Laryngeal Papillomatosis with Microlaryngoscopy and Bronchoscopy with Microdebridement, CO2 Laser Ablation, and Cidofovir Injections.

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Author: Anna Gibson
Published:
Specialties: Laryngology, Otolaryngology, Pediatric Otolaryngology
Schools: Arkansas Children's Hospital, University of Arkansas for Medical Sciences
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Anna Celeste Gibson, B.S., Mariah Small, M.D., Gresham Richter, M.D.

University of Arkansas for Medical Sciences, Arkansas Children's Hospital

Introduction:

A papilloma is a benign tumor that is caused by human papillomavirus (HPV) commonly due to the strains 6 and 11. Children acquire these tumors intrapartum from an infected mother. HPV infects natural and metaplastic squamous mucosa which is the type of epithelium that lines the vocal folds. Tumors present as numerous, verrucous outgrowths from the mucosa and can become symptomatic due to mass effect. Common symptoms include hoarseness, dysphonia, aphonia and most concerning, respiratory distress.

A 7-year-old patient with dysphonia secondary to laryngeal papillomatosis also known as recurrent respiratory papillomatosis undergoes microlaryngoscopy and bronchoscopy with microdebridement, CO2 laser ablation, and cidofovir injections.

Methods:

The patient underwent spontaneous ventilation anesthesia and a dental guard was placed. The patient was positioned for microlaryngoscopy and the larynx was visualized and anesthetized with topical lidocaine. A zero-degree Hopkins rods was passed through the supraglottis, glottis and subglottis to document findings. There was supraglottic papillomatosis notably of the laryngeal surface of the left epiglottis, papillomatosis of the bilateral false vocal folds and papillomatosis of the bilateral true vocal folds with right more affected than left and anterior commissure involvement. The scope was then withdrawn and reintroduced to perform bronchoscopy. The scope was advanced through the trachea, carina and primary and secondary bronchi bilaterally. All were within normal limits. The Benjamin-Lindholm laryngoscope was passed into the vallecula and larynx and suspended in a normal fashion. The zero-degree Hopkins rod was used to visualize the larynx. 2 cc of 1% lidocaine with 1:100,000 epinephrine was injected into the bulk of the papillomas and then several biopsies were taken from this area. The microdebrider was used to debulk these areas. Protective eyewear was used by everyone in the operating room. The patient's face was protected with water soaked towels and all oxygen sources were removed from the patient. The CO2 laser was set to 2 watts continuous and used to debulk the papillomas with eschar noted after each application. Care was taken to avoid injury to the deep elements of the true vocal folds. Any residual papillomas at the anterior vocal folds were then injected with 1 cc of cidofovir. All instrumentation was removed, the patient was extubated, awakened, and transferred to the recovery room.

Results:

The patient was discharged the same day without complications. He will follow up for revision microdebridement, CO2 laser ablation and cidofovir injections.

 

Conclusion:

Microlaryngoscopy and bronchoscopy with microdebridement, CO2 laser ablation, and cidofovir injections is a successful solution for laryngeal papillomatosis and has been proven to eradicate the disease in many cases.

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