Patients who have VT or VF successfully terminated by an ICD have an 80% 1-year survival rate but face increased risk of heart failure and nonsudden cardiac death, requiring close monitoring of left ventricular function.
Successful appropriate therapy by an ICD for VT or VF is associated with 80% survival at 1 year after arrhythmia termination. These patients are at increased risk for heart failure and nonsudden cardiac death after device termination of VT or VF and should receive special attention for the prevention and management of progressive left ventricular dysfunction during long-term follow-up.
Moss et al. (Tue,) studied this question.