| IR | drop of voltage across a resistor produced by a current; ileal resection; immune response; immunizat... |
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| SVRI | systemic vascular resistance index |
| TSVR | total systemic vascular resistance |
| ER | efficiency ratio; epigastric region; ejection rate; electroresection; emergency room; endoplasmic re... |
| PSS | painful shoulder syndrome; physiologic saline solution; porcine stress syndrome; primary Sjogren syn... |
| systemic hyalinosis | A rare recessively inherited deforming disorder of head, neck, and generalised cutaneous nodules or tumours in children with normal mentality; the lesions consist of fibroblasts separated by an eosinophilic hyalin stroma composed mostly of glycosaminoglycans. Synonym: systemic hyalinosis. (05 Mar 2000) |
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| systemic lupus erythematosus | <immunology, nephrology, rheumatology> A disease of humans, probably autoimmune with antinuclear and other antibodies in plasma. Immune complex deposition in the glomerular capillaries is a particular problem. Acronym: SLE (19 Jan 1998) |
| systemic mastocytosis | Infiltration of many organ systems by mast cells with varied clinical manifestations that can include fever, weight loss, flushing, bronchospasm, rhinorrhoea, palpitations, dyspnea, diarrhoea, gastrointestinal bleeding, and hypotension. Synonym: systemic mastocytosis. (05 Mar 2000) |
| systemic myelitis | Inflammation confined to special tracts of the spinal cord. (05 Mar 2000) |
| systemic-onset juvenile chronic arthritis | See: Systemic-onset juvenile rheumatoid arthritis (still's disease). (12 Dec 1998) |
| systemic-onset juvenile rheumatoid arthritis | <rheumatology> A form of joint disease, arthritis, that presents with systemic upset. Clinical signs: high intermittent fever, a salmon-coloured skin rash, swollen lymph glands, enlargement of the liver and spleen, and inflammation of the lungs (pleuritis) and around the heart (pericarditis). The arthritis itself may not be immediately apparent but once apparent, it may persist after the systemic symptoms have resolved. Synonym: Still's disease. (03 Jul 1999) |
| systemic poisoning | Any disease of toxic origin. Synonym: systemic poisoning. Origin: toxico-+ G. -osis, condition (05 Mar 2000) |
| systemic sclerosis | <rheumatology> A multisystem disorder of unknown aetiology. It is characterised by fibrosis (scarring) of the skin, blood vessels and internal organs. Involvement of the gastrointestinal tract, heart, kidneys and lungs is common. (09 Jan 1998) |
| systemic therapy | <pharmacology> Treatment that reaches and affects cells all over the body. (16 Dec 1997) |
| systemic venous hypertension | Increased pressure in the veins ultimately leading to the right atrium nearly always due to disease of the right heart but occasionally due to blockade of one or both venae cavae. (05 Mar 2000) |
| juvenile chronic arthritis, systemic-onset | See: Juvenile rheumatoid arthritis, systemic-onset (still's disease). (12 Dec 1998) |
| juvenile rheumatoid arthritis, systemic-onset | Also known as systemic-onset juvenile chronic arthritis. Still's disease presents with systemic (bodywide) illness including high intermittent fever, a salmon-coloured skin rash, swollen lymph glands, enlargement of the liver and spleen, and inflammation of the lungs (pleuritis) and around the heart (pericarditis). The arthritis may not be immediately apparent but it does always surface and it may persists long after the systemic symptoms are gone. (12 Dec 1998) |
| lupus erythematosus, systemic | A chronic, relapsing, inflammatory, and often febrile multisystemic disorder of connective tissue, characterised principally by involvement of the skin, joints, kidneys, and serosal membranes. It is of unknown aetiology, but is thought to represent a failure of the regulatory mechanisms of the autoimmune system. The disease is marked by a wide range of system dysfunctions, an elevated erythrocyte sedimentation rate, and the formation of le cells in the blood or bone marrow. (12 Dec 1998) |
| airway resistance | The opposition of the tracheobronchial tree to air flow: the mouth-to-alveoli pressure difference divided by the air flow. (12 Dec 1998) |
| ampicillin resistance | Nonsusceptibility of a microbe to the action of ampicillin, a penicillin derivative that interferes with cell wall synthesis. (12 Dec 1998) |