Is ist just me or is anyone else actually concerned that a have-a-go engineer can apparently quite easily achieve significantly bettr results than a team of so-called expert doctors in their own field?
The description does indeed try to imply that the above is the case. But it's far from the truth, as much as internet armchair experts would like to believe.
The article itself appears to state that the problem was that 1) the initial advice was to wait, which after (appropriately) consulting with a number of experts they had done, and a followup showed progression. Even the first advice was not totally misplaced. Then what happened was that he suggested that the neurosurgeons basically invent a procedure specifically for him, and used 3D printing to create a model for them. The result was he did find someone willing to try (my guess is they refused the conventional approach) a less invasive procedure that removed 95% of the tumor. Now that may sound revolutionary, but neurosurgery is a tricky business, and depending on the tumor 95% may be equivalent to buying a little time while doing nothing at all, especially since they already knew that the tumor was growing aggressively. If the conventional approach would have had more of a chance of removing more of the tumor, possibly all of it with negative margins, that would be a far more definitive approach. Doctors aren't always right, but if you get a sufficiently experienced expert opinion, it'll usually reflect what is possible to do currently, with a reasonable margin of both safety and success.