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Background Ruptured esophageal varices (EVs) are a leading cause of death in Portal hypertension (PHT), it has been a big concern of research to screen EVs through non-invasive approaches. This study aimed to evaluate the role of plasma von Willebrand factor antigen (VWF-Ag) assay for early detection of EVs in patients with portal hypertension. This was a cross-sectional study, done on 47 portal hypertensive children and adolescents who were collected from the Pediatrics Hepatology Clinic, Children Hospital, Ain Shams University. All patients were subjected to comprehensive history taking, thorough clinical examination, routine investigations, abdominal ultrasound, upper GI endoscopy, and measurement of plasma VWF-Ag level. The patients were divided based on their endoscopic findings into two groups; a varices group which included 37 patients, and a non-varices group which included 10 patients. Results VWF-Ag rise significantly in patients with EVs, revealing a direct positive association with the degree of EVs. Conclusion The plasma VWF-Ag can be applied as a non-invasive evidence of the presence and grading of EVs.

Role of plasma von Willebrand factor antigen in prediction of esophageal varices in pediatric and adolescent patients with portal hypertension