Velopharyngeal insufficiency managed by autologous fat grafting in patients with aberrant courses of internal carotid arteries

Introduction: Velopharyngeal insufficiency (VPI) is usually managed, besides speech therapy, by performing a velopharyngoplasty. An alternative approach is autologous fat grafting (AFG) of the posterior pharyngeal wall. About 5% of the population has internal carotid arteries (ICA) with an aberrant course. This anatomic variation can be responsible for surgical difficulties while when performing a velopharyngoplasty, and therefore lead surgeons to only consider a speech reeducation of VPI. However, AFG is does not bear such surgical morbidity.

Objective: The aim of this study is to retrospectively determine AFG efficiency on VPI in patients with aberrant ICA's courses who cannot benefit from a velopharyngoplasty, by comparing pre- and postoperative Borel Maisonny score (BMS) and intelligibility (Intell).

Methods: We conducted a retrospective study in 2 centers, including children with VPI and aberrant ICA's courses who underwent an AFG of the posterior pharyngeal wall from 2004 to 2015, in addition to speech therapy.

Results: Nine patients (4-11 years old) underwent the surgical procedure, 8 of them presenting a 22q11 microdeletion. All improved their VPI by AFG of the pharyngeal wall according to BMS and Intelligibility after a 10 months follow-up. The effect was stable after 3 years of follow-up. No severe complication (apnea, vascular injury) occured.

Conclusion: AFG of the pharyngeal wall, associated with speech therapy, seems to be a safe procedure for patients with VIP and aberrant ICA's courses. Multiple procedures are possible if needed.