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The purpose of this observational registry is to collect clinical events and outcome data in 4 different study populations (cohorts), with a majority of Japanese subjects, that are at risk of sudden cardiac death (SCD) and heart failure (HF) events. These event rates will be compared with available published data mainly from Europe and the United States.
Selected Subject Cohorts:
The primary endpoint will report on the Composite rate of first appropriately treated ventricular arrhythmia (by anti-tachycardia pacing [ATP] or shock) or life-threatening symptoms associated to ventricular arrhythmia (defined as hemodynamic instability which requires treatment), whichever comes first under MADIT RIT Arm B or C programming conditions in a study population with a majority of Japanese subjects. This primary end point is assessed in the ICD/CRT-D implanted patient cohort.
The all-cause mortality in subjects with a maximum of 3 risk factors (analyzed for MADIT II data) will be assessed in the Pacing (PM/CRT-P) patient cohort.
The all-cause mortality will be assessed in the non-implanted subject cohort.
Enrollment
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Inclusion and exclusion criteria
General Inclusion Criteria:
Subject is aged 20 or above
Subject is willing and capable of providing informed consent
Subject is willing and capable of participating in all visits associated with this study at an approved clinical study site and at the intervals defined by this Clinical Investigation Plan (CIP)
Measured Ejection fraction value obtained by echocardiography or equivalent method as Standard of Care (SOC):
And 12 lead electrocardiogram (ECG) recording available as SOC:
General Exclusion Criteria:
Subject is enrolled in any other concurrent study without prior written approval from Boston Scientific (BSC), with the exception of local mandatory governmental registries and observational studies/registries that are not in conflict and do not affect the following:
Device implant revision is scheduled due to unstable result of an implant <45 days prior enrolment
Subjects with more than 5 of the following risk factors: LVEF <35%, NYHA Class III or IV, left bundle branch block (LBBB) with QRS > 130 ms or QRS ≥150 ms, renal dysfunction (chronically BUN >26 mg/dL / ≥9.28 mmol/L), diabetes type I and II, chronic atrial fibrillation (permanent or persistent according to ESC Guideline 2016), prior MI, age >70 years, smoking today or during last 5 years
Subjects with chronic renal disease with chronic BUN ≥50mg/dL or creatinine ≥2.5 mg/dL
Subjects with coronary artery bypass graft (CABG) surgery or percutaneous coronary intervention (PCI) within the past three calendar months prior to enrollment
Subjects with enzyme-positive myocardial infarction within the past three calendar months prior to enrollment
Subjects who are expected to survive for <1 year with good functional status
Subject's physician does not allow participation
Subject is not willing and capable of participating in all testing or visits associated with this clinical study at an approved clinical study center and at the intervals defined by this CIP
Unwilling to sign the consent for participation
Women of childbearing potential who are or might be pregnant at the time of study enrolment
ICD and CRT-D cohorts: implanted with a non-BSC device system. PM/CRT-P cohorts: implanted with a non-BSC pulse generator device.
Additional eligibility criteria apply to each cohort
354 participants in 4 patient groups
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Data sourced from clinicaltrials.gov
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