Fascinating footage has given a behind-the-scenes glimpse at how pioneering surgery is performed on a foetus while it's still in the womb.
Dr Wael El Banna filmed a procedure he performed on a baby in utero to repair the beginnings of the birth defect spina bifida.
The clip shows him pulling the fluid-filled womb out of the mother's abdomen, draining liquid through a tube and performing intricate surgery on the baby inside.
Dr El Banna, from Egypt, said his operation was the first of its kind to be performed in the region and mother and baby have been 'doing great' since the op this month.
He revealed the procedure to MailOnline just days after a mother in England spoke of her delight at having a healthy baby after the same operation – the NHS is preparing to start offering the op later this year. Dr El Banna and a team of 11 medics completed the five-hour operation on Thursday, April 11, at Gohar Hospital in Cairo.
The unidentified patient, a 36-year-old woman from Saudi Arabia, was 26 weeks pregnant at the time.
Dr El Banna, a 38-year-old esteemed gynaecologist, told MailOnline: 'During her antenatal ultrasound she was discovered to have a defect in the back of her foetus.
'Bravely she decided to go through the battle of open fetal surgery and refused the abortion option totally.
'Her words were so touching – "I know that he will suffer and I will do anything to help him".'
The baby had been found to have a hindbrain herniation, a deformity in which part of the brain is pulled out the back of the skull by the spine and down the neck.
This can cause spina bifida, a condition which begins before birth and develops when nerves are exposed and left at risk of damage.
When nerves are damaged it can leave sufferers with weak or paralysed leg muscles, bowel or bladder incontinence, or reduced sensation in the lower body.
It can also lead to a build-up of fluid in the skull which can cause further brain damage and potentially learning difficulties.
In the UK, as many as 80 per cent of parents who find out their unborn child has spina bifida opt for a termination.
In this type of pioneering surgery, doctors are now able to correct malformations in the spine in the hope of protecting nerves and preventing crippling damage.
'We opened the abdomen and got the womb out,' Dr El Banna said.
'We located the position of the foetus and then manipulated his body to face the small opening that we made in the womb.
'Then [we] drained some of the fluid around the foetus and kept the foetus under monitoring through the whole surgery.
'The defect was repaired successfully and the fluid was injected back around the foetus and the womb and abdomen were closed.
'She [the mother] was put in a strict post-operative protocol and, thank God, the foetus and the mother are doing well.'
The footage of Dr El Banna, who has trained at King's College London and a clinic on Harley Street, shows him pull the woman's swollen womb out through an incision on her stomach.
He works with a team of medics including nurses, obstetricians, neurosurgeons and a paediatrician.
Dr El Banna feels the football-sized pouch to find where the foetus is and moves it into a suitable position for surgery, away from the placenta to avoid damaging the organ.
Then a trocar, a drainage pipe, is pushed through the lining of the womb to drain some of the amniotic fluid.
The team of surgeons and anaesthetists then proceed with the groundbreaking operation to repair the baby's spine before replacing drained amniotic fluid and closing the womb and the mother's abdomen.
Dr El Banna added: 'There are lots of technical complications and lots of things which could go wrong with this procedure.
'But the mother was brave and she didn't want her son to be disabled and she didn't want an abortion.
'This operation has been performed for years in the US and children have better walking and less urinary and bowel incontinence.'
Dr El Banna said bleeding and blood clots are possible complications of the surgery, and the foetus's life is at risk because the womb is inflated with air for the operation.
But his procedure went well and a scan seven days afterwards showed the baby's spine now looks healthier and the mother was well and walking around after 10 days.
And this type of in-utero surgery, best performed between the 22nd and 26th week of pregnancy, will be the way forward for surgeons in the future, Dr El Banna said.