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  • Title: Intubation-Related Laryngeal Deficiency and Vocal Fold Immobility in Pediatric Premature Patients.
    Author: Zur KB, Douglas J, Carroll LM.
    Journal: Laryngoscope; 2021 Nov; 131(11):2550-2557. PubMed ID: 33956345.
    Abstract:
    OBJECTIVES/HYPOTHESIS: We report a posterior laryngeal rating system and measures of voice disability in pediatric patients undergoing phonosurgery for vocal fold paralysis. Posterior glottic deficiency may account for persistent voice disability. STUDY DESIGN: Retrospective Study. METHODS: Retrospective analyses of 66 subjects with primary unilateral vocal fold paralysis were reviewed for the status of posterior glottis and voice disability (Pediatric Voice Handicap Index [pVHI]). Gestation age (GA), weight, and medical/surgical history were reviewed. The width, length, and depth of the larynx were analyzed to create a reproducible rating scale. RESULTS: Mean GA was 29 weeks, with an intubation history for all subjects, with 90% having a left vocal fold immobility. Cardiac surgery was performed in 92% of subjects. A progressive rating (type 0-3) Benjamin Defect Severity Scale (BDSS) was developed to rate the absence or presence of a posterior abnormality. BDSS-2 and BDSS-3 subjects were more likely to have low birth weight. Extremely preterm GA was more likely to be associated with BDSS-1 (mild) or BDSS-2. History of multiple and prolonged intubations were seen more frequently in BDSS-2 or BDSS-3. Post-op pVHI reduced an average of 15 points for BDSS-0 to BDSS-2, but only 3 points for BDSS-3. Post-op pVHI matched normal values for preintervention dysphonic children. CONCLUSIONS: The presence of a persistent breathy voice after intervention for unilateral vocal fold immobility is potentially associated with posterior glottic defects. Low birth weight with multiple/prolonged intubation is more likely to be present with higher-grade BDs, whereas low GA is more likely to be associated with BDSS-1 to BDSS-2. LEVEL OF EVIDENCE: 4 Laryngoscope, 131:2550-2557, 2021.
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