| arterial nephrosclerosis | Patchy atrophic scarring of the kidney due to arteriosclerotic narrowing of the lumens of large branches of the renal artery, occurring in old or hypertensive persons and occasionally causing hypertension. Synonym: arterionephrosclerosis, senile nephrosclerosis. (05 Mar 2000) |
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| arterial occlusive diseases | Diseases in which arterial vessels are partially or completely obstructed or in which the blood flow through the vessels is impeded. (12 Dec 1998) |
| arterial perfusion | <procedure> Treatment in which blood is drawn from a patient, pumped through a machine that adds anticancer drugs and returned to the major artery supplying the limb being treated. (16 Dec 1997) |
| arterial plethysmography | <investigation, procedure> A test which measures the systolic blood pressure of a normal extremity compared to an upper extremity. The test is usually used to detect arterial blockage in the lower extremities. There should be less than 20 mm of Hg difference in systolic blood pressure between the upper and lower extremities. More than this can indicate arterial occlusive disease or arterial blockage. (17 Oct 1997) |
| arterial sclerosis | <cardiology, disease> Imprecise term for various disorders of arteries, particularly hardening due to fibrosis or calcium deposition, often used as a synonym for atherosclerosis. (17 Oct 1997) |
| arterial segments of kidney | Regions of the kidney supplied by end arteries branching from the renal arteries; they are named anterior inferior segmentum, anterius superior segmentum, inferior segmentum, posterior segmentum, and superior segmentum. Synonym: segmenta renalia, arterial segments of kidney. (05 Mar 2000) |
| arterial spider | spider angioma |
| arterial switch operation | Operation for complete transposition of the great arteries; the most common way to repair this defect consists of switching the aorta and pulmonary arteries and implanting the coronary arteries into the neoaorta (the original pulmonary artery). (05 Mar 2000) |
| arterial tension | The pressure of the blood within an artery, the arterial pressure. Also called the intra-arterial pressure. (12 Dec 1998) |
| arterial thoracic outlet syndrome | <syndrome> A rare disorder due to compression of the subclavian artery (with resultant poststenotic dilation) by a fully formed cervical rib; thrombi form in the dilated distal arterial segment, and distal limb ischemia may occur due to thromboembolic events. (05 Mar 2000) |
| arterial transfusion | Direct transfusion from an artery of the donor into an artery of the receptor. (05 Mar 2000) |
| arterial vein | <anatomy, vein> So called because it ramifies like an artery (portal vein) or because, while proceeding from the heart like an artery, it contains unoxygenated blood, like a vein (pulmonary artery). Synonym: vena arteriosa. (05 Mar 2000) |
| arterial wave | A wave in the jugular phlebogram due to transmission of carotid artery pulsation. B wave, the initial positive deflection in the electroretinogram, possibly arising from the inner nuclear layer of the retina. (05 Mar 2000) |
| arterio-arterial fistula | Abnormal communication between two arteries. It may result from injury or occur as a congenital abnormality. (12 Dec 1998) |
| calcaneal arterial network | A superficial network over the calcaneus, formed by branches of the peroneal and posterior tibial arteries and twigs from the malleolar retia. Synonym: rete calcaneum. (05 Mar 2000) |