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Irish Child Health Database - Peer Reviewed Papers

Database Search

How to use this database.

• Method 1- uses a free natural language approach.

  After choosing the object of the search – by ticking title, abstract, aims and objective, or author - enter a term, word or name in the ‘Search’ box to return references answering your research question.

• Method 2 - utilises key words.

  Those key words assigned from thesauruses of controlled vocabulary by the trained coders of international bibliographic databases.
  The controlled vocabularies key word are listed alphanumerically under 'Bibliographic database keywords' .
  Use the drop down menu to identity which 'key words' you are interested in to return references to answer your research question.

• Method 3 - is based on the indexing system

  developed by the researchers who compiled this database.
  It adopts a thematic approach to mapping Irish child health research. The themed areas represent outcomes mapped to the International Classification of Disease version 10 (ICD-10) or one of 23 other health-related themed outcomes. Themes are defined in Tables 5 to 7 (of the study report).
  Use the alphabetic drop down menu under ‘ICD-10 or themed health-related outcomes’ to identity which themed areas you are interested in to select references to answer your research question.

• Method 4 – allows papers to be searched by Study type.

  Indexing by study type offers a valuable insight into understanding the population impact of the topic of interest. More than 20 study types were identified across the 2,152 study papers. These are defined in Table 3 (of the study report). Within 'Study type' papers are further stratification by geographical region (Table 49), topic area of interest and study aims and objectives.
  Click on 'Study type' to select the type of study of interest, progressively select sub-categories by topic area or other sub-classification of interest to answer your research question.

The complete background, methods and findings from this mapping exercise are detailed in the study report.

• Prediction of seizures in asphyxiated neonates: correlation with continuous video-electroencephalographic monitoring

  Published in:

  Pediatrics, Vol: 118, Page: 41-6

  Publication Date:

  July 2006

  Aims & Objectives:

  The aim of this study was to examine if predictive values of high risk markers Apgar, acidosis and others - would be increased if early continuous electroencephalographic monitoring allowed accurate identification of all neonatal seizures

  Abstract:

  BACKGROUND: After perinatal asphyxia, predicting which infants will develop significant hypoxic-ischemic encephalopathy and neonatal seizures remains a difficult task. High-risk markers (Apgar score, acidosis, nucleated red blood cells, and resuscitation) have been used to predict neonatal seizures with varying success. The "3 strikes" of Apgar score of <5 at 5 minutes, pH <7.00, and need for intubation have been cited as having a positive predictive value of 80%. We examined whether the predictive values of these markers would be increased if early continuous electroencephalographic monitoring allowed us to accurately identify all neonatal seizures and to grade the encephalopathy. METHOD: We recruited term infants with perinatal asphyxia. Continuous video electroencephalography was commenced soon after birth and continued for 24 to 72 hours. The abilities of high-risk markers to predict electroencephalographic seizures, background electroencephalographic activity, and Sarnat grade were examined. RESULTS: Forty-nine infants were suitable for analysis. Electrographic seizures occurred in 11 of the 49 infants. Encephalopathy was scored by using Sarnat grade (6, severe; 18, moderate; 25, mild) and electroencephalographic findings (4 inactive, 4 major abnormalities, 16 moderate abnormalities, and 25 normal/mildly abnormal). Apgar score of <5 at 5 minutes, pH <7.0, and the need for intubation had positive predictive values for neonatal seizures of 18%, 16%, and 21%, respectively. Combining these markers gave a positive predictive value of 25% and a negative predictive value of 77%. Substituting base deficit or lactate for pH in the 3-strikes model did not improve its predictive value. Apgar score of <5 at 5 minutes, nucleated red blood cells, and a base deficit less than -15 mEq/L showed some association with Sarnat grade. Only 5-minute Apgar score was significantly associated with both Sarnat grade and electroencephalographic grade. CONCLUSION: After perinatal asphyxia, neither the condition at birth nor the degree of metabolic acidosis reliably predict neonatal seizures.

  Authors:

  D. M. Murray; C. A. Ryan; G. B. Boylan; A. P. Fitzgerald; S. Connolly

  Study Type:

  Study Papers » Case Study » Descriptive Studies - Without a comparision

  Categories:

  neonatal seizures; encephalopathy

  International Classification:

  Neonatal seizures

  Keywords:

  • Apgar Score
  • Asphyxia Neonatorum/ complications
  • Blood Gas Analysis
  • Electroencephalography/methods
  • Epilepsy, Benign Neonatal/ diagnosis
  • Gestational Age
  • Humans
  • Hypoxia-Ischemia, Brain
  • Infant, Newborn
  • Monitoring, Physiologic/methods
  • Neonatal Screening/ methods
  • Predictive Value of Tests
  • Prospective Studies
  • Risk Factors
  • Video Recording

  
  

  Geography:

  Republic of Ireland (Southern (Cork) Ireland)