Objective To study the techniques and clinical applications of intra-vascular stenting in the treatment of superior vana cava obliteration syndrome (SVS). Methods In 9 cases of SVS, primary lesions were all confirme...Objective To study the techniques and clinical applications of intra-vascular stenting in the treatment of superior vana cava obliteration syndrome (SVS). Methods In 9 cases of SVS, primary lesions were all confirmed as malignancy (primary pulmonary carcinoma of right upper lobe) histolo-pathologically. By route of right femoral vein, SVS catheterization and DSA was made. The length of the strictures and the diameters of normal superior vana cavae (SVC) were measured for the choice of appropriate stents. The option of stemt diameter is 10% larger than that of normal SVCs. The upper and lower ends of the stent should be 1–2 cm protruding from the ends of the stricture. The stent was dilated with a balloon after its successful placement. Therapy of original lesions was continued together with anticoagulant. Stents were observed about their positions by fluoroscopy or chest films, and about patency of SVC by Doppler. Results After the placement of a stent, DSA revealed the contrast media in the SVCs passed along smoothly, diameters of SVCs almost normal, collateral branches diminished remarkably. Average SVC pressure was decreased from 26.4 cmH2O before the placement down to 15.7 cmH2O, with an obvious difference (P<0.01= by statistics. Related clinical symptoms and signs disappeared or relieved. Subsidised were swelling of head and neck, upper extremities and chest. Excretion of urine increased. Gorgeous superficial veins in the chest could not be detected any more. Conclusion The therapy of intra-vascular stenting to treat SVS is microinvasive, simple and effective. Key words superior vana cava syndrome - tumor - stent - image diagnosis - interventional therapy展开更多
文摘Objective To study the techniques and clinical applications of intra-vascular stenting in the treatment of superior vana cava obliteration syndrome (SVS). Methods In 9 cases of SVS, primary lesions were all confirmed as malignancy (primary pulmonary carcinoma of right upper lobe) histolo-pathologically. By route of right femoral vein, SVS catheterization and DSA was made. The length of the strictures and the diameters of normal superior vana cavae (SVC) were measured for the choice of appropriate stents. The option of stemt diameter is 10% larger than that of normal SVCs. The upper and lower ends of the stent should be 1–2 cm protruding from the ends of the stricture. The stent was dilated with a balloon after its successful placement. Therapy of original lesions was continued together with anticoagulant. Stents were observed about their positions by fluoroscopy or chest films, and about patency of SVC by Doppler. Results After the placement of a stent, DSA revealed the contrast media in the SVCs passed along smoothly, diameters of SVCs almost normal, collateral branches diminished remarkably. Average SVC pressure was decreased from 26.4 cmH2O before the placement down to 15.7 cmH2O, with an obvious difference (P<0.01= by statistics. Related clinical symptoms and signs disappeared or relieved. Subsidised were swelling of head and neck, upper extremities and chest. Excretion of urine increased. Gorgeous superficial veins in the chest could not be detected any more. Conclusion The therapy of intra-vascular stenting to treat SVS is microinvasive, simple and effective. Key words superior vana cava syndrome - tumor - stent - image diagnosis - interventional therapy
