Rotablator is a therapeutic procedure where a very tiny “football-shaped” device attached to the tip of a tiny catheter is advanced to a heavily calcified segment of a coronary artery and rotated at high speed (up to 200,000 rotations per minute) to remove the calcium in coronary artery plaques. The tiny football shape end is tipped with diamond chips, which will pulverise tissue into tiny pieces smaller than red blood cells, and will be carried away in the bloodstream and disposed of. A rotablator procedure is indicated to “debulk” a heavily calcified coronary artery narrowing prior to balloon dilatation and stent implantation. The presence of excessive calcium normally prevents a balloon from being inflated and a stent may not be able to be advanced to the site because of the calcium blocking the way. Dr. Szto is trained and experienced in the use of rotablator or rotational atherectomy. Here is a link to a video on various types of atherectomy devices.