Lateral geniculate artery pseudoaneurysm after arthroscopic medial meniscectomy.

Vascular complications after arthroscopy are rare and generally present as transient paresthesia most likely due to nervous injury or vasospasm. Rare cases of genicular artery injuries can occur and generally involve the medial genicular artery due to proximity to the right arthroscopic knee hook. This case, however, represents a rare lateral inferior genicular artery injury resulting in a symptomatic pseudoaneurysm.

Urinary excretion after transcaval renal penetration of a fragmented Bird's Nest filter.

Permanent inferior vena cava (IVC) filters are used to prevent venous thromboembolic events in select populations of patients. The Bird's Nest filter (BNF; Cook Medical, Bloomington, Ind) is an IVC filter that has been associated with various complications including filter strut fractures, migration, caval wall perforation, visceral perforation, and vascular injury. We report a case of a BNF that eroded transmurally through the IVC into the right kidney parenchyma.

Endovascular repair of an axillary artery pseudoaneurysm attributed to hyperextension injury.

Evolution of endoluminal technologies, enhanced stent designs, and smaller delivery systems have increased the potential for using covered stents to treat the spectrum of traumatic arterial injuries. Improved stent-graft flexibility, reduced fracture potential, and a greater variety of lengths and diameters have increased the versatility for use in axillary and subclavian locations. Open repair of traumatic arterial injuries in the chest and shoulders can result in significant morbidity and mortality.

Temporal gene expression following prosthetic arterial grafting.

Background: Following prosthetic arterial grafting, cytokines and growth factors released within the perianastomotic tissues stimulate smooth muscle cell proliferation and matrix production. While much in vitro work has characterized this response, little understanding exists regarding the sequential up- and down-regulation of genes following prosthetic arterial grafting. This study evaluates temporal gene expression at the distal anastomosis of prosthetic arterial grafts using microarray analysis.

Temporal genomics of vein bypass grafting through oligonucleotide microarray analysis.

Objective: Autologous vein is the conduit of choice for small artery reconstruction. Despite excellent patency, these conduits undergo remodeling over time. The purpose of this study was to identify temporal gene expression in vein grafts versus control veins through microarray analysis.