Alison Lee-Tannock, Kate Jardine, Karen Eagleson, Jessica Suna, Kim Betts, Cameron Ward, Benjamin Auld, Alex Gooi
{"title":"Impact of a Standardised Fetal Cardiac Screening Programme on Antenatal Detection Rates of Transposition of the Great Arteries","authors":"Alison Lee-Tannock, Kate Jardine, Karen Eagleson, Jessica Suna, Kim Betts, Cameron Ward, Benjamin Auld, Alex Gooi","doi":"10.1002/ajum.70004","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Background</h3>\n \n <p>Dextro-transposition of the great arteries (d-TGA) can be difficult to diagnose antenatally. Standardised cardiac screening protocols may improve detection rates.</p>\n </section>\n \n <section>\n \n <h3> Aims</h3>\n \n <p>The objective of this study was to examine rates of antenatal diagnosis of d-TGA in regional and metropolitan Brisbane over a 10-year period and assess if a targeted antenatal screening education programme had an impact on detection rates.</p>\n </section>\n \n <section>\n \n <h3> Materials and Methods</h3>\n \n <p>A retrospective cohort study was conducted. Data were collected for infants diagnosed with d-TGA in Queensland between January 2008 and December 2017. Infants were divided into two cohorts to assess antenatal detection rates in both regional and metropolitan areas Queensland pre- and post implementation of a targeted sonographer education programme between 2008 and 2011.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>A total of 126 infants were identified with a diagnosis of d-TGA. The overall antenatal detection rate was 63.5% across the 10-year study period. Prior to the educational intervention, the detection rate was 51% (2008–2011 <i>n</i> = 23/45), which increased significantly to 70% post educational intervention (2012–2017, <i>n</i> = 57/81) (<i>p</i> = 0.035). Regional Queensland (<i>n</i> = 60) detection rates increased from 44% to 63% (<i>p</i> = 0.192) and metropolitan (<i>n</i> = 66) detection rates increased from 60% to 76% (<i>p</i> = 0.24) post educational intervention.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>Rates of antenatal diagnosis of d-TGA in Queensland compare favourably with internationally published rates, although difficulty in consistently diagnosing this congenital heart defect remains. A targeted educational programme of sonographers performing antenatal screening, particularly in regional areas, appears to increase rates of prenatal diagnosis and improve outcomes.</p>\n </section>\n </div>","PeriodicalId":36517,"journal":{"name":"Australasian Journal of Ultrasound in Medicine","volume":"28 3","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajum.70004","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Australasian Journal of Ultrasound in Medicine","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ajum.70004","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Medicine","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Dextro-transposition of the great arteries (d-TGA) can be difficult to diagnose antenatally. Standardised cardiac screening protocols may improve detection rates.
Aims
The objective of this study was to examine rates of antenatal diagnosis of d-TGA in regional and metropolitan Brisbane over a 10-year period and assess if a targeted antenatal screening education programme had an impact on detection rates.
Materials and Methods
A retrospective cohort study was conducted. Data were collected for infants diagnosed with d-TGA in Queensland between January 2008 and December 2017. Infants were divided into two cohorts to assess antenatal detection rates in both regional and metropolitan areas Queensland pre- and post implementation of a targeted sonographer education programme between 2008 and 2011.
Results
A total of 126 infants were identified with a diagnosis of d-TGA. The overall antenatal detection rate was 63.5% across the 10-year study period. Prior to the educational intervention, the detection rate was 51% (2008–2011 n = 23/45), which increased significantly to 70% post educational intervention (2012–2017, n = 57/81) (p = 0.035). Regional Queensland (n = 60) detection rates increased from 44% to 63% (p = 0.192) and metropolitan (n = 66) detection rates increased from 60% to 76% (p = 0.24) post educational intervention.
Conclusions
Rates of antenatal diagnosis of d-TGA in Queensland compare favourably with internationally published rates, although difficulty in consistently diagnosing this congenital heart defect remains. A targeted educational programme of sonographers performing antenatal screening, particularly in regional areas, appears to increase rates of prenatal diagnosis and improve outcomes.