Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0036572 (seizures)
 80,221 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A retrospective review of pharmacy records during a 7-year period at the Johns Hopkins Oncology Center revealed that 6 patients received greater than 4 g of morphine sulfate per day by continuous infusion (CI). Three patients received high-dose infusions for more than 24 h. Two of these 3 patients developed grand mal seizures, while the third was receiving a neuromuscular blocking agent making detection of seizures difficult. Prolonged administration of high concentrations of the sodium bisulfite preservative contained in the morphine solution is a possible explanation for the development of these seizures. Caution is suggested in using CI, preservative-containing morphine at high doses.
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PMID:Grand mal seizures associated with high-dose intravenous morphine infusions: incidence and possible etiology. 148 21

1. The effects of chemically induced convulsions, clinically similar to those elicited by electroconvulsive treatment (ECT), on brain regional distribution of neuropeptide Y-, neurokinin A-, substance P- and neurotensin-like immunoreactivities were studied in the rat. 2. Pentylenetetrazole (PTZ) and bicuculline (BIC) were used to induce grand mal seizures. Rats were divided into three groups receiving one of the following treatments: Saline, PTZ (45 mg/kg) or BIC (1.5 mg/kg). 3. After sacrifice by focused microwave irradiation, brains were dissected, peptides extracted and measured by specific radioimmunoassays. 4. Repeated grand mal convulsions induced by PTZ, in similarity to ECT, markedly increased NPY-LI concentrations in frontal cortex and hippocampus. In contrast to ECT, no changes in NKA- or SP-LI levels were seen. NT-LI was lowered in striatum. 5. Bicuculline effects were more circumscribed: some animals developed grand mal and died while convulsing (peptides not measured), others did not develop generalized seizures and were sacrificed after the fourth treatment. 6. The results demonstrate a similar effect of PTZ and ECT on regional NPY-LI concentrations and raise the possibility that grand mal, regardless of etiology, is necessary for effects on peptides.
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PMID:Brain neuropeptides: changes by treatment with the convulsants pentylenetetrazole and bicuculline. 149 30

The kindling response of the massa intermedia (MI) was assessed in rats. Clinical manifestation of the MI kindling was generally similar to that of limbic kindling, and positive transfer to the amygdala (AM) was obtained following MI kindling. However, MI kindling showed (1) a relatively high after discharge threshold which sometimes increased during the course of kindling, (2) a seizure stage instability with frequent regression to earlier stages, (3) a failure to establish a generalized seizure triggering threshold with an 'all-or-none' property, and (4) a generalized tonic-clonic seizure, which was quite different from a kindled limbic seizure, during early phase of kindling. Furthermore, the MI stimulation caused violent beating movement of the forelimbs, jumping, or running regardless of presence/absence of afterdischarge. The findings suggest that mechanisms other than a simple activation of limbic structures are involved in the process of MI kindling.
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PMID:Kindling of the massa intermedia of the thalamus in rats. 150 75

A 27-year-old parturient developed a severe headache after placement of a labor epidural catheter. A presumptive diagnosis of an occult postdural puncture headache (PDPH) was made, and the patient was treated with an intravenous (IV) infusion of 500 mg of caffeine sodium benzoate (CSB) to vasoconstrict dilated cerebral vessels. Shortly after the infusion was completed, the patient experienced a self-limited grand mal seizure, which recurred later during her hospitalization. Despite a neurologic consultation and extensive testing, no definitive cause for the seizure was found. In light of the temporal relationship between caffeine use and the development of seizure activity, reports implicating caffeine's contribution to seizure activity, and evidence of a prolongation of the substance's half-life during and after pregnancy, we urge caution in the use of this drug in parturients.
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PMID:Grand mal seizure in a postpartum patient following intravenous infusion of caffeine sodium benzoate to treat persistent headache. 154 Mar 70

The case histories of two women who developed new-onset seizures in the peripartum period of their pregnancies are presented. These two women had divergent medical histories and prenatal courses. Both women developed grand mal seizures that could be attributed to several established etiologies, yet no specific diagnoses were made. Although their risk factors for developing human immunodeficiency virus (HIV) infection were quite different, both women subsequently were confirmed as HIV positive. Since new-onset seizures have been described as a presenting symptom of HIV infection in other studies, the seizures experienced by these two women could be the presenting symptom of their HIV infection. The authors suggest that HIV testing should be considered for any pregnant woman who develops new-onset seizures during the course of her pregnancy, regardless of her risk factor assessment for HIV infection.
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PMID:Development of new-onset seizures in the peripartum period. Should human immunodeficiency virus infection be considered a cause? 156 84

