scholarly journals Application of KANET in Special Cases: Part I

2013 ◽  
Vol 7 (2) ◽  
pp. 200-207
Author(s):  
Aris Antsaklis ◽  
Panagiotis Antsaklis ◽  
Nicolaos Papantoniou
Keyword(s):  
Nervous System ◽  
Neurological Impairment ◽  
Detailed Examination ◽  
Fetal Outcome ◽  
Fetal Life ◽  
Perinatal Medicine ◽  
4D Ultrasound ◽  
Special Cases ◽  
Ultrasound Findings ◽  
Ultrasound Technology

ABSTRACT The detection of neurological impairment during fetal life has been a great challenge in perinatal medicine for many years. Evolution of ultrasound technology has allowed a more detailed examination of the fetal nervous system and earlier detection of central nervous system (CNS) abnormalities. However, overdiagnosis of CNS malformations or variations can be quite confusing from time to time, as we cannot always be sure how these may affect the fetus and as a result we cannot always advise adequately the parents of the affected fetuses about the prognosis. Defining normal and abnormal fetal neurological function in utero in order to better predict which fetuses are at risk for adverse neurological outcome could assist with the evaluation of the fetal outcome. Four-dimensional (4D) ultrasound has been used for the assessment of normal neurobehavioral development and has identified characteristics of the fetus that could predict neurological developmental dysfunction. Kurjak antenatal neurodevelopmental test (KANET) is a method that has been shown to offer great advantages for the assessment of fetal neurobehavior, and the findings of KANET have been verified in many studies with postnatal assessments. We present a series of cases where KANET could better improve the evaluation of the prognosis that was made based on ultrasound findings. How to cite this article Antsaklis P, Antsaklis A, Papantoniou N, Kurjak A. Application of KANET in Special Cases: Part I. Donald School J Ultrasound Obstet Gynecol 2013;7(2):200-207.

Multicentric studies of the fetal neurobehavior by KANET test

2017 ◽  
Vol 45 (6) ◽  
Author(s):  
Asim Kurjak ◽  
Panos Antsaklis ◽  
Milan Stanojevic ◽  
Radu Vladareanu ◽  
Simona Vladareanu ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Real Time ◽  
Diagnostic Tool ◽  
Neurological Disorders ◽  
Neurological Impairment ◽  
Everyday Clinical Practice ◽  
Perinatal Medicine ◽  
The Past ◽  
4D Ultrasound

AbstractAssessment of fetal neurobehavior and detection of neurological impairment prenatally has been a great challenge in perinatal medicine. The evolution of four-dimensional (4D) ultrasound not only enabled a better visualization of fetal anatomy but also allowed the study of fetal behavior in real time. Kurjak Antenatal Neurodevelopmental Test (KANET) was developed for the assessment of fetal neurobehavior and the detection of neurological disorders, based on the assessment of the fetus by application of 4D ultrasound in the same way that a neonate is assessed postnatally. KANET is a method that has been applied for the past 10 years and studies show that it is a strong diagnostic tool and can be introduced into everyday clinical practice. We present all data from studies performed up to now on KANET.

Central Nerve System Impairment, AMA Guides, Sixth Edition: An Overview

2018 ◽  
Vol 23 (1) ◽  
pp. 10-13
Author(s):  
James B. Talmage ◽  
Jay Blaisdell
Keyword(s):  
Spinal Cord ◽  
Central Nervous System ◽  
Nervous System ◽  
Neurological Impairment ◽  
Sixth Edition ◽  
Central Nerve System ◽  
The Central Nervous System ◽  
The One ◽  
Nerve System ◽  
The Brain

Abstract Injuries that affect the central nervous system (CNS) can be catastrophic because they involve the brain or spinal cord, and determining the underlying clinical cause of impairment is essential in using the AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), in part because the AMA Guides addresses neurological impairment in several chapters. Unlike the musculoskeletal chapters, Chapter 13, The Central and Peripheral Nervous System, does not use grades, grade modifiers, and a net adjustment formula; rather the chapter uses an approach that is similar to that in prior editions of the AMA Guides. The following steps can be used to perform a CNS rating: 1) evaluate all four major categories of cerebral impairment, and choose the one that is most severe; 2) rate the single most severe cerebral impairment of the four major categories; 3) rate all other impairments that are due to neurogenic problems; and 4) combine the rating of the single most severe category of cerebral impairment with the ratings of all other impairments. Because some neurological dysfunctions are rated elsewhere in the AMA Guides, Sixth Edition, the evaluator may consult Table 13-1 to verify the appropriate chapter to use.

