watershed infarct

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watershed infarct

Neurology Infarction of a region peripheral to 2 arteries and susceptible to ischemia; WIs are often hemorrhagic, as restoration of the circulation allows blood to flow into damaged capillaries and 'leak' into the ischemic tissue
Watershed infarctions-locations
Brain  After internal carotid artery occlusion, causing vascular 'steal' phenomena, or between the anterior and middle cerebral arteries, which may be compromised in circle of Willis occlusions, often in a background of generalized atherosclerosis and as a possible complication of directed therapeutic embolization; cerebral perfusion may be impaired by cardiac arrest, pericardial tamponade and ex-sanguination
Large intestine At either the splenic flexure, the site of anastomosis between the inferior and superior mesenteric arteries, or at the rectum, a region supplied by peripheral irrigation from the inferior mesenteric artery and the hypogastric artery
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Finally, on late Monday, or possibly early Tuesday, my consultant came with the news that I had suffered a right carotid artery dissection, and subsequent Watershed Stroke."
A doctor is not liable for complications that arose after a patient sought a second surgery with another doctor to correct a leg-length discrepancy from her first hip-replacement operation, a Jackson County jury has decided.<br />"She chose to have follow-up surgery by another physician to lessen the leg-length inequality, and unfortunately, the morning after that second surgery and relating to that second surgery, she had a watershed stroke that neurologically affected her," said Bruce Keplinger of Norris & Keplinger, which represented the defendants Dr.
These distal areas are referred to as the "watershed" or "border zone." Watershed stroke occurs at the vessel juncture of the MCA, as it comes upward over the temporal-parietal area, and the ACA, as it comes upward between the two hemispheres and descends over the top of the parietal surface.

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