Related Experiment Video
Updated: Oct 25, 2025

Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay
Published on: September 9, 2012
Coagulation Factor Activity and Hemostatic Markers of Endothelial Dysfunction in Patients with Peripheral Arterial
Roman E Kalinin1, Igor A Suchkov1, Nina D Mzhavanadze1
1Department of Cardiovascular, Endovascular, Operative Surgery, and Topographic Anatomy, Ryazan State Medical University, Ryazan, Russia.
Insights
Patients with advanced peripheral arterial disease (PAD) show increased clotting factors. Revascularization procedures further elevate these factors, linking them to complications like graft thrombosis and myocardial infarction.
Area of Science:
- Vascular Medicine
- Hematology
- Cardiovascular Research
Background:
- Peripheral arterial disease (PAD) is a significant cardiovascular condition.
- Endothelial dysfunction and hypercoagulability are implicated in PAD progression and complications.
Purpose of the Study:
- To assess the impact of intrinsic coagulation factors and endothelial dysfunction markers on PAD complications.
- To investigate the relationship between specific coagulation factors (FVIII, FIX, FXI) and hemostatic markers (vWF, sEPCR, PAI-1) with PAD outcomes.
Main Methods:
- Prospective study of 120 PAD patients (Fontaine stages 2b-3) undergoing various treatments.
- Measurement of coagulation factors (FVIII, FIX, FXI) and endothelial hemostatic markers (vWF, sEPCR, PAI-1).
Main Results:
- Open and endovascular revascularization significantly increased FVIII, FIX, and FXI activities.
- Increased FVIII activity correlated with bypass graft thrombosis.
- Elevated vWF activity was associated with myocardial infarction and restenosis.
- Increased PAI-1 levels linked to PAD progression in conservative treatment group.
Conclusions:
- Advanced PAD patients exhibit a hypercoagulable state.
- Revascularization exacerbates hypercoagulability.
- Coagulation factors and endothelial markers are predictive of PAD complications like thrombosis, MI, restenosis, and progression.
Purpose:
We aimed to evaluate the impact of intrinsic coagulation factors and hemostatic markers of endothelial dysfunction on complications in patients with atherosclerotic peripheral arterial disease (PAD).
Materials And Methods:
This prospective study enrolled 120 PAD patients at Fontaine stages 2b to 3 who underwent open surgical, endovascular, or conservative treatment. Coagulation factors (FVIII, FIX, and FXI) and endothelial hemostatic markers, including von Willebrand factor (vWF) activity and level, soluble endothelial protein C receptor, and plasminogen activator inhibitor-1 (PAI-1) levels, were assessed.
Results:
At 3 months after open bypass grafting, activity of FVIII significantly increased from a median of 175% to 233% (P<0.001). At 3 months after endovascular treatment, the activities of FVIII, FIX, and FXI significantly increased from medians of 157%, 180%, and 156% to 184%, 218%, and 181%, respectively (P<0.05). Six patients with increased FVIII activity developed bypass graft thrombosis. Four patients in the endovascular group and three patients in the conservative treatment group with increased activity of vWF developed myocardial infarction (P=0.049). The subjects who developed restenosis had increased vWF activity (P=0.023) and decreased nitric oxide metabolite levels (P=0.003). Three subjects who received conservative treatment and developed PAD progression at 12 months had increased PAI-1 activity (P=0.028).
Conclusion:
Patients with advanced PAD had a hypercoagulable status, and performance of open or endovascular revascularization was associated with further hypercoagulability. Increased activity of coagulation factors and altered levels of hemostatic markers of endothelial dysfunction were associated with PAD complications such as graft thrombosis, myocardial infarction, disease progression, and restenosis.
Related Concept Videos
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
Peripheral Artery Disease I: Introduction
Coagulation
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
Peripheral Artery Disease III: Interprofessional Care

