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  • Title: Intralesional cidofovir for recurrent respiratory papillomatosis in children.
    Author: Pransky SM, Magit AE, Kearns DB, Kang DR, Duncan NO.
    Journal: Arch Otolaryngol Head Neck Surg; 1999 Oct; 125(10):1143-8. PubMed ID: 10522508.
    Abstract:
    OBJECTIVE: To assess the potential benefit of intralesional administration of cidofovir, an acyclic nucleoside phosphonate with activity against several DNA viruses, for treating severe respiratory papillomas in pediatric patients. DESIGN: Prospective case series. SETTING: Tertiary care children's hospitals. PATIENTS: Five pediatric patients with severe recurrent respiratory papillomatosis requiring laryngoscopy with carbon dioxide laser therapy more frequently than once a month to maintain airway patency. Each patient underwent between 12 and 33 laryngoscopies with laser treatment prior to being injected with cidofovir. INTERVENTION: Microsuspension laryngoscopy with intralesional injection of cidofovir (Vistide) in conjunction with mechanical debulking and carbon dioxide laser of papillomas. MAIN OUTCOME MEASURE: Papilloma stage at time of serial laryngoscopies. RESULTS: One patient was disease free and 3 patients demonstrated a dramatic response to adjuvant therapy with cidofovir at the 9-month follow-up visit after the last injection of cidofovir. One patient showed an improvement in papilloma stage that was possibly related to concurrent therapy with interferon. CONCLUSIONS: Intralesional injection of cidofovir seems to be of benefit in the treatment of severe respiratory papillomatosis in pediatric patients. Larger prospective studies with longer follow-up will be required before cidofovir can be considered an accepted means of managing this difficult disease.
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