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Investigating von Willebrand Factor Pathophysiology Using a Flow Chamber Model of von Willebrand Factor-platelet String Formation
Published on: August 14, 2017
[Von Willebrand factor, endothelial lesion, and ischemic heart disease]
B Virgós-Señor1, A Nebra-Puertas, M A Suárez-Pinilla
1Servicio de Medicina Intensiva, Hospital Universitario Miguel Servet, Zaragoza, España. beaagus@wanadoo.es
Insights
Patients with ischemic heart disease show elevated von Willebrand factor (FvW) levels, indicating endothelial damage. FvW levels increase post-coronary intervention, suggesting intervention-related endothelial aggression.
Area of Science:
- Cardiovascular Medicine
- Hematology
- Vascular Biology
Context:
- Ischemic heart disease (IHD) is a significant global health concern.
- Endothelial dysfunction plays a crucial role in IHD pathogenesis.
- von Willebrand factor (FvW) is a key marker of endothelial activation and damage.
Purpose:
- To investigate elevated von Willebrand factor (FvW) levels in patients with ischemic heart disease (IHD) compared to healthy controls.
- To assess the relationship between FvW levels and clinical recurrence or need for coronary intervention.
- To evaluate changes in FvW levels following coronary intervention procedures.
Summary:
- This observational study compared FvW levels in 75 IHD patients undergoing coronary intervention with 30 healthy controls.
- FvW levels were significantly higher in IHD patients (162%±74%) versus controls (95%±33%) (p=0.0001).
- FvW levels increased significantly post-intervention (162%±74% to 213%±90%, p=0.0001), suggesting intervention-induced endothelial aggression.
Impact:
- Findings suggest FvW is a sensitive indicator of endothelial alteration in IHD.
- The study highlights the impact of coronary intervention on endothelial function.
- Further research may explore FvW as a prognostic marker in IHD management.
Objective:
To analyze if the levels of von Willebrand factor (FvW) are higher in patients with ischemic heart disease than in healthy subjects and evaluate the relationship of these levels with clinical recurrence and coronary interventionism.
Design:
Observational prospective study.
Patients:
We analyzed the levels of FvW in 75 patients with ischemic heart disease who underwent coronary interventionism (Group I) and compared them with those of 30 healthy subjects with no cardiovascular risk factors and who, theoretically, had no coronary injuries (Group II).
Main Variables:
Levels of FvW before coronary interventionism (sample 0), 24 hours after (sample 1), and at three months of out-patient follow-up (sample 2). A single measurement was made of the FvW levels in Group II.
Results:
Subjects with ischemic heart disease had higher levels of FvW than healthy subjects (162+/-74% versus 95+/-33%; p=0.0001). FvW levels were significantly increased after coronary interventionism (162.4+/-74.9% in sample 0 versus 213+/-90% in sample 1; p=0.0001). Patients with clinical symptoms at three months have no significant difference regarding those with no symptoms in the FvW levels (125+/-63% versus 133+/-60%; p=0.57).
Conclusions:
FvW levels reflect an endothelial alteration in patients with ischemic heart disease. The increase of the levels after coronary interventionism could be due to the endothelial aggression itself of the intervention. It was not possible to demonstrate higher levels of FvW in patients with symptoms in the three month follow-up.
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