BACKGROUND Subclavian steal syndrome is a systemic entity that is well-documented in the medical literature. It occurs when the subclavian artery becomes stenosed or occluded and blood flow is reversed in the ipsilateral vertebral artery. This siphoning or "stealing" of blood has traditionally been thought to cause symptoms of vertebral-basilar insufficiency. Recent literature indicates that su...

Continuous-wave Doppler sonography is a reliable method for detecting severe subclavian stenosis and occlusion as well as subclavian steal. Intermediate stages leading to subclavian steal can also be detected. These are characterized by a cardiac-phase-dependent alternating flow direction in the vertebral artery. Some cases of proximal subclavian or proximal vertebral artery stenosis produce a ...

The Medical Journal of Australia ISSN: 0025729X 16 March 2009 190 6 331-332 ©The Medical Journal of Australia 2009 www.mja.com.au Lessons from Practice after coronary artery bypass using internal mammary Unfortunately, this simple non-invasive assessm overlooked, as it was in the patients reported here. approach to catheterisation of the left internal ma (LIMA) graft can also cause the diagnosi...

We present a rare cause of subclavian steal syndrome secondary to a dialysis arteriovenous fistula (AVF). A 69-year-old female with end-stage renal disease presented with ataxia and recurrent fainting spells. Angiography revealed normal subclavian arteries bilaterally, a right VA origin occlusion, and an apparent left VA origin occlusion. However, carotid artery angiography demonstrated flow th...

Patients with multivessel coronary artery disease are more likely to have extensive atherosclerosis that involves other major arteries. Critical subclavian artery (SCA) stenosis can result in coronary subclavian steal syndrome that may present as recurrent ischemia and even myocardial infarction in patients with coronary artery bypass graft (CABG). In patients with concomitant severe native cor...

The internal mammary artery is the conduit of choice for cardiac revascularization. Atherosclerotic disease of the coronary arteries may simultaneously involve the subclavian artery. Proximal stenosis in the left subclavian artery may result in recurrent myocardial ischemia in patients with a patent left internal mammary artery (LIMA), due to coronary steal syndrome through the LIMA.

Congenital anomalies of the great thoracic vessels have been reported in 20% of dogs and cats. In some cases, the vascular ring anomalies remain unrecognized throughout the lifetime of an animal. This report describes a case with an unusual vascular ring anomaly (VRA) that was detected during dissection on a cadaver of an approximately two-year-old male native mixed breed dog. No history of the...

Fig. 1. CTaxial image (a) evidences the anomalous origin of both carotid arteries from a unique trunk and demonstrates the presence of an aberrant right subclavian artery which passes ahead the thoracic spine inducing extrinsic compression of the esophagus. The origin of the bi-carotid trunk, which arises directly from the aortic arch, is more clearly viewable in the MPR image (b). Fig. 2. Pre-...

Left brachiocephalic vein begins from junction of left subclavian and left internal jugular vein posterior to medial end of left clavicle. It crosses to the right moving slightly in inferior direction and joins with right brachiocephalic vein to form superior vena cava. During its oblique course it crosses the left subclavian artery, left common carotid artery and brachiocephalic trunk in the s...