Influence of the inversion of the portal/splenic vein diameter in the results of the surgical treatment of schistossomotic portal hypertension.

Objective: To evaluate the morbidity and mortality in surgical treatment of schistosomal portal hypertension in patients with inversion of the Portal/Splenic Vein diameter ratio.

Methods: We conducted a retrospective cross-sectional study of patients undergoing surgical treatment of portal hypertension in the period between September 1993 and January 2004. The study population was divided into two groups: a) Inversion--splenic vein diameter greater than or equal to portal vein's--and b) control group (portal vein diameter greater than the splenic vein's).