We usually only regret the things we didn't do.
You never know how people are going to react. A friend of mine (who is considered apostate and has been shunned by his beloved mother for many years) went to the hospital when her health was in danger. They have been in communication ever since. He has been in pain missing her (and she has been in pain missing him, thinking she was doing the right thing) for over a decade. Now that long, painful chapter is behind them.
Go. But don't force anything. Go in peace and love and don't act angry if things don't go as planned... be as calm and loving as you can be. If nothing else, you don't want to add stress to someone who is hospitalized.
Love,
Baba.