Frequency Of Neurological Disorders Research Articles

Neurological symptomatology features in patients with spine and spinal cord trauma at the thoracolumbar junction level

Background. Traumatic injuries to the thoracolumbar junction account for over 60 % of all injuries to the thoracolumbar spine. The neurological symptomatology accompanying injuries at this level is characterized by diverse patterns of both motor and sensory dysfunction, which are determined by the topographic-anatomical features of this area. Neurological deficit may be caused by conductive, segmental, and radicular disturbances. The aim of the study is to determine the nature and frequency of neurological disorders in patients with spine and spinal cord trauma at the level of the thoracolumbar junction, depending on the likely substrate of the traumatic impact. Materials and methods. An analysis of the neurological status assessment was conducted in 101 patients who suffered spine and spinal cord trauma at the level of the thoracolumbar junction. The average age of the patients was 41 years (95% confidence interval 36–44). Most patients were male (75.25 %). The number of motor segments with signs of upper and lower motor neuron lesion, and dermatomes with sensory impairment of radicular, segmental, or conductive types were determined. Results. It was found that 83.5 % of motor segments with dysfunction had clinical signs of lower motor neuron lesion, 41.3 % of dermatomes with sensory impairment had traumatic root damage, 57.9 % of dermatomes showed impairments of a segmental type, and 28.9 % were of a conductive type. Conclusions. The data obtained indicate a significant role of segmental disturbances in forming the symptoms in patients with spine and spinal cord trauma at the level of the thoracolumbar junction.

ADAPTED GRIFFITHS SCALE AS A CURRENT EXPERIENCE OF EVALUATION OF PSYCHOMOTOR DEVELOPMENT OF PRESCHOOL CHILDREN

Introduction. Premature infants are a special category of children with an inherent morpho-functional immaturity and specific pathological conditions that cause significant differences in survival, morbidity and consequences of caring for these infants compared to children of other weight categories. In the structure of long-term adverse effects of premature birth remains a high frequency of neurological disorders that require further improvement of diagnostic methods and timely correction to improve the prognosis of further development. Despite the development of numerous assessment tools for prognosis of long- term adverse effects of premature infants and techniques determining the extent of violations during the last three decades, there was no study providing a comprehensive overview of those tools, as well as their strengths and weaknesses.Aim. Improve the long-term effects of preterm birth by using an adapted Griffiths scale in preschool children. Materials and methods. An assessment of the psychomotor development of 105 preschool children was estimated. Assessment of psychomotor development was performed using an adapted Griffiths scale and a traditional method. During the study, this category of children was under the supervision of follow-up doctors to systematically assess their health. Dynamic examination was performed during the first year of life every 3 months, from the second to the sixth year of life - according to the individual rehabilitation plan. Patients were divided into 3 groups depending on the severity of disabling pathology.Results. An analysis of indicators of psychomotor development (traditional methods) of preschool children born prematurely, which were divided into 3 groups according to the severity of disabling pathology: Group A Children with severe long-term consequences that led to disability - 54 (51.4 %)Group B. Children with long-term consequences that require correction - 24 (22.8 %)Group C. Children with long-term consequences that do not significantly affect the general condition - 27 (25.7 %). According to the results of the survey, it can be revealed that more than 70% of respondents had the equivalent of delayed psychomotor development of various patterns. Тhe analysis of the assessment of psychomotor development showed that the structure of the causes of delayed psychomotor development in preschool children had the same trend for different methods of examination. However, the Griffiths adapted assessment demonstrates more accurate outcomes of a certain patient, makes it possible to quickly detect long-term adverse effects of preterm birth, and gives recommendations for infants and families to develop an individual rehabilitation and habilitation program, and examinations in dynamics.Conclusions. It has been established that the adapted Griffiths psychomotor development scale is a valid diagnostic tool in the cohort of preschool children in order to determine psychomotor development indicators, calculate the child's intellectual coefficient and form an individual patient profile.

Toxic Metal -Mediated Neurodegradation: A Focus on Glutathione and GST Gene Variants.

