Endovascular thrombectomy and repair of suprarenal inferior vena cava thrombosis: A case series.

Objectives: The objective of this study is to document the combined use of catheter-based thrombectomy/thrombolysis with endovascular repair of high-risk segments of the inferior vena cava in the setting of iatrogenic and traumatic injuries. While the use of endovascular techniques to treat caval thrombosis is well documented and often preferred due to its minimally invasive nature, there is still little literature that focuses on the nuances related to injury of high mortality areas of the IVC as a result of major trauma, transplant, and other surgical interventions.

Methods: An IRB-approved retrospective review of all patients undergoing IVC thrombectomy was performed at a single tertiary care academic center between January 2018 and July 2021.

Hybrid CT-angiography to facilitate lower extremity sharp venous recanalization: a novel approach to a common procedure.

Background: Post-thrombotic syndrome due to chronic venous occlusion is associated with high morbidity and healthcare costs. Sharp venous recanalization has been used with success when conventional techniques fail to cross the occlusion, permitting endovascular reconstruction with angioplasty and stenting. However, manipulation of a needle, especially in extra-anatomic locations, risks damage to adjacent structures, thus necessitating adequate imaging guidance.

Percutaneous treatment of IVC obstruction due to post-resection hepatic torsion associated with IVC thrombosis.

Background: Migration of the left hepatic lobe into the potential space following right lobe resection can result in torsion and hepatic venous outflow obstruction with compromised venous return from the IVC. If untreated, significant morbidity and mortality can develop.

Case Presentation: We report a case of a 29-year-old female with Lynch syndrome who underwent right lobe resection for a metastatic hepatic tumor.

Catheter-Directed Fibrinolysis of Submassive Pulmonary Embolism After IVC Filter Migration to Renal Veins.

A 76-year-old male presented with a submassive pulmonary embolism despite having an inferior vena cava (IVC) filter. Imaging demonstrated pulmonary artery emboli and a deep vein thrombosis in the left common femoral vein. Venography revealed the IVC filter with struts extending into the left and right renal veins.

Indwelling and Retrieval Complications of Denali and Celect Infrarenal Vena Cava Filters.

Purpose: To compare indwelling and retrieval complications of Denali and Celect filters placed in the infrarenal inferior vena cava (IVC).

Materials And Methods: A retrospective study was conducted over 2 years at a single institution in which 171 Denali and 162 Celect filters were placed in 333 patients with a mean age of 62.3 years ± 15.

Evaluation and treatment of suspected type II endoleaks in patients with enlarging abdominal aortic aneurysms.

Purpose: To evaluate angiographic diagnosis and embolotherapy of patients with enlarging abdominal aortic aneurysms and computed tomographic (CT) diagnosis of type II endoleak.

Materials And Methods: A retrospective review was performed of all patients referred to a single vascular and interventional radiology section from January 1, 2003, to June 1, 2011, with a diagnosis of enlarging aneurysm and type II endoleak. Twenty-five patients underwent 40 procedures between 12 and 82 months after endograft insertion (mean, 48 mo) for diagnosis and/or treatment of endoleaks.

Iatrogenic portobiliary fistula treated by stent-graft placement.

Stent-graft exclusion of an ischemic, hilar portobiliary fistula after liver transplantation has not been reported. Isolated reports have described peripheral or nonischemic fistulas, and alternative treatment options have ranged from balloon tamponade to surgical repair. We present a unique case of a hilar portobiliary fistula successfully treated to resolution by unilateral placement of a stent-graft.

Embolization of postsurgical obturator artery pseudoaneurysm.

The anatomy of the obturator artery in the pelvis makes this vessel and its branches prone to iatrogenic injury during pelvic surgery. We present a postoperative obturator artery pseudoaneurysm treated by transcatheter embolization. Normal and variant obturator vascular anatomy, as well as pathology related to traumatic injury of this vessel, are subsequently discussed.

Percutaneous treatment of venous outflow obstruction in pediatric liver transplants.

Purpose: To evaluate the efficacy and safety of percutaneous dilation in the treatment of impaired venous outflow in pediatric patients with liver transplants.

Materials And Methods: Review was undertaken of the records of 35 procedures to dilate impaired venous outflow in 16 consecutive children (aged 11 days to 17.8 years; mean, 7.

Balloon dilatation of biliary-enteric strictures in children.

Objective: The objective of our study was to evaluate the efficacy and safety of balloon dilatation in the treatment of anastomotic strictures in children with liver transplants.

Materials And Methods: For a period of 7 years, we treated 20 consecutive biliary-enteric strictures in 19 children (age range, 13 months to 17.9 years, mean, 7.

Long-term venous complications after full-size and segmental pediatric liver transplantation.

Objective: To assess the long-term incidence of venous complications, including portal vein and hepatic vein stenoses, in both whole cadaveric and reduced-size cadaveric and living related liver transplants in a pediatric population, and to assess the therapeutic modalities in the treatment of these lesions.

Summary Background Data: A shortage in appropriate-sized liver grafts for pediatric patients led to the use of segmental liver grafts, which became the predominant graft used in 325 of 600 (54%) transplants at the authors' institution. To assess the long-term impact of this strategy, the authors examined the incidence of late (>90 days) venous complications and the efficacy of all therapeutic interventions.

Using pullback pressure measurements to identify venous stenoses persisting after successful angioplasty in failing hemodialysis grafts.

Objective: We used pullback pressure measurements to identify venous stenoses persisting after angioplasty of failing hemodialysis grafts.

Materials And Methods: Fifty angioplasty procedures were performed in 32 patients with elevated venous pressures at dialysis. Grafts were initially evaluated on digital subtraction angiography, and all stenoses measuring greater than 50% on angiography underwent angioplasty.