The woman is not being seen by a consultant, has not been in hospital for more than 4 years. This suggests she is currently 'well'.
I presume the blood pressure, cholesterol, epilepsy and diabetes are very well controlled by medication and lifestyle.
The strokes is altogether another thing, but if it has been years since the last stroke, and her overall health has improved, there is no reason to believe another stroke is imminent.
It's a gamble, excluding existing conditions, but MAY in this lady's case, be an acceptable option.