They state "save the lives of heart-attack patients". That (partially) supports the statement, since saving a life is definitely increasing their lifespan.
The rest of the quote is stating the inverse though, that not all angioplasty recipients live longer (converse? meh, you know what I mean). And that it might be over-proscribed. Neither of those have anything to do with it's ability to prolong life in other cases.
The rest of the quote is stating the inverse though, that not all angioplasty recipients live longer (converse? meh, you know what I mean). And that it might be over-proscribed. Neither of those have anything to do with it's ability to prolong life in other cases.