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Published on: June 24, 2025
[Anaphylactic reactions to chlorhexidine during urinary catheterisation]
E J van Zuuren1, F Boer, E J S Lai a Fat
1Leids Universitair Medisch Centrum, polikliniek Huidziekten, BI-Q, Postbus 9600, 2300 RC Leiden. e.j.van_zuuren@lumc.nl
Chlorhexidine, a common antiseptic, can cause severe anaphylactic reactions during medical procedures. Previous patient reactions to chlorhexidine were overlooked, highlighting a critical diagnostic gap.
Area of Science:
- Anesthesiology
- Urology
- Allergy and Immunology
Background:
- Chlorhexidine is a widely utilized antiseptic and disinfectant in medical settings.
- Anaphylactic reactions to chlorhexidine have been documented, particularly during surgical and urological procedures.
Observation:
- Three male patients experienced anaphylaxis during medical procedures (two under general anesthesia, one during urinary catheterization).
- All patients had a history of prior reactions to chlorhexidine, which were not adequately recognized or investigated.
Findings:
- Allergy testing confirmed chlorhexidine as the causative agent in all three cases.
- The identified cases underscore the potential for chlorhexidine-induced anaphylaxis even when prior sensitivities are known.
Implications:
- Healthcare providers should maintain a high index of suspicion for chlorhexidine allergy in patients presenting with anaphylaxis during procedures.
- Thorough patient history, including previous reactions to antiseptics, is crucial for preventing recurrent anaphylaxis.
- Increased awareness and diagnostic vigilance regarding chlorhexidine hypersensitivity are necessary to improve patient safety.
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