A question for Rottie owners

[Goldfields]

I hope I have this in the right part of the forum? I am curious to know whether cardiomyopathy is a problem in Rotties in Canada? My younger brother has just lost his 6th Rottie to it today. I can't tell you if they were related or not, or how old. I think my sister would like to see him go back to his first breed, English Setters, as those he had lived to the ripe old age of 16 or 17, but obviously he must love his Rotties to put hiimself through this sort of heartbreak over and over. She said his have always had lovely temperaments. So sad to see this happening in a breed.