Our history



World firsts at the Montreal Heart Institute

The Montreal Heart Institute has continually made a mark on the international scene with world firsts :

  • Intramyocardial implantation of the internal mammary artery, which preceded the development of aortocoronary bypasses, in 1955.
  • Selective femoral coronography, in 1964. 
  • Paper published describing blockages that occur in grafts after an aortocoronary bypass, which helped to modify heart surgery techniques throughout the world, from 1972-1974.
  • Radial approach for selective coronary angiography, in 1979.
  • Percutaneous laser coronary dilatation, in 1987.
  • Cryoablation (extreme cold to ablate tissue) to treat arrhythmia, 1999.
  • In collaboration with the CHU Sainte-Justine, a heart catheterization procedure using the new CROSSER™ technology on a child with a completely blocked heart artery, in 2006.