Brazil: Conjoined twins with rare condition separated using virtual reality

Updated on Aug 02, 2022 02:46 PM IST

The twins were joined at the top of their head for four years until a 27-hour surgery separated them.

Handout picture released by Rio de Janeiro's State Health Department shows Brazilian conjoined twins Bernardo (L) and Arthur (R) with their parents Adriely and Antonio Lima in Rio de Janeiro, Brazil. (AFP)
Handout picture released by Rio de Janeiro's State Health Department shows Brazilian conjoined twins Bernardo (L) and Arthur (R) with their parents Adriely and Antonio Lima in Rio de Janeiro, Brazil. (AFP)
AFP | | Posted by Lingamgunta Nirmitha Rao

Conjoined twins born in Brazil with a fused head and brain have been separated in what doctors described Monday as the most complex surgery of its kind, which they prepared for using virtual reality.

Arthur and Bernardo Lima were born in 2018 in the state of Roraima in northern Brazil as craniopagus twins, an extremely rare condition in which the siblings are fused at the cranium.

Joined at the top of the head for nearly four years -- most of that spent in a Rio de Janeiro hospital outfitted with a custom bed -- the brothers are now able to look each other in the face for the first time, after a series of nine operations culminating in a marathon 27-hour surgery to separate them.

London-based medical charity Gemini Untwined, which helped carry out the procedure, described it as the "most challenging and complex separation to date," given that the boys shared several vital veins.

"The twins had the most serious and difficult version of the condition, with the highest risk of death for both," said neurosurgeon Gabriel Mufarrej of the Paulo Niemeyer State Brain Institute (IECPN) in Rio, where the procedure was performed.

"We're very satisfied with the outcome, because no one else believed in this surgery at first, but we always believed there was a chance," he said in a statement.

Handout photo released by Gemini Untwined shows conjoined twins Bernardo and Arthur Lima after their operation at the Instituto Estadual do Cerebro Paulo Niemeyer (IECPN) hospital in Rio de Janeiro, Brazil. (AFP)
Handout photo released by Gemini Untwined shows conjoined twins Bernardo and Arthur Lima after their operation at the Instituto Estadual do Cerebro Paulo Niemeyer (IECPN) hospital in Rio de Janeiro, Brazil. (AFP)

Members of the medical team, which included nearly 100 staff, prepared for the delicate final stages of the surgery on June 7 and 9 with the help of virtual reality, said Gemini Untwined.

Using brain scans to create a digital map of the boys' shared cranium, surgeons practiced for the procedure in a trans-Atlantic virtual-reality trial surgery.

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British neurosurgeon Noor ul Owase Jeelani, the lead surgeon for Gemini Untwined, called the virtual reality prep session "space-age stuff."

"It's just wonderful, it's really great to see the anatomy and do the surgery before you actually put the children at any risk," he told British news agency PA.

"You can imagine how reassuring that is for the surgeons... To do it in virtual reality was just really man-on-Mars stuff."

Pictures and videos released by medical staff showed the boys lying side-by-side on a hospital bed post-surgery, little Arthur reaching out to touch his brother's hand.

In tears, the boys' mother, Adriely Lima, described the family's relief.

"We've been living in the hospital for nearly four years," she said.

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