Efeitos da rinosseptoplastia sobre as dimensões internas nasais e ressonância da fala em indivíduos com fissura de lábio e palato unilateral reparada: análise por rinometria acústica e nasometria / Effects of rhinoseptoplasty on the internal nasal dimensions and speech resonance in individuals with repaired unilateral cleft lip and palate: assessment by acoustic rhinometry and nasometry

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

Objective: To analyze the effects of rhinoseptoplasty on the nasal cross-sectional areas and volumes, and the speech nasalance of individuals with repaired unilateral cleft lip and palate, assessed by acoustic rhinometry and nasometry. Design: Prospective analysis. Setting: Surgery Service and Laboratory of Physiology at the Hospital for Rehabilitation of Craniofacial Anomalies (HRAC-USP). Participants: Individuals with previously repaired unilateral cleft lip and palate (n=21, age=15-46 years) were evaluated before surgery (PRE) after 6-9 months (POST1) and after 12-18 months (POST2). Variables: Acoustic rhinometry was used to measure the cross-sectional areas of segments corresponding to the nasal valve (CSA1), anterior portion (CSA2) and posterior portion (CSA3) of the lower turbinate, and the nasal volumes at the regions of the nasal valve (V1) and nasal turbinates (V2) at both sides, before and after nasal decongestion with a topical vasoconstrictor. Nasometry was employed to evaluate the speech nasalance during the reading of a text predominantly containing nasal sounds and other containing only oral sounds. Results: At the cleft side, before nasal decongestion, there was a significant increase (p<0.05) in mean CSA1 and CSA2 values at POST1 and POST2 compared to PRE. After decongestion, increased values were also observed for CSA2 and V2 at POST2. No significant changes were observed at the non-cleft side. The mean nasalance values at PRE, POST1 and POST2 were not different from each other in both oral and nasal texts. Conclusion: The measurement of cross-sectional areas and volumes by acoustic rhinometry revealed that rhinoseptoplasty provided, in most cases analyzed, a significant increase in nasal patency, without concomitant changes in speech resonance, as estimated by nasalance assessment.

ASSUNTO(S)

cleft palate septo nasal cavidade nasal nasal septum nasal cavity nasometry rinometria acústica rhinoplasty cleft lip rinoplastia fissura labial nasometria fissura palatina acoustic rhinometry

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