Acquired C1 inhibitor deficiency
ICD-10 D84.1 · ICD-11 4A00.15

Treatment of Acquired C1 Inhibitor Deficiency (AAE-C1-INH) in Patients Undergoing Dental, Medical, Obstetric or Surgical Procedures

Clinical Scenario

This protocol targets patients with acquired angioedema secondary to C1 esterase inhibitor deficiency (AAE-C1-INH) who are scheduled to undergo a dental, medical, obstetric, or surgical procedure — a setting that requires specific pre-procedural management distinct from routine care.

Patient Population

Patients with AAE-C1-INH are eligible for pre-procedural management before dental, medical, obstetric, and surgical interventions. The planned procedure is the defining trigger that places the patient within this clinical pathway.

Management Approach

The strategy in this setting centres on prophylaxis with a C1-esterase inhibitor administered ahead of the procedure. The complete regimen — including agent selection, sequencing, and procedure-specific considerations — is set out in the full structured protocol.

Regimen details, dosing, and the full clinical algorithm are available via the link below.
Instant Access to Structured Evidence-Based Regimens
References

Patients with AAE-C1-INH are eligible for prophylaxis with C1-esterase inhibitor before undergoing dental, medical, obstetric or surgical procedures.

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