Earlier quoted context omitted.
No, not really.
Can you name a procedure that's actually life-saving, then? As far as I can tell, any medical procedure maxes out at "extending life"
If you're treated for brain cancer and you live some more years but ultimately die of that brain cancer, it's life extending. If you're treated for brain cancer and die of an unrelated heart condition, it's life saving. I don't know how meaningful that difference ultimately is, but I think that's how I'd use the terms.