A Multicenter Trial of a Shared DECision Support Intervention for Patients Offered Implantable Cardioverter-DEfibrillators

The investigators propose the DECIDE-ICD trial: a type II effectiveness implementation hybrid trial of the investigators ICD PtDAs. The Investigators will use a 6-site stepped-wedge design, with implementation guided by normalization process theory® and evaluation guided by the RE-AIM framework.

The investigators aim to evaluate reach and effectiveness of the ICD PtDAs using a pragmatic, stepped-wedge design on decision quality (knowledge and value-concordance) and psychosocial outcomes.

• Hypothesis 1a: PtDAs will reach over 50% of eligible patients.
• Hypothesis 1b: ICD PtDAs will be effective in improving decision quality in real-world practice.
• Hypothesis 1c: Better informed patients will have lower anxiety, higher rates of planning for the possibility of deactivation, and increased identification of a surrogate decision maker.

The investigators propose 3 a priori hypotheses:

• The decision aids will have a differential effect on the decisions of participants by age (>= 70 years old vs <70 years old);
• The decision aids will have a differential effect on the decisions of participants by heart failure type (non-ischemic vs ischemic);
• The decision aids will have a differential effect on the decisions of participants by the type of device they are considering (ICD vs ICD replacement vs CRT-D).

Along with these hypotheses, we recognize that other important covariates exist, such as health literacy and education level.