A preliminary study on predicting anastomotic occlusion in patients with cirrhosis underwent splenectomy combined with splenorenal shunt by ultrasonography

Abstract

To predict anastomotic occlusion after splenectomy combined with splenorenal shunt surgery by ultrasound technique. Methods: To retrospectively analyze 53 cases of splenectomy combined with splenorenal shunt surgery. We divided these patients into 2 groups: a patency group (n=39) and an occlusion group (n=14), which were based on the results of splenorenal venous anastomotic stoma with spiral CT. The statistical methods were used to analyze the ultrasound detection indicators (the internal diameter, blood flow velocity, blood flow volume, thrombosis and blood flow direction of portal vein, splenic vein, and superior mesenteric vein) for those 2 groups, and then to figure out the predictive factors that affect splenorenal venous anastomotic stoma. Results: Compared with the patency group, there are significant broadening of the portal vein diameter, narrowing of the splenic vein diameter, reduction of the splenic vein blood flow velocity, reduction of splenic venous flow volume, splenic vein thrombosis formation and changes of the splenic vein blood flow direction (all P<0.05). Conclusion: Ultrasound indicators of portal vein diameter broadening, splenic vein diameter narrowing, splenic vein blood flow velocity reduction, splenic venous flow volume reduction, splenic vein thrombosis formation and change of splenic vein blood flow direction are influential factors for the splenorenal anastomotic occlusion in patients after splenectomy combined with splenorenal shunt surgery.