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Published on: January 28, 2020
Inflammatory activity increases with haemoglobin A1c in patients with acute coronary syndrome
Carl Gunnar Gustavsson1, Carl-David Agardh
1Department of Clinical Sciences, Lund University, Malmö, Sweden. cg@gustavsson.se
Insights
Inflammation markers correlate with HbA1c in acute coronary syndrome (ACS) patients. This association is stronger in diabetic patients and those with elevated HbA1c, indicating increased inflammatory activity.
Area of Science:
- Cardiology
- Endocrinology
- Clinical Chemistry
Background:
- Acute coronary syndrome (ACS) is associated with heightened inflammatory processes.
- Diabetes mellitus and elevated hemoglobin A1c (HbA1c) are known risk factors for cardiovascular disease.
- The interplay between inflammation, diabetes, and ACS requires further elucidation.
Purpose of the Study:
- To investigate the relationship between inflammatory markers and HbA1c levels in patients diagnosed with ACS.
- To compare inflammatory profiles in ACS patients with and without diabetes.
- To determine the independent association of inflammation with HbA1c in ACS patients.
Main Methods:
- A single-centre cross-sectional study included 688 ACS patients and 341 stable coronary artery disease (SCAD) patients.
- Inflammatory markers measured included high-sensitive C-reactive protein (hsCRP), albumin, fibrinogen, erythrocyte sedimentation rate (ESR), and leukocyte count.
- Multivariate analyses were performed to assess independent associations.
Main Results:
- ACS patients exhibited higher hsCRP, fibrinogen, and ESR, and lower albumin compared to SCAD patients.
- In ACS patients, elevated ESR, lower albumin, and borderline higher hsCRP were observed in those with diabetes.
- All measured inflammatory markers were significantly associated with HbA1c in all ACS patients and in non-diabetic ACS patients with normal HbA1c.
Conclusions:
- Patients with ACS demonstrate increased inflammatory activity.
- Inflammatory activity escalates with rising HbA1c levels, even in non-diabetic individuals.
- The presence of diabetes further exacerbates inflammation in ACS patients.
Objective:
To study the relationship between inflammation, diabetes and HbA(1)c levels in patients with acute coronary syndrome (ACS).
Design:
Single-centre cross-sectional study comprising 688 consecutive patients with ACS (108 with diabetes) and 341 with stable coronary artery disease (SCAD) (51 with diabetes). High-sensitive C-reactive protein (hsCRP), albumin and fibrinogen concentrations, erythrocyte sedimentation rates (ESR) and leukocyte counts were measured.
Results:
hsCRP, fibrinogen and ESR levels were higher and albumin lower in ACS patients. ESR was higher, albumin lower and hsCRP borderline significantly higher (p=0.053) in ACS patient with diabetes compared to those without. All inflammatory markers were associated with HbA(1)c in all 688 ACS patients as well as in 540 non-diabetic ACS patients with normal HbA(1)c. In multivariate analyses, all inflammatory markers were independently associated with HbA(1)c in the entire ACS group, regardless of diabetes being present or not. When non-diabetic ACS patients were analyzed separately, only ESR and leukocyte counts were independently correlated with HbA(1)c.
Conclusions:
Patients with ACS had increased inflammatory activity, which increased with HbA(1)c levels in patients who neither had a history of diabetes nor HbA(1)c above normal, and was further exaggerated in the presence of diabetes.
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