Hereditary angioedema in children
C1 inhibitor (C1 INH) deficiency can cause hereditary angioedema. The C1 INH concentration in 85% of patients decreased to 5% to 30% of normal (type I); another 15% of patients had normal or increased levels of C1 INH immune cross-reactive protein in plasma, but were nonfunctional (type II).
The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.