Increasing pieces of evidence have supported those chemicals from industrial, agricultural wastes and organoleptic activities play important role in the development of neurological disorders. The frequency of neurological disorders is increased to a much extent in recent years with the advancements in science and technology. Google Scholar, PubMed, and Scopus databases were selected to search the relevant information by using keywords including "Heavy metals", "Neurotoxicity", "Glutathione", "Glutathione AND Neurodegenerative disorders" etc. Heavy metals are particularly recognized as a major resource of toxicities during the stage of early pregnancy where a fetus gets exposed to them from maternal activities and circulation. As infants have a weak immune system and cannot respond to the specific challenge as faced by the body during mercury, zinc, iron, and cadmium exposure. Daily diet and drinking habits in addition to industrial activities also form a major field of study under investigation. This study aims to investigate the role of these metals in the accumulation of pollutants in the brain, liver, and kidneys hence leading to serious consequences. Moreover, their prevalence in teenagers that are under the age of ten years is being observed that leads them to learn, writing, and intellectual abilities. Males are more affected due to their hormonal differences. The role of the GST gene in the development of cognitive conditions and its phenotypes has been discussed thoroughly in this review. The mutations of GST lead to the accumulation of peroxides and superoxides which exacerbate oxidative damage to cells. Binding of toxic metals to GSH genes and the role of glutathione transferase genes is was demonstrated in this review.

Heterogeneous Neurological Disorders Associated with the SARS-CoV-2 Infection: A Case Report

The novel coronavirus SARS-CoV-2 and the disease it causes, COVID-19, along with damage to the respiratory system, can lead to disorders of the central and peripheral nervous system, as well as the muscular system. The article presents literature data and the authors’ observations of the course of neurological disorders in a patient with COVID-19. This study found that there is a link between the severity of COVID-19 and the intensity and frequency of neurological disorders.

Neurological disorders in autism: A systematic review and meta-analysis.

Neurological disorders, such as epilepsy and cerebral palsy, have been reported to occur among individuals with autism beyond chance and may have an impact on daily living across the lifespan. Although there has been research investigating neurological disorders in autism, the findings are not always conclusive. Previous summaries of existing studies have not evaluated the full range of neurological disorders. This study aimed to comprehensively explore the neurological problems appearing in autism to provide updated information that is needed for better healthcare and support in this population. We looked at already published studies focusing on risk or frequency of neurological disorders in autism. Our results suggest that individuals with autism are more likely than the general population to have a range of neurological disorders, including epilepsy, macrocephaly, hydrocephalus, cerebral palsy, migraine/headache, and inborn abnormalities of the nervous system. In order to provide individualized healthcare and support of high quality to individuals diagnosed with autism, health care professionals and other support providers need to be attentive to neurological complications. To further improve our understanding about the link between autism and neurological disorders, future research should follow the neurological health of children who are diagnosed with or are at increased likelihood of autism.

Neurological Disorders among the Outpatients Living with Human Immuno Deficiency Virus (HIV) Following at the Parakou Hospital in 2014

Objective: To study the frequency of neurological disorders associated to HIV infection. Methods: This cross-sectional study was carried out from 16th June to 16th September 2014 and included all 289 HIV-outpatients admitted to the Parakou University hospital. All data were recorded, physical examination was performed and the medical sheet of each patient was assessed. The diagnosis of neurological disorder (central and peripheral) was based on clinical features, past medical history, biological test and CT-scan data after multidisciplinary staff. Epi-data and Epi-Info 6.04C were used to perform analysis. Results: They were 73 (25.3%) male with a mean age of 38.0 years +/− 10.1 years. The mean duration of disease was 48.5 months +/− 37.1 months. 150 (51.9%) of them were at Stage 3 of the disease. All patients (99.7%) were infected by HIV1, 188 (76.1%) had CD4 cells at the onset of the follow-up less than 350 cells/mm3 and 260 (90.0%) were on ART. Among the 289 patients, 110 had at least one neurological disorder, the frequency of neurological disorders was 38.1%. The main neurological disorders were peripheral neuropathy (34.3%), isolated headache (5.2%), stroke (0.7%), cerebral toxoplasmosis (0.7%) and one case of dementia (0.7%). The main associated factors were the age of patient and exposure on neurotoxic drug, especially ART. Conclusion: The neurological disorders were more frequent among HIV patients with a high frequency of peripheral neuropathy probably due to ART.

