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January 10, 2026Journal of Alzheimer s Disease

Impact of coronary interventions on dementia diagnosis by race: Insights from a multi-hospital heart-brain registry

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Why the study?

Racial and ethnic disparities have been reported with CAD and dementia/AD-related diagnoses, prompting investigation into disparities concerning coronary interventions and incident non-vascular and AD-related dementia diagnoses.

Does self-reported Black race increase the risk of incident non-vascular dementia and Alzheimer's disease-related diagnoses compared to White race among patients undergoing coronary interventions (PCI or CABG)?

Population

47,210 CAD patients who underwent PCI or CABG between 2010 and 2020

Comparison

PCI vs CABG, stratified by self-reported race

Design

Multi-site healthcare network registry-based cohort study

Follow-up

Median six years

Key result

Black patients with CABG have a 1.85-fold higher risk of non-vascular dementia compared to White patients, indicating significant racial disparities in dementia diagnoses.

Authors

ASAlaa SayedJZJianhui ZhuFTFloyd Thoma

Discussion

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Member takes

Overview

May warrant closer dementia surveillance after CABG in Black patients; leaves open mechanisms and whether disparities are modifiable.

Key Points

  • The study investigates how coronary interventions impact the diagnosis of non-vascular and Alzheimer's-related dementia among different races.
  • Analyzed data from a multi-hospital Heart-Brain registry
  • Included patients with coronary artery disease who underwent PCI or CABG
  • Followed patients for a median of six years to assess dementia incidence
  • Used multivariable adjusted Cox regression to determine associations by race
  • Black patients had a 26% higher risk of non-vascular dementia diagnosis compared to White patients (HR = 1.26)
  • In CABG patients, the risk of non-vascular dementia was significantly higher for Black patients (HR = 1.85)
  • AD-related diagnosis risk was also greater among Black CABG patients (HR = 1.73)

Structured PICO

Does self-reported Black race increase the risk of incident non-vascular dementia and Alzheimer's disease-related diagnoses compared to White race among patients undergoing coronary interventions (PCI or CABG)?

P
Population
47,210 patients with coronary artery disease (CAD) who underwent percutaneous coronary intervention (PCI) or coronary artery bypass graft (CABG) between 2010 and 2020 within a multi-site healthcare network in Western Pennsylvania.
I
Intervention
Black race (stratified by type of coronary intervention: CABG or PCI)
C
Comparator
White race (stratified by type of coronary intervention: CABG or PCI)
O
Outcome
Incidence of 'likely' non-vascular dementia, including Alzheimer's disease (AD)-related diagnosis, over a median follow-up of six yearshard clinical

Black patients undergoing CABG have a significantly higher risk of developing non-vascular dementia and Alzheimer's disease compared to White patients, highlighting a critical racial disparity in post-revascularization cognitive outcomes.

Cite This Study

Sayed et al. (2025) studied this question. Black patients with CABG have a 1.85-fold higher risk of non-vascular dementia compared to White patients, indicating significant racial disparities in dementia diagnoses.

synapsesocial.com/papers/6963221491e05aa366cb88b3https://doi.org/10.1177/13872877251409341
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