Hemodialysis studies of antidiuretic hormone

Hemodialyzability of antidiuretic hormone (ADH) was studied in 14 patients undergoing hemodialysis procedure. In addition hemofiltration (dry dialysis) was performed in 8 patients and hemofiltrate samples were collected for ADH assay. The mean values for plasma ADH level in ingoing and outgoing blood were nearly identical. Moreover, no ADH was detectable in the hemofiltrate samples. These findings suggest lack of significant ADH removal by dialysis or hemofiltration.