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PubMed1990

Assessment of median nerve somatosensory evoked potentials in cerebral ischemia.

Seventy patients with cerebral ischemia (21 with transient ischemic attack and 49 with stroke) were studied with short-latency median nerve somatosensory evoked potentials to characterize the evoked potentials in all ischemic patients and to investigate their efficacy for prognosis in stroke. Within 72 hours of symptom onset, all 70 patients received a scaled neurologic function score, with a maximum of 50 points. Somatosensory evoked potential abnormalities were found in 10% (2/19), 42% (15/36), and 93% (14/15) of all patients with initial neurologic examinations who had normal (50 points), mild-moderate (30-49 points), and severe deficits (less than or equal to 29 points), respectively. Thirty-seven of the 49 stroke patients were available for a follow-up neurologic assessment. Eight-nine percent (8/9) of the stroke patients with poor outcome had somatosensory evoked potential abnormalities; 82% (9/11) of the stroke patients with severe neurologic deficits at onset had poor outcome. Results demonstrate that somatosensory evoked potential abnormalities are common in patients with cerebral ischemia but that somatosensory evoked potential findings are not significantly better than a detailed neurologic examination in predicting outcome from stroke.

Adult↗

PubMed1990

Does Swedish amateur boxing lead to chronic brain damage? 1. A retrospective medical, neurological and personality trait study.

Sweden banned professional boxing in 1969 and has also considered banning amateur boxing. We therefore analysed possible chronic brain damage in 47 former amateur boxers who started their careers after the introduction of stricter Swedish amateur boxing rules. The boxers were compared with three control groups--25 soccer players, 25 track and field athletes and 19 conscripts. All athletes were interviewed about their sports career, medical history and social variables. They then underwent a physical and a neurological examination, including a mini-mental state examination. Personality traits were investigated and related to their platelet MAO activity in the athletes as well as in the conscripts. No significant differences were found between the groups in any of the physical or neurological examinations. All had a normal mini-mental state examination. Thus, results from these test methods did not reveal any signs of chronic brain damage from Swedish amateur boxing. Neither were any significant differences found with regard to platelet MAO activity, while significant differences were found in some of the social and personality traits variables.

Adult↗

PubMed1976

Thyroid function in human pregnancy. IX. Development or retardation of 7-year-old progeny of hypothyroxinemic women.

Progeny of women, whose thyroid function was studied gestationally, had psychological and/or neurologic examinations at 8 months, 4 years and 7 years of age. In more than 100 pregnancies (at least 3 per cent of total pregnancies) hypothyroxinemia occurred and was treated adequately or inadequately. Children were delivered after uncomplicated pregnancies (except hypothyroxinemia), had birth weights of at least 2,500 grams, and were excluded when postnatal insults intervened. At 8 months and 4 years progeny of inadequately treated hypothyroxinemic women had the lowest psychological scores. Now 246 7-year-old children have been examined psychologically and neurologically (earlier data on only 101). Definite trends and a few statistically lower psychological scores of progeny of inadequately treated hypothyroxinemic pregnant women are compared with better psychological scores of 7-year-old children born to euthyroid and adequately treated hypothyroxinemic women. In six sibling sets outcome was better when hypothyroxinemic women were treated with adequate thyroid replacement therapy. If a woman has a poor reproductive history, early in a subsequent gestation, thyroid status should be examined and adequate thyroid medication considered seriously.

Adolescent↗

PubMed1984

18F positron emission computed tomography in closed head injury.

Locus and extent of cerebral dysfunction in five closed head injured patients as inferred from positron emission tomography (PET) and computed tomography (CT) scan studies were compared with locus and extent inferences made in the same five patients using three additional independent sources of data. These data included: (1) clinical neurologic examination findings, (2) an extensive battery of neuropsychologic tests (including WAIS, Wechsler Memory, Halstead Reitan procedures), and (3) a comprehensive speech and language assessment battery (including the Boston Diagnostic Aphasia Examination (BDAE) and the Token Test). Neurologic, psychologic, and speech examinations were conducted within one week of the PET and CT studies. Three patients were studied at three months, one patient at six months, and one patient at two years after head injury. Follow-up CT scans were done 14 months later on four of five patients. This study supported the following major conclusions: the PET findings closely correspond with the site and extent of cerebral dysfunction inferences derived from the neurologic and behaviorial examinations but the CT findings did not; the follow-up CT scans, however, showed structural abnormalities (ie, encephalomalacia and atrophy) that were consistent with the PET, neurologic examination, and behavioral assessment findings; the study strongly supports the validity and predictive utility of neurobehavioral data which are directly pertinent to rehabilitation planning/programming in patients with closed head injury.