scholarly journals The Spectrum of Congenital Central Nervous System Anomalies Among Stillborn: An Autopsy Based Study

2021 ◽  
pp. 097275312199016
Author(s):  
S. P. Vinutha ◽  
D. Narayanappa ◽  
G. V. Manjunath ◽  
M. S. Sujatha ◽  
M. C. Sapna Patel ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Congenital Anomalies ◽  
Developmental Process ◽  
Holistic Approach ◽  
Fetal Autopsy ◽  
Exact Test ◽  
Medical College ◽  
Ultrasound Findings ◽  
Cns Anomalies

Background: Congenital central nervous system (CNS) anomalies are the structural or functional abnormalities of the brain and spinal cord that occur during the intrauterine developmental process. Purpose: The present study aims to detect the prevalence of congenital CNS anomalies among stillborn fetuses, the association between congenital anomalies and maternal factors, and also the association between autopsy and ultrasound findings. Methods: This study was conducted on 50 stillborn fetuses, obtained from the Department of Obstetrics and Gynecology at JSS Medical College and Hospital, Mysuru. The fetuses were fixed in 10% formalin and autopsies were performed as per the standard fetal autopsy protocol. The congenital CNS anomalies were studied in detail. Results: CNS anomalies were the most common congenital anomalies observed. Out of the total 50 stillborn fetuses studied, CNS anomalies were found in 17 fetuses and their occurrence was more common among male stillborn than females. Meningomyelocele was the most common anomaly, followed by anencephaly. The other anomalies documented were meningocele, encephalocele, meningoencephalocele, agenesis of the corpus callosum, craniorachischisis, bifid cerebellum with hypoplastic vermis, holoprosencephaly, and sirenomelia. Fisher’s exact test showed a significant association between maternal hypothyroidism and congenital CNS anomalies ( P < .05). The autopsy confirmed the ultrasound findings in 40 (80%) fetuses. There were significant additional findings observed in seven (14%) fetal autopsies and ultrasound diagnosis completely changed in three (6%) cases, after the final autopsy procedure. Conclusion: The fetal autopsy is the single most directly evident investigation, which gives information that changes or significantly improves the clinical diagnosis. A multidisciplinary holistic approach toward pregnancy will help to detect any kind of abnormality in the fetus and thus to take a timely decision toward the management.

scholarly journals Synapsin I (protein I), a nerve terminal-specific phosphoprotein. I. Its general distribution in synapses of the central and peripheral nervous system demonstrated by immunofluorescence in frozen and plastic sections.

1983 ◽  
Vol 96 (5) ◽  
pp. 1337-1354 ◽  
Author(s):  
P De Camilli ◽  
R Cameron ◽  
P Greengard
Keyword(s):  
Nervous System ◽  
Detailed Examination ◽  
Specific Protein ◽  
Nerve Cells ◽  
General Distribution ◽  
Synapsin I ◽  
Nervous Systems ◽  
Synaptic Region ◽  
Specific Localization ◽  
Peripheral Nervous Systems

Synapsin I (formerly referred to as protein I) is the collective name for two almost identical phosphoproteins, synapsin Ia and synapsin Ib (protein Ia and protein Ib), present in the nervous system. Synapsin I has previously been shown by immunoperoxidase studies (De Camilli, P., T. Ueda, F. E. Bloom, E. Battenberg, and P. Greengard, 1979, Proc. Natl. Acad. Sci. USA, 76:5977-5981; Bloom, F. E., T. Ueda, E. Battenberg, and P. Greengard, 1979, Proc. Natl. Acad. Sci. USA 76:5982-5986) to be a neuron-specific protein, present in both the central and peripheral nervous systems and concentrated in the synaptic region of nerve cells. In those preliminary studies, the occurrence of synapsin I could be demonstrated in only a portion of synapses. We have now carried out a detailed examination of the distribution of synapsin I immunoreactivity in the central and peripheral nervous systems. In this study we have attempted to maximize the level of resolution of immunohistochemical light microscopy images in order to estimate the proportion of immunoreactive synapses and to establish their precise distribution. Optimal results were obtained by the use of immunofluorescence in semithin sections (approximately 1 micron) prepared from Epon-embedded nonosmicated tissues after the Epon had been removed. Our results confirm the previous observations on the specific localization of synapsin I in nerve cells and synapses. In addition, the results strongly suggest that, with a few possible exceptions involving highly specialized neurons, all synapses contain synapsin I. Finally, immunocytochemical experiments indicate that synapsin I appearance in the various regions of the developing nervous system correlates topographically and temporally with the appearance of synapses. In two accompanying papers (De Camilli, P., S. M. Harris, Jr., W. B. Huttner, and P. Greengard, and Huttner, W. B., W. Schiebler, P. Greengard, and P. De Camilli, 1983, J. Cell Biol. 96:1355-1373 and 1374-1388, respectively), evidence is presented that synapsin I is specifically associated with synaptic vesicles in nerve endings.

