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 31,883 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We examined potential clinical and pathologic correlates of seizures among the 3,291 children in the Childhood Brain Tumor Consortium database. Fourteen percent had seizures prior to their hospitalization for a brain tumor. Among children who had a supratentorial tumor, seizures occurred in 22% of those less than 14 years of age. The prevalence of seizures increased to 68% of older teenagers. Among children with an infratentorial tumor, the prevalence of seizures was relatively constant at 6% over all age groups. The onset of seizures began more than one year prior to surgical tumor removal in over half of the children aged five or more with supratentorial tumors, significantly longer than for those of the same age with infratentorial tumors. Almost all children (98.9%) with an infratentorial tumor and seizures had at least one other symptom and more than three-fourths of them had at least three. Eighty-nine percent of children with a supratentorial tumor and seizures had at least one other symptom and more than one-half had at least three symptoms. Regardless of whether the tumor was above or below the tentorium, confusion or stupor and coma were more common in children with seizures than in children without seizures. Among children with supratentorial tumors, symptoms of a declining academic performance or an abnormality of personality, speech, walking, or sensation were significantly more frequent in children with seizures, while visual symptoms (other than visual loss or diplopia) and nausea or vomiting were less frequent. Among children with supratentorial tumors, those who had seizures were more likely to have paralysis of an arm, hand, or face, confusion or stupor, or coma and less likely to exhibit irritability, papilledema, optic atrophy, decreased visual acuity, pupillary abnormalities, or abducens paresis. Among children with infratentorial tumors, those with seizures were significantly less likely to have truncal ataxia, but more likely to experience confusion, stupor, or coma. In the supratentorial compartment, astrocytoma (nos), protoplasmic astrocytoma, anaplastic astrocytoma, and ependymoma were more frequently associated with seizures than was craniopharyngioma. No infratentorial tumor type was more or less likely to be associated with seizures. All common tumor types that were represented in both the supratentorial and the infratentorial compartment except astrocytoma (nos) were associated with significantly greater rates of seizures when located in the supratentorial compartment. The tumor location with the highest incidence of seizures was, as expected, the superficial cerebrum. More than 40% of the children with such tumors had seizures.(ABSTRACT TRUNCATED AT 400 WORDS)
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PMID:Epidemiology of seizures in children with brain tumors. The Childhood Brain Tumor Consortium. 154 79

The term "papilledema" describes optic disc swelling resulting from increased intracranial pressure. A complete history and direct funduscopic examination of the optic nerve head and adjacent vessels are necessary to differentiate papilledema from optic disc swelling due to other conditions. Signs of optic disc swelling include elevation and blurring of the disc and its margins, venous congestion, and retinal hard exudates, splinter hemorrhages and infarcts. Patients with papilledema usually present with signs or symptoms of elevated intracranial pressure, such as headache, nausea, vomiting, diplopia, ataxia or altered consciousness. Causes of papilledema include intracranial tumors, idiopathic intracranial hypertension (pseudotumor cerebri), subarachnoid hemorrhage, subdural hematoma and intracranial inflammation. Optic disc edema may also occur from many conditions other than papilledema, including central retinal artery or vein occlusion, congenital structural anomalies and optic neuritis.
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PMID:Papilledema: clinical clues and differential diagnosis. 154 98

