Velopharyngeal insufficiency after cleft palate repair in patients with isolated Robin sequence versus isolated cleft palate: A systematic review.

Background: Robin sequence (RS) is characterized by micrognathia, glossoptosis, and upper airway obstruction, and is often combined with a cleft palate. It is unclear whether RS negatively impacts the development of velopharyngeal incompetence (VPI) and attainable speech outcomes. This study systematically reviewed speech outcomes in patients with cleft and isolated RS (IRS) compared with only isolated cleft palate (ICP).