amyandIsabelle, that's really amazing but i'm afraid i'm still sceptical - having seen what it takes to save a 24 weeker today, the technology was not around 34 years ago. Without a confirmed dating scan between 8 and 12 weeks its much more likely he was 4 weeks gestationally older but with a growth problem (IUGR). in 1977 viability was generally around 28 weeks and it would be quite suprising to find a 25+5 baby surviving to be honest! :)
sorry, I don't mean to offend but even today this would be a globally significant medical event.
Do you have more information - like how long he spent on a ventilator? Did he have treatment for ROP or NEC? what is his current lung function like? I'm fascinated!
betterwhenthesunshines - there are lots of other treatments offered where the chance of saving a life is only 10% or less, and the objective of treatment is actually to prolong life even if that life will be painful and of lower quality than average. Many cancer treatments, for example, are about extending useful life rather than seeking a cure. For example (from cancer research UK) it looks like Oesophagal, lung and pancreatic cancers all have survival rates under 10% at 10 years, yet we routinely offer expensive active (rather than palliative) treatment in most cases - from surgery to chemotherapy and radiotherapy. Treatment is painful and can mean quality of life is much reduced for the patient - but it's a clinical decision taken jointly between the doctors and the patient, weighing up what's medically possible, what the benefits would be and what the risks or burden of treatment might be.
Ultimately, everyone has a 0% survivability rate, its just a question of time! 