A study published on November 5, 2025, in Neurology®,the medical journal of the American Academy of Neurology, reveals that older adults who experience heart attacks may face significantly increased risk of developing epilepsy later in life.
The research followed 3,174 adults with an average age of 69 for up to 30 years, providing long-term insights into the connection between cardiovascular events and neurological conditions. While demonstrating a clear association, the study emphasizes that it does not establish causation between heart attacks and subsequent epilepsy.
Study Methodology and Participant Tracking
Researchers monitored a cohort of adults who had no history of stroke, heart attack, or epilepsy at the study’s inception. Over the three-decade follow-up period, 296 participants experienced heart attacks, 120 developed late-onset epilepsy (defined as epilepsy occurring after age 60), and 794 died from vascular causes other than stroke.
The comprehensive tracking allowed for detailed analysis of how cardiovascular events might influence neurological health outcomes in aging populations.
Quantitative Risk Assessment
The data revealed substantial differences in epilepsy incidence based on cardiovascular history:
- Heart attack group: 7 cases of epilepsy per 1,000 person-years
- No heart attack group: 2 cases of epilepsy per 1,000 person-years
After adjusting for factors including age, smoking status, and body weight, researchers determined that individuals who experienced heart attacks faced approximately double the risk of developing late-onset epilepsy compared to those without cardiovascular events.
Bidirectional Analysis and Mortality Findings
The research team also investigated whether the relationship worked in reverse—specifically, whether people with late-onset epilepsy had increased heart attack risk—but found no significant association in that direction.
However, the study uncovered striking mortality patterns: after developing epilepsy, individuals died from vascular causes (excluding stroke) at a rate of 99 deaths per 1,000 person-years, compared to 16 deaths per 1,000 person-years among those without epilepsy. This translated to nearly triple the risk of vascular-related mortality after accounting for confounding factors.
Clinical Implications and Preventive Strategies
“These findings highlight the interconnectedness of cardiovascular and brain health in aging populations,” stated the lead researcher.
“When older adults experience heart attacks, clinicians should maintain awareness about potential future seizure disorders.” The results suggest that enhanced monitoring and early intervention strategies might benefit patients recovering from cardiac events, particularly those with additional risk factors for neurological conditions.
Study Limitations and Research Context
The authors note that the relatively small number of participants developing both conditions represents a study limitation, making precise risk estimates challenging. Additionally, the observational nature of the research means that while it identifies a significant association, it cannot prove that heart attacks directly cause epilepsy.
The findings contribute to growing evidence about heart-brain connections and underscore the importance of integrated care approaches for aging patients with cardiovascular and neurological concerns.
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