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Table 1 Consensus guideline C1 INH dosages for procedural prophylaxis

From: Successful C1 inhibitor short-term prophylaxis during redo mitral valve replacement in a patient with hereditary angioedema

Patient weight C1 INH dose
≤50 kg 500 units
>50 kg to ≤100 kg 1000 units
>100 kg 1500 units
  1. Administer 1 hour before procedure. Have additional doses available if needed during and after surgery. C1 INH = C1 esterase inhibitor.