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Query: UMLS:C0036572 (seizures)
 80,221 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We present two children with seizures and other signs of cerebral involvement at the outset of acute inflammatory demyelinating polyneuropathy, consistent with a diagnosis of encephalomyeloradiculoneuropathy. One child had a recurrence associated with mild central dysfunction and improved during therapy with corticosteroids. Both children recovered completely. Both acute and relapsing inflammatory demyelinating neuropathy may be accompanied by cerebral dysfunction, expanding the clinical spectrum of encephalomyeloradiculoneuropathy.
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PMID:Cerebral involvement in children with acute and relapsing inflammatory polyneuropathy. 285 Mar 16

Infusion-therapy with antidepressants has been of value in severe as well as therapy resistant depressive states. In addition to doses lower than those used for oral treatment, a more rapid onset of therapeutic effect and a better tolerance, the beneficial effect seems also to depend on the setting in which the treatment takes place. Infusion-therapy is a combined pharmacopsychotherapeutic procedure. Next to infusion-treatment a pretreatment with neuroleptics is advised either via the oral or parenteral route. In extremely refractory depression the infusion-therapy can be applied twice a day; in some cases we resort to continuous infusion for a few days. Infusion-therapy is not applicable in patients prone to epileptic seizures or with serious cerebral dysfunction with a risk of delirium. In case of doubt an EEG is mandatory. Tricyclic antidepressants may not be used in cardiac diseases especially those with troubles of the conduction propagation or repolarization.
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PMID:[The treatment of severe, therapy-resistant depression using infusions of antidepressants]. 292 14

Long latency auditory event-related potentials have been shown to change in patients with cerebral dysfunction. Some seizure patients with no evidence of brain damage or mental retardation show altered interictal cognitive and memory function. Long-latency auditory event-related potentials to tone stimulation were recorded in nineteen control subjects and seventeen patients with complex partial or partial and secondarily generalized seizures who had no evidence of brain damage, retardation, or drug intoxication, and whose seizures were controlled when studied. The latencies of N2 and P3 components were significantly longer in seizure patients than control subjects, and the P3 waveform was significantly greater in amplitude in epileptics. These findings suggest that cognitive event-related potentials are affected by partial epilepsy. The changes may be related to the recently reported involvement of the hippocampus in ERP generation, or to loss or alteration of modulatory functions, possibly cholinergic in nature, in the temporal lobe consequent upon epileptogenesis.
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PMID:Long-latency auditory event-related potentials in epilepsy. 308 37

The most important premise for a successful surgical treatment of epilepsy lies in an accurate diagnosis of the focus location. The hitherto employed methods for this purpose are meticulous analysis of seizure contents and scalp EEGs, but spatial localization of the focus sites is far beyond the capacity of these diagnostic measures. With the advent of positron emission tomography (PET), in vivo observation of human brain metabolism has become possible. The indices of brain metabolism such as cerebral blood flow (rCBF), cerebral metabolic rate of glucose or oxygen (CMRG, CMRO2) are noninvasively measured by PET offering priceless information for diagnosing brain dysfunction such as ischemia, degeneration, psychosis, or epilepsy. Kuhl et al. first employed PET in assessment of epileptic foci, in which interictal foci were beautifully detected as discrete "hypometabolic zones". Many researchers have confirmed this invaluable finding, and nowadays PET seems to have acquired the citizenship as one of the most capable diagnostic measures in focus localization. We have hitherto applied PET study in 72 epileptic patients. The main contents of their seizures consists of complex partial in 32, elementary partial in 32, generalized in 6, and others in 3 cases. We administered perorally 10 mCi glucose labeled with C11 produced in the JSW Baby Cyclotron for the study of CMRG. The continuous inhalation method of CO2 and O2 labeled with O15 produced in the same cyclotron was also employed for measurement of rCBF and CMRO2. In both studies, epileptic foci were shown as well demarcated hypometabolic zones with decreased CMRG, rCBF or CMRO2.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Surgical treatment of convexity focal epilepsy--based on diagnosis of PET and subdural EEG]. 310 88

To our knowledge, this is the first population-based case-control study of risk factors for absence seizures (AS). Diagnosis of AS was based on clinical criteria. The complete medical history of potential cases, available through the records-linkage system for residents of Rochester, MN, was independently reviewed by three neurologists who agreed upon the diagnosis. All AS patients who were residents of Rochester at time of diagnosis between 1935 and 1979, and who were born in this community, were included (N = 30). Two population controls (born in Rochester) were matched to each patient, and for both patients and controls, the records-linkage system was used to obtain information about possible risk factors. The only factor significantly more common in cases than in controls was a history of febrile seizures (odds ratio = 12; p less than 0.01). We suggest that these febrile seizures represent either an early manifestation of the convulsive diathesis or the symptom of a preexisting brain dysfunction. None of the other factors investigated reached statistical significance, including those that have been previously suggested such as twin pregnancy, breech presentation at delivery, being first-born, and perinatal asphyxia. Sample size limitations should be considered in interpreting these findings.
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PMID:Risk factors for absence seizures: a population-based case-control study in Rochester, Minnesota. 311 8

