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Query: UMLS:C0025362 (mental retardation)
 15,878 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

During the last 10 years (1973-1982), we have surgically treated 9 children for large echinococcus cysts with intraventricular localization. In 7 cases the cysts were localized in lateral ventricles and in 2 cases in IVth ventricle and cerebellum. The children were from 3 to 11 years old. All cases were with signs of mental retardation and immediately before surgical treatment with signs of brain incarceration. In 7 children there was a disorder of consciousness, from drowsiness to deep sleep. The treatment was conducted with two surgical methods. All children survived the surgical treatment.
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PMID:[Voluminous intraventricular hydatid cysts in children]. 408 9

Haloperidol is safe and effective in children for relieving psychotic symptoms associated with childhood autism, schizophrenia and mental retardation. It is the drug of choice for Tourette's syndrome, and may be useful in nonpsychotic hyperactive or aggressive children to control acute episodes, or when the stimulants normally useful in hyperactive children are ineffective. Such children taking haloperidol not only become calmer, but are often better able to respond to other modalities of therapy and to school instruction. Dosage, initially low, is increased gradually to minimize drowsiness and extrapyramidal symptoms, the most common side effects. Haloperidol in children is usually well-tolerated.
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PMID:Haloperidol -- its use in children. 693 55

Child abuse by whiplash-shaking can lead to severe injury in infants, including cerebral damage, neurological defects, blindness, and mental retardation. These findings are seen often without external evidence of head injury. Nurses should suspect shaken baby syndrome (SBS) in infants less than 1 year of age who present with apnea, seizures, lethargy or drowsiness, bradycardia, respiratory difficulty, coma, or death. Subdural and retinal hemorrhages accompanied by the absence of external signs of trauma are hallmarks of the syndrome.
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PMID:Shaken baby syndrome: a nursing perspective. 771 67

Twenty infants aged 2 weeks to 3 months with the diagnosis of bleeding disorder secondary to low prothrombin complex level were studied. Sixty children of the control group were matched to the cases by age +/- 2 weeks, sex and race. The ratio of boys to girls was 2.3:1. The median, mean, and range of age of the cases and controls were 43.5 days, 43.7 days, 21-73 days and 43.5 days, 46.8 days, 26-28 days respectively. Most of them were pale with a mean hematocrit of 23.55%. The partial thromboplastin time and prothrombin time were markedly prolonged. The means of vitamin K dependent coagulation factors II, VII, IX and X were 1.10%, 5.87%, 2.86%, and 4.47% of adult activity, respectively. The clinical manifestations related to the bleeding of the cases were drowsiness and convulsion (95%), pallor (85%), and apparent bleeding (10%). The sites of the bleeding were demonstrated in the cranial cavity (95%), gastrointestinal tract and oral cavity (15%), and skin (5%). Nineteen patients with intracranial hemorrhage had bleeding in the subdural space (79%), intracerebral (42%), intraventricular (32%), and subarachnoid space (5.2%). The mortality rate and permanent brain damage occurred in 10% and 45%, respectively. Only 45% of the cases recovered normally. The permanent neurological sequelaes were hemiparesis (44.4%), microcephaly (33.3%), convulsive disorder (33.3%), mental retardation (33.3%), spasticity (22.2%), and hydrocephalus (11.1%). Breast feeding alone up to the day of study (OR = 7.0, p < 0.005) was found to be a significant risk factor for bleeding in these infants.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Risk factors of bleeding diathesis secondary to low prothrombin complex level in infants: a preliminary report. 788 52

The Rubinstein-Taybi syndrome is characterized by a pattern of malformations including broad thumbs and big toes, microcephaly, facial dysmorphism, small stature, and mental retardation. Obstructive sleep apnea (OSA), has been described in several facial or skeletal malformations, but never in the Rubinstein-Taybi syndrome. We studied a 9-year-old boy, previously diagnosed as having the Rubinstein-Taybi syndrome and affected by severe OSA, as documented by polysomnography. He manifested the habitual and heavy snoring with breathing difficulties at night, and excessive daytime sleepiness. Short neck and obesity were important factors for the severity of the syndrome. Continuous positive airway pressure was not tolerated and weight loss was the only possible treatment, as upper airway surgery was not indicated by cephalometric, otolaryngologic or clinical results.
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PMID:Obstructive sleep apnea in the Rubinstein-Taybi syndrome. 834 55

