AN 11-year-old boy who died at Southend Hospital after falling ill while playing with friends may have been suffering from a genetic condition, an inquest has heard.

Jason Treloar, or Jay as he was known, died from a ruptured artery in his heart after falling ill outside his home in Third Walk, Canvey, shortly before 6.30pm on April 23, 2010.

An inquest into his death began yesterday and revealed a post mortem found Jay died from a dissected aortic aneurysm. The doctor who carried it out, Dr Schiemberg, said Jay may have been suffering from an undiagnosed condition.

His mother, Agnetta Treloar, told how Jay, who was a pupil at Northwick Park Primary School, in Third Avenue, Canvey, had suddenly become unwell and lost consciousness.

Ms Treloar said: “I was in the kitchen cleaning up when I just heard a bloodcurdling scream.

He had never sounded like that in his life.”

Jay was seen by an emergency medical technician at 7.17pm before paramedics arrived at 7.26pm and carried out an ECG which showed “abnormal results”. The youngster was taken to Southend Hospital at 7.37pm without blue lights, but Ms Treloar criticised the treatment her son had received.

Ms Treloar claimed during the journey she was left to clean Jay up when he was sick and the ambulance driver stopped at traffic lights and had a chat with a friend outside.

She said after a 25-minute journey to hospital they then waited for an hour and 11 minutes before Jay was triaged and admitted.

She said: “We stayed there. At no time did a nurse come near Jay. He was not triaged on the ambulance trolley. We were given a bed later and no nursing staff came over.

“The paramedics put him on the bed and attached him to the monitor and they left. We stood there for about 10 minutes. A&E looked busy, but the staff weren’t. They were too busy discussing their weekend, their boyfriends and their hair. They were busy ignoring patients.”

Paramedic Brian Heard said: “There was nothing in his basic observations to cause us major concern.”

An hour and a half later, the family saw a doctor and the pain in Jay’s chest had shifted to his abdomen.

Dr Coker, a trainee specialist doing a locum shift at A&E, said there was a possibility Jay was suffering from appendicitis.

The inquest heard Dr Coker did not take new observations and copied Jay’s vital signs from his triage exam at 9.15pm which he admitted was an “error”.

Four other doctors dealt with Jay overnight and by morning it was thought he may be suffering from a chest infection.

Clinical director Dr Howard said before then no cardiac diagnosis had been given “because he was an 11-year-old boy who did not have chest pain any more and had a normal ECG.”

Jay was kept in overnight for observations, but collapsed after a chest X-ray. Despite the crash team attempting to resuscitate Jay for more than an hour, he died at 5.30pm on April 24.

The inquest was adjourned until Friday June 20, when Coroner Caroline Beasley- Murray.

mother has spoken of her heartache after losing her “whole life” when her son died.

Agnetta Treloar, 35, speaking outside the inquest, said she wanted “lessons to be learned”

after her son’s death.

Ms Treloar, of Ravenscourt Walk, Basildon, said: “I’m really happy I’ve told the other side of the story and the truth has been heard.

“I’m hoping lessons will be learned when it comes to doctors using their ears and listening to parents in all cases.

They need to learn to listen. That night I lost my son, my whole life.”

Jay had a history of spinal scoliosis, joint deformities, and an enlarged heart.

Doctors predicted Jay would never be able to walk after he was born with a double curvature of the spine, dislocated elbows and no left hip.

However, he stunned doctors by finding a way to walk short distances.

He used a wheelchair for long distances and regularly went to Great Ormond Street Hospital and Royal Brompton for treatment.

Jay’s consultant paediatric cardiologist at the Royal Brompton, Dr Rigby, was due to reviewhim a week after he died.

Dr Rigby told the inquest it was difficult to say if anything could have been done to save him. He said: “This was an extreme form of dissection, for which, if you were to ask an experienced cardiologist or surgeon they would say to you that the mortality rate for this kind of dissection would approach 100 per cent.”