Cardiac resynchronization therapy with a defibrillator in non‐ischemic and ischemic patients for primary and secondary prevention of sudden cardiac death: Analysis of the Japan cardiac device treatment registry database

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  FIGURE 1. Annual trend in CRT‐D/ICD implantation stratified by indication. The absolute number of primary and secondary prevention of sudden cardiac death is given by blue bar and orange bar for (A) CRT‐D and (B) ICD. The number of CRT‐P (A) and S‐ICD (B) implantation is also shown. Blue line indicates the proportion of primary prevention. Yellow and orange lines indicate the proportion of the primary and secondary prevention in non‐ischemic cardiomyopathy, respectively. Gray line indicates the proportion of CRT‐P implantation among all CRT devices (A) and S‐ICD implantation among all ICD devices (B). CRT‐D, cardiac resynchronization therapy with a defibrillator; CRT‐P, cardiac resynchronization therapy with a pacemaker; ICD, implantable cardioverter‐defibrillator; Non‐isch, non‐ischemic cardiomyopathy; Primary, primary prevention of sudden cardiac death; Secondary, secondary prevention of sudden cardiac death; S‐ICD, subcutaneous ICD.