scholarly journals Building an Open Source Classifier for the Neonatal EEG Background: A Systematic Feature-Based Approach From Expert Scoring to Clinical Visualization

2021 ◽  
Vol 15 ◽  
Author(s):  
Saeed Montazeri Moghadam ◽  
Elana Pinchefsky ◽  
Ilse Tse ◽  
Viviana Marchi ◽  
Jukka Kohonen ◽  
...  

Neonatal brain monitoring in the neonatal intensive care units (NICU) requires a continuous review of the spontaneous cortical activity, i.e., the electroencephalograph (EEG) background activity. This needs development of bedside methods for an automated assessment of the EEG background activity. In this paper, we present development of the key components of a neonatal EEG background classifier, starting from the visual background scoring to classifier design, and finally to possible bedside visualization of the classifier results. A dataset with 13,200 5-minute EEG epochs (8–16 channels) from 27 infants with birth asphyxia was used for classifier training after scoring by two independent experts. We tested three classifier designs based on 98 computational features, and their performance was assessed with respect to scoring system, pre- and post-processing of labels and outputs, choice of channels, and visualization in monitor displays. The optimal solution achieved an overall classification accuracy of 97% with a range across subjects of 81–100%. We identified a set of 23 features that make the classifier highly robust to the choice of channels and missing data due to artefact rejection. Our results showed that an automated bedside classifier of EEG background is achievable, and we publish the full classifier algorithm to allow further clinical replication and validation studies.

2013 ◽  
Vol 32 (3) ◽  
pp. 206-209 ◽  
Author(s):  
Gauri Shankar Shah ◽  
Jyoti Agrawal ◽  
OM Prakash Mishra ◽  
Shiva Chalise

Introduction: Perinatal asphyxia is a common problem with the incidence varying from 0.5 – 2% of live births. It is an important cause of neonatal mortality and is a frequent cause for admission to neonatal intensive care units (NICU). The aims of this study were to find out the clinical and biochemical alterations in different stages of HIE. Materials and Methods: This was a prospective hospital based observational study performed during the period of February, 2010 to January, 2011. Results: Sixty inborn neonates satisfying the criteria for birth asphyxia requiring admission to pediatric wards and neonatal intensive care unit were studied. There were 13(21.7%) cases of mild hypoxemic ischemic encephalopathy (HIE), 27 (45%) moderate and 20 (33.3%) severe HIE. Seizures 41(68.3%), respiratory distress 32(53.3%) and shock 29(48.3%) were predominant manifestations observed. Meconium aspiration syndrome was found in 13.3% of neonates. Hypoglycemia 11(18.3%), hypocalcaemia 7(11.7%), hyponetremia 14 (23.3%) and hyperbilirubinemia 9(15%) were associated biochemical abnormalities. Twenty cases (33.3%) had acute renal failure and they belonged to moderate and severe stages of HIE. Seizures (P< 0.001), respiratory distress (P=0.015), shock (P<0.001) and serum creatinine (P=0.004) were found to be significant among different HIE stages. Conclusion: Neonates having birth asphyxia had HIE, seizures, respiratory distress, shock, hypoglycemia hypocalcaemia, hyponetremia, hyperbilirubinemia and acute renal failure mostly in moderate and severe stages. DOI: http://dx.doi.org/10.3126/jnps.v32i3.7626 J. Nepal Paediatr. SocVol.32(3) 2012 206-209


Author(s):  
Haluk Tanrıverdi ◽  
Orhan Akova ◽  
Nurcan Türkoğlu Latifoğlu

This study aims to demonstrate the relationship between the qualifications of neonatal intensive care units of hospitals (physical conditions, standard applications, employee qualifications and use of personal protective equipment) and work related causes and risks, employee related causes and risks when occupational accidents occur. Accordingly, a survey was prepared and was made among 105 nurses working in 3 public and 3 private hospital's neonatal intensive care units, in the January of 2010. The survey consists of questions about the qualifications of neonatal intensive care units, work related causes and risks, and employee related causes and risks. From the regression analysis conducted, it has been found that confirmed hypotheses in several studies in the literature were not significant in this study. The sub-dimensions in which relationships has been found show that the improvement of the physical environment in workplace, the improvement of the employee qualifications and standard applications can reduce the rate of occupational accidents. According to the results of this study management should take care of the organizational factors besides to improvement of the physical environment in workplace, the improvement of the employee qualifications and standard applications.


2019 ◽  
Vol 2 ◽  
pp. 1
Author(s):  
Bhushita Lakhkar ◽  
M. M. Patil ◽  
Bhavana Lakhkar ◽  
Bhushan Lakhkar

Objective The study aimed to utilize the neurosonographic findings in neonates in early diagnosis, prediction of their long-term outcome, parental counseling, and early intervention. Methods The study was carried out in neonatal intensive care unit (NICU) of Shri BM Patil Medical College and Hospital. All preterms and term babies with neurological clinical findings were included in the study. Neurosonogram was done within first 7 days in preterms and when indicated in terms. Philips HD11XE ultrasound and color Doppler unit were used with a small footprint probe. Color Doppler images for vessels were performed for screening of vascular changes. Results A total of 215 babies were included, of which 80 (32%) were term and the rest were preterm. Mean weight of term babies was 2.8 kg and that of preterm was 1.2 kg.Among term babies, 78% showed ultrasound abnormality, and among preterm, 42%showed abnormalities. Among term babies, 60% and, among preterms, 30% had birth asphyxia. Periventricular leukomalacia was the most common and earliest finding followed by thalamic hyperechogenicity and intracranial hemorrhage. Intraventricular hemorrhage was more common in preterm babies. Other common finding in NICU was meningitis which was more common in pretrms. Among congenital anomalies, corpus callosal agenesis was more common. Conclusions Point of care ultrasonography along with Doppler study is very useful and safe to use in NICUs. It helps in diagnosis, patient management as well as prediction of many short- and long-term outcomes.


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