Endovascular Treatment of Venous Outflow and Portal Venous Complications After Liver Transplantation.

Liver transplantation continues to rapidly evolve, and in 2020, 8906 orthotopic liver transplants were performed in the United States. As a technically complex surgery with multiple vascular anastomoses, stenosis and thrombosis of the venous anastomoses are among the recognized vascular complications. While rare, venous complications may be challenging to manage and can threaten the graft and the patient.

The evolution of performing a kidney biopsy: a single center experience comparing native and transplant kidney biopsies performed by interventional radiologists and nephrologists.

Background: Kidney biopsy is the most vital tool guiding a nephrologist in diagnosis and treatment of kidney disease. Over the last few years, we have seen an increasing number of kidney biopsies being performed by interventional radiologists. The goal of our study was to compare the adequacy and complication rates between kidney biopsies performed by interventional radiology versus nephrology.

Formation of a traumatic air cyst and ensuing hemopneumothorax during CT angiography in a patient with Ehlers-Danlos syndrome.

Ehlers-Danlos syndrome (EDS) refers to a rare group of genetic disorders that makeup part of the connective tissue disorders consortium. It is characterized by clinical features such as skin hyperextensibility, joint hypermobility, and tissue fragility. A vascular subtype (EDS IV) exists, that predisposes affected patients to vascular injury and is well-known and documented.

Cholecystostomy as an Exclusive Access to Remove Cystic, Common Hepatic, and Common Bile Duct Stones.

The purpose of this article was to evaluate the feasibility and efficacy of percutaneous fluoroscopic-guided stone retrieval from the cystic duct and antegrade common bile duct (CBD) stone advancement into the duodenum exclusively through a cholecystostomy tube. Twenty-one patients with acute cholecystitis and choledocholithiasis or an impacted cystic duct stone who underwent percutaneous cholecystostomy tube placement were retrospectively enrolled in this study. The patients had a contra-indication for cholecystectomy (17 patients because of comorbidities and one who declined surgery) or had failed endoscopic retrograde stone removal attempts (three patients).

Median Arcuate Ligament Syndrome With Celiac Artery Aneurysm and Dissection.

Median arcuate ligament syndrome (MALS) is the chronic symptomatic compression of the celiac artery by the median arcuate ligament. A known potential sequela of MALS is celiac artery aneurysm, which could predispose the diseased artery to dissection. However, the presence of celiac artery dissection and MALS is yet to be reported.

Hepatic venous pressure gradient correlates with advanced hepatic fibrosis: a retrospective review.

Purpose: To determine if hepatic venous pressure gradient (HVPG) correlates with advanced hepatic fibrosis, as a complement to transjugular (transvenous) core needle liver biopsy.

Materials And Methods: After institutional review board approval, a retrospective review was conducted on 340 patients who underwent transjugular (transvenous) core needle liver biopsy with concurrent pressure measurements between 6/1/2007 and 6/1/2013. Spearman correlation and linear regression were performed.

A multidisciplinary quality improvement program increases the inferior vena cava filter retrieval rate.

Published reports indicate low retrieval rates for retrievable inferior vena cava (IVC) filters. We performed a historic-controlled study of a 5-year intervention (March 2007 to February 2012) to improve IVC filter retrieval rates at a university medical center serving a rural area. All adults with a retrievable filter placed were included, except those with a life expectancy <6 months.

Disabling Mitochondrial Peroxide Metabolism via Combinatorial Targeting of Peroxiredoxin 3 as an Effective Therapeutic Approach for Malignant Mesothelioma.

Dysregulation of signaling pathways and energy metabolism in cancer cells enhances production of mitochondrial hydrogen peroxide that supports tumorigenesis through multiple mechanisms. To counteract the adverse effects of mitochondrial peroxide many solid tumor types up-regulate the mitochondrial thioredoxin reductase 2--thioredoxin 2 (TRX2)--peroxiredoxin 3 (PRX3) antioxidant network. Using malignant mesothelioma cells as a model, we show that thiostrepton (TS) irreversibly disables PRX3 via covalent crosslinking of peroxidatic and resolving cysteine residues in homodimers, and that targeting the oxidoreductase TRX2 with the triphenylmethane gentian violet (GV) potentiates adduction by increasing levels of disulfide-bonded PRX3 dimers.

Angiographic embolization is safe and effective therapy for blunt abdominal solid organ injury in children.

Background: : Angiographic embolization (AE) is used to control hemorrhage in adult blunt liver, spleen, and kidney (ASO) injuries. Pediatric experience with AE for blunt ASO injuries is limited. We reviewed our use of AE to control bleeding pediatric blunt ASO injuries for efficacy and safety.

Current trends in vena caval filtration with the introduction of a retrievable filter at a level I trauma center.

Objective: The purpose of this study was to document the initial experience, indications, technical success, and complications with an optional vena caval filter at a Level I trauma center.

Methods: The trauma registry and interventional radiology database were reviewed for all venal caval filters placed during a 15-month period. Records were reviewed for age of patient, indication, type of filter, and duration between placement and removal of the filter.

Radiofrequency ablation of renal transitional cell carcinoma with protective cold saline infusion.

Radiofrequency (RF) ablation is a feasible option for treatment of renal tumors when definitive tumor resection is not performed. Renal hilar and ureteral masses are generally more difficult than peripheral renal tumors to approach with RF ablation because of the higher associated risks of injury to the hilar vessels and the collecting system. This report presents a case of RF ablation of transitional cell carcinoma of the ureteropelvic junction, performed successfully for intractable hematuria.