Hypersensitivity to Intravenous Iron Preparations.

Area of Science:

• Hematology
• Immunology
• Pharmacology

Background:

• Intravenous (IV) iron is crucial for iron deficiency anemia when oral iron fails.
• Acute hypersensitivity reactions (HSRs) to IV iron are rare but severe.
• Identifying risk factors is key for safe IV iron administration.

Purpose of the Study:

• To review the risk factors and management of acute hypersensitivity reactions to IV iron infusions.
• To emphasize the importance of vigilant monitoring and prompt intervention during IV iron therapy.

Main Methods:

• Literature review of reported cases and risk factors for IV iron-induced HSRs.
• Analysis of clinical guidelines for managing adverse reactions during iron infusions.

Main Results:

• Major risk factors for HSRs include prior reaction, rapid infusion, multiple allergies, atopy, asthma, urticaria, and high serum tryptase.
• Meticulous observation and prompt, severity-based interventions are critical for patient safety.
• Avoiding IV iron in patients with prior HSRs is not standard practice.

Conclusions:

• While rare, severe hypersensitivity reactions to IV iron necessitate careful patient selection and administration.
• Well-trained staff are essential for recognizing and managing adverse events during iron infusions.
• Risk management strategies should focus on monitoring and preparedness rather than absolute avoidance.