Brain↗

PubMed1997

Approaches to improve epidemiological studies of diabetic neuropathy: insights from the Rochester Diabetic Neuropathy Study.

The quality of the epidemiological data on diabetic neuropathies remains poor for a variety of reasons. They include variability in 1) ascertainment of diabetes, 2) the clinical varieties of diabetic patients studied, 3) characterization of neurological dysfunction, 4) abnormal limits for neurological examinations and tests, 5) minimal criteria for neuropathy, 6) correct attribution of nondiabetic neurological disease, 7) correct attribution of type of neuropathy, 8) estimating neuropathy from use of multiple tests, and 9) estimating severity of polyneuropathy. We have tried to remedy these short-comings in the Rochester Diabetic Neuropathy Study (RDNS). It was not possible to adequately characterize and quantitate diabetic polyneuropathies using only one or two clinical or test abnormalities. To estimate severity of diabetic polyneuropathy, the results of the neurological examination and abnormalities of nerve conduction, quantitative sensory tests, and quantitative autonomic tests were combined into a composite score. One begins by scoring a standard test of neurological deficits (impairments) of the lower limbs (NIS[LL]) and adds to this transformed numbers for percentile abnormality of seven good functional tests. This NIS(LL)+7 tests score appears to provide a much more comprehensive and stable numeric score by which to diagnose and grade severity of diabetic polyneuropathy than does the use of individual clinical or test results. This test score should be useful as a measure of change in diabetic polyneuropathy for purposes of medical practice, epidemiology studies, and controlled clinical trials. The staging approach that we introduced previously continues to provide an important measure of overall severity of diabetic polyneuropathy, taking into account both symptoms and impairments.

Cross-Sectional Studies↗

PubMed1981

Prepontine epithelium-lined cyst. Case report.

A 30-year-old woman presented with recurrent episodes of severe headache associated with visual disturbances. Neurological examination showed minimal neurological defects. Angiography, computerized tomography, and radioisotope cisternography revealed a large cyst in the prepontine region, which did not communicate with either the subarachnoid space or the ventricular system. Histologically, the cyst was lined by columnar and/or cuboidal cells, which contained materials positive on periodic acid-Schiff staining. Ultrastructurally, there were two types of cells, ciliated and noncillated. Characteristic findings were continuous basement membrane, microvilli covered with electron-dense material, several intercellular junctional devices, and an open intercellular space which was occasionally filled with a migrating cell. These findings would support the view that the epithelial cyst with such features was derived from endodermal tissues rather than from neuroepithelium. Electron microscopic examination is indispensable in making a correct diagnosis of intracranial cysts.

Adult↗

PubMed2002

Prognostic value of the neurologic optimality score at 9 and 18 months in preterm infants born before 31 weeks' gestation.

OBJECTIVE: The Hammersmith Infant Neurological Examination was performed in a cohort of 74 preterm infants whose gestational age ranged between 24 and 30.5 weeks. The infants were examined between 9 and 18 months' chronologic age (6-15 months' corrected age) and scored with the optimality score system previously standardized in a cohort of low-risk term infants. The aim of the study was to establish the frequency distribution of the optimality scores in this cohort and to establish whether the scores can predict locomotor function at 2 years of age. RESULTS: The results showed that this standardized neurologic examination can be performed in preterm infants as early as 9 months' chronologic age to predict motor outcome at 2 years old. The scores showed no significant association with the degree of prematurity or the age of assessment. CONCLUSION: This examination should be particularly useful in very premature infants who are at high risk of severe neurologic and developmental disabilities and for whom the early prediction of motor function can be difficult.

Gestational Age↗

PubMed1994

Mental status changes and stroke.

