Right cervical aortic arch and pseudocoarctation of the aorta associated with aneurysms and steal phenomena: US, CTA, and MRA findings.

A 55-year-old woman presented with right cervical aortic arch with pseudocoarctation of the aorta further complicated by the presence of multiple aneurysms and a high-grade stenosis at the origin of the left subclavian trunk from the aorta causing a discrepancy in blood pressure between the right and left arms. The branching pattern and the resulting complex steal syndromes involving the left carotid and the subclavian system are unique. The computed tomography angiography, magnetic resonance angiography, and Doppler ultrasound findings are described.

[Effect of propranolol on renal hemodynamics in patients with cirrhosis: assessment with Doppler US].

Purpose: To determine the renal resistive index profile in cirrhotic patients before and after propranolol treatment and assess the effects of propranolol on renal hemodynamics.

Materials And Methods: Thirty-six patients with cirrhosis and ascites (decompensated group), 39 patients with cirrhosis but no ascites (compensated group) and 25 patients with normal renal and hepatic functions (control group) were studied. All had normal blood urea nitrogen and serum creatinine levels.

The effects of local and sustained release of fibroblast growth factor on testicular blood flow and morphology in spermatic artery--and vein-ligated rats.

Background/purpose: This study was carried out to evaluate the effects of local and sustained release of fibroblast growth factor (FGF) on testicular blood flow and morphology in spermatic artery--and vein-ligated rats.

Methods: Forty male Wistar albino rats weighting 300 +/- 20 g were allocated randomly into 5 groups consisting of 8 in each as follows: G-S (sham); G-C (control); and G-T0.85, G-T1.

Correlation between the diameter of the main renal artery and the presence of an accessory renal artery: sonographic and angiographic evaluation.

Objective: To evaluate whether the diameter of the main renal artery is an indicator of the presence of an accessory renal artery in sonographic examination.

Methods: Of cases undergoing renal intraarterial digital subtraction angiography for any reason, those with no renal arterial disease detected on digital subtraction angiography were included in the investigation. Accessory renal arteries were disclosed by digital subtraction angiographic examinations.

Hemodynamic effect of transdermal glyceryl trinitrate on newly constructed arteriovenous fistula.

Transdermal glyceryl trinitrate (GTN) administration may have a beneficial effect in the creation of an arteriovenous fistula (AVF) by increasing blood flow through the access and by inhibiting platelet aggregation. We evaluated the hemodynamic effects of transdermal GTN administration on newly constructed arteriovenous fistula. Radiocephalic fistula at the wrist (Brescia fistula) was constructed as the initial vascular access in 31 uremia patients (study = 16, control = 15).

Intrarenal arteriovenous fistula causing a "pseudonutcracker effect".

We report a case in which an intrarenal arteriovenous fistula caused the nutcracker effect. Color Doppler sonography of the left renal artery showed a peak systolic velocity of 150 cm/second and renoaortic ratio of 2.1.