Results 331 to 340 of about 890,427 (367)

Evaluation of collateral circulation of the hand

Journal of Clinical Monitoring, 1992
In 1929, Edgar V. Allen described a noninvasive evaluation of the patency of the arterial supply to the hand of patients with thromboangitis obliterans (Am J Med Sci 1929; 178:237). In the early 1950s, Allen's test was modified (Wright I. Vascular diseases in clinical practice.
Thomas M. Fuhrman, Thomas E. Reilley, W. D. Pippin, Lance A. Talmage   +3 more
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Coronary Collateral Circulation

2018
Coronary collateral circulation is the small vessel connections formed between one epicardial coronary artery and another. The existence of these coronary anastomoses was demonstrated by Fulton in 1963. Rentrop and Werner subsequently devised collateral classification systems using angiographic characteristics as surrogates for collateral function ...
Novalia Sidik, James C. Spratt, Margaret McEntegart   +2 more
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Collateral Arterial Circulation in the Legs

Archives of Surgery, 1960
Introduction Much of our knowledge of collateral circulation has been derived from anatomical studies which have been subjected to pathophysiological interpretation. Arteriography provides a dynamic method of investigating the in vivo collateral patterns in extremities.
William F. Kennedy, James E. Conley
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Collateral lymphatic circulation

European Journal of Plastic Surgery, 2000
The collateral lymphatic circulation is a very important clinical pathophysiological phenomenon. The presence of a collateral lymphatic circulation is a sign of an obstructed lymph outflow and depends on location of the obstruction and on developmental anatomy of the lymphatic system.
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Collateral Circulation to an Ischemic Kidney

Radiology, 1976
A review of 301 consecutive abdominal arteriograms given to patients suspected of having occlusive arterial diseases was conducted. In 99 patients, 35% or more stenosis of the renal artery was demonstrated; of these, 40 showed demonstrable collaterals to the ischemic kidney.
Heun Y. Yune, Eugene C. Klatte
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Development of Collaterals in the Cerebral Circulation

Journal of Vascular Research, 1991
Sudden occlusion of the middle cerebral artery (MCA) in normotensive rats increases blood flow through anastomosing branches into the territory of the occluded artery. Three weeks after MCA occlusion, anastomoses to anterior cerebral branches are increased by more than 50% in luminal diameter.
Donald D. Heistad, Peter Coyle
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Development of Coronary Collateral Circulation

Annual Review of Medicine, 1977
Collateral coronary arteries provide alternate routes for delivery of blood to myocar­ dium distal to major coronary-artery obstructions. These channels may be extracar­ diac, endomural, or arterioluminal in origin (I). One additional source of collateral myocardial blood flow is from deliberate attempts to surgically augment blood flow to ischemic ...
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Collateral circulation of the brain

1978
Arterial obstruction in the cervical or intracranial vasculature may produce a neurologic deficit, depending on the rapidity of onset of the obstruction and the anatomic nature of the collateral circulation. Gradual occlusion of any vessel is accompanied by the progressive development of compensatory circulation, ie, enlargement of preexisting ...
Enrique Palacios, Behrooz Azar-Kia
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Collateral Circulation in the Sigmoid Colon [PDF]

Archives of Surgery, 1955
The blood supply to the sigmoid colon and upper rectum is traditionally related to a "critical point" beyond which ligation will cause necrosis. Most surgeons doubt this theory, but experimental proof is lacking. The arteries to the sigmoid colon and rectum have been reinvestigated with special reference to this question in fresh human autopsy material.
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Pathways of Cerebral Collateral Circulation

Radiology, 1960
Despite Considerable anatomical proof to the contrary, the myth of “end-artery” circulation to the brain has been perpetuated in textbooks for years. This interpretation of Cohnheim's original theory concerning infarction and his concept of end-arteries, published in 1872, has led to the erroneous assumption that cerebral collateral circulation is ...
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