Role of High VWF and Low ADAMTS-13 in Ischemic Stroke

Aim: To measure levels of VWF and ADAMTS-13 in patients of ischemic stroke and healthy controls. Method: Blood samples of forty five patients and forty five controls of age 30-65 years were taken from medical or neurology wards of Lahore General Hospital. VWF antigen assay was determined by Immuno-Turbidimetric method and quantitative ADAMTS-13 antigen assay was measured by ELISA. Results: The mean level of plasma VWF antigen of controls was 114.0 +/- 49.7% and mean plasma level of VWF antigen in patients was 137.0 +/- 54.3%. The mean plasma VWF antigen level was significantly elevated among patients as compared to controls (p=0.011). The mean ADAMTS-13 antigen level of controls was 151.7 +/- 87.9 U/L and mean ADAMTS-13 antigen level of patients was 107.9 +/- 106.7 U/L. Our study also found that mean ADAMTS-13 was significantly lower in patients as compared to controls (p=0.018). Conclusion: In conclusion, Vwf and ADAMTS-13 antigen assays have an important role in pathogenesis of clot formation in patients of ischemic stroke.