title: Sequelae to pneumoencephalography.
abstract: Fifty patients were examined clinically and neurologically for seven days after pneumoencephalography. Headache was present in 78%, neck stiffness in 34%, pyrexia in 38%, vomiting in 34%, tachycardia in 74%, a change in the level of consciousness in 18%, and abnormal neurological signs in 30%. Of the 13 patients with epilepsy, there was an increased frequency of seizures in four, associated with increased EEG epileptiform activity in three. EEG abnormality either appeared or increased in 74% of cases on the second day after the air study. A mechanism for the production of these sequelae is proposed. It is concluded that these findings indicate that in most cases an organic brain syndrome follows pneumoencephalography.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001480:Basal Ganglia Diseases / Q000209:etiology; D002556:Cerebrospinal Fluid Proteins / Q000032:analysis; D004569:Electroencephalography; D004827:Epilepsy; D005260:Female; D005334:Fever / Q000209:etiology; D006261:Headache / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D019965:Neurocognitive Disorders / Q000209:etiology*; D011011:Pneumoencephalography / Q000009:adverse effects*; D011712:Pyramidal Tracts; D012640:Seizures / Q000209:etiology; D013118:Spinal Cord Diseases / Q000209:etiology; D013610:Tachycardia / Q000209:etiology; D014839:Vomiting / Q000209:etiology
chemical_list: D002556:Cerebrospinal Fluid Proteins