Best wishes to you, and your mum, RIP.
I had a small scare. My dad was advised to get a heart artery reamed. Did that last week. The procedure is almost trivial, they run a grabber into a neck vein to the heart. Of course the risk is they stir-up crud which goes to brain and gives him a stroke, which is what the procedure is supposed to prevent. So they kept him overnight and checked him every hour. Mom tried to keep us updated but I think she was balancing a cellfone on a bedpan, cryptic. In the end, he has a neck wound which embarrasses him but most of his friends have had similar work so NBD. For more fun, this was their 65th wedding anniversary!