What "keyhole" actually means

The operation on the valve itself — the repair or the replacement — is the same operation. What changes is the way in: a cut of a few centimetres between the ribs, with the surgeon working with the aid of a camera, instead of an opened breastbone [2][4]. Because the bone is left intact, there is no sternum to knit back together during the weeks afterwards [3][4].

What the best evidence shows

The fairest test to date is the UK Mini Mitral trial, which randomised patients between keyhole and conventional mitral repair in experienced centres and reported in JAMA in 2023. Patients recovered physical function faster in the first six weeks after keyhole surgery; by twelve weeks, the two groups were similar. Crucially, the quality and safety of the valve repair itself were the same either way — 96% of valves were repaired overall [1].

That is the honest shape of the benefit: an easier early recovery and a smaller scar, with the same operation done inside — not a different league of surgery [1][5].

Recovery, realistically

Every recovery is individual, so think in ranges rather than promises [3][4]:

  • Hospital stay after valve surgery is typically around a week, sometimes less [3][4].
  • After conventional surgery, the healing breastbone sets the tempo: heavy lifting and driving wait several weeks, and full recovery is usually measured in two to three months [3][4].
  • After keyhole surgery, those bone-healing restrictions largely fall away, which is why the first weeks tend to feel freer [1][3].
  • Cardiac rehabilitation — a structured return to activity — matters at least as much as the incision for how well the months after surgery go [3][4].

Who it suits — and who it doesn't

Keyhole surgery is not a universal upgrade. Anatomy, previous operations, the state of the arteries that the approach relies on, and what else needs doing at the same time all decide whether it is wise for you — which is why the route is chosen by the surgical team after detailed imaging, not from a menu [2][5]. If your case is better served through the breastbone, that is not a lesser outcome: the valve gets the same operation either way [1][2].

The question that matters most

Rather than "can I have keyhole surgery?", the stronger question is: "for my valve and my anatomy, which route gives the best repair — and what will my first six weeks look like on each?" A team that does both can answer that for you honestly.