Frequency of Neurological Disorders and Related EEG Finding in a Tertiary Care Hospital of Karachi

Background: Electroencephalogram (EEG) is defined as a method of detecting brain waves signifying the electrical conductivity of the brain. Globally, EEG is used to further classify neuropsychiatric disorders. Objective: To evaluate the prevalence of abnormal EEGs and related neurological disorders and it’s correlation with age and gender. Methodology: A descriptive cross sectional study was conducted in Neurology department, Ziauddin hospital, Karachi, Pakistan from June 2018 to May 2019. A total of 440 individuals based on inclusion criteria were selected through Non-probability consecutive sampling. Informed consent was obtained from study participants. A self-designed structured questionnaire and EEG record were used for data collection. Data were entered and analyzed using SPSS v 20. Mean and standard deviation was calculated for numerical variable and frequency and percentages were calculated for categorical variable. Independent t-test and chi square was used to check association of abnormal EEG with age and gender. P value of ≤0.05 was considered statistically significant. Results: The mean age of study participants was 52.98 ± 22.68 years. There were 54.5% (n = 240) males. Approximately 45.2% (n = 199) participants had predisposing condition which can lead to abnormal EEG. EEG records of 39.8% (n = 175) of the patients was normal while 60.2% (n = 265) had abnormal records. Diffuse neuronal dysfunction consistent with encephalopathy was found in 45.2%. Mild neuronal dysfunction consistent with encephalopathy accounted for 33.5% of cases. Significant difference was found in Abnormal EEG among different age group (p = 0.01). Chi square shows an association between abnormal EEG and male gender (p = 0.025). Conclusion: EEG plays a vital role in the diagnosis of neuropsychiatric conditions in developing countries. EEGs can further help to determine the relationship of different neuropsychiatric conditions and can help in early diagnosis and better prognosis.

Hospital Mortality Among Elderly Patients Admitted With Neurological Disorders Was Not Predicted by any Particular Diagnosis in a Tertiary Medical Center.

Background:Neurological disorders (NDs) are associated with high hospital mortality. We aimed to identify predictors of hospital mortality among elderly inpatients with NDs.Methods:Patients aged ≥60 years admitted to the hospital between January 1, 2009 and December 31, 2010 with acute NDs, chronic NDs as underpinnings of acute clinical disorders, and neurological complications of other diseases were studied. We analyzed demographic data, NDs, and comorbidities as independent predictors of hospital mortality. Logistic regression was performed for multivariable analysis.Results:Overall, 1540 NDs and 2679 comorbidities were identified among 798 inpatients aged ≥ 60 years (mean 75.8±9.1). Of these, 54.5% were female. Diagnostic frequency of NDs ranged between 0.3% and 50.8%. Diagnostic frequency of comorbidities ranged from 5.6% to 84.5%. Comorbidities varied from 0 to 9 per patient (90% of patients had ≥2 comorbidities), mean 3.2±1.47(CI, 3.1-3.3). Patients with multimorbidities presented with a mean of 4.7±1.7 morbidities per patient. Each ND and comorbidity were associated with high hospital mortality, producing narrow ranges between the lowest and highest incidences of death (hospital mortality = 18%) (95% CI, 15%-21%). After multivariable analysis, advanced age (P<0.001) and low socioeconomic status (P=0.003) were recognized as predictors of mortality, totaling 9% of the variables associated with hospital mortality.Conclusion:Neither a particular ND nor an individual comorbidity predicted hospital mortality. Age and low socioeconomic class accounted for 9% of predictors. We suggest evaluating whether functional, cognitive, or comorbidity scores will improve the risk model of hospital mortality in elderly patients admitted with ND.

Frequency of Neurological Disorders in Bullous Pemphigoid Patients: A Cross-Sectional Study.

Background Bullous pemphigoid (BP) is an autoimmune subepidermal blistering skin disorder which occurs mostly in the elderly. Several studies have reported an association between BP and neurological disorders (ND). Objective The purpose of this study was to evaluate the association between BP and neurological disorders in Iranian patients. Methods In this cross-sectional study, 87 patients with BP were enrolled. They were compared to 184 controls. Statistical analysis was done by SPSS statistical software version 19. Results Out of 87 patients with BP, 17 (19.5%) had at least one neurological disease. Cerebrovascular accident (CVA) was the most common neurological disease that was seen in 7 patients (8.0%) in the case group and 4 (2.1%) in the control group. The incidence of CVA was significantly different between BP patients and the control group (P = 0.022). Dementia was observed in 6 patients in the case group (16.8%) and 2 (1.0%) in the control group. The incidence of dementia was significantly different between BP patients and the control group (P = 0.008). In this study, the incidences of Parkinson's disease (P = 0.830), epilepsy (P = 0.067), and multiple sclerosis (P = 0.326) were not statistically significant between the two groups. Conclusion The incidence of CVA and dementia in patients with BP compared to the control group was significantly higher.

