Spaying a seven year old dog?

[Varga]

Hi.
I’m planning to have my seven year old Jack Russell spayed.

I know this isn’t the best age for a dog to get spayed.. But lack of education and other things have prevented me from taking this issue serious enough..

She’s has never had puppies and has never had any health problems.. But it still worries me..

My other dog Kelly died as a result of this operation so I keep getting these horrifying images into my head.. But at the same time I know it’s totally pointless of me, because if Kelly had been spayed at a younger age she wouldn’t have needed to get spayed at the age of 12/13 (she had pyometra and wouldn't respond to the medicine, which we tried out first)

Do I worry too much? What are the risks of spaying a seven year old dog? Any advice or experiences is very much appreciated..

Thanks

-Varga