Biomedical subjects
Publications and source records attributed to G E Solomon.
White-centered retinal hemorrhages (so-called "Roth spots") were seen in an 11-year-old girl with spontaneous intraventricular and subarachnoid hemorrhage from a ruptured "berry" aneurysm without underlying systemic disorder.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Respiratory pattern and heart rate were studied in 28 pre-term infants and four full-term infants during the first weeks of life. Sleep state was identified by standard neurological and EEG criteria. Apneic spells lasting 10 seconds or more were most frequent in the least mature infants, and their frequency tended to diminish with increasing maturity. When these apneic attacks were related to sleep state they were found to occur more frequently during non-REM sleep in infants of 30 to 33 weeks gestation. This was the only statistically significant difference found. No over-all pattern relating sleep state to frequency of apnea could be detected for individual infants. It was also difficult to relate the occurrence of bradycardia to apnea in terms of sleep state or gestational age. It is concluded that no simple relationship between sleep state, apnea and bradycardia exists and that a complex interrelation between central and peripheral factors is involved in these events.
A few neonates born to mothers receiving anticonvulsant drugs during pregnancy have shown defects in vitamin K dependent clotting factors with or without clinical bleeding. Experimentally, phenytoin (diphenyl hydantoin, DPH) has induced clotting defects in cats and inhibited production of clotting factors in rat liver slices. Phenobarbital has produced similar but milder defects. Anticonvulsants have been observed to produce clotting defects in 9 children, 2 weeks to 8 years in age. Elevated levels of phenytoin or other anticonvulsants, or a combination of anticonvulsants were measured in the children. Six patients were on drug combination including two or more of the following: phenytoin, phenobarbital, primidone, carbamazepine, diazepam, ethosuximide. Clotting defects included: elevated prothrombin time, elevated partial thromboplastin time, diminished factors V, VII or X. All children had neurologic symptoms of anticonvulsant toxicity, but the only hematologic problems were oozing from venipuncture sites and increased bruising in 3. All patients were on normal diets and had normal liver function tests. By lowering the level of anticonvulsants, clotting factors returned toward normal. Elevated levels of anticonvulsants can potentially produce clotting defects in neonates and young children.
Explore the source record for details and available documents.
The authors conducted a follow-up study of 78 patients with Gilles de la Tourette's syndrome. Four of the patients were in spontaneous remission; 59 patients taking haloperidol showed an average improvement of 79.3% and the remaining patients, 3 of whom were taking medication other than haloperidol and 12 of whom were not taking any medication, showed an average improvement of 24.7%. Side effects were the main cause of discontinuing haloperidol. The authors found that response to haloperidol was unrelated to family history of tics, age at onset, type or severity of symptoms, or signs of organicity.
Aphasia due to simple partial status epilepticus is rare, particularly in the absence of a seizure history. No previous report describes acute aphasia as the sole clinical manifestation of EEG-monitored status epilepticus, with prompt resolution with treatment. We report a 45-year-old man with a left temporal glioblastoma who acutely developed a global aphasia, during which an EEG revealed continual repetitive sharp waves emanating from the left hemisphere. After injection of i.v. diazepam, the EEG seizure activity ceased, and the patient's language output returned to preseizure levels.
Explore the source record for details and available documents.