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Comparative Study
. 2004 Mar;90(3):264-9.
doi: 10.1136/hrt.2002.007443.

Prognostic relations between inflammatory markers and mortality in diabetic patients with non-ST elevation acute coronary syndrome

P L Sanchez  1 , J L Morinigo, P Pabon, F Martin, I Piedra, I F Palacios, C Martin-Luengo
Affiliations
Comparative Study

Prognostic relations between inflammatory markers and mortality in diabetic patients with non-ST elevation acute coronary syndrome

P L Sanchez et al. Heart. 2004 Mar.

Abstract

Objective: To determine the differences in the inflammatory status between diabetic and non-diabetic patients and to evaluate the usefulness of C reactive protein, fibrinogen, and leucocyte count as predictors of death in diabetic patients with unstable coronary disease.

Design: Nested case-control comparisons of the inflammatory status between diabetic and non-diabetic patients. Prospective cohort analysis of C reactive protein concentration, fibrinogen concentration, and leucocyte count as predictors of cardiovascular death in diabetic patients.

Setting: Coronary care unit in Spain.

Participants: 83 diabetic patients with non-ST elevation acute coronary syndrome and 83 sex and aged matched patients selected from 361 non-diabetic patients with non-ST elevation acute coronary syndrome.

Main outcome measures: Plasma concentrations of C reactive protein and fibrinogen, and leucocyte count. Investigators contacted patients to assess clinical events.

Results: Concentrations of C reactive protein and fibrinogen, and leucocyte count on admission were higher in diabetic than in non-diabetic patients (7 mg/l v 5 mg/l, p = 0.020; 3.34 g/l v 2.90 g/l, p = 0.013; and 8.8 x 10(9)/l v 7.8 x 10(9)/l, p = 0.040). Among diabetic patients, these values were also higher in those who died during the 22 month follow up (13 mg/l v 6 mg/l, p = 0.001; 3.95 g/l v 3.05 g/l, p < 0.001; and 11.4 x 10(9)/l v 8.4 x 10(9)/l, p = 0.005). After adjustment for confounding factors, diabetic patients in the highest tertile of C reactive protein had a hazard ratio for cardiovascular death of 4.51 (95% confidence interval (CI) 1.62 to 12.55). Similar hazard ratios were for fibrinogen 3.74 (95% CI 1.32 to 10.62) and for leucocyte count 3.64 (95% CI 1.37 to 9.68).

Conclusions: Inflammation appears more evident in diabetic than in non-diabetic patients with acute coronary syndrome. C reactive protein concentration, fibrinogen concentration, and leucocyte count constitute independent predictors of cardiovascular death in diabetics with unstable coronary disease.

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Figures

Figure 1
Figure 1
Kaplan-Meier survival estimates for diabetic patients divided into tertiles according to (A) C reactive protein concentrations, (B) fibrinogen concentrations, and (C) leucocyte count on admission.
Figure 2
Figure 2
Cardiovascular death hazard ratios in diabetic patients based on the number of increased inflammatory markers.
See this image and copyright information in PMC

References

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