scholarly journals Ultrasound Evaluation of Pregnancy in the First Trimester

2010 ◽  
Vol 4 (1) ◽  
pp. 17-28 ◽  
Author(s):  
George M Graham
Keyword(s):  
Early Pregnancy ◽  
First Trimester ◽  
Transvaginal Sonography ◽  
List Type ◽  
Intrauterine Pregnancy ◽  
Ultrasound Evaluation ◽  
Early Pregnancy Failure ◽  
Ultrasound Findings ◽  
Ultrasound Technology ◽  
First Trimester Ultrasound

Abstract Improvements in ultrasound technology, including transvaginal sonography and higher frequency probes, have led to a better understanding of early pregnancy development. These advances and the increasing availability of ultrasound allow women to have an earlier and more accurate assessment of their pregnancy. First trimester sonographic signs have been identified that can be used to reassure women that their pregnancy is progressing normally or counsel them that their pregnancy will fail. In addition, first trimester ultrasound can accurately predict the type of twinning in multiple gestations, allowing for appropriate counseling and management. Objectives Know the first trimester ultrasound findings of a normal intrauterine pregnancy Understand the ultrasound findings that diagnose an early pregnancy failure Know the ultrasound criteria used to diagnose a multifetal gestation

scholarly journals Central and peripheral nervous system involvement by COVID-19: A systematic review of the pathophysiology, clinical manifestations, neuropathology, neuroimaging, electrophysiology, and cerebrospinal fluid findings

2020 ◽  
Author(s):  
Juan I. Guerrero ◽  
Luis A. Barragán ◽  
Juan D. Martínez ◽  
Juan P. Montoya ◽  
Alejandra Peña ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cerebrospinal Fluid ◽  
Nervous System ◽  
Peripheral Nervous System ◽  
Evidence Synthesis ◽  
Clinical Manifestations ◽  
Neurological Impairment ◽  
Neurological Involvement ◽  
Categorical Analysis ◽  
System Involvement

Abstract Background: SARS-CoV-2 can affect the human brain and other neurological structures. An increasing number of publications report neurological manifestations in patients with COVID-19. However, no studies have comprehensively reviewed the clinical and paraclinical characteristics of the central and peripheral nervous system's involvement in these patients. This study aimed to describe the features of the central and peripheral nervous system involvement by COVID-19 in terms of pathophysiology, clinical manifestations, neuropathology, neuroimaging, electrophysiology, and cerebrospinal fluid findings.Methods: We conducted a comprehensive systematic review of all the original studies reporting patients with neurological involvement by COVID-19, from December 2019 to June 2020, without language restriction. We excluded studies with animal subjects, studies not related to the nervous system, and opinion articles. Data analysis combined descriptive measures, frequency measures, central tendency measures, and dispersion measures for all studies reporting neurological conditions and abnormal ancillary tests in patients with confirmed COVID-19.Results: A total of 143 observational and descriptive studies reported central and peripheral nervous system involvement by COVID-19 in 10723 patients. Fifty-one studies described pathophysiologic mechanisms of neurological involvement by COVID-19, 119 focused on clinical manifestations, 4 described neuropathology findings, 62 described neuroimaging findings, 28 electrophysiology findings, and 60 studies reported cerebrospinal fluid results. The reviewed studies reflect a significant prevalence of the nervous system's involvement in patients with COVID-19, ranging from 22.5% to 36.4% among different studies, without mortality rates explicitly associated with neurological involvement by SARS-COV-2. We thoroughly describe the clinical and paraclinical characteristics of neurological involvement in these patients. Conclusions: Our evidence synthesis led to a categorical analysis of the central and peripheral involvement by COVID-19 and provided a comprehensive explanation of the reported pathophysiological mechanisms by which SARS-CoV-2 infection may cause neurological impairment. International collaborative efforts and exhaustive neurological registries will enhance the translational knowledge of COVID-19's CNS and PNS involvement and generate strategies for therapeutic decision-making.Registration: This review is registered in PROSPERO (CRD42020193140), July 24, 2020.