Вплив порушень функціональної активності гіпофізарно-тиреоїдної системи на нервово-психічний розвиток та неврологічний статус дітей раннього віку

The objective of investigation. To study the relationship between the functional state of the pituitary-thyroid axis, the state of the nervous system and the level of mental development of young children. Materials and Methods. In the original survey 123 children aged from 2 to 3.5 months participated, which came to the nurture children's home during the period from 2010 to 2012 as children deprived of parental care. Results and Discussion. The high frequency of neurological disorders in children deprived of parental care was demonstrated (94.1±2.2%). The most commonly the syndrome of static, kinetic, mental and pre-speech retardation was diagnosed (49.2±4.7%, p<0.001). Onet psychological development, pituitary-thyroid system; young children.

High Titers of Autoantibodies to Glutamate Decarboxylase in Type 1 Diabetes Patients: Epitope Analysis and Inhibition of Enzyme Activity

Autoantibodies to glutamate decarboxylase (GAD65Ab) are found in patients with autoimmune neurological disorders or type 1 diabetes. The correct diagnosis of GAD65Ab-associated neurological disorders is often delayed by the variability of symptoms and a lack of diagnostic markers. We hypothesized that the frequency of neurological disorders with high GAD65Ab titers is significantly higher than currently recognized. We analyzed GAD65Ab titer, GAD65 enzyme activity inhibition, and GAD65Ab epitope pattern in a cohort of type 1 diabetes patients (n = 100) and correlated our findings with neurological symptoms and diseases. Overall, 43% (43/100) of patients had detectable GAD65Ab titers (median = 400 U/mL, range: 142-250,000 U/mL). The GAD65Ab titers in 10 type 1 diabetes patients exceeded the 90th percentile of the cohort (2,000-250,000 U/mL). Sera of these 10 patients were analyzed for their GAD65Ab epitope specificity and their ability to inhibit GAD65 enzyme activity in vitro. GAD65Ab of 5 patients inhibited the enzyme activity significantly (by 34-55%). Three patients complained of muscle stiffness and pain, which was documented in 2 of these patients. Based on our findings, we suggest that neurological disorders with high GAD65Ab titers are more frequent in type 1 diabetes patients than currently recognized.

Carences en cobalamine : aspects neurologiques chez 27 patients

Introduction Combined medullar sclerosis, together with peripheral sensory neuropathies, is the most common neurological manifestation observed in cobalamin deficiency. Biermer’s disease is the predominant cause. Other clinical and etiological aspects are nevertheless frequent, although underestimated. Methods This retrospective study included patients with neurological symptoms and cobalamin (B12 vitamin) deficiency confirmed by laboratory tests collected over a period of 11 years. Results Twenty-seven cases were analyzed. Mean age was 47 years and there were 11 women and 16 men. Distribution of the neurological syndromes was: combined medullar sclerosis in 18 patients (67%), sensory neuropathies in 30% of cases and sensory-motor neuropathies in 15%. One patient had fronto-subcortical dementia with good improvement after vitamin replacement. In addition, autonomic dysfunction was noted in six patients (orthostatic symptomatic hypotension and/or urinary dysfunction and/or erectile failure). Dysautonomia revealed cobalamin deficiency in three patients with a good and fast response to the cobalamin therapy in all cases. Biermer’s disease was diagnosed in 17 patients (63%) and a likely syndrome of nondissociation of cobalamin in two patients. One patient had Crohn’s disease and no etiology was found in seven patients. In five patients (19%), nitrous oxide undoubtedly induced decompensation of latent cobalamin deficiency; four after a general anesthesia and one by chronic professional exposure. Outcome was very good in 46% of patients after vitamin replacement, particularly if treatment was started rapidly. Discussion The findings in this series highlight the frequency of autonomic dysfunction sometimes revealing cobalamin deficiency with a fast and good response to vitamin replacement and the frequency of neurological disorders following decompensation triggered by general anesthesia using nitrous oxide in patients with latent cobalamin deficiency.

Fetal and Neonatal Brain Injury: Mechanisms, Management and the Risks of Practice, third edition

edited by David K. Stevenson, William E. Benitz, and Philip Sunshine, 926 pp., New York, Cambridge University Press, 2003, $200 Neonatal neurology is an emerging subspecialty of pediatric neurology that reflects the uniqueness of this particular population. This uniqueness is manifested in the clinical features of neurologic dysfunction encountered in neonates as well as limitations in clinical examination, altered patterns of pathogenetic mechanisms and responses to perturbation, the high frequency of neurologic disorders in the newborn, and the lifelong morbidity that occurs …

Neurologic disorders in 432 consecutive patients with small cell lung carcinoma.

