Tirone E. David

Other — cardiac surgeon, aortic valve-sparing surgery, University of Toronto

Born

1944

Birthplace

SÃO PAULO, BRAZIL

Citizenships

BRAZIL / CA

Canadianness Score

🍁🍁🍁🍁🍁

2.0/ 5

Weighted across 6 scored criteria

Designation

Gets Yearly Letters from the CRA 📬

Not born or raised there — but the CRA always knows where to find them.

Scorecard

Path B — not born on Canadian soil

I. Origin

Born on Canadian soil

SÃO PAULO, BRAZIL

Canadian parentage

No Canadian parents on record

Citizenship on record

Held — by descent or naturalisation

II. Residency

Formative years spent in Canada

Raised elsewhere

Lived in Canada by choice

Residency on record as an adult

Worked or filmed in Canada

Credits filed north of the 49th

III. Cultural evidence — not scored

Section III is recorded for the file only. It carries no weight under either path.

Publicly claims to be Canadian

Has never brought it up

Canada claims them back

Claimed, enthusiastically

Fun fact

Invented the 'David procedure,' a valve-sparing aortic root replacement technique used by cardiac surgeons worldwide.

The verdict

Tirone Esperidião David is a Brazilian-born cardiac surgeon and University Professor at the University of Toronto, based at the Peter Munk Cardiac Centre — inventor of the 'David procedure' for aortic valve repair, and an Officer of the Order of Canada. Naturalized Canadian, decades of career here, and a genuine giant of Canadian medicine. Four points, Johnny Canuck.

Adjudicated by

The Standings Committee

Status

Final — appealable