Sleep-disordered breathing in middle-aged adults who underwent pharyngeal flap surgery for velopharyngeal insufficiency treatment: polysomnographic analysis

Author(s)

Letícia Dominguez Campos

• Document type: Master's Dissertation
• Press: Bauru.
• Institution: Universidade de São Paulo (USP). Faculdade de Odontologia de Bauru (FOB/SDB)
• Defense date: 2013-02-07

Examining board members

Inge Elly Kiemle Trindade; Geraldo Lorenzi Filho; Renata Paciello Yamashita

• Advisor: Inge Elly Kiemle Trindade

Abstract

Objectives: To investigate the occurrence and severity of obstructive sleep apnea (OSA) and related symptoms in middle-aged adults with repaired cleft palate and pharyngeal flap, as compared to individuals with repaired cleft palate without flap and to normative data. In addition, to verify the relationship between OSA severity and minimal pharyngeal cross-sectional airway area (PCSA). Methods: Prospective study in 42 nonsyndromic individuals with repaired cleft palate (22 with flap- F group, 20 without flap- NF group), aged 40-58 years. Prevalence of OSA was estimated according to apnea-hipopnea index (AHI), measured by nocturnal polysomnography (EMBLA-N7000 system). Symptoms were investigated by the Pittsburgh, Epworth, and Berlin questionnaires and by the Trindade Scale. PCSA was evaluated by modified anterior rhinomanometry in a subgroup of patients from the F group (n=14) and the NF group (n=10). Setting: Sleep Studies Unit-Laboratory of Physiology, Hospital for Rehabilitation of Craniofacial Anomalies, Brazil. Results: In the F group, the prevalence of OSA corresponded to 77% and when considering related symptoms (OSAHS), 64%. In the NF group, the percentages were lower (60% and 45%, respectively), but differences were not statistically significant. The prevalence of OSAHS in the F group was higher than in the general population. Questionnaire outcomes did not differ between groups. There was no correlation between AHI and PCSA. Conclusion: Middle-aged adults with cleft palate have clinically significant sleep-disordered breathing, possibly related to congenital anatomic or functional abnormalities of the upper airway, or to primary and secondary palatal surgeries, the flap being an aggravating obstructive factor. (AU)

• FAPESP's process: 10/14513-1 - Sleep respiratory disorders in middle aged subjects who underwent pharyngeal flap surgery for the treatment of velopharyngeal dysfunction
• Grantee: Letícia Dominguez Campos
• Support Opportunities: Scholarships in Brazil - Master