Cause of death revealed for YouTube star Caleb Logan Bratayley (13)
YouTube star Caleb Logan 'Bratayley' died in early October from "natural causes", according to the post breaking the news of his passing.
Announcing his death, his mother Annie wrote that the teenager "passed away of natural causes", adding that his death was a "shock to all of us".
In the family's latest Instagram post, Annie finally revealed to fans what caused young Caleb's death, explaining that it had just been confirmed.
"The doctor confirmed today that Caleb passed away from a heart condition called Hypertrophic Cardiomyopathy that went undetected in his yearly checkups".
"Caleb didn't have any symptoms so the doctor said there was nothing we could have done differently".
Hypertrophic cardiomyopathy (HCM) is a primary disease of the muscle of the heart in which a portion of the muscle is thickened without any obvious cause, obstructing the heart from pumping blood efficiently. Symptoms can include shortness of breath, chest pain, palpitations, light headedness and fainting. HCM affects around 0.2% to 0.5% of the general population.
"The girls' hearts were just recently checked and thankfully look the way they should right now. The sadness of losing someone you love is unimaginable... We miss our baked potato everyday".
The family have paid a number of tributes to their eldest on Instagram since his passing.
"(His death) has come as a shock to all of us. Words cannot describe how much we will miss him. His incredibly funny, loving and wonderful spirit made us all fall in love with him as a YouTuber, friend, brother and son".
The family returned to "making videos for now...to honor him and continue this channel as it was intended, to be a celebration of life".
"We will continue to grieve and miss Caleb everyday but we will not show it in the videos often".
The family came under fire for live-streaming their son's memorial service on Twitter's live-broadcasting app Periscope and through Facebook LIVE.
Posting on their Instagram, the family wrote that "Due to an outpouring of support and people's hope to be part of his memorial, we have decided to live-stream the ceremony".
The YouTube Channel 'Bratayley' was a YouTube channel which showcased three American kids - Caleb(13), Hayley(7) and Annie(10), run by their mother Katie. It was set up originally for the family's youngest member, Hayley, but became a family vlogging channel. The name 'Bratayley' is a pseudonym, combining the words 'Brat' and 'Hayley'.
Daily 'video blogs' of the family's life became incredibly popular on YouTube, racking up over 1.6m subscribers and over 1bn views.