Cardiovascular and interventional radiology
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Cardiovasc Intervent Radiol · Sep 2007
Case ReportsStrategies for the management of SVC stent migration into the right atrium.
Stent migration into the right atrium is a potentially fatal complication of stenting in the venous system and is most likely to occur during the treatment of superior vena cava obstruction. Endovascular approaches that can salvage this hazardous situation are described and the keys to successful treatment are highlighted. ⋯ We conclude that prompt management of right atrial stent migration is essential and can be successfully achieved by a variety of "bale-out" techniques which are within the technical range of most interventional radiologists.
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Cardiovasc Intervent Radiol · Sep 2007
Comparative StudyPreoperative chemoembolization in patients with hepatocellular carcinoma undergoing liver transplantation: influence of emergent versus elective procedures on patient survival and tumor recurrence rate.
Our purpose was to compare the recurrence rate and survival in patients with hepatocellular carcinoma (HCC) who had elective transarterial chemoembolization (TACE), immediate preoperative TACE, or no treatment prior to orthotopic liver transplantation (OLT). A total of 132 patients with HCC had TACE prior to OLT. Eighteen patients had no TACE before OLT and functioned as a control group. ⋯ TACE within 24 h of OLT causes an average of 35% necrosis and elective TACE increases necrosis further to 77%. Despite this difference, the tumor recurrence rate in the three groups is equivalent and no different from that in the group that received no treatment before OLT. The decreased survival in the immediate and no-TACE groups was due to non-cancer-related deaths.
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Cardiovasc Intervent Radiol · Sep 2007
Case ReportsPercutaneous manual aspiration embolectomy of renal vein thrombosis due to acute pyelonephritis.
We report the case of a 50-year-old man who presented to our institution with septic thrombosis of the renal vein which had not resolved despite several days of antibiotic therapy. Optimal restoration of renal vein flow was obtained by percutaneous manual aspiration embolectomy (PMAE) in this patient with contraindication to fibrinolytic therapy and surgery.
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Cardiovasc Intervent Radiol · Sep 2007
Case ReportsEndovascular exclusion of an external carotid artery pseudoaneurysm using a covered stent.
Aneurysmal lesions of the external carotid artery are extremely rare. A case is presented of a 3.8 cm right external carotid artery pseudoaneurysm treated by transluminal exclusion using an endovascular stent-graft. Following stent-graft placement, complete occlusion of the aneurysmal sac and main vessel lumen patency was successfully demonstrated. This report demonstrates the technical feasibility of utilizing stent-grafts to treat aneurysmal lesions involving the external carotid artery.