title: Equality of the left and right renal venous flow predicts the severity of variceal bleeding in portal hypertensive children.
abstract: Portasystemic collaterals develop as a result of portal hypertension. The collaterals in the cardioesophageal region is the leading cause of bleeding from esophageal varices. Some of the portal hypertensive patients present with bleeding episodes but the others do not, and some of the bleeders do not respond to endoscopic sclerotherapy procedure, although the underlying pathology is the same. The capacity of the natural collateral vessels might be a determining factor about the hemorrhagic events. Since the first step of portasystemic collateralization takes place in the naturally existent vascular channels, the present study, with its anatomic and clinical parts, was focused on these venous structures.
authors.affiliation: Department of Pediatric Surgery, Istanbul University, Istanbul, Turkey. ofsenyuz@hotmail.com
authors.forename: Osman Faruk
authors.initials: OF
authors.lastname: Senyuz
authors.forename: Ebru
authors.initials: E
authors.lastname: Yesildag
authors.forename: Sebuh
authors.initials: S
authors.lastname: Kuruoglu
authors.forename: Pervin
authors.initials: P
authors.lastname: Bozkurt
authors.forename: Mehmet
authors.initials: M
authors.lastname: Yildirim
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002102:Cadaver; D002675:Child, Preschool; D003097:Collateral Circulation / Q000502:physiology; D004932:Esophageal and Gastric Varices / Q000209:etiology / Q000503:physiopathology*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology / Q000503:physiopathology*; D006801:Humans; D006975:Hypertension, Portal / Q000150:complications / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012079:Renal Circulation / Q000502:physiology*; D012082:Renal Veins / Q000000981:diagnostic imaging / Q000503:physiopathology; D012720:Severity of Illness Index; D018615:Ultrasonography, Doppler, Color