However, the dialysate albumin mass was highest in MCO-HD (2547.32 ± 968.31 mg/session, p < 0.001), followed by post-OL-HDF (778.32 ± 313.17 mg/session) and HF-HD (59.91 ± 70.82 mg/session) (Figure 2). Here, ALB is linked to hydrops fetalis.