• Yun-Jeong Bae, Chan Sun Park, Jae Keun Lee, Eunheui Jeong, Tae-Bum Kim, You Sook Cho, and Hee-Bom Moon.
• Division of Allergy and Clinical Immunology, Department of Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
• J. Korean Med. Sci. 2008 Jun 1; 23 (3): 526-8.

AbstractChlorhexidine is widely used as an antiseptic and disinfectant in medical and nonmedical environments. Although the sensitization rate seems to be low, its ubiquitous use raises the possibility of sensitization in many patients and medical care workers. We describe a patient with anaphylaxis during digital rectal examination with chlorhexidine jelly. Urticaria, angioedema, dyspnea, and hypotension developed within a few minutes of the rectal examination. The patient fully recovered after treatment with epinephrine and corticosteroids. Skin tests for chlorhexidine were undertaken 5 weeks later, showing positive prick and intradermal skin tests. Within 30 min of the skin test, the patient complained of febrile sensation, chest tightness, angioedema, and urticaria on the face and trunk. An enzyme allergosorbent test for latex was negative. We present this case to alert clinicians about hypersensitivity to chlorhexidine that could potentially be life-threatening. We suggest that chlorhexidine should be recognized as a causative agent of anaphylaxis during procedural interventions.

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