OBJECTIVE: To determine the frequency with which an acute confusional state is caused by a stroke and to evaluate the usefulness of obtaining computed tomography scans in this setting. DESIGN: Retrospective analysis. SETTING: Tertiary referral center. PATIENTS: The authors reviewed 127 neurology consultations requested for patients presenting with acute and apparently isolated mental status changes. The mean age was 62 years. RESULTS: Nine (7%) of the 127 patients were thought to have suffered mental status changes as a result of an acute stroke: one subarachnoid hemorrhage, and eight ischemic strokes. There was no intracerebral hemorrhage. The locations of the infarcts were: right frontoparietal (four patients), bilateral occipital (two patients), bilateral frontal (two patients), and right pontine (one patient, for whom the causality of the stroke was uncertain). Of those nine stroke patients presenting with isolated mental symptoms, six (66%) had some focal abnormality on neurologic examination. Only three (2.7%) of the 109 patients with no focal findings were ultimately diagnosed as having strokes, and one of these had a subarachnoid hemorrhage. CONCLUSIONS: Stroke was a relatively rare cause of acute confusional syndrome. The neurologic examination had a very high negative predictive value (97%) and was reliable in selecting patients who should undergo an imaging study.

Adult↗

PubMed2002

Headaches in children and adolescents.

Headaches are common during childhood and become more common and increase in frequency during adolescence. The rational, cost-effective evaluation of children with headache begins with a careful history. The first step is to identify the temporal pattern of the headache--acute, acute-recurrent, chronic-progressive, chronic-nonprogressive, or mixed. The next step is a physical and neurologic examination focusing on the optic disc, eye movements, motor asymmetry, coordination, and reflexes. Neuroimaging is not routinely warranted in the evaluation of childhood headache and should be reserved for use in children with chronic-progressive patterns or abnormalities on neurologic examination. Once the headache diagnosis is established, management must be based on the frequency and severity of headache and the impact on the patient's lifestyle. Treatment of childhood migraine includes the intermittent use of oral analgesics and antiemetics and, occasionally, daily prophylactic agents. Often, the most important therapeutic intervention is confident reassurance about the absence of serious underlying neurologic disease.

Adolescent↗

PubMed2000

Safety and feasibility of continuous infusion of remifentanil in the neurosurgical intensive care unit.

OBJECTIVE: Remifentanil is a selective mu-opioid agonist with a context-sensitive half-time of 3 to 5 minutes, independent of dose or administration duration. Other desirable effects include decreased cerebral metabolism and intracranial pressure (ICP) with minimal cerebral perfusion pressure changes. We present six cases illustrating indications for the use of remifentanil in the neurosurgical intensive care unit. METHODS: Patients received bolus doses of remifentanil of 0.05 to 1.0 microg/kg, followed by continuous infusions of 0.03 to 0.26 microg/kg/min, titrated to effect. When infusions were discontinued for neurological examinations, another bolus dose preceded infusion reinstitution. Indications for the use of remifentanil included mean arterial pressure and cerebral perfusion pressure decreases with the use of other agents (e.g., codeine or propofol) for ICP control, elevated ICP that was refractory to propofol/mannitol treatment, agitation that was unresponsive to standard therapies, and coughing that caused ICP increases after subarachnoid hemorrhage. RESULTS: Three patients experienced spontaneous intracranial bleeding (two cases of subarachnoid hemorrhage and one case of intraventricular hemorrhage), and three patients exhibited severe traumatic subdural hemorrhage. All patients recovered from the effects of remifentanil within 3 minutes after discontinuation of infusion, which allowed frequent rapid neurological assessments. Procedures for pulmonary toilet (i.e., endotracheal suctioning, postural drainage, and bronchoscopy) were performed without deleterious ICP increases or mean arterial pressure or cerebral perfusion pressure decreases during remifentanil infusions. CONCLUSION: The ultrashort duration of action of remifentanil allowed easy performance of frequent neurological examinations in the neurosurgical intensive care unit. No patient experienced deleterious hemodynamic or neurological effects as a result of remifentanil use.

Adolescent↗

PubMed2001

Neurodevelopmental status at 1 year predicts neuropsychiatric outcome at 14-15 years of age in very preterm infants.

BACKGROUND: Neurodevelopmental and behavioural problems have been repeatedly reported in very preterm survivors, often showing themselves later in childhood as poor school performance. Early identification of problems would mean that appropriate remedial therapy can be implemented. We have previously shown that neurodevelopmental status at 1 year was predictive of outcome at 8 years in a cohort of preterm infants. The aim of this paper was to see if neurodevelopmental outcome in adolescence could be predicted by assessment by 1 year in the same cohort of preterm infants. STUDY DESIGN: Prospective cohort study. SUBJECTS: 150 adolescents, born before 33 weeks gestation. OUTCOME MEASURES: Neurological examination, developmental quotient, vision and hearing by 1 year. At 14-15 years, neurological examination, school performance questionnaire, Schonnell test of reading age, a premorbid adjustment score, Rutter behavioural score and for those born from 1981, cognitive tests (WISC-R). RESULTS: A highly significant relationship existed between neurological status by 1 year and the need for extra educational provision, overall neurodevelopmental status, cognitive function in those that had their IQs measured and premorbid adjustment score of prepsychotic symptoms in adolescence. However, status at 1 year was not predictive of adolescent reading age or behavioural score. CONCLUSIONS: Neurodevelopmental assessment at 1 year is predictive of school performance and outcome in the adolescent period.

