Can MRI Replace Nasopharyngoscopy in the Evaluation of Velopharyngeal Insufficiency?

Author:

Williams Jessica L.123ORCID,Perry Jamie L.4ORCID,Snodgrass Taylor D.4ORCID,Singh Davinder J.1256,Temkit M’hamed7,Sitzman Thomas J.1256ORCID

Affiliation:

1. Phoenix Children’s Center for Cleft and Craniofacial, Phoenix Children's Hospital, Phoenix, AZ, USA

2. Division of Plastic Surgery, Phoenix Children's Hospital, Phoenix, AZ, USA

3. Program of Speech and Hearing Science, College of Health Solutions, Arizona State University, Tempe, AZ, USA

4. Department of Communication Sciences and Disorders, East Carolina University, Greenville, NC, USA

5. Division of Plastic Surgery, Mayo Clinic Arizona, Scottsdale, AZ, USA

6. Department of Child Health, University of Arizona College of Medicine – Phoenix, Phoenix, AZ, USA

7. Department of Clinical Research, Phoenix Children's Hospital, Phoenix, AZ, USA

Abstract

Objective To investigate whether flexible nasopharyngoscopy, when performed in addition to magnetic resonance imaging (MRI), influences the type of surgery selected or success of surgery in patients with velopharyngeal insufficiency (VPI). Design Cohort study. Setting A metropolitan children's hospital. Patients Patients with non-syndromic, repaired cleft palate presenting for management of VPI. Interventions MRI and nasopharyngoscopy or MRI alone for preoperative imaging of the velopharyngeal mechanism. Main Outcome Measures (1) Surgical selection and (2) resolution of hypernasality. All speech, MRI, and nasopharyngoscopy measurements were performed by raters blinded to patients’ medical and surgical history. Results Of the 25 patients referred for nasopharyngoscopy, 76% completed the exam. Of the 41 patients referred for MRI, the scan was successfully completed by 98% of patients. Completion of nasopharyngoscopy was significantly (p=0.01) lower than MRI. Surgical selection did not significantly differ (p=0.73) between the group receiving MRI and nasopharyngoscopy and the group receiving MRI alone, nor was there a significant difference between these groups in the proportion of patients achieving resolution of hypernasality postoperatively (p=0.63). Percent total velopharyngeal closure assessments on nasopharyngoscopy and MRI were strongly correlated (r=0.73). Conclusions In patients receiving MRI as part of their preoperative VPI evaluation, the addition of nasopharyngoscopy did not result in a difference in surgical selection or resolution of hypernasality. Routine inclusion of nasopharyngoscopy may not be necessary for the evaluation of velopharyngeal anatomy when MRI is available.

Funder

National Institute of Dental and Craniofacial Research

Publisher

SAGE Publications

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