Ultrasonic demonstration of porto-caval anastomosis in portal hypertension in children.
Seventy-one children with portal hypertension and a portocaval anastomosis were studied by ultrasound. The patency of the shunt may be inferred when it directly visualised. There are four indirect signs of patency: (1) decrease of the thickness of the lesser omentum; (2) decrease of the gastro-oesophageal collaterals; (3) decrease of the portal vein size; and (4) increase of the diameter of the inferior vena cava, as compared to pre-operative ultrasound.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006083:Graft Occlusion, Vascular / Q000175:diagnosis; D006801:Humans; D006975:Hypertension, Portal / Q000175:diagnosis* / Q000601:surgery; D007223:Infant; D011167:Portacaval Shunt, Surgical; D014463:Ultrasonography