(n.) An unnatural, violent, and unvoluntary contraction of the muscular parts of an animal body.
(n.) Any violent and irregular motion or agitation; a violent shaking; a tumult; a commotion.
Example Sentences:
(1) The results show that in TMO-treated animals the time to the onset of convulsions, the time to the onset of NADH oxidation-reduction cycles, and the survival time were significantly longer than in the control group.
(2) The effects of low doses of dihydropyridine (DHP) calcium channel antagonists nimodipine, nifedipine, (-)-R-202-791, and amlodipine, the DHP calcium channel agonist BAY K 8644 were investigated on clonic convulsions to pentylenetetrazole (PTZ) in mice.
(3) 1 Rats were convulsed once daily for 7 days by exposure to the inhalant convulsant agent, flurothyl (Indoklon, bis (2,2,2-trifluouroethyl)ether).
(4) Ruthenium red (RuR) inhibits Ca2+ uptake and transmitter release in synaptosomes, and produces flaccid paralysis when injected intraperitoneally (IP) and convulsions after intracranial administration.
(5) extended the survival time, even though all the mice died as a result of the convulsions.
(6) Facial twitch was followed by the generalized convulsion, further progressing to trembling of the limbs and then kicking of the hindlimb (full seizure) after 55 days of age.
(7) CZP reduced the incidence of convulsions only after the larger dose, but plain solvent (propylene glycol, ethanol, water) was equally effective.
(8) The relationship between the susceptibility to convulsions, the content of pyridoxal 5'-phosphate and the activity of pyridoxal kinase (EC 2.7.1.35) and glutamate decarboxylase (EC 4.1.1.15) in brain, was studied in the developing mouse.
(9) The convulsive episodes had several maxima during the abstinence period.
(10) A nervous syndrome characterized by clonic convulsive episodes inducible by exercise, developed at day 11.
(11) Anesthetic drugs have been each time defined pro or anti-convulsant: however, data from the literature show that it is not possible to certainly define the role of general anesthetics in the genesis of post-operative seizures.
(12) The risk of epilepsy after febrile convulsions is much less than reported in many hospital studies, and if febrile convulsions cause brain damage that leads to later epilepsy this is a rare occurrence.
(13) It was demonstrated that neither enflurane nor halothane exacerbates a pre-existing susceptibility to seizure activity and that both these inhalation anaesthetics are suitable for cases suffering from cerebral convulsive disorders.
(14) They were given individually to guinea pigs prior to poisoning with 2 x LD50 soman to test their efficacy against organophosphorus-induced convulsions, brain damage, and lethality.
(15) The antivasopressor analog d(CH2)5Tyr(Me) arginine-vasopressin completely blocked the convulsive-like behavior and other severe motor disturbances which are normally observed following a second central arginine-vasopressin injection.
(16) Venoruton offers a protection against hypoxic stress-induced neurotoxicity (convulsions and death) in mice.
(17) Evidence suggests that this lesion is probably a common cause of chronic epilepsy in adults and that often it is probably the result of a severe febrile convulsion in infancy.
(18) Using chick synaptic membranes, proteinaceous acceptors were characterized for dendrotoxin, a polypeptide from Dendroaspis angusticeps with convulsant activity due to its facilitation of transmitter release, resulting from inhibition of A-current K+ channels in brain.
(19) Compared with afebrile patients, PGE-2 levels were significantly higher after febrile convulsions.
(20) Seizures elicited by posture change and intraperitoneal administration of convulsants were studied ontogenetically in the Mongolian gerbil (Meriones unguiculatus).
Paroxysm
Definition:
(n.) The fit, attack, or exacerbation, of a disease that occurs at intervals, or has decided remissions or intermissions.
(n.) Any sudden and violent emotion; spasmodic passion or action; a convulsion; a fit.
Example Sentences:
(1) In Patient 2 they were at first paroxysmal and unformed, with more prolonged metamorphopsia; later there appeared to be palinoptic formed images, possibly postictal in nature.
(2) Electrophysiologic studies are indicated in patients with sustained paroxysmal ventricular tachycardia, ventricular fibrillation or aborted sudden death.
(3) Pheochromocytoma may present without the typical features of paroxysmal or sustained hypertension, headache, increased sweating, and palpitations.
(4) The patients who had little or no paroxysmal activity during sleep were the youngest.
(5) Following a midcollicular transection the paroxysmal bulbar activity abruptly disappeared.
(6) We speculate that this paroxysmal activity is a type of seizure discharge.
(7) Hemimasticatory spasm is a rare disorder of the trigeminal nerve that produces involuntary jaw closure due to paroxysmal unilateral contraction of jaw-closing muscles.
(8) The first patient had paroxysmal headaches from an arteriovenous malformation which resolved following embolization.
(9) A diagnosis of paroxysmal nocturnal hemoglobinuria may be suggested with magnetic resonance imaging, based on the massive renal cortical hemosiderosis that occurs in this disease.
(10) In all patients, the nystagmus elicited during the paroxysm was compatible with excitation of the posterior semicircular canal.
(11) The administration of vitamin E, a natural antioxidant, to a patient with paroxysmal nocturnal haemoglobinuria (PNH) failed to diminish the urinary excretion of 59-Fe as monitored by 59-Fe whole body counting and urinary loss of isotope.
(12) Single or repetitive supraventricular premature beats were found in 65 (41%), paroxysmal atrial or junctional tachycardias in 20 (12%), bouts of atrial flutter or fibrillation in 3 (2%).
(13) A 16 year old white female presented with paroxysmal cough and hemoptysis of recent onset.
(14) The effectiveness and electrophysiologic mechanisms of antiarrhythmic effect of digoxin were examined in 27 patients with paroxysmal atrioventricular nodal reciprocal tachycardia (PAVNRT) and supraventricular tachycardia (SVT) due to latent complementary conductive pathways, i. e. latent Wolff-Parkinson-White (WPW) syndrome.
(15) It thus appears that paroxysmal, vagally mediated complete AV block should be seriously considered in patients with unexplained syncope.
(16) In 13 cases of infantile spasms whose EEG showed hypasrhythmia, paroxysmal discharges were completely or remarkably suppressed in 4 cases, partially suppressed in 3 cases, but not improved in 6 cases.
(17) The majority were abnormal, and those from patients with intracranial pathology often showed asymmetry of delta activity and paroxysmal discharges.
(18) We report on 2 patients with a history of paroxysmal supraventricular tachycardia in whom 2:1 AV block with persistence of the arrhythmia was documented.
(19) Because of paroxysmal atrial fibrillation and fatigue, the patient underwent investigation.
(20) Both paroxysmal atrial tachycardia (PAT) and left ventricular dysfunction were reversed with administration of digoxin and propranolol hydrochloride.