scholarly journals Paroxysmal Autonomic Instability with Dystonia after Pneumococcal Meningoencephalitis

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Layal Safadieh ◽  
Rana Sharara-Chami ◽  
Omar Dabbagh
Keyword(s):  
Traumatic Brain Injury ◽  
Nervous System ◽  
Streptococcus Pneumoniae ◽  
Basal Ganglia ◽  
Bacterial Meningitis ◽  
Neurological Impairment ◽  
Common Cause ◽  
First Case ◽  
Autonomic Instability ◽  
Severe Neurological Impairment

Streptococcus pneumoniaeis a common cause of bacterial meningitis, frequently resulting in severe neurological impairment. A seven-month-old child presenting withStreptococcus pneumoniaemeningoencephalitis developed right basal ganglia and hypothalamic infarctions. Daily episodes of agitation, hypertension, tachycardia, diaphoresis, hyperthermia, and decerebrate posturing were observed. The diagnosis ofparoxysmal autonomic instability with dystoniawas established. The patient responded to clonidine, baclofen, and benzodiazepines. Although this entity has been reported in association with traumatic brain injury, and as a sequel to some nervous system infections, this is the first case, to our knowledge, associated with pneumococcal meningoencephalitis.

Clinical study of fetal neurobehavior by the KANET test

2018 ◽  
Vol 46 (6) ◽  
pp. 631-639
Author(s):  
Raul Moreira Neto ◽  
Selma Porovic
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Prenatal Diagnosis ◽  
Behavior Pattern ◽  
Review Of Literature ◽  
Fetal Medicine ◽  
Morphological Studies ◽  
4D Ultrasound ◽  
Spontaneous Movements

AbstractFetal neurology is evolving as an area of great interest in prenatal diagnosis and fetal medicine. The identification and diagnosis of brain damage prenatally has been a great challenge in obstetrics for many years. Investigations of fetal behavior in comparison with morphological studies led to the conclusion that fetal behavioral patterns directly reflect developmental and maturational processes of the fetal central nervous system (CNS). Four-dimensional (4D) ultrasound has greatly improved the assessment of the quality of the fetal spontaneous movements, and enabled a better evaluation of fetal behavior. The assessment of normal neurobehavioral development by 4D ultrasound provided the opportunity to investigate functional characteristics of the fetus that could predict neurological developmental dysfunction. Some studies have already been carried out to evaluate this new methodology in the observation of fetal behavior during different stages of gestation, in an attempt to better understand the relationships between the maturation of the CNS of the fetus and its implications on its behavior pattern. We present a review of literature on fetal behavior by 4D ultrasound.

Arsenic exposure with reference to neurological impairment: an overview

2019 ◽  
Vol 34 (4) ◽  
pp. 403-414
Author(s):  
Anupama Sharma ◽  
Sunil Kumar
Keyword(s):  
Nervous System ◽  
Drinking Water ◽  
Memory Impairment ◽  
Environmental Problem ◽  
Arsenic Exposure ◽  
Neurological Impairment ◽  
The World ◽  
Contaminated Drinking Water ◽  
Existing Data ◽  
As Toxicity

Abstract Arsenic (As) toxicity has become a public health and environmental problem, which is a serious issue in certain parts of the world. Many people are exposed to As through contaminated drinking water, food and soil, through occupation, etc. Chronic As exposure is linked to various hostile health effects including skin problems, cancer, diabetes, cardiovascular disease, reproductive and developmental and neurological problems in exposed subjects. Experimental existing data indicate that chronic As exposure affects the nervous system by impairing the nerve and brain tissues of the exposed animals, and clinical studies indicate that As exposure leads to both central nervous system and peripheral nervous system impairments and also causes depression, memory impairment and difficulty in problem solving, affects body coordination, etc. Various prenatal and postnatal studies with respect to As exposure also suggest that developing offspring and young children are susceptible to As exposure. The only solution to this serious health problem is to stop occupational As exposure and provide As free drinking water to the affected population.

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