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Value of D-dimer and C reactive protein in predicting inhospital death in acute aortic dissection
Dan Wen1, Xin Du, Jian-Zeng Dong
1Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung & Blood Vessel Diseases, Beijing 100029, China.
Insights
Elevated D-dimer and C-reactive protein (CRP) levels are key predictors of in-hospital death in patients with acute aortic dissection (AD). Type A AD also independently predicts mortality, highlighting these factors for risk stratification.
Area of Science:
- Cardiovascular Medicine
- Biomarkers in Critical Care
- Aortic Diseases
Background:
- Acute aortic dissection (AD) is a life-threatening condition with significant in-hospital mortality.
- Identifying reliable predictors of mortality is crucial for timely intervention and improved patient outcomes.
Purpose of the Study:
- To evaluate the predictive role of D-dimer and C-reactive protein (CRP) levels in determining in-hospital death among patients diagnosed with acute AD.
- To assess the association of these biomarkers with mortality risk in acute aortic dissection.
Main Methods:
- A single-center prospective study was conducted at a university hospital in China.
- 114 patients diagnosed with acute AD were enrolled.
- Admission levels of D-dimer and CRP were measured and analyzed for their association with in-hospital mortality.
Main Results:
- Patients who died in-hospital exhibited significantly higher plasma D-dimer, CRP levels, and aortic diameter compared to survivors.
- Plasma D-dimer concentrations were positively correlated with CRP levels and aortic diameter, and negatively with AD type and time from onset.
- D-dimer (≥5.67 μg/mL) and CRP (≥11.21 mg/L) demonstrated high sensitivity and specificity in predicting in-hospital death.
Conclusions:
- Elevated D-dimer and CRP levels, along with Type A acute AD, are independently associated with increased in-hospital mortality.
- These biomarkers serve as important risk factors for predicting adverse outcomes in acute aortic dissection.
Objective:
To evaluate the role of D-dimer and C reactive protein (CRP) in predicting inhospital death in acute aortic dissection (AD).
Design:
A single-centre prospective study.
Setting:
University hospital in China.
Patients:
114 patients with acute AD.
Intervention:
Admission D-dimer and CRP concentrations were assayed.
Main Outcome Measures:
To observe the association of D-dimer and CRP with inhospital death.
Results:
Increased levels of plasma D-dimer (9.84±3.53 vs. 4.28±1.99, P < 0.001), CRP (14.08±2.81 vs. 11.18±1.85, P < 0.001) and aortic diameter (45.2±9.5 vs. 40.3±6.0, p = 0.007) were found in dead patients compared with those survived. Moreover, plasma D-dimer concentrations in type A were higher than that in type B (6.51±4.11 vs. 4.87±2.29, p = 0.013). Plasma D-dimer concentrations had positive correlations with CRP levels (r=0.527, P < 0.001) and aortic diameter (r=0.227, p = 0.015), and had negative correlations with the type of AD (r=-0.232, p = 0.013) and the time from onset (r=-0.264, p = 0.005). D-dimer and CRP levels and the type of AD were strongly associated with inhospital mortality. The OR and 95% CI were 3.272, 1.638 to 6.535; 2.322, 1.134 to 4.757; and 0.126, 0.019 to 0.853, respectively. Furthermore, the sensitivity and specificity of D-dimer ≥5.67 μg/mL in predicting inhospital death in acute AD were 90.3% and 75.9% (95% CI 0.85 to 0.96), respectively. Moreover, the sensitivity and specificity of CRP levels ≥11.21 mg/L were 100% and 54.2%, respectively (95% CI 0.74 to 0.89).
Conclusions:
D-dimer ≥5.67 μg/mL, CRP ≥11.21 mg/L and type A acute AD were important risk factors and independently associated with acute AD inhospital death.
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