Management of symptomat- ic VA in the early period after CABG follows the recom- mendations for acute and ongoing management of VT detailed elsewhere in this document. In patients without sustained VT or VF but with LV dysfunction prior to un- dergoing CABG, implantation of an ICD did not improve For patients with LV dysfunction who are undergoing revascularization, there is a possibility that the LV function may improve, so many advocate for re- assessment of the LV function 3 months after revascu- larization before a decision about ICD implantation is For patients with a high burden of NSVT and reduced LVEF, an electrophysiological study may be helpful for risk stratification; those with inducible sus- tained VT may benefit from an ICD.S7.1.1.2-6 The wearable cardioverter-defibrillator may play a role in patients at risk of SCD in the early phase after revascularization to allow time for recovery of ventricular function.S7.1.1.2-7 7.1.2. Primary Prevention of SCD in Patients With Ischemic Heart Disease Recommendations for Primary Prevention of SCD in Patients With Ischemic Heart Disease References that support the recommendations are summarized in Online Data Supplement 21. 