Abstract：ObjectiveTo investigate the relationship between atrial caval shunting (ACS) curative effects for type Ⅱ Budd-Chiari syndrome (BCS) and hepatic venous outflow patency.MethodsTwo hundred and nine patients undergoing atrial caval shunting for type Ⅱ Budd-Chiari syndrome were retrospectively analyzed and divided into hepatic venous outflow patent group (group A) and stenotic group (group B).The preoperative and postoperative clinical symptoms were observed respectively.χ2test,t-test and Kaplan-Meier test were used to analyze the changes of portal free pressure (PFP) and inferior vena cava pressure (IVCP) before and after artificial blood vessels (ABV) opening,incidence of significant postoperative complications and ABV patency rates.ResultsThe clinical symptoms of one hundred and eighty-three BCS patients were disappeared or alleviated.Severe complications occurred in six cases,with one case died from pulmonary embolism.The PFP reduction of group A was significantly lower than that of group B［（2.09±0.33）kPa,（2.97±0.41）kPa；（t=15.48，P＜0.05）］，and portal hypertension syndromes in group A alleviated more greatly than that of group B.ABV patency was 80.0% for five years after surgery and group A was superior to group B(χ2=9.32，P＜0.05).ConclusionsACS treatment for hepatic venous outflow in patent with type Ⅱ BCS patients could decrease PFP and IVCP simultaneously,with lower postoperative complications and higher ABV patency rates.
