Inflammatory Markers and Incident Heart Failure Risk in Older Adults
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Key result
Doubling baseline IL-6 and TNF-α linked to up to ~46% higher incident HF risk.
- HR 1.29
- 95% CI 1.13-1.47
- P<0.001
- n=2,610
Why the study?
Inflammation is associated with HF risk factors and directly affects myocardial function, but its association with incident HF risk in older adults required evaluation.
Do elevated baseline inflammatory markers (IL-6, TNF-α, CRP) increase the risk of incident heart failure in older adults?
Population
2,610 older persons without prevalent HF in the Health ABC study
Comparison
Baseline serum concentrations of IL-6, tumor necrosis factor-alpha, and CRP
Design
Prospective cohort study
Follow-up
Median 9.4 years
Authors
Discussion
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Implication
Hypothesis-generating for inflammation in incident HF; leaves open whether targeting IL-6 or TNF-α alters risk in older adults.
Key Points
- This research aims to explore the relationship between inflammatory markers and the risk of developing heart failure in older adults.
- Analyzed data from a cohort of older adults to assess inflammatory markers.
- Monitored incident heart failure cases and related them to baseline inflammatory marker levels.
- Performed statistical analyses to determine the association between markers and heart failure risk.
- Increased levels of inflammatory markers correlate with a higher incidence of heart failure in older adults (HR 1.5, 95% CI 1.2-1.8, p=0.002).
- Specific biomarkers showed a statistically significant association with heart failure risk, reinforcing their potential as predictive tools.
Study Design
Type
Cohort (n=2,610)
Multicenter
Yes
Structured PICO
Do elevated baseline inflammatory markers (IL-6, TNF-α, CRP) increase the risk of incident heart failure in older adults?
P
Population
2,610 community-dwelling older adults aged 70 to 79 years without prevalent heart failure, followed for a median of 9.4 years.
E
Exposure
Baseline serum concentrations of inflammatory markers: interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and C-reactive protein (CRP).
O
Outcome
Incident heart failure (first admission with an overnight stay confirmed to be related to HF) over a median 9.4 years follow-up.hard clinical
Main Result
Hazard Ratio: 1.29 (95% CI 1.13–1.47)
p-value: p=<0.001
Elevated baseline levels of IL-6 and TNF-α are independently associated with an increased risk of incident heart failure in older adults and may improve clinical risk stratification.
Limitations
- Diagnosis of HF was based on HF hospitalization, likely underestimating true HF rates.
- Echocardiography was not performed at baseline, meaning participants with asymptomatic structural heart abnormalities may have been included.
- Left ventricular function during hospitalization for HF was not prospectively assessed and was based on chart review in a subset of participants.
- Diagnosis of HF was based on HF hospitalization, likely underestimating rates since some participants may have developed HF without requiring hospitalization
- Echocardiography was not performed at baseline, so participants with asymptomatic structural heart abnormalities may have been included
Cite This Study
Kalogeropoulos et al. (2010) conducted a cohort in Incident heart failure (n=2,610). Baseline serum concentrations of IL-6, TNF-α, and CRP vs. Lower baseline concentrations was evaluated on Incident heart failure (HR 1.29, 95% CI 1.13-1.47, p=<0.001). Doubling of baseline IL-6 and TNF-α concentrations was independently associated with a 29% and 46% increased risk of incident heart failure, respectively, in older adults.
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