Yes, caregiver222, you're right.
That is indeed a long time for doctors or hospitals to keep medical records.
I did not read the "...even close to 40 years ago.." lol!
That's what happens when, I scan posts too fast!
The laws for retention of medical records in the U.S. mandate seven year retention.
It is unlikely that these records exist.
Hmm, every state has different rules, for how long records are kept.
You need to find out this, before you do anything else.
Usually an online search is all it will take for you to find out what the rules are for the state, where your hospital stay took place.
Once you verify that they are still available, then you must make a request in writing, with all the pertinent information.
And bear in mind the 2 following things:
Expect this to take time and also there will likely be a fee for the service .
Hope this helps.
Niko