Summary: A large new study finds that heart failure is linked to accelerated cognitive decline, with affected individuals showing the mental equivalent of ten years of aging within seven years of diagnosis. Researchers followed nearly 30,000 adults and observed a sharp drop in cognitive performance at the time heart failure was diagnosed, followed by more rapid declines over time in global cognition and executive function.
These changes were seen even after accounting for common cardiovascular risk factors such as high blood pressure and prior heart attack. The results highlight the importance of routine cognitive assessment, clear patient-centered communication, and care plans tailored to cognitive capacity for people living with heart failure.
Key facts
- Rapid mental aging: People with heart failure showed the equivalent of 10 years of mental aging within seven years after diagnosis.
- Earlier decline: Global cognitive decline reached meaningful thresholds nearly six years earlier in adults with heart failure compared with those without it.
- Care complexity: Declines in cognition and executive function can reduce a patient’s ability to manage complex medication regimens and symptom monitoring.
Source: University of Michigan
Overview
More than six million Americans live with heart failure, and new evidence suggests this condition substantially increases the risk of earlier cognitive decline. The multicenter research team led by Michigan Medicine tracked cognitive performance in 29,614 adults drawn from six U.S. population-based studies spanning 1971 to 2019. Participants were free of heart failure, stroke, or dementia at baseline, and investigators compared cognitive trajectories between those who developed heart failure and those who did not.
The study found that an incident heart failure diagnosis was associated with an immediate reduction in global cognition and executive functioning. Over follow-up, people with heart failure experienced a faster, persistent decline in these domains. Memory showed a similar downward trend, though the initial change in memory did not reach statistical significance.
Global cognition in this study was measured as a composite that reflects attention, problem solving, and related abilities. Executive function refers to skills needed for planning, organizing, decision-making, and managing daily tasks—abilities that are especially important for following complex medical regimens.
Who was most affected
The largest declines in global cognition following heart failure were especially apparent among older adults, women, and White participants. On average, people diagnosed with heart failure reached a threshold for meaningful decline in global cognition nearly six years earlier than peers without heart failure; executive functioning declined about four and a half years earlier.
Clinical implications
Heart failure is a chronic condition requiring patients to adhere to detailed instructions, monitor symptoms, and manage multiple medications. The observed cognitive decline has direct clinical implications: reduced cognitive and executive capacity can make adherence more difficult, complicate shared decision-making, and increase the need for caregiver involvement and supportive services.
Authors recommend routine cognitive monitoring for older adults with heart failure to identify those with early decline and to implement appropriate supports. They also emphasize the need for patient-centered, plain-language conversations about prognosis, treatment options, and goals of care early and repeatedly during the course of illness.
Qualitative work by the same team found that many patients with heart failure do not fully understand their prognosis, while care partners are often more aware of functional decline. Some patients reported that clinicians avoided frank discussions or used medical jargon that was hard to follow; given the rate of cognitive decline observed, clear and compassionate communication is essential.
Research and next steps
Study authors stress the need to better understand biological and social mechanisms that drive accelerated cognitive decline after heart failure so that targeted interventions can be developed to slow or prevent deterioration. Potential directions include studies of cerebral blood flow, inflammation, medication effects, comorbid conditions, and the role of caregiving and social support in preserving cognitive function.
Authors and funding
Lead authors include Supriya Shore, MBBS, MSCS, and Deborah A. Levine, M.D., M.P.H., along with Hanyu Li, M.S.; Min Zhang, Ph.D.; Rachael Whitney, Ph.D.; Brahmajee K. Nallamothu, M.D., M.P.H.; Bruno Giordani, Ph.D.; Emily M. Briceño, Ph.D.; Jeremy B. Sussman, M.D., M.S.; and others from the University of Michigan. See the published article for the full author list.
The project was supported by the National Institute of Neurological Disorders and Stroke (R01NS102715) and received additional support from the American Heart Association and the National Institute on Aging for individual investigators. The funding agencies did not control study design, data collection, analysis, interpretation, or the decision to publish. The content reflects the authors’ conclusions and not necessarily the official views of the funding bodies.
About this brain aging and cardiovascular health research news
Author: Noah Fromson, University of Michigan
Source: University of Michigan
Contact: Noah Fromson – University of Michigan
Image credit: Neuroscience News
Original research: “Trajectory of Cognitive Function After Incident Heart Failure” by Supriya Shore et al., published in Circulation: Heart Failure. The study is open access and reports pooled cohort analyses assessing cognitive change after incident heart failure while accounting for preexisting cognitive trends and known determinants of cognition.
Abstract
Trajectory of Cognitive Function After Incident Heart Failure
BACKGROUND:
The magnitude of cognitive changes after incident heart failure (HF) is not well understood. This study evaluates whether an incident HF diagnosis is associated with changes in cognition after accounting for pre-HF cognitive trajectories and established determinants of cognition.
METHODS:
This pooled cohort study combined data from six U.S. population-based studies (1971–2019) and included adults without HF, stroke, or dementia at baseline. Linear mixed-effects models estimated cognitive change associated with incident HF and the subsequent rate of decline, controlling for pre-HF cognitive trajectories and participant characteristics. Outcomes were global cognition (primary), executive function, and memory (secondary), standardized to a t-score metric (mean 50, SD 10).
RESULTS:
The study included 29,614 adults (mean age 61 years, 55% female, 70% White). Over a median follow-up of 6.6 years, 1,407 participants (5%) developed incident HF. Incident HF was associated with initial decreases in global cognition (−1.1 points, 95% CI −1.4 to −0.8) and executive function (−0.6 points, 95% CI −1.0 to −0.3). Participants with incident HF experienced faster long-term declines in global cognition (−0.1 points per year, 95% CI −0.2 to −0.1) and executive function (−0.2 points per year, 95% CI −0.2 to −0.1). Memory showed a similar but not statistically significant pattern.
CONCLUSIONS:
Incident heart failure is associated with immediate declines in global cognition and executive function and with faster, persistent cognitive decline during follow-up. These findings support routine cognitive assessment and tailored, patient-centered care for people with heart failure.