Chymopapain-induced hypersensitivity following chemonucleolysis.

: This study describes the changes in chymopapain-specific IgE antibody levels in patients following chemonucleolysis with Chymodiactin. Using the ChymoFAST method, chymopapain-specific IgE values were studied in 91 patients prior to and for 2 months post-Chymodiactin chemonucleolysis. A total of 8.8% (17/91) developed IgE levels greater than or equal to 0.06 IU/ml. Those patients with detectable IgE levels prior to chemonucleolysis were more likely than those with nondetectable preinjection levels (36.4% versus 4%) to develop chymopapain-specific IgE levels greater than or equal to 0.06 IU/ml.