| chronic hypertensive disease | The chronic accumulative effects of long-standing high blood pressure on such vital organs as the heart, kidney, and brain. (05 Mar 2000) |
|---|---|
| hypertensive | 1. Marked by an increased blood pressure. 2. Denoting a person suffering from high blood pressure. (05 Mar 2000) |
| hypertensive angiopathy | A condition of turkeys of unknown aetiology, associated with sudden death in rapidly growing male birds. (05 Mar 2000) |
| hypertensive arteriopathy | Arterial degeneration resulting from hypertension. (05 Mar 2000) |
| hypertensive arteriosclerosis | Progressive increase in muscle and elastic tissue of arterial walls, resulting from hypertension; in longstanding hypertension, elastic tissue forms numerous concentric layers in the intima and there is replacement of muscle by collagen fibres and hyaline thickening of the intima of arterioles; such changes can develop with increasing age in the absence of hypertension and may then be referred to as senile arteriosclerosis. (05 Mar 2000) |
| hypertensive encephalopathy | A metabolic encephalopathy caused by diffuse cerebral oedema; follows an abrupt elevation of blood pressure in a long-term hypertensive patient. (05 Mar 2000) |
| hypertensive retinopathy | A retinal condition occurring in accelerated vascular hypertension, marked by arteriolar constriction, flame-shaped haemorrhages, cotton-wool patches, star-figure oedema at the macula, and papilledema. (05 Mar 2000) |
| colitis, ischemic | Acute vascular insufficiency of the colon usually involving the portion supplied by the inferior mesenteric artery. The symptoms include pain at the iliac fossa, bloody diarrhoea, low-grade fever, abdominal distention, and abdominal tenderness. The classic radiologic sign is thumbprinting due to localised elevation of the mucosa by submucosal haemorrhage or oedema. Ulceration may follow. (12 Dec 1998) |
| hypoxic-ischemic encephalopathy | Damage to cells in the central nervous system (the brain and spinal cord) from inadequate oxygen. Hypoxic-ischemic encephalopathy allegedly may cause in death in the newborn period or result in what is later recognised as developmental delay, mental retardation, or cerebral palsy. This is an area of considerable medical and medicolegal debate. (12 Dec 1998) |
| ischemic | Affected by ischaemia. (27 Sep 1997) |
| ischemic colitis | <radiology> Precipitating factors: volvulus, carcinoma, cardiovascular disease, history of aortoiliac reconstruction (2%) with ligation of IMA, abrupt onset of lower abdominal pain and rectal bleeding, location: splenic flexure (80%) and rectosigmoid (watershed areas), BE: single contrast prefered (lesions may become effaced with double contrast), serrated mucosa; pseudopolyposis; transverse ridging; thumbprinting on mesenteric side; deep ulcers, CT: thickening of wall; irregular lumen (thumbrinting), curvilinear collection of intramural gas, portal and mesenteric venous air, blood clot in superior mesenteric artery / superior mesenteric vein, Angio (similar to inflammatory disease): normal / slightly attenuated arterial supply, mild acceleration of arteriovenous transit time (12 Dec 1998) |
| ischemic contracture of the left ventricle | Irreversible contraction of the left ventricle of the heart as a complication seen in the early period of cardiopulmonary bypass and now avoided by appropriate cardioplegic solutions. Synonym: myocardial rigor mortis, stone heart. (05 Mar 2000) |
| ischemic hypoxia | Tissue hypoxia characterised by tissue oligaemia and caused by arterial or arteriolar obstruction or vasoconstriction. (05 Mar 2000) |
| ischemic mitral regurgitation | A regurgitation of the mitral valve caused by ischemic heart disease. (05 Mar 2000) |
| ischemic muscular atrophy | See: Volkmann's contracture. (05 Mar 2000) |