London Great Ormond Street

Great Ormond Street Hospital apologised for the ‘worry and uncertainty’ the letters about Yasser Jabbar may have caused.

Professor Noor ul Owase Jeelani said he had always been hopeful the surgeries would be successful, despite some medics suggesting it was impossible.

The twins had seven surgical procedures, involving more than 27 hours of operating time in the final operation alone, and almost 100 medical staff.