Stenting in malignant obstruction of inferior vena cava caused by hepatic carcinoma / 介入放射学杂志

ABSTRACT

Objective To evaluate the effectiveness of endovascular deployment of metallic Z-type self- expandable stents in treating the patients with inferior vena eava(IVC)obstruction caused by hepatic malignant tumour.Methods One hundred and fifty six patients with IVC obstruction due to malignant compression were enrolled.Venography was performed via femoral vein before and after metallic Z-type self-expandable stent deployment across the stenotic segment of IVC.The diameter of stenotic segment,collateral vessels,venous pressures and the scores of patients IVC syndrome were compared before and after stent placement.Results One hundred and seventy nine stents were implanted in 156 patients successfully.The average obstructive length of IVC was(6.1?2.2)cm.The pressure gradient of stenotie segments of IVC declined from(2.1?0.5)kPa to (0.5?0.11)kPa.The diameters of stenotic segment of IVC increased from(0.33?0.11 )cm to(1.6?0.4) cm.After operations,the main clinical symptoms and physical signs relieved quickly.During 2～24 month follow-up,the pateney of IVC stents reached 86.7%.Conclusion Endovascular deployment of metallic Z-type self-expandable stent is an effective palliative treatment for patients with malignant obstruction of IVC.