| OAD | obstructive airway disease; organic anionic dye |
|---|---|
| OLD | obstructive lung disease; orthochromatic leukodystrophy |
| ROAD | reversible obstructive airways disease |
| HIVD | Herniation(Herniated) of Inter-Vertebral Disc - Cervical HIVD &... |
| AHD | acquired hepatocerebral degeneration; acute heart disease; antihyaluronidase; antihypertensive drug;... |
| chronic pneumonia | Vague or indefinite term for long-standing inflammation of pulmonary tissue of any aetiology. (05 Mar 2000) |
|---|---|
| chronic progressive chorea | A progressive disorder usually beginning in young to middle age, consisting of a triad of choreoathetosis, dementia, and autosomal dominant inheritance with complete penetrance. Bilateral marked wasting of the putamen and the head of the caudate nucleus is characteristic. Synonym: chronic progressive chorea, degenerative chorea, hereditary chorea, Huntington's disease. (05 Mar 2000) |
| chronic progressive external ophthalmoplegia | A specific type of slowly worsening weakness of the ocular muscles, usually associated with a pigmentary retinopathy. See: Kearns-Sayre syndrome, oculopharyngeal dystrophy. Synonym: ocular myopathy. (05 Mar 2000) |
| chronic progressive syphilitic meningoencephalitis | Syphilitic infection manifested as dementia (often with delusional features), dysarthria, seizures, myoclonic jerks, action tremor, impaired walking and standing, pupillary abnormalities, and abnormal CSF findings. Synonym: chronic progressive syphilitic meningoencephalitis. (05 Mar 2000) |
| chronic pyelonephritis | Chronic inflammation of the renal parenchyma and pelvis resulting from bacterial infection, characterised by calyceal deformities and overlying large flat renal scars with patchy distribution. (05 Mar 2000) |
| chronic rejection | A transplant rejection occurring after a few or many months, mainly from persisting serum antibody action. (05 Mar 2000) |
| chronic renal failure | <nephrology> Chronic renal failure represents a slow decline in kidney function over time. Chronic renal failure may be caused by a number of disorders which include long-standing hypertension, diabetes, congestive heart failure, lupus or sickle cell anaemia. If renal function declines to a low enough level (end-stage renal disease) kidney dialysis may be necessary. A sudden decline in renal function may be triggered by a number of acute disease processes. Examples include sepsis (infection), shock, trauma, kidney stones, kidney infection, drug toxicity (aspirin or lithium), poisons or toxins (drug abuse) or after injection with an iodinated contrast dye (adverse effect). Both forms of renal failure result in a life-threatening metabolic derangement. (27 Sep 1997) |
| chronic rheumatism | A non-specific disorder of the joints, slow in progress, producing a painful thickening and contraction of the fibrous structures, interfering with motion, and causing deformity. (05 Mar 2000) |
| chronic rhinitis | A protracted sluggish inflammation of the nasal mucous membrane; in the later stages the mucous membrane with its glands may be thickened (hypertrophic rhinitis) or thinned (atrophic rhinitis). (05 Mar 2000) |
| chronic shock | The state of peripheral circulatory insufficiency developing in elderly patients with a debilitating disease, e.g., carcinoma; a subnormal blood volume makes the patient susceptible to haemorrhagic shock as a result of even a moderate blood loss such as may occur during an operation. (05 Mar 2000) |
| chronic soroche | Loss of high altitude tolerance after prolonged exposure (e.g., by residence), characterised by extreme polycythemia, exaggerated hypoxaemia, and reduced mental and physical capacity; relieved by descent. Synonym: altitude erythraemia, chronic soroche, Monge's disease. (05 Mar 2000) |
| chronic subglottic laryngitis | chorditis vocalis inferior |
| chronic symptomatic HIV infection | This refers to an HIV infection that is characterised by signs and symptoms of HIV that are not life-threatening. Examples include oral thrush, gingivitis, seborrheic dermatitis, molluscum contangiosum, fevers, fatigue, lymph node swelling, malaise and weight loss. This stage can be a signal for the conversion from asymptomatic HIV disease to HIV disease (moe pronouced symptoms include joint pains). AIDS is diagnosed after HIV disease has started to manifest life-threatening oppotunistic infections (for example pneumocystis, cryptosporidium, toxoplasmosis, etc). (27 Sep 1997) |
| chronic tamponade | Cardiac compression over long periods due to pathologically increased fluid in the pericardial sac. (05 Mar 2000) |
| chronic toxicity | <pharmacology> Illness caused by repeated or long-term exposure to low doses of a toxic substance. Compare: acute toxicity. (09 Oct 1997) |