The clinical identification of neonatal seizures is critical for the recognition of brain dysfunction; however, diagnosis is often difficult because of the poorly organized and varied nature of these behaviors. Current classification systems are limited in their ability to communicate motor, autonomic, and electroencephalographic features of seizures precisely and to provide a basis for uniform effective diagnosis, therapy, and determination of prognosis. Recent investigations of neonates, utilizing bedside electroencephalographic/polygraphic/video monitoring techniques, have provided the basis for improved diagnosis and classification of seizures in the newborn. These studies have demonstrated that not all clinical phenomena currently considered to be seizures require electrocortical epileptiform activity for their initiation or elaboration. In addition, the specific clinical character of the phenomena considered to be seizures, the clinical state of the infant, and the character of the EEG indicate the probable pathophysiological mechanisms involved and suggest probable etiologies, prognosis, and therapy. Similarities between animal models that demonstrate reflex physiology and neonates with motor automatisms and tonic posturing suggest that these clinical behaviors may not be epileptic in origin but, rather, primitive movements of progression and posture mediated by brainstem mechanisms. Although not all clinical behaviors currently considered to be neonatal seizures may have similar pathophysiological mechanisms, they are clinically significant because they all indicate brain dysfunction.
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PMID:Neonatal seizures: problems in diagnosis and classification. 311 30

The Sturge-Weber syndrome includes unilateral cerebral cortical angiomatosis, which often leads to progressive cerebral dysfunction and epileptic seizures that are medically difficult to control. Cerebral resections and hemispherectomy have been successfully performed in the past in intractable epileptic cases. Two children with medically unresponsive generalized seizure activity secondary to the Sturge-Weber syndrome have been surgically treated by dividing their corpus callosum. Cessation of generalized epilepsy was achieved in both cases. Corpus callosotomy is presented as a less destructive and safer procedure in dealing with intractable seizures in the Sturge-Weber syndrome.
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PMID:Corpus callosum section in the treatment of intractable seizures in the Sturge-Weber syndrome. 316 77

Although several components of neglect syndrome have been reported to occur more frequently following right cerebral lesions, a right cerebral predominance for directed tactile attention has not been demonstrated. The intracarotid sodium amytal procedure (ISA, or Wada test) offers the opportunity to investigate differential effects for symmetric acute dysfunction of each cerebral hemisphere in each subject. In the present study, 18 patients undergoing preoperative evaluation for epilepsy surgery were trained in a nonverbal task of tactile attention. Left/right mean ISA dosages and left/right tactile test times postinjection were matched. Results revealed more correct responses following left ISA, and greater tactile inattention with more extinction-type responses following right ISA. No effect of seizure focus, sex, order of injection, or dosage was present. The finding that tactile inattention occurs more frequently with right cerebral dysfunction is consistent with right cerebral dominance for scanning attentional mechanisms directed at the external milieu.
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PMID:Right cerebral specialization for tactile attention as evidenced by intracarotid sodium amytal. 318 12

The improving results of modern obstetrics, anesthesiology and immediate pediatric care have to be assessed. Clinical methods are available, providing guidelines for a simple neuro-sensorial assessment of the full-term newborn. When abnormalities are detected at the first assessment, the newborn will be assessed daily or every other day, as the symptomatology often rapidly changes. Based on these repeated evaluations, a gradation of 3 levels of severity is established, by the end of the first week: mild (1) includes tone abnormalities and hyperexcitability but no seizures and no CNS depression; moderate (2) includes CNS depression +/- isolated seizures; severe (3) includes coma and repeated seizures. Though this gradation represents an empirical cut-off in a continuum of signs and symptoms indicating brain dysfunction at birth, correlations with late outcome are reasonably good. Individual prognosis is out of our reach, specially in grade 2 infants. However, as a group estimation of late outcome, this gradation is satisfactory. Neurobehavioral competence in the full-term newborn is such that one assessment performed within normal limits in the first 3 days allows a reasonable prediction of a normal outcome, no matter how dreadful the pregnancy and/or delivery has been. Therefore neurological assessment of the full-term newborn in the first week of life can be considered as a good marker for the quality of perinatal care, and good feed-back information for the obstetrical staff.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Cerebral handicap in full-term newborns related to late pregnancy and/or labor. 340 57

Verbal memory testing was conducted during electrical stimulation of the human hippocampus in 12 epilepsy surgery candidates with unilateral temporal lobe seizure onset. Performance was assessed during baseline, left hippocampal stimulation and right hippocampal stimulation. Verbal intrusion errors were greater during electrical stimulation of the hippocampus contralateral to the seizure focus. These findings suggest that verbal intrusions are related to memory deficits, and that patients with cerebral disease who intrude words from an earlier portion of a learning test are likely to have bilateral cerebral dysfunction.
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PMID:Electrical stimulation of the human hippocampus produces verbal intrusions during memory testing. 340 4


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