Adolescent↗

PubMed1989

Sneddon's syndrome: clinical course and outcome.

Fifteen patients with Sneddon's syndrome presenting since 1979 were re-examined. After a neurological examination, an orienting test of mental ability as well as an electroencephalogram were performed in all patients. In 10 of the 15 patients computed tomography of the brain was performed, too. Preceding reports and the results of the present study have been used to discuss the characteristics and prognosis of Sneddon's syndrome.

Adult↗

PubMed1992

Quantification of motor deficit in Parkinson's disease with a motor performance test series.

It was the purpose of the present study to quantify the expected motor deficit in parkinsonian patients with the computer assisted Motor Performance Test Series (MPS), version 05.87 by Schuhfried (1987) and to examine which of the motor test variables found correlate at a significance level of p less than 0.01 with items of "motor examination" recorded at neurological examination and "activities of daily living" of the Unified Parkinson's Disease Rating Scale (UPDRS), version 3.0. 38 patients with idiopathic Parkinson's disease (PD) stages I-IV according to Hoehn and Yahr, aged 41 to 73 years were studied. The study design, i.e. initial rating by the physician followed immediately by testing of motor function with MPS was strictly adhered to in each patient. Physician's rating of rigor and the scores of the semiquantitative tests (finger taps, hand movements and alternating movements) as expression of hypokinesia and the "activities of daily living" correlated with the 3 factors of the Motor Performance Test Series at a highly significant level independent of disease stage. Tremor is only partly and never significantly reflected in the motor data measured. Stages I-II and II-IV (Hoehn and Yahr) differ significantly in the representative data of the Motor Performance Test Series. The results of the study support the assumption that MPS is a valid instrument for quantitative measurement of the motor deficit in parkinsonian patients, but that only some subtests are "pathognomonic".

Activities of Daily Living↗

PubMed2000

Neuropsychiatric Aspects of Traumatic Brain Injury.

Traumatic brain injury (TBI) may produce a variety of neuropsychiatric problems, including impaired cognition, depression, mania, affective lability, irritability, anxiety, and psychosis. Despite the common occurrence of these symptoms following TBI, there are relatively few studies that provide clear guidance regarding management. Many symptoms (eg, irritability, affective lability, fatigue, sleep disturbance, and impaired cognition) are primarily consequences of brain injury rather than symptoms of a comorbid psychiatric disorder such as major depression. Although it is difficult to study the complicated treatments needed for such symptom complexes, we are able to recommend an approach to the evaluation and treatment of neuropsychiatric problems following traumatic brain injury. A thorough assessment of the patient is a prerequisite to the prescription of any treatment. This assessment should include a thorough developmental, psychiatric, and medication history; a detailed mental status examination; a complete neurologic examination; and quantification of neuropsychiatric symptoms using standardized and accepted inventories (eg, Neurobehavioral Rating Scale, Neuropsychiatric Inventory ). All symptoms must be evaluated in the context of the patient's premorbid history and current treatment because neuropsychiatric symptoms may be influenced by either factor or by both factors. Psychotherapy is an important component of the treatment of neuropsychiatric problems following TBI. Additionally, patients should be encouraged to become involved with local TBI support groups. When medications are prescribed, it is essential to use cautious dosing (low and slow) and empiric trials with continuous reassessment of symptoms using standardized scales and monitoring for drug-drug interactions. In general, medications with significant sedative, antidopaminergic, and anticholinergic properties should be avoided, and benzodiazepines should be used sparingly, if at all. Although patients with TBI may be particularly susceptible to adverse effects of psychopharmacologic medications, at times dosages similar to those used for the non-brain-injured psychiatric patient may be needed. When a single medication does not provide adequate relief of symptoms or cannot be tolerated at therapeutic doses, an alternative strategy is to augment the effect of one medication by using a second low-dose agent with a different mechanism of action.

Journal Article↗

PubMed2006

Growth and development of children conceived by in-vitro maturation of human oocytes.

