This ECG abnormality is called a type 1-ECG, and is variable in time. Patients presenting a Brugada syndrome are exposed to sudden cardiac death, although it's difficult to predict patients at high risk. It is suspected that the type 1-ECG burden might be correlated to the ventricular fibrillation risk of these patients, but there is no mean to record the ECG over a long period of time.
The objective of the study is to evaluate the correlation between ST elevation on the electrocardiogram (ECG) and ST shift on the intracardiac electrograms (EGM) recorded with the AnalyST ICD, to assess the ability of the device to detect the type 1-ECG. Patients enrolled in the study are patients already implanted with a defibrillator for their Brugada syndrome. During an Ajmalin test, which unmasks the type 1-ECG, both intracardiac EGM and surface ECG will be compared to assess the detection of the typical ST-shift by the ICD.