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Microfluidics in Assessing Platelet Function
Published on: November 8, 2024
The PLAT Study: a multidisciplinary study of hemostatic function and conventional risk factors in vascular disease
M Cortellaro1, C Boschetti, E Cofrancesco
1Instituto di Medicina Interna, Milan University, Ospedale Policlinico, Italy.
Insights
Hemostatic factors like fibrinogen and FVIII:C are linked to conventional risk factors in ischemic disease. These factors may worsen outcomes in patients with atherothrombotic events.
Area of Science:
- Cardiovascular Medicine
- Hematology
- Epidemiology
Background:
- Ischemic diseases, including coronary, cerebral, and peripheral atherosclerotic conditions, pose significant health challenges.
- Understanding the interplay between hemostatic variables and conventional risk factors is crucial for managing atherothrombotic events.
Purpose of the Study:
- To investigate the relationship between hemostatic variables, traditional risk factors, and atherothrombotic complications in patients with ischemic disease.
- To explore how hemostatic factors might influence or amplify the impact of conventional risk factors.
Main Methods:
- A multidisciplinary, multicenter study involving 953 patients (≤69 years) with documented atherosclerotic disease.
- 24-month follow-up including laboratory assays (hemostasis, lipids), arterial Doppler, CT/MRI, exercise ECG, and coronary angiography.
Main Results:
- Fibrinogen showed positive correlations with antithrombin III and leukocytes, and negative correlation with HDL-cholesterol.
- Heavy smokers exhibited higher leukocyte counts, triglycerides, and lower HDL-cholesterol compared to non-smokers.
- Elevated FVIII:C, FVII, fibrinogen, and von Willebrand factor antigen (vWF:Ag) were observed in myocardial infarction survivors with cerebrovascular and peripheral vascular lesions.
Conclusions:
- Hemostatic factors appear to play a significant role in the development and progression of atherothrombotic ischemic events.
- These hemostatic variables may mediate or potentiate the effects of established risk factors, highlighting potential therapeutic targets.
Abstract:
In this paper are reported the basal results of a multidisciplinary, multicenter study designed to explore in a population with ischemic disease the relation between hemostatic variables, conventional risk factors and atherothrombotic sequelae. 953 patients less than or equal to 69 yrs with documented coronary, cerebral or peripheral atherosclerotic disease were studied and followed-up for 24 months. Examinations included hemostatic and lipid laboratory assays, arterial Doppler examination, cerebral computerized tomography and nuclear magnetic resonance, exercise electrocardiogram and coronary angiography. Fibrinogen (301.4 +/- 71.52 mg/dl) correlated positively with antithrombin III (r = 0.27) and leukocytes (r = 0.25), negatively with HDL-cholesterol (r = 0.18) and tended to increase with smoking. Heavy smokers had higher leukocyte counts than non-smokers (8.0 +/- 2.0 vs. 7.2 +/- 2.1 x 10(3)/microliters), higher triglycerides (1.87 +/- 1.12 vs. 1.53 +/- 1.35 mmol/l) and lower HDL-cholesterol (0.93 +/- 0.27 vs. 1.00 +/- 0.25 mmol/l). FVII correlated positively with triglycerides (r = 0.16) and protein C (r = 0.45). vWF:Ag (145.4 +/- 70.58%) ad FVII:C (139.7 +/- 59.10%) were positively correlated (r = 0.44). FVIII:C correlated positively with fibrinogen (r = 0.21). Myocardial infarction survivors with associated cerebral and peripheral vascular lesions had higher FVIII:C, FVII, fibronogen and vWF:Ag. These findings suggest that hemostatic factors may enhance and/or mediate the effects of conventional risk factors in atherothrombotic ischemic events.
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