A simple technique can dramatically improve the success of "test-tube" treatment for women seeking to become pregnant, British researchers have reported.
The procedure involves a simple scratch to the lining of the womb.
A new study has found that it linked to a 43% rate of successful pregnancy and birth for women undergoing IVF and a second technique ICSI.
This compared with an estimated success rate of 23% from the normal procedure.
Researchers say they do not know how the technique works – although doctors have known about it for ten years.
The Nottingham University researchers have revealed their findings at a world conference in Sydney, Australia.
Some 158 women took part in the study and 77 women underwent the procedure. Of these, some 33 gave birth to live babies and another six also achieved pregnancy.
Researcher Dr Nick Raine-Fenning said further research was being undertaken into the best way to use the technique.
He said: "This is the first well-designed trial conducted into endometrial scratching and the results are promising.
"Other trials have provided anecdotal evidence, but these have been limited and many questioned the validity of the technique."
Ultrasound in Obstetrics & Gynecology September 2013
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