Virtual Reality and Computerized Cognitive Intervention for Mild Cognitive Impairment in Heart Failure

Heart failure (HF) and mild cognitive impairment (MCI) are prevalent among older adults in the U.S. Patients with HF are twice as likely to have MCI than people without HF. Cognitive impairment in HF is associated with significant decline in one's ability to take care of one's self and higher 12-month mortality. A small number of cognitive interventions have demonstrated preliminary efficacy in improving cognitive function in HF. However, this work suffers from some major limitations: 1) lack of focus on patients who already have cognitive impairments and at higher risk of dementia; 2) focus on single-component interventions; 3) lack of evaluation of responsiveness variables including genetic biomarkers; and 4) lack of long-term follow-up. Dr. Miyeon Jung, PhD, RN proposes to address this gap by conducting a randomized controlled pilot trial to estimate the preliminary efficacy of a virtual reality-based cognitive restoration (Vita) combined with a computerized cognitive training intervention (Com) relative to each intervention alone and standard of care among 172 older HF patients with MCI. The Specific aims of the project are to estimate the effects of the Vita and Com interventions individually and in combination to improve: 1) attention and memory (Aim 1); 2) HF self-care, instrumental activities of daily living, and health-related quality of life (Aim 2); and 3) dementia free survival (Aim 3) over 1 year. An exploratory aim is to examine moderating factors that may influence intervention efficacy (i.e., baseline cognitive function, depressive symptoms, HF severity, and presence of apolipoprotein E ε4 and BDNF Met allele).

We will use a two-step process to screen and enroll the patients. First, we will screen potentially eligible patients from the Indiana University Health systems using these eligibility criteria.

Inclusion criteria

• ≥ 55 years;
• chronic HF Stage C validated from echocardiography or comparable measure or B-type natriuretic peptide (BNP) level > 400 pg/ml [or equivalent NT-proBNP] in past 3 years;
• ability to communicate in English;
• capacity to consent according to the Indiana University Institutional Review Board policies, or lacks capacity to consent but has the ability to provide assent from someone who can serve as LAR; and
• Subjectively reported cognitive concern assessed by the question, "Do you have any trouble with your memory or thinking?".

Exclusion criteria

• pre-HF (Stages A and B) or advanced HF (Stage D);
• vision or hearing problems that can interfere with cognitive testing;
• major neurological disorder (e.g., previously diagnosed dementia, Parkinson's disease, epilepsy, multiple sclerosis);
• major psychiatric disease (e.g., schizophrenia, bipolar disorder);
• life-threatening unstable illness other than HF (e.g., end-stage cancer); and
• users of regular computerized cognitive training or participants in cognitive training trials in the past year.

Second, we will enroll patients only if they have MCI or normal cognition by not meeting criteria for dementia.