introduction: today, temporary or permanent venous catheters are being increasingly used in patients with renal failure. it seems a necessity to be familiar with their clinical applications and complications as well as their efficacy. the aim of this study was to compare the efficacy of two catheters of 16 cm and 20 cm lengths. methods: this research project was a descriptive, analytic study co...

background: brucellosis can involve almost any organ system and may present with a broad spectrum of clinical presentations. in this study we present a case of deep vein thrombosis due to human brucellosis. case presentation: a 15 year old boy presented acute pain and swelling in his left thigh. when admitted to the hospital in june 2011, he complained of fever, chills and lowers extremity pain...

Venous pressures were measured within the vein of Galen aneurysm/straight sinus complex in 15 patients with Galenic arteriovenous fistulae and vein of Galen aneurysms. Pressures exceeded normal (less than 5 cm of H2O) in each instance, ranging between 9 and 55 cm of H2O. Measured values exceeding 20 cm of H2O were associated with an increased occurrence of brain calcification. Mean venous press...

PURPOSE To explore the applicability of contrast-enhanced ultrasound (CEUS) as a new method to detect impaired microcirculation in type 2 diabetes mellitus patients with microvascular complications (DM+MC). METHODS Ultrasound contrast agent was injected into peripheral vein of 28 patients with DM+MC, 30 uncomplicated type 2 diabetes mellitus (DM) patients, and 30 control subjects. Its appeara...

BACKGROUND AND PURPOSE The basal vein of Rosenthal (BVR) presents with many variations because of its origin in the secondary longitudinal anastomoses between embryonic veins. The variations were evaluated by 3D CT angiography imaging. METHODS Three-dimensional CT angiograms in the axial stereoscopic view and other directions constructed by the voxel transmission method and maximum intensity ...

Purpose Adjuvant coils may offer advantages in flow control during glue embolization of high flow vein of Galen aneurysmal malformation (VGAM) patients but involves specific issues such as feasibility, durability and coil mass effect. The purpose of this study is to assess the outcome of adjuvant coils in addition to transarterial glue embolization for treatment of these patients. Materials a...

OBJECTIVE Vein grafts in a coronary bypass or a hemodialysis access often develop obliterative growth of the neointima. We previously reported that the mechanical stretch-activated insulin-like growth factor-1 receptor (IGF-1/IGF-1R) pathway plays an important role in this remodeling. However, the transcriptional mechanism(s) regulating IGF-1R expression and neointima formation have not been id...

Previous studies have demonstrated that the ventral aorta of the dogfish shark, Squalus acanthias, responds to a variety of cell-signaling agents. To investigate the generality of vasoactive receptors in the shark vasculature, in particular a conductance artery (anterior mesenteric) and vein (posterior intestinal), I measured the effect of acetylcholine, endothelin, nitric oxide, natriuretic pe...