Mala Vast Dhuri gave birth to healthy identical boys Kiaan and Kush, weighing 2 kg and 2.1 kg, by Caesarean at St George's Hospital in south London recently.
The 37-year-old said she was "over the moon" after doctors at the hospital scanned and checked the development of her babies against growth charts designed specifically for twins, the 'Daily Mirror' reported yesterday.
"I am over the moon to meet my gorgeous little boys. Thanks to St George's for ensuring their safe arrival," Dhuri said.
The UK's Twins and Multiple Births Association raised money for the project to create the charts using 10,000 scans of twins.
It means doctors can compare babies' development against what is normal for twins, rather than for single births.
Dr Asma Khalil, consultant obstetrician and multiple births expert based at St George's, led the project and said it could save "hundreds, if not thousands of lives" each year.
"We know twins are smaller than singles so using these old charts meant doctors had to use their own judgement. This resulted in an 'over-diagnosis' of growth problems. It meant babies were often being delivered too early," she told the newspaper.
"With twins, your chances of having a stillborn child are two to three times higher, or six times higher having a child with cerebral palsy. While stillbirth rates in singletons have declined in recent years, stillbirth rates in multiple birth babies increased by around 10 per cent between 2013 and 2015," she added.
Dr Khalil said if doctors had used the singleton chart to monitor Mala, the twins could been delivered two to three weeks early.
Comparing growth rates to "singletons" can lead to unnecessary interventions, causing stillbirths, premature births and disabilities.
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