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Otolaryngol Head Neck Surg. 2011 Apr;144(4):639-41. doi: 10.1177/0194599810395353. Epub 2011 Feb 4.

Inhaled cidofovir as an adjuvant therapy for recurrent respiratory papillomatosis.

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  • 1Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.


A previously healthy, full-term, 4-month-old boy presented with progressively weakening cry, hoarseness, and increased work of breathing. Flexible fiberoptic laryngoscopy revealed glottic papillomas, which were endoscopically removed with a microdebrider in the operating room (Derkay score 23). The patient was diagnosed with recurrent respiratory papillomatosis that disseminated throughout his airway. Despite biweekly serial microdebridements, intralesional cidofovir, and systemic interferon-α, the patient's health declined substantially (Derkay score 40), culminating in a 47-day hospitalization due to complications of his disease. Inhaled cidofovir was initiated after all conventional treatments had failed. Within 6 weeks of therapy (40 mg daily per treatment, 12 days on and 2 days off), the papillomatous disease improved substantially (Derkay score 23). While inhaled cidofovir appeared to significantly reduce papillomatous disease burden in this patient, further investigation into its long-term effectiveness and safety profile is necessary.

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