IP Danaparoid or Sodium Citrate for Fibrin??

We have our next clinical dilemma. A HD patient, who has been diagnosed with HIT, is switching to PD.
I know that due to Heparin's size and charge, that it is felt that Heparin does not cause systemic anticoagulation when use IP for fibrin. However, I have discovered a case report out of Alberta where a patient developed HIT secondary to IP Heparin. So, we can't use Heparin in this patient.
My colleague and I were examining the Coagulation Cascade - and concluded that both Sodium citrate and Danaparoid work above the Thrombin to Fibrin formation.
Does anyone have any experience using Danaparoid or sodium citrate IP? What dose would we use in the event of fibrin formation?
Thanks
Lisa
York Region CKD Program