Mental and psychomotor abilities are impaired to varying degrees after general anaesthesia. This has important implications for the time over which patients are monitored in the recovery room and for the discharge of outpatients after day surgery. The present study was undertaken to compare recovery and mental and psychomotor skills in the first 60 min following general anaesthesia with isoflurane, midazolam/alfentanil and propofol. METHODS. A total of 45 patients undergoing microsurgical lumbar nucleotomy were randomized to three study groups. Group 1 (n = 15): anaesthesia was induced with thiopentone and maintained with isoflurane; group 2 (n = 15): anaesthesia was induced with midazolam and maintained with alfentanil; group 3 (n = 15): anaesthesia was induced and maintained with propofol. Vecuronium was used for muscle relaxation and the lungs were ventilated with a mixture of 66% nitrous oxide in oxygen. The following were checked 15, 30, 45, and 60 min after extubation: choice reaction times and critical flicker fusion for psychomotor testing; the maze test and a modification of the ball-bearing test for discrimination of motor and mental activities; and short- and long-term memory. RESULTS. Immediate recovery did not differ in the three different groups. In all patients psychomotor function was impaired compared with baseline for more than 60 min after general anaesthesia. However, impairment was significantly less pronounced after propofol, and recovery to preanaesthesia values was faster following propofol than after midazolam/alfentanil, and slowest after isoflurane-anaesthesia (Figs. 1, 2). The flicker fusion frequency, a very sensitive parameter for the persisting effects of anaesthetics, was significantly higher following propofol anaesthesia and remained so throughout the entire study period (Fig. 3). By 30 min after extubation, short-term memory was already normal in patients who had undergone propofol anaesthesia, and a statistically significant difference from the midazolam/alfentanil and isoflurane anaesthesia groups was obvious throughout the entire study period. However, no differences in long-term memory were found. At 30 min after propofol anaesthesia all patients were able to perform the ball-bearing test, as against 13 patients following midazolam/alfentanil and 10 patients following isoflurane (Table 3). The maze test was mostly impaired after midazolam/alfentanil anaesthesia. Patients who underwent isoflurane anaesthesia needed the same time for the maze test at 60 min afterwards propofol patients needed after 30 min (Table 2). Side effects, e.g., nausea, vomiting, and double vision, were observed significantly more often in groups 1 and 2 (Table 4). DISCUSSION AND CONCLUSION. The results indicate that in operations of approximately 90 min duration the return of motor and mental abilities is faster following propofol anaesthesia. At 30 min after extubation following propofol anaesthesia patients had test results that allow their transfer from the recovery room, while it took 60 min for patients in the two other groups to reach the same levels of motor and mental function. This is important for the duration of monitoring in the recovery room and, especially, for day case anaesthesia.
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PMID:[Cognitive and psychomotor performance following isoflurane, midazolam/alfentanil and propofol anesthesia. A comparative study]. 159 May 75

The authors prospectively examined the prevalence of somatization symptoms among community respondents after a natural disaster in Puerto Rico. Exposure to the disaster was related to a higher prevalence of medically unexplained physical symptoms, particularly gastrointestinal ones (abdominal pain, vomiting, nausea, excessive gas) and pseudoneurological ones (amnesia, paralysis, fainting, unusual spells/double vision).
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PMID:Somatic symptoms after a natural disaster: a prospective study. 160 80

A rare case of cavernous angioma located in the fourth ventricular floor occurred in a 44-year-old female complaining of occipital headache, vomiting, diplopia, and dysarthria. Computed tomographic scans demonstrated a high-density area in the fourth ventricle and slight hydrocephalus. Magnetic resonance (MR) imaging showed a mixed intensity mass on T2-weighted images and high- or isointensity regions on T1-weighted images. The tumor was totally removed and histologically diagnosed as cavernous angioma. Postoperatively, ataxic gait, nausea, and vomiting disappeared gradually. MR imaging was useful to accurately evaluate the anatomic relationship between the lesion and the brainstem.
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PMID:Cavernous angioma in the fourth ventricular floor--case report. 171 36

Twenty-three patients with benign intracranial hypertension (BIH) were seen at the Royal Alexandra Hospital for Children, Sydney over an 18 year period to 1988. Age at presentation ranged from 6 months to 13 years and 5 months. The female to male ratio was 2.3:1. The aetiological factors (sometimes multiple) included: chronic middle ear infection, 30%; dural sinus thrombosis, 22%; head injury, 13%; Vitamin A overdosage, 4%; tetracycline exposure, 4%; and no apparent cause, 43%. Headache was the most common presenting symptom occurring in 91% of patients, followed by vomiting in 65% and blurred or double vision in 57%. Papilloedema occurred in 96% of patients, abducens palsy was noted in 48% and visual impairment in 45%. All patients improved clinically after treatment, one with lumbar puncture only. Of 17 patients treated with steroids, 10 patients recovered and seven patients went on to lumboperitoneal shunt. Two patients recovered with steroid and diuretic treatment. Of two patients initially treated with diuretics only, one recovered and one subsequently required a shunt. Only one patient was initially treated with a lumboperitoneal shunt. Three of the shunted patients had shunt block requiring revision. None had permanent visual loss or other significant sequelae. The visual prognosis of BIH in childhood is good. In view of the relatively high complication rate of steroids and shunting, a controlled comparison of steroid vs acetazolamide/diuretic therapy should be undertaken.
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PMID:Benign intracranial hypertension in childhood: a review of 23 patients. 156 75

