Anaphylactic shock due to intravesical administration of pirarubicin hydrochloride for the fifth time.

We report the first case of anaphylaxis induced by intravesical administration of pirarubicin hydrochloride during spinal anesthesia. The patient was a 64-year-old woman being followed up for transitional cell carcinoma of the bladder. Anaphylaxis occurred the fifth time pirarubicin hydrochloride was administered intravesically. Pirarubicin hydrochloride, an anthracycline antitumor antibiotic that is widely used for intravesical instillation chemotherapy, is administered at the end of surgery. Because this is about the time that the patient is leaving the operating room, attention to patient monitoring tends to be divided. Because anaphylaxis may occur at this time, staff should remain vigilant of the risk of anaphylaxis.
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