[vetvetdoug]

Dogs do not have heart attacks per se. They have heart failure, chordae tendenae ruptures but no blockages as in people. My take is the dog had some major other problem that caused the sudden death, usually a neoplastic lesion that ruptures and results in death within minutes.

[Silentgypsy]

That sounds like what my vet told me. What gets me frosted is that they use non-human subjects for experimentation. When it’s obvious that you can’t extrapolate from animals to humans, —oh, never mind. Even purely functional things like floating a Swan doesn’t account for the anatomical/structural differences. (I’m hijacking the thread. Please excuse. I’ll go have another cup of tea.)