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Alpha-Gal Syndrome and Cardiac Surgery.
Jessica Zvara1, Austin L Smith1, Michael A Mazzeffi1
1Department of Anesthesiology, University of Virginia Health System, Charlottesville, VA USA.
Journal of Cardiothoracic and Vascular Anesthesia
|August 3, 2024
Summary
Alpha-gal syndrome (AGS) causes allergic reactions to mammalian products due to tick bites. Awareness is crucial for managing cardiac surgery patients at risk from mammalian-derived medications and devices.
Area of Science:
- Immunology
- Allergology
- Cardiology
Background:
- Galactose-alpha-1,3-galactose (alpha-gal) is a mammalian carbohydrate absent in humans.
- Tick bites can induce specific IgE antibodies, leading to alpha-gal syndrome (AGS).
- AGS manifests as delayed allergic reactions to mammalian products, including meat and medications.
Purpose of the Study:
- To review the literature on alpha-gal syndrome in cardiac surgery patients.
- To highlight the risks associated with mammalian-derived products in this population.
- To present a treatment approach for AGS in cardiac surgery.
Main Methods:
- Narrative review of published literature.
- Focus on alpha-gal syndrome and its implications in cardiac surgery.
- Discussion of perioperative and postoperative management strategies.
Main Results:
- Mammalian-derived products like heparin and bioprosthetic valves pose significant risks in cardiac surgery for AGS patients.
- Delayed urticarial and gastrointestinal symptoms are characteristic of AGS.
- Preoperative identification and perioperative management are key to reducing risks.
Conclusions:
- Cardiac surgery patients with AGS require careful consideration of mammalian-derived materials.
- Increased awareness of AGS can improve patient outcomes and safety.
- A proactive management strategy is essential for minimizing allergic reactions.
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