As baby Callum Teahan plays with his big brother and mother in his Lowestoft garden he looks like any healthy seven-month-old youngster enjoying themselves.

But for Callum's family, the scenes of him being pampered by his big brother Liam and loving mum Vicki were unimaginable five months ago.

On March 4 Callum suffered a cardiac arrest and stopped breathing at his Morton Road home, leading to Mrs Teahan frantically giving him CPR before paramedics arrived.

Because he was so seriously ill at one point doctors told Callum's parents that they should consider christening him in case he died.

Callum then faced a barrage of gruelling tests, including a bronchoscopy, at the James Paget University and Norfolk and Norwich University hospitals to find out what caused his cardiac arrest and respiratory failure.

Even though doctors have failed to diagnose the cause of the life threatening episode Callum has been allowed home where his family will be keeping a close eye on him in between eight week health checks.

And his older brother Liam, six, is well used to helping his brother and making sure he avoids harm.

As reported in the EDP in May, quick thinking Liam was given a commendation certificate by the East of England Ambulance Service for his actions on the night of March 4.

Liam, who has complex learning needs, took it upon himself to open the front door of his home to a paramedic and escort her in and then rang his father, Darren, who was on his way to work at Sizewell B power station, to tell him what had happened.

Yesterday Liam, who goes to Elm Tree Primary School, said of his little brother: 'He is cool. We play tug of war together.'

Mrs Teahan, 34, said: 'Liam absolutely adores Callum. It is lovely to see them together.

'Callum is very cheerful and is always full of giggles. He loves his cuddles.'

'It is fantastic to have him back home now – he is a real battler.'

Mrs Teahan wanted to thank the paramedics and hospital staff who had treated Callum.

anthony.carroll@archant.co.uk