Mother’s heartbreak watching her 2-year-old daughter die of ‘dementia’

‘It’s taking my little girl piece by piece’: Mother, 34, of two-year-old with ‘childhood dementia’ reveals agony of watching her toddler die slowly before her eyes

  • Mirryn Cunningham started to behave differently at ten months old
  • By the age of one, she was diagnosed with Batten Disease – which is incurable
  • Her brain cells are dying, reversing the skills she had already developed
  • Her mother, Vicky Cunningham, said she could die any day  
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A mother has revealed the heartbreak of watching her two-year-old die of ‘childhood dementia’.

Vicky Cunningham, 34, of West Lothian, Scotland, said her baby, Mirryn, was happy and healthy, despite being born premature.

But at 10 months old, Ms Cunningham instinctively knew something wasn’t right when Mirryn stopped trying to hold her hand or rock in her baby bouncer.

After insisting doctors investigated, Ms Cunningham was shocked to be told that her daughter’s brain was dying.

At the age of one, Mirryn was given a diagnosis of the rare Batten disease – otherwise known as childhood dementia – which is incurable.

The specific type of the condition she has, CLN1, has only been recorded in around 200 people, according to the US government’s National Institutes of Health.

Vicky Cunningham, 34, of West Lothian, Scotland, has told of her heartbreak as she watches her two-year-old daughter, Mirryn, die of ‘childhood dementia’

Ms Cunningham said her baby was a happy and healthy baby, despite being born premature

Ms Cunningham told The Sun: ‘Like an elderly person with dementia she will stop breathing in the end. It’s taking my little girl, piece by piece.

‘It’s heartbreaking to see. She should be starting nursery but I know it will never happen. There’s so much she will be missing.

‘She is so different to the happy girl she used to be. I never would have imagined this could happen.’ 

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Mirryn was born at 31 weeks and two days, weighing 3lb 2oz, and spent two months in a special care unit being treated for jaundice – a sign of liver problems.

But she developed normally once returning home, and Ms Cunningham will always hold memories of her daughter’s former cheeky personality, gurgles and babbling.

At 10 months old, Ms Cunningham noticed she was no longer trying to grab things – such as her toys or mother’s hand – and her muscles appeared to be weaker.  

Mirryn was referred to St John’s Hospital in Livingston where she had an MRI which showed some decline in the myelin in the brain – a fatty substance which protects nerves.

But doctors were not hugely concerned at that point. 

However, Mirryn’s behaviour became worse at an alarming rate, according to Ms Cunningham.

She was no longer rocking in her baby bouncer and she stopped making babbling sounds. 

Ms Cunningham, pictured holding Mirryns, said: ‘Like an elderly person with dementia she will stop breathing in the end. It’s taking my little girl, piece by piece’

At 10 months old, Ms Cunningham instinctively knew something wasn’t right when Mirryn stopped trying to hold her hand or rock in her baby bouncer

Ms Cunningham is now a full-time carer for Mirryn, pictured in her bed at home with medication around her. Mirryns was diagnosed with Batten disease at one-years-old, which causes her development skills to reverse and brain cells to die

Ms Cunningham insisted that another MRI was carried out. 

It showed drastic changes in her brain from the previous results, which she said were obvious in the images even to her other child, Alexander, eight.


Batten disease, also known as Neuronal Ceroid Lipofuscinoses, is a rare genetically-inherited disease.

It is caused by waste buildup in the cells which creates neurodegnerative effects including:

  • Blindness
  • Seizures
  • Personality changes
  • Dementia
  • Loss of motor skills and the ability to walk, talk and communicate

Because it is a rare disease, it is often difficult to diagnosed and untested at birth.  

There are 14,000 children worldwide that are diagnosed with the disorder.

There is currently no known cure or treatment available for Batten disease.

It was then that Mirryn was given the diagnosis of Batten’s Disease – a disorder of the nervous system which begins in childhood.

There are different forms of the illness and collectively they affect an estimated one in 100,000 people worldwide – including one or two of every 50,000 children in the US and up to six babies born in the UK a year.

Mirryn has CLN1 Batten Disease, which typically starts showing signs at 18 months old as the brain cells die at a rapid rate. 

Developmental skills such as standing, walking, and talking are never achieved or are gradually lost in children with the illness.

Children often develop seizures by age two and eventually become blind. 

By age three, children may become completely dependent on a caregiver and they normally don’t survive past early childhood.

Mirryn is under the care of specialists at Great Ormond Street Hospital in London but, due to the rarity of the disease, a treatment has not been found.

Since her diagnosis, Mirryn has deteriorated fast.

Mirryn had an MRI scan which showed drastic changes in her brain, which Ms Cunningham said were obvious in the images. Pictured, in hospital

Mirryn has CLN1 Batten Disease which most patients will die of by early childhood

Ms Cunningham admits any day could be her last, and she doesn’t think her daughter will make it to Christmas. 

‘It’s devastating to watch,’ she said. ‘She has lost eye contact, can’t interact, her vision is going and she can’t swallow.’ 

As the condition worsens, children have severe difficulties eating and often require a feeding tube. 

Ms Cunningham had had dreams of taking her little girl to Disneyland, but now will arrange a Disney themed party at her home in the late summer. 

She has launched a crowdfunding campaign to raise the money for a ‘P Pod’ – a chair which helps to protect her daughter’s ‘floppy’ posture.

Mirryn is unable to support herself and the chair allows her to breathe at ease. 

You can donate to the GoFundMe page here. 

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