Overview
The patients who undergo ICD(implantable cardioverter defibrillator) implantation for the primary prevention of sudden cardiac death with severe LV(left ventricle) dysfunction (ejection fraction ≤ 40%) by ICM(idiopathic cardiomyopathy).
Indications for ICD implantation for primary prevention in accordance with 2016 revised Korean indication guideline on ICD implantation
- FU LVEF(Left Ventricular Ejection Fraction) ≤ 30% (at least 40 days post-myocardial infarction)
- FU LVEF 31~35%, NYHA(the New York Heart Association) class II, III (at least 40 days post-myocardial infarction)
- FU LVEF ≤ 40%, NSVT(non-sustained ventricular tachycardia) (Holter), inducible VF(ventricular flutter) or sustained VT(ventricular tachycardia) at electrophysiological study (at least 40 days post-myocardial infarction)
Eligibility
Inclusion Criteria:
- Age 18-80 years
- Patients eligible for the indications for ICD implantation for primary prevention indication in accordance with 2016 revised Korean indication guideline on ICD implantation
- Patients should be managed by non-EP physician
- Patients who are willing to sign the informed consent
- Patients who are willing to receive the implantation and post-operative follow-up
Exclusion Criteria:
- Malignant tumor
- Life expectancy < 12 months
- Patients unable or unwilling to cooperate in the study procedures