March 2013 - Hunter New England Health - NSW Government
March 2013 - Hunter New England Health - NSW Government
March 2013 - Hunter New England Health - NSW Government
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Kaleidoscope news<br />
Mothers support newborn testing for Fragile X Syndrome<br />
<strong>Hunter</strong> Genetics GOLD Service Genetic Counsellors Jackie Boyle_Louise Christie and Carolyn Rogers<br />
Fragile X Syndrome (FXS) is the most common cause of inherited<br />
intellectual disability, affecting one in 4000 males and one in 6000 females.<br />
Children with FXS do not have any physical features of the condition<br />
at birth, which means the diagnosis is often delayed until parents or<br />
health professionals become concerned about the child’s developmental<br />
milestones.<br />
In the first study of its kind in Australia, the Genetics of Learning Disability<br />
(GOLD) service at <strong>Hunter</strong> Genetics has found overwhelming support for<br />
newborn screening for FXS in postnatal mothers.<br />
Genetic Counsellor Louise Christie said worldwide, FXS testing is not<br />
currently included in routine newborn screening. In this study, mothers<br />
were offered the option of including FXS testing into their newborn’s<br />
routine newborn screening by testing DNA extracted from the ‘heel prick’<br />
sample.<br />
“<strong>New</strong>born screening for FXS can provide an earlier diagnosis, alleviating<br />
the diagnostic odyssey for parents and allowing access to earlier<br />
interventions,” Ms Christie said.<br />
“It can also inform parents and extended family members of the FXS in the<br />
family and the option of future reproductive choices.<br />
“In Australia, the mean age of diagnosis is 5.5 years and many families<br />
have a second child before the diagnosis is made,” she said<br />
The study demonstrated a high uptake of newborn testing for FXS (94%)<br />
with 2000 male and female newborns tested. Even though there is no cure<br />
for FXS, mothers considered an early diagnosis as beneficial and wanted<br />
the information to prepare for a child with additional needs.<br />
More than two thirds of mothers wanted the information to assist in future<br />
reproductive planning. Mothers showed little concern that the testing could<br />
also detect carriers of FXS and the health implications for adult carriers.<br />
The research was undertaken in collaboration with the Department of<br />
Obstetrics and Gynaecology at John <strong>Hunter</strong> Hospital, the Department of<br />
Molecular Genetics and <strong>New</strong>born Screening Program at The Children’s<br />
Hospital, Westmead and is being published as a feature article in the<br />
American Journal of Medical Genetics Part A in February <strong>2013</strong>.<br />
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hnehealth.nsw.gov.au 11