Adenoidectomy and persistent velopharyngeal insufficiency: Considerations, risk factors, and treatment

Abstract

Importance: Persistent velopharyngeal insufficiency (VPI) is a rare but well-recognized complication of adenoidectomy. VPI can have a significant impact on the communication of a child.

Objective: To describe the pathophysiology of post-adenoidectomy VPI, identify its associated risk factors, and illustrate the techniques used to treat the entity.

Evidence review: A search of English or translated English articles concerning adenoidectomy, partial adenoidectomy, superior adenoidectomy; and velopharyngeal insufficiency, speech and voice from 1980 to 2021 was performed using Pubmed and Embase. Data from prospective and retrospective studies and their relevant references were pooled.

Results: By objective measures, hypernasality is noted in many pediatric patients post-adenoidectomy, but this typically resolves in 3-6 months. Risk factors for the development of post-adenoidectomy VPI include low birth weight, family history of hypernasality, and history of speech problems or nasal regurgitation. The cleft palate, submucous cleft palate, poor palate mobility, and a deep pharynx may indicate susceptibility to VPI. Speech therapy is successful in up to 50% of patients, while surgical intervention may be tailored based on the diagnostic evaluation of the velopharynx with videofluoroscopy or nasoendoscopy.

Conclusion: We present a comprehensive review of the literature on the pathophysiology, risk factors, and treatment of post-adenoidectomy VPI. We hope to bring awareness to the factors that can lead to a rare but potentially devastating complication in one of the most common procedures performed by Otolaryngologists.

Keywords: Adenoidectomy; Hypernasality; Nasal resonance; Velopharyngeal insufficiency.