Intermittent rhythmic delta activity is reported in various disorders and is classified as a nonspecific abnormal electroencephalographic pattern. We have investigated its clinical and electroencephalographic features in childhood. Intermittent rhythmic delta activity was identified in 54 children over a period of 48 months. Epilepsy was present in 81%, 4% had only a single generalized tonic-clonic seizure, and 15% had no seizures. Generalized seizures were more common than partial seizures (83% versus 13%; 4% were mixed). The largest group of patients had idiopathic epilepsy. Epileptiform features were present in 70%. No patient identified prospectively has had a space-occupying lesion. Intermittent rhythmic delta activity should be considered an epileptiform pattern in children, most commonly occurring as an interictal pattern in primary generalized epilepsy.
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PMID:The epileptiform significance of intermittent rhythmic delta activity in childhood. 157 32

A 79 year old man, with left femoral neck fracture, was scheduled for an elective operation. After admission, severe hyponatremia probably due to diuretics developed. No neurological abnormalities were observed before surgery. He recovered from anesthesia with no problems. But on the 5th postoperative day he showed transient unresponsiveness. Grand mal seizures were also seen after the serum Na level had recovered to around 130 mEq.l-1. This case shows that in the management of severe hyponatremia, the discrimination between acute and chronic hyponatremia seems to be important.
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PMID:[Anesthetic management of a patient with severe hyponatremia]. 157 24

Psychiatric disorders in epilepsy are frequently encountered. Contradictory reports are given in literature about the phenomenology of such disturbances and their relationship to seizure frequency. Depression has been described as mostly like "endogenous" with a family history of psychiatric illness or mostly "reactive". 32 patients with idiopathic Grand mal-seizures were studied using the Inpatient Multidimensional Psychiatric Scale (IMPS). They showed significant higher levels in scales of anxious depression and impaired functioning, no signs of hostility or delusion. Severity of depression was moderate compared with groups of inpatients suffering from endogenous and neurotic-depressive disorders. It was correlated with frequency of epileptic seizures and history of behaviour disturbances in infancy (Spearman-rang correlation).
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PMID:[Depressive disorder of the epilepsy patient--symptoms and factors of influence]. 169 87

We report on 79 pregnancies in 66 female outpatients with epilepsy. An increase of seizure frequency was significantly more frequent in complex partial seizures than in grand mal seizures and in absences. The reason for these disparities are not clear. In most patients a raised frequency of seizures during pregnancy decreased again after delivery. Carbamazepine was the antiepileptic drug prescribed most frequently followed by valproic acid. The course of the blood levels of carbamazepine and valproic acid was nonuniform during pregnancy. Total concentrations of carbamazepine in cord blood were on average 84.5% of those in maternal blood (n = 22). Valproic acid blood levels were on average 183% of those in maternal blood (n = 15). It is still unclear whether these differences are clinically relevant. During the last weeks of pregnancy we found an increase of the free fraction of carbamazepine and valproic acid. Simultaneously the total protein concentration decreased. Until now these findings are without clinical relevance. The course of labor did not differ from normal population concerning the ratios of spontaneous labor, cesarean section and delivery by forceps. Miscarriage and perinatal mortality were 2.7% each and outnumbered the risk in the general population. In 42.8% of the neonates one to three perinatal complications were observed. The ratio of perinatal complications is not different between patients with monotherapy and combined therapy respectively. There was a tendency to lower values of length, weight and head circumference in the male neonates but not in the female neonates. The risk of minor malformations was 26%, the risk of major malformations was 14% (including one case of suspected malformation) without a discernible correlation with a specific antiepileptic drug.
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PMID:[The course of pregnancy and teratogenicity of antiepileptic agents in 66 patients with epilepsy]. 172 Dec 36

A 23-year-old woman who had an uneventful prenatal course and normal delivery developed severe, generalized headache and blurred vision on postpartum day four. The patient was noted to have generalized hyperreflexia and sustained ankle clonus. The blood pressure was 170/100 mm Hg, there was no edema, and the urine showed trace proteinuria. The visual disturbance rapidly progressed to complete blindness with preserved pupillary reactions. The patient then had a generalized tonic-clonic seizure lasting about one minute. Treatment was initiated with intravenous diazepam and phenytoin, and there was no recurrence of seizure activity. Vision returned to normal and the patient made a complete recovery. This case is presented to demonstrate progressive postpartum pre-eclampsia and the importance of early recognition and treatment. Pathophysiologic mechanisms and treatment options are discussed.
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PMID:Cortical blindness in postpartum preeclampsia progressing to eclampsia: case report. 173 43


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