Cordero, Kelly N

Objective: Describe changes in symptoms of velopharyngeal insufficiency (VPI)—hypernasality, audible nasal emission, and VPI-related quality of life—following LeFort I osteotomy in individuals with cleft palate +/- cleft lip. Design: Single-center, retrospective cohort study. Participants: Twenty-one patients with a history of cleft palate repaired in infancy were included in this study. Ten patients had no prior history of VPI surgery and eleven had a pharyngeal flap in place at the time of LeFort I osteotomy. The mean age at time of surgery was 17.2 years. Main Outcome Measure: Pre- and postoperative hypernasality severity, frequency of audible nasal emission, and total score on the VPI Effects on Life Outcomes youth questionnaire (VELO-Y) before and after LeFort osteotomy I. Fischer exact test was used to assess differences between groups for categorical variables and a t test was used for continuous variables. Results: Patients with no prior history of VPI management had a significant increase in hypernasality severity compared with those with a pharyngeal flap in place at the time of surgery ( P =0.004). Patients without a prior history of VPI management also had a significant increase in frequency of audible nasal emission, while patients with a pharyngeal flap had decreased audible nasal emission ( P =0.004). There was not a significant difference between groups for change in the total score on the VELO-Y ( P =0.16). Conclusions: Findings from this study may improve preoperative counseling provided to patients and caregivers on the risk of acquiring VPI after LeFort I osteotomy based on prior VPI surgical history.

Purpose: The aim of this study was to investigate whether successful surgical management of velopharyngeal insufficiency (VPI) aids in the remediation of compensatory misarticulation errors (CMAs) among children with VPI and CMAs. Method: Fourteen participants with VPI and use of CMAs from a larger study were included in this retrospective cohort study. The mean age at the time of preoperative evaluation was 8.9 years ( SD = 1.1). Perceptual ratings of hypernasality, phonetic transcription, and anatomic measurements from magnetic resonance imaging were performed by raters blinded to the participants' medical and surgical history. The mean percentage of CMAs produced on the American English Sentence Sample was calculated. The Wilcoxon signed-ranks test was used to compare the change in CMA use pre- and postoperatively. During the study period, 71% ( n = 10) of participants received speech therapy. Results: Nine participants had resolved hypernasality after surgery, and five had persistent hypernasality. Among those with resolved hypernasality, the mean percentage of CMAs significantly decreased from 14.6% preoperatively to 1.1% postoperatively ( p = .028). For participants with persistent hypernasality, the mean percentage of CMAs decreased from 27.6% to 22%; this change was not significant ( p = .586). Conclusions: Correction of VPI may aid in the remediation of CMAs as participants have more normal anatomy to achieve velopharyngeal closure. These findings suggest correction of VPI may reduce the amount of speech therapy needed to treat CMAs.

Purpose: The purpose of this study was to investigate the relationship between perceptual ratings of hypernasality made during connected speech and velopharyngeal (VP) gap size measured in millimeters in the sagittal plane during sustained vowel production using magnetic resonance imaging (MRI). Method: A retrospective cross-sectional analysis was completed. A subgroup of 110 participants from another study with an M age of 10.1 years presenting for management of VP insufficiency was included. Perceptual ratings of hypernasality during connected speech and measurement of gap size during sustained /i/ production on MRI were performed by raters blinded to the participants' medical and surgical history. Results: There was a moderate-to-strong, positive correlation ( r = .61; p < .001) between hypernasality ratings and VP gap size measured on MRI using sustained /i/. The odds of a higher hypernasality rating increased as the gap size increased (odds ratio = 1.34; 95% CI [1.20, 1.49]; p < .001). The predicted probability for hypernasality ratings of none/minimal/mild steadily decreased as the gap size increased indicating that lower ratings of hypernasality were associated with smaller gap sizes. For the rating of “moderate” hypernasality, the predicted probability of the rating steadily increased up to 8 mm and then decreased as the gap size continued to increase. The predicted probability for a hypernasality rating of “severe” consistently increased as the gap size increased. Conclusions: Hypernasality ratings made at the connected speech level were significantly associated with VP gap size as measured during sustained vowel production. These findings suggest sustained vowel production elicited on MRI may adequately characterize VP gap size in the evaluation of VP insufficiency.