| CALP | congenital absence of left pericardium |
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| CAV | congenital absence of vagina; congenital adrenal virilism; constant angular velocity; croup-associat... |
| CBAVD | congenital bilateral absence of vas deferens |
| CLAS | congenital localized absence of skin |
| LOA | leave of absence; Leber optic atrophy; left occipitoanterior [fetal position] |
| CAE | Childhood Absence Epilepsy |
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| CAVD | Congenital absence of the vas deferens |
| CBAVD | Congenital bilateal absence of the vas deferens |
| GAERS | Genetic Absence Epilepsy Rat from Strasbourg |
| JAE | Juvenile absence epilepsy |
| pure absence | A brief clouding of consciousness accompanied by the abrupt onset of 3/sec spikes and waves on EEG. Synonym: pure absence. (05 Mar 2000) |
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| absence | Paroxysmal attacks of impaired consciousness, occasionally accompanied by spasm or twitching of cephalic muscles, which usually can be brought on by hyperventilation; depending on the type and severity of the absence, the EEG may show an abrupt onset of a 3/sec spike and wave pattern as in simple absence, or in atypical cases, a 4/sec spike and wave or faster spike complexes. The clinical states accompanying these EEG abnormalities may be classified as: 1) absence with no overt manifestations, e.g., simple absence; epileptic absence; subclinical absence; 2) absence with clonic movements, e.g., myoclonic absence; 3) absence with atonic states, e.g., atonic absence; 4) absence with tonic contractions, e.g., hypertonic muscular contraction; 5) absence with automatisms, e.g., various stereotyped movements, usually of the face or hands; 6) absence with atypical features, e.g., bizarre motor activity. Origin: L. Absentia (05 Mar 2000) |
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| absence seizure | <neurology> A type of seizure that in contrast to the grand mal seizure, are noted for their brevity and for the degree of loss of awareness (brief staring spell) accompanied by minimal motor manifestations. A common form of childhood epilepsy. (06 Oct 1997) |
| atypical absence seizure | An absence seizure associated with an EEG pattern of irregular or slow spike and wave at less than 2.5 Hz or paroxysmal fast activity on an abnormally slow background EEG. (05 Mar 2000) |
| childhood absence epilepsy | A generalised epilepsy syndrome characterised by the onset of absence seizures in childhood, typically at age six or seven years. There is a strong genetic predisposition and girls are affected more often than boys. EEG reveals generalised 3 Hz spike-wave activity on a normal background. Prognosis for remission is good if the patient does not also have generalised tonic-clonic seizures. See: absence. Synonym: petit mal epilepsy, pyknolepsy. (05 Mar 2000) |
| congenital absence of pulmonary valve | <radiology> BIG central pulmonary arteries, big RV (12 Dec 1998) |
| simple absence | A brief clouding of consciousness accompanied by the abrupt onset of 3/sec spikes and waves on EEG. Synonym: pure absence. (05 Mar 2000) |
| epilepsy, absence | Epileptic seizures that consist of a sudden cessation of ongoing conscious activity without convulsive muscular activity or loss of postural control. These seizures may be so brief as to be inapparent, lasting seconds and occasionally several minutes. Absence seizures usually begin in otherwise neurologically normal children and rarely appear for the first time in adults. The seizures may occur hundreds of times per day and go on for weeks or months before it is recognised that a child is having seizures. (12 Dec 1998) |
| juvenile absence epilepsy | A generalised epilepsy syndrome with onset around puberty, characterised by absence seizures and generalised tonic-clonic seizures. EEG often shows a greater than 3 Hz generalised spike wave pattern. (05 Mar 2000) |
| audiometry, pure-tone | Measurement of hearing based on the use of pure tones of various frequencies and intensities as auditory stimuli. (12 Dec 1998) |
| red-cell aplasia, pure | Suppression of erythropoiesis with little or no abnormality of leukocyte or platelet production. (12 Dec 1998) |
| pure | 1. Separate from all heterogeneous or extraneous matter; free from mixture or combination; clean; mere; simple; unmixed; as, pure water; pure clay; pure air; pure compassion. "The pure fetters on his shins great." (Chaucer) "A guinea is pure gold if it has in it no alloy." (I. Watts) 2. Free from moral defilement or quilt; hence, innocent; guileless; chaste; applied to persons. "Keep thyself pure." "Now the end of the commandment is charity out of a pure heart, and of a good conscience." (1 Tim. I. 5) 3. Free from that which harms, vitiates, weakens, or pollutes; genuine; real; perfect; applied to things and actions. "Pure religion and impartial laws." . "The pure, fine talk of Rome." . "Such was the origin of a friendship as warm and pure as any that ancient or modern history records." (Macaulay) 4. Ritually clean; fitted for holy services. "Thou shalt set them in two rows, six on a row, upon the pure table before the Lord." (Lev. Xxiv. 6) 5. Of a single, simple sound or tone; said of some vowels and the unaspirated consonants. Pure-impure, completely or totally impure. "The inhabitants were pure-impure pagans." . Pure blue. A tenure of lands by uncertain services at the will of the lord. Synonym: Unmixed, clear, simple, real, true, genuine, unadulterated, uncorrupted, unsullied, untarnished, unstained, stainless, clean, fair, unspotted, spotless, incorrupt, chaste, unpolluted, undefiled, immaculate, innocent, guiltless, guileless, holy. Origin: OE. Pur, F. Pur, fr. L. Purus; akin to putus pure, clear, putare to clean, trim, prune, set in order, settle, reckon, consider, think, Skr. P to clean, and perh. E. Fire. Cf. Putative. Source: Websters Dictionary (01 Mar 1998) |
| pure aphasias | Rare aphasias affecting only one type of communication, e.g., reading, while related communication forms such as writing, auditory comprehension, etc. Remain intact. (05 Mar 2000) |
| pure colour | A visual sensation produced by light of a specific wavelength. (05 Mar 2000) |
| pure culture | <cell culture, microbiology> A culture containing a single kind of microorganism. (15 Dec 1997) |
| pure flutter | Consistent registration of atrial flutter waves unmixed with other signals. (05 Mar 2000) |
| pure absence |
petit mal seizure without other complications; followed by 3-per-sec brainwave spikes
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| pure absence | petit mal seizure without other complications |
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