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  • Title: [Long-term persistence of obstructive sleep apnoea-hypopnoea syndrome in children treated with adenotonsillectomy. Analysis of prognostic factors].
    Author: Esteller Moré E, Santos Acosta P, Segarra Isern F, Lopez Diu R, Matiño Soler E, Ademà Alcover JM, Estivill