This article is from the Rottweilers Breed FAQ, by firstname.lastname@example.org (Denise Gross).
The most common heart problem seen in Rottweilers is Sub-Aortic
Stenosis. This disorder can be very mild or so serious that it results
in sudden death. Reputable breeders, working with canine
cardiologists, hope to identify the mode of inheritance of this and
other heart problems.