In this report we present aspects of the epidemiology of headache (i.e., pain in the head, face, ear, or neck) among children with brain tumors. The data are derived from the 3,291 subjects in the Childhood Brain Tumor Consortium databank. Overall, 62% of the children with brain tumors experienced chronic or frequent headaches prior to their first hospitalization: 58% of children with supratentorial tumors and 70% of children with infratentorial tumors. The relative frequency of headache increased through age 7 and then leveled off regardless of tumor location. For children under age 5, headache rarely had a duration of more than 1 year prior to hospitalization. Among children over age 4, headache duration of at least one year was significantly greater for supratentorial than for infratentorial tumors. Children with a brain tumor and headache had a different distribution of symptoms and neurologic signs than those without headache. Tumor location and headache status were interactively associated with the presence of other symptoms and neurologic signs. Children with headache had a greater number of other symptoms and neurologic signs. Regardless of tumor location among children with headache, nausea or vomiting, papilledema, and hypoactive tendon reflexes were more frequent, while upper extremity weakness, optic atrophy, and irritability were less frequent. Diplopia, coma, stiff neck, anesthesia or hypesthesia, pupillary abnormalities, and abnormalities of personality, academic performance, or speech were associated with headache in children with supratentorial tumors. No specific symptoms or neurologic signs were associated with headache in children with infratentorial tumors. Supratentorial craniopharyngioma, ependymoma, and protoplasmic astrocytoma were associated with significantly high rates of headache as was infratentorial pilocytic astrocytoma.
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PMID:The epidemiology of headache among children with brain tumor. Headache in children with brain tumors. The Childhood Brain Tumor Consortium. 202 72

The authors present a case of a ruptured anterior inferior cerebellar artery aneurysm at the right internal auditory meatus, the incidence of which is thought to be very rare. The patient experienced sudden onset of headache, vomiting, and right tinnitus. Moderate right peripheral facial paresis, hearing disturbance and diplopia appeared 2 weeks after the onset. These signs and symptoms improved to some extent after successful clipping of the aneurysmal neck.
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PMID:Anterior inferior cerebellar artery aneurysm at the internal auditory meatus--case report. 247 58

Brain stem glioma is the third most common childhood brain tumor, comprising 10-15% of this group of neoplasms. Typical presenting symptoms include ataxia, diplopia and headache, while signs of increased intracranial pressure occur later in the clinical course. Although prolonged failure to thrive, characterized by cachexia and vomiting are rare manifestations of brain stem lesions, in this study we report a 9.5-year-old boy with failure to thrive since infancy which remitted after excision of a brain stem astrocytoma.
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PMID:Chronic dysphagia, vomiting and gastroesophageal reflux as manifestations of a brain stem glioma: a case report. 248 55

To evaluate the value of the nonsedative anticonvulsants carbamazepine and valproic acid a controlled study including drug monitoring was carried out. Intoxicated alcoholics (n = 138) were admitted for inpatient detoxication and randomly assigned to either carbamazepine (n = 43), sodium valproate (n = 46) or placebo (n = 49) in a double-blind fashion. Drug treatment lasted for four days and the daily doses of both drugs amounted to 1200 mg in the beginning of the study. Sodium valproate induced gastric distress, nausea and vomiting more frequently than placebo. About half of the subjects had to stop carbamazepine because of intolerable side-effects including vertigo, nausea, vomiting, diplopia and rash. Serum carbamazepine levels (18-89 mumol/l) were found to be high (greater than 40 mumol/l) in many but not all of these subjects. Seizures occurred in 3 subjects on placebo, 2 on carbamazepine and 1 on sodium valproate. Delirium tremens developed in 2 on sodium valproate and 1 on placebo. The study demonstrates that drug side-effects may seriously hamper the utility of carbamazepine and sodium valproate as routine treatment for the prevention of alcohol withdrawal symptoms.
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PMID:Prevention of alcohol withdrawal seizures with carbamazepine and valproic acid. 250 Jan 38


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