Pleural effusion from Peritoneal Dialysis prior to kidney transplant.

Has anybody had this issue of a pleural effusion from Peritoneal Dialysis? ( A build up of fluid outside the lungs).
My husband was approved for a kidney transplant and was put on the list. They called him to set a date since I’ll be his direct donor since we are a match. But we discovered a pleural effusion 2 weeks ago and now the transplant has been put on hold. We have gone through 9 months of evaluations at Mayo and made it to the list. And this issue is holding him back. Extremely frustrating..Has anyone heard of this before or know anybody that had a pleural effusion? Thank you. And my best to you all.