@sdstoryteller Hello and welcome to Connect. I am a Mayo patient and I like to welcome new members here. This sounds like a difficult situation for you. I don't have experience with a paralyzed diaphragm, but there have been other patients on here sharing information, and there is a surgeon who does a phrenic nerve graft to re-innervate the diaphragm and get it functioning again. Here is the link to information.

Phrenic nerve grafting
https://www.advancedreconstruction.com/
This link is about plication surgery.
"Long-term results of diaphragmatic plication in adults with unilateral diaphragm paralysis"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2996377/
Has this condition been disabling to you? Does this sound like something you may want to pursue? I hope you will find a solution and path back to good health.