Neurologic complications are an important cause of morbidity and possibly also mortality in patients with small cell lung carcinoma (SCLC). The current study was undertaken to prospectively investigate survival and the frequency of neurologic disorders in patients with SCLC. Between October 1980 and September 2001, 432 consecutive patients with microscopically proven SCLC were included in the current study. Patients underwent neurologic examinations on a regular basis prior to, during, and after treatment. Routine imaging of the brain (computed tomography or magnetic resonance imaging) was performed before and after systemic therapy. A neurologic disorder was diagnosed in approximately 56% of the SCLC patients. In nearly half of the cases, the neurologic disorder already was present at the time of diagnosis. Brain metastases (BM) were diagnosed most frequently. Seventy-four patients (18%) had BM at the time of diagnosis; in 20 of these patients, the BM did not demonstrate clinical signs. Another 101 patients developed BM during follow-up. The 2-year cumulative risk of BM reached 49% for patients with limited disease (LD) and 65% for patients with extensive disease (ED). Patients with BM as the only site of disease dissemination were found to have a poorer survival compared with LD patients. The majority of the nonmetastatic disorders preceded the diagnosis of SCLC. The syndrome of inappropriate antidiuretic hormone secretion (SIADH) was diagnosed most frequently. In this prospective study, neurologic disorders were diagnosed in greater than half of the patients with SCLC. BM were detected most frequently. Approximately 18% of the patients were found to have BM at the time of diagnosis. In approximately 33% of the cases, these BM did not cause symptoms. BM were found to have a negative effect on survival in patients with SCLC.

Frequency of neurologic disorders in the neonatal intensive care unit.

Neonatal intensive care unit survival rates have improved significantly over the past decade. This improvement primarily reflects declining mortality rates among preterm infants. Neurologic morbidity increases with prematurity and is the major predictor of long-term disability. Accordingly, concern has been expressed that the burden of neurologic dysfunction among contemporary neonatal intensive care unit survivors may be increasing. To define the trends of neurologic disorders in the contemporary neonatal intensive care unit, all 4164 admissions between 1986 and 1995 to a tertiary neonatal intensive care unit were examined. Neonatal intensive care unit admissions (413 +/- 49 per year), proportion of births at less than 37 weeks (70 +/- 3% per year), and referral patterns were stable between 1986 and 1995. Over the study period, 773 (18%) of 4164 neonatal intensive care unit infants had a total of 1062 neurologic disorders. The neonatal intensive care unit mortality rate declined from 12% in 1986 to 4.2% in 1995 (P < .01). Neurologic disorders declined, from 27% of infants born in 1986 to 12% in 1995 (P < .001): 356 had seizures (14% in 1986 to 4% in 1995; P < .001), 235 had hypoxic-ischemic encephalopathy (8% in 1986 to 4% in 1995, P < .01), and 167 had intraventricular hemorrhage (7% in 1986 to 1.4% in 1995, P < .005). Frequency of congenital or chromosomal aberration affecting the nervous system was relatively constant (4.5% per year). Despite a three-fold improvement in neonatal intensive care unit survival between 1986 and 1995, the frequency of perinatally acquired neurologic disorders declined by more than 50%.

Profile of a Neurology Residency

The pattern and frequency of patient encounters during the Boston (Mass) University adult neurology residency program (1988 to 1991) for one resident was compared with that in general neurology practice as well as with the frequency of neurologic disorders in the US population. A total of 1332 new patients (85% adult, 15% pediatric) were seen during a 3-year period. This total represented 970 inpatients (73% of all patients) and 362 outpatients (27%). The resident encountered more patients in the hospital (7.5 admissions or 13 consultations per week) and fewer patients in the clinic (2.5 new outpatients per week) than does the average community neurologist (two admissions, 8.7 consultations, and 13.2 new outpatients). The most common diagnosis for an admission encounter was acute ischemic infarct; for a consultation, metabolic encephalopathy; and for an outpatient encounter, radiculopathy. Less prevalent neurologic disorders in the United States (eg, cognitive, demyelinating, movement, and neoplastic disorders) were encountered more frequently in residency than were very prevalent neurologic disorders (eg, headache and trauma). This is the first reported summary of all patients one resident actually encountered during neurology training. The patient encounter profile suggests that this residency training overemphasized acute inpatient care of less prevalent neurologic disorders compared with outpatient care of more prevalent disorders commonly seen in a neurology practice. Accumulation of similar data from other residencies and practicing neurologists can help residency directors assess the changing needs of residents in training and guide curriculum in response to changes in practice patterns.