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Recurrent Respiratory Papillomatosis (RRP) — Detailed

Benign squamous papilloma proliferation of the upper airway caused by HPV-6 and HPV-11, with juvenile-onset (JoRRP) and adult-onset (AoRRP) forms requiring repeated debulking and emerging adjuvant therapies (bevacizumab, HPV vaccine).

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

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This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our KBB (Kulak Burun Boğaz) department. Book Appointment →

What is Recurrent Respiratory Papillomatosis (RRP) — Detailed?

Recurrent respiratory papillomatosis (RRP) is a benign but potentially aggressive proliferation of squamous papillomas in the upper aerodigestive tract caused by mucosotropic human papillomavirus, predominantly HPV-6 and HPV-11. It manifests as exophytic wart-like clusters preferentially involving anatomic transition zones (laryngeal vestibule, vocal folds, subglottis, tracheal carina, bronchial bifurcations).

Two clinical forms exist: juvenile-onset RRP (JoRRP, presentation < 12 years) acquired by vertical perinatal transmission from a mother with genital condyloma, and adult-onset RRP (AoRRP, peak 30–50 years) likely from oral sexual exposure or latent reactivation. HPV-11 carries a worse prognosis with more frequent recurrence, distal spread (10–30%) and rare malignant transformation (1–3%).

Cornerstone treatment is microlaryngoscopic debulking with cold instruments, powered microdebrider, KTP laser (vascular-selective 532 nm) or CO2 laser, aiming to preserve vocal-fold mucosa and the anterior commissure. Adjuvants include intralesional cidofovir, systemic bevacizumab (anti-VEGF), HPV vaccination (Gardasil-9), and intralesional PD-1 blockade in trials. Tracheostomy is avoided unless airway-threatening because it accelerates distal seeding.

Symptoms

Progressive hoarseness, voice fatigue, biphasic stridor
Chronic non-productive cough or recurrent croup
Inspiratory stridor and respiratory distress in young children
Globus sensation, throat clearing, dysphagia in adults
Aphonia or weak cry in infants
Hemoptysis or post-obstructive pneumonia with distal tracheobronchial spread
Failure to thrive in misdiagnosed pediatric cases

Risk Factors

Maternal genital HPV (condyloma acuminata) at birth — JoRRP
Vaginal delivery of first-born to a teenage mother (classic JoRRP triad)
High-risk sexual exposure and oral HPV — AoRRP
HLA-DRB1*0301 and KIR/HLA susceptibility haplotypes
Immunosuppression (HIV, transplant) increasing recurrence
Smoking, laryngopharyngeal reflux promoting recurrence
Lack of prophylactic HPV vaccination

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Stridor or noisy breathing in any infant
  • Persistent hoarseness > 3 weeks in adults or > 2 weeks in children
  • Recurrent croup-like episodes outside expected age
  • Voice changes after a previously stable RRP interval
  • New cough, hemoptysis or recurrent pneumonia in known RRP
  • Acute dyspnea, cyanosis or respiratory distress (airway emergency)
  • Postoperative bleeding, fever or worsening voice

Treatment Methods

01
Awake transnasal flexible laryngoscopy and/or rigid microlaryngoscopy under general anesthesia (jet ventilation, spontaneous-respiration TIVA)
02
Microdebrider or cold-steel debulking with mucosa-sparing technique; KTP 532 nm angiolytic laser for office-based or operative use; CO2 laser only when needed
03
Avoid anterior commissure web by staged contralateral resection and Mitomycin-C application
04
Intralesional cidofovir 5 mg/mL after debulking (off-label, with informed consent)
05
Systemic bevacizumab 5–10 mg/kg every 3 weeks for aggressive HPV-11 disease, distal spread, or > 4 surgeries/year
06
9-valent HPV vaccination (Gardasil-9) as adjuvant — reduces recurrence intervals
07
Reflux control (PPI), smoking cessation, voice therapy, periodic surveillance laryngoscopy and CT/MRI for distal disease

Which Department to Visit?

You can visit our KBB (Kulak Burun Boğaz) department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.