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Updated: Apr 28, 2026

Measuring Local Anaphylaxis in Mice
Published on: October 14, 2014
A case of midazolam anaphylaxis.
Jae Gyu Shin1, Jong Ho Hwang1, Ban Seok Lee2
1Department of Internal Medicine, Busan Medical Center, Busan, Korea.
Anaphylactic reactions to midazolam, a common anesthetic, are rare. This case report details a severe hypersensitivity reaction requiring emergency intervention, confirmed by elevated tryptase levels.
Area of Science:
- Anesthesiology
- Clinical Immunology
- Pharmacology
Background:
- Midazolam is widely used for conscious sedation in medical procedures.
- Anaphylactic reactions to midazolam are infrequently documented in medical literature.
Purpose of the Study:
- To report a rare case of midazolam-induced hypersensitivity.
- To highlight the diagnostic confirmation of anaphylaxis via serum tryptase levels.
Main Methods:
- Case report of a patient experiencing an adverse event post-midazolam administration.
- Measurement of serum tryptase levels to confirm anaphylaxis.
Main Results:
- The patient exhibited signs of a severe hypersensitivity reaction to midazolam.
- Elevated serum tryptase levels confirmed the anaphylactic nature of the reaction.
- Emergency measures were necessary for patient recovery.
Conclusions:
- Midazolam can rarely cause severe anaphylactic reactions.
- Serum tryptase is a valuable biomarker for diagnosing midazolam-induced anaphylaxis.
- Awareness of this rare adverse effect is crucial for patient safety during sedation.
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