Headbanging is a rhythmic movement disorder (RMD) along with headrolling, bodyrocking and bodyrolling. The International Classification of Sleep Disorders defines RMD as a group of stereotyped, repetitive movements involving large muscles, usually of the head and neck, that typically occur immediately prior to sleep onset and are sustained into light sleep. The average onset is 9 months, and by 10 years of age the majority of subjects no longer complain of headbanging. If it continues, it is usually associated with mental retardation of autism. Headbanging is said to occur during presleep drowsiness or early non-rapid eye movement sleep. Often there is no need for treatment other than reassurance. Behavior modification has had little success. Benzodiazepines (such as oxazepam and diazepam) and tricyclic antidepressants have been used with variable success. We present two cases of headbanging with polysomnographic findings and treatment. The patients are two healthy adult males. They both experienced significant daytime somnolence and repeatedly wakened their partners. Only one of our patients had recorded head movements during his overnight sleep study. There was evidence of headbanging during stage 1 and stage 2 sleep but also during slow wave sleep. Headbanging was recorded during 14% of the epochs. Both patients responded to treatment with clonazepam (at a dose of 1.0 mg nightly) with decreased frequency and severity of headbanging. Although headbanging is most common in childhood, there may be significant number of cases that persist into adulthood. To our knowledge, this is the first report of the treatment of headbanging with clonazepam. Both patients benefited from this treatment.
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PMID:Adult headbanging: sleep studies and treatment. 940 33

A double-blind, placebo-controlled, crossover study of methylphenidate (0.4 mg/kgday) and different doses of fenfluramine (1.0, 1.5, or 2.0 mg/g/day) in children with mental retardation or borderline IQ and ADHD was conducted. Parents, teachers, examiners, and physicians rated the children. There were relatively few significant drug effects by condition. When the optimal fenfluramine dose for each child was compared with placebo and methylphenidate, significant improvements occurred for fenfluramine on several parent and teacher subscales; teachers rated the children as somewhat improved with methylphenidate. The highest dose of fenfluramine produced more behavior compliance but apparently at the cost of cognitive efficiency. Most side effects (drowsiness, dizziness, anorexia) occurred with fenfluramine. Both drugs appear to be effective treatments for children with ADHD and mental retardation, although there is a possible neurotoxic action with fenfluramine. We recommend a gradual phase-in of fenfluramine dosage, up to 1.5 mg/kg/day, for most children.
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PMID:Fenfluramine and methylphenidate in children with mental retardation and borderline IQ: clinical effects. 908 8

Ornithine transcarbamylase deficiency is an X linked disorder and the most common inherited cause of hyperammonaemia. Fluctuating concentrations of ammonia, glutamine, and other excitotoxic amino acids result in a chronic or episodically recurring encephalopathy. A heterozygous female patient first presented with protein intolerance, attacks of vomiting, and signs of mental retardation in early childhood. At the age of 16 complex partial seizures occurred which were treated with sodium valproate. Seven days after initiation of valproate therapy, she developed severe hyperammonaemic encephalopathy with deep somnolence. The maximum concentration of ammonia was 480 micromol/l. After withdrawal of valproate, three cycles of plasma dialysis, and initiation of a specific therapy for the inborn metabolic disease, ammonia concentrations fell to normal values. The patient remitted, returning to her premorbid state. Valproate can cause high concentrations of ammonia in serum in patients with normal urea cycle enzymes and may worsen a pre-existing hyperammonaemia caused by an enzymatic defect of the urea cycle. Sufficient diagnostic tests for the detection of metabolic disorders must be performed before prescribing valproate for patients with a history of encephalopathy.
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PMID:Hyperammonaemic encephalopathy after initiation of valproate therapy in unrecognised ornithine transcarbamylase deficiency. 959 92

Smith-Magenis syndrome (SMS) is a clinically recognizable multiple congenital anomaly and mental retardation syndrome caused by an interstitial deletion of chromosome 17 p11.2. Although the physical and molecular genetic features of SMS are increasingly well understood, work is more limited on SMS's behavioral phenotype, which includes self-injury, tantrums, and sleep disturbance. This study examines the sleep behaviors of 39 individuals with SMS, ranging in age from 1.6 to 32 years (mean = 10.5). Prominent sleep problems, seen in 65 to 100% of the sample, included difficulties falling asleep, shortened sleep cycles, frequent and prolonged nocturnal awakenings, excessive daytime sleepiness, daytime napping, snoring, and bed-wetting. Medication to facilitate sleep was used by 59% of SMS subjects. Possible etiologic mechanisms of sleep disturbance in SMS are discussed, as are recommended interventions.
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PMID:Sleep disturbance in Smith-Magenis syndrome (del 17 p11.2). 961 60

Shaken baby syndrome is a serious form of physical child abuse, which is frequently overlooked. It should be suspected in all children younger than one year of age, who present with drowsiness, coma, seizures or apnoea. A combination of subdural haematomas and retinal haemorrhages with minimal or no trauma and no coagulopathy is almost pathognomonic of the syndrome. The findings are caused by shaking with or without impact. Physical signs of violence are often absent and the syndrome may easily be mistaken for serious infection or seizure disorder. Many cases are fatal or lead to severe disability including blindness, cerebral palsy, mental retardation or epilepsy in about 60% of the children. There are many unresolved problems regarding diagnosis, pathophysiology, treatment, prognosis, prophylaxis and legal actions. We discuss these problems and in addition present eleven children with shaken baby syndrome.
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PMID:[Shaken baby syndrome]. 982 79


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