AIMS: The objective of this study is to evaluate the physical and mental development of infants born on in-vitro maturation (IVM) programs. STUDY DESIGN: We compare 21 IVM children as study group and 21 non-IVM children as control group. We performed a general physical examination for malformations, neurological examination, developmental examination (Bayley Scales) on the IVM group and the non-IVM group. RESULTS: We found all the children with normal karyotype and without major malformation in both IVM and non-IVM groups. The mean Mental Development Index scores for IVM subjects and the comparison group were 92.71+/-10.47 and 97.19+/-8.88, respectively (p=0.074). The mean Psychomotor Development Index scores were 96.67+/-8.91 and 96.19+/-7.05, respectively (p=0.817). CONCLUSIONS: This is the first study designed to evaluate the physical growth and developmental indices of IVM children with combinational priming protocol of FSH and hCG. Our results suggest that IVM children didn't show developmental delay during infancy and early childhood.

Body Height↗

PubMed1989

Congenital malformations and psychosocial development in children conceived by in vitro fertilization.

To determine whether in vitro fertilization (IVF) as a method of conception is associated with an increased risk for congenital malformations or developmental dysfunction, we performed a general physical examination for malformations, neurologic examination, developmental examination (Bayley Scales), echocardiography, electrocardiography, abdominal ultrasound study, and, when possible, cranial ultrasound examination on a cohort of 83 IVF children and 93 matched non-IVF children. Major malformations were found in two IVF and one non-IVF subject; the rates were not significantly different. The mean Mental Development Index scores for IVF subjects and the comparison group were 115 +/- 13 and 111 +/- 13, respectively (p = 0.12). The mean Psychomotor Development Index scores were 114 +/- 14 and 108 +/- 15 (p = 0.04). Based on these small numbers but extensive evaluation, we found no association between conception by IVF and an increased risk for congenital malformations. Likewise, children conceived by IVF showed no evidence of developmental delay. Their high average achievement on the Bayley tests probably resulted from the exceptional motivation of their parents ("wantedness") and their generally high socioeconomic status.

Child Development↗

PubMed2001

Transoral transclival removal of anteriorly placed cavernous malformations of the brainstem.

BACKGROUND: The natural history of brain stem cavernous malformations is unfavorable because of their high hemorrhage rate and resulting neurological deterioration among patients. However, direct surgery of intrinsic and anteriorly situated cavernomas is hazardous and leads to a bad postoperative outcome because of trauma to lateral and dorsally situated eloquent areas of the brain stem. METHODS: We review the cases of two patients with symptomatic cavernous malformations of the anterior brain stem and describe the usefulness of a transoral-transclival approach. A 23-year-old man developed progressive hemihypaesthesia and paraesthesia, hemiparesis with gait ataxia, dysarthria, dysphonia, and dysphagia. A 38-year-old woman suffered from an acute onset of vertigo with nausea and vomiting, diplopia, and paraesthesia of the left hand and foot. In both patients, computed tomography demonstrated the presence of brain stem hemorrhage, because of cavernous malformation. Magnetic resonance imaging showed a close proximity of the lesions to the pia mater only on the ventral surface of the brain stem. RESULTS: In both patients, the cavernomas could be safely approached and completely resected via a transoral transclival route. Three months after surgery, neurological examination revealed marked neurological improvement. The 23-year-old patient showed slight gait ataxia, no hemiparesis, no cranial nerve palsies; the 38-year-old woman demonstrated no neurological symptoms except for minimal motor dysfunction of the left hand. In both cases, under perioperative prophylactic antibiotics, no meningitis was observed. The patients could subsequently return to their previous employment. CONCLUSION: The transoral transclival approach for ventrally situated brain stem cavernomas allows a largely atraumatic resection of the lesion.

Adult↗

PubMed2001

Nerve injuries of the elbow, wrist, and hand in athletes.

Upper extremity compression neuropathies are fairly rare in athletes. Initially, most can be managed conservatively. These conditions can follow direct contusion of the tissues that overlay these peripheral nerves or can result from vigorous, repetitive, athletic activity leading to tissue swelling and ischemia with nerve compression symptoms. A complete history and physical examination, including a neurologic examination, should be paramount when treating athletes with upper extremity injuries. Early diagnosis and treatment with conservative measures such as splinting, rest, activity modification, and medications can afford the athlete an earlier return to sports. Surgery can be employed when conservative treatment fails and a specific diagnosis has been ascertained.

Athletic Injuries↗