We investigated a hypothesis that an oxygen sensor involved in hypoxia-induced relaxation of vascular smooth muscle may reside in endothelial cells. We also determined the oxygen dependence of hypoxia-induced decreases in cyclic guanosine 3',5'-monophosphate concentrations in vascular smooth muscle rings. Rings of canine femoral artery, rabbit thoracic aorta, and lamb ductus arteriosus, either ...

Data on 205 children who underwent retrograde arterial catheterisation were studied to assess the frequency of femoral artery thrombosis and the safety and efficacy of systemic streptokinase treatment for this complication. In 29 (14%) a transarterial balloon dilatation was performed. In 15 (7.3%) patients impaired arterial perfusion due to vascular spasm with or without thrombus formation was ...

Basilar aneurysms that are not amenable to standard endovascular treatment via the femoral approach because catheterization is difficult pose a rare but serious problem. We present two cases of basilar tip aneurysms successfully treated by the endovascular route after direct puncture of the right vertebral artery. In both patients, the left vertebral artery was tortuous, small, and irregular, a...

Although the common femoral artery is the easiest and most widely accepted access site for cerebral angiography, atherosclerotic, aortoiliac, or femoral artery disease can preclude this approach. We describe our experience using the ulnar artery access site in a patient with bilateral aortoiliac occlusive disease. This article may be useful to neuroradiologists who encounter difficulty with oth...

The present experiment was designed to measure the synthetic and breakdown rates of muscle protein in the hindlimb of rabbits with or without clamping the femoral artery. l-[ring-(13)C(6)]phenylalanine was infused as a tracer for measurement of muscle protein kinetics by means of an arteriovenous model, tracer incorporation, and tracee release methods. The ultrasonic flowmeter, dye dilution, an...

As the number of endovascular peripheral arterial interventions is increasing nationwide, so is the rate of observed in-stent restenosis, specifically in the superficial femoral artery. A paucity of literature is available regarding the pathophysiology, risk factors, and therapies associated with in-stent restenosis of the superficial femoral artery. This article summarizes the accumulated know...

A femoral artery aneurysm is a very rare complication of hip surgery treatment. In this presentation, we report a rare case of bone destruction caused by the femoral artery aneurysm after a hip hemiarthroplasty operation as a late stage complication. A 77-year-old male patient presented with swelling and pain in the hip without any signs of ischemia. X-ray showed a 7 cm bone destruction in the ...

Objectives Generally, popliteal artery aneurysms have been addressed surgically by a medial, posterior, or lateral approach. We have designed a new posterior approach that exposes the superficial femoral artery and entire popliteal artery without dividing any muscles in a just prone position. Methods and results A 72-year old man with huge popliteal aneurysm extended to superficial femoral ar...

A 52-year-old woman presented for investigation of exertional chest pain. Her medical history included an atrial septal defect; this was extensively investigated with right and left heart catheterizations at 13 years. There were complications related to this investigation, and further details were unavailable. The atrial septal defect was surgically repaired at 15 years; she had a subarachnoid ...