THE HUMAN ADVANTAGE

So how does a doctor go from diagnosing a patient to figuring out how best to care for them? The answer is almost always, “It depends.”

Consider two men, Marcus and Tomas, both 68, both just diagnosed with early-stage prostate cancer. Their biopsies show the same thing: a slow-growing tumour confined to the prostate.

Both are offered the same two management options. Treat now, with surgery or radiation, accepting the risks of urinary incontinence and changes to sexual function. Or monitor closely with regular tests and biopsies, treating only if it grows.

A study that followed more than 82,000 men with early-stage prostate cancer for 15 years found that fewer than 3 in 100 died of their prostate cancer regardless of which path they chose, though men who chose monitoring were about twice as likely to see their cancer spread.

AI can present both options alongside those statistics. What a doctor brings is knowledge of the person sitting across from them.

Marcus has no other significant health conditions. His doctor knows this and knows Marcus well enough to know that uncertainty sits badly with him. For a patient without other pressing health concerns, a slow-growing tumour has time to progress and become something more serious.

Both management paths are genuinely reasonable, but Marcus cannot live with waiting. Knowing cancer is in his body, watched but untreated, is not something he can set aside. He chooses treatment.

Tomas has advanced heart failure, something his doctor has been managing alongside him for years. She knows that his heart condition poses a more immediate threat to his health than this slow-growing tumour does. She knows, too, that he watched a friend go through radiation and come out diminished.

Treating aggressively would mean bearing real costs for a benefit that may never arrive. She recommends active surveillance. For Tomas, it is the right answer and a relief.

Different management decisions are the norm in medicine. The right path for any patient depends on who that patient is and what they value, and on a doctor’s judgment about where the evidence is reliable and where genuine uncertainty remains.