I would guess you'd have to be her age (81) to access this. All indications she was in good health. Why this minor procedure caused all this is a mystery. There's a difference between being 81, in failing health and counting the days as opposed being 81, in great health and expected to live another 10-15 yrs. Then I'd say you got cheated.
See how this plays out as far as liability goes. If I were one of her Dr's, I'd be checking my insurance policy.
Her personal politics I didn't like, but she was funny. Any death at any time is a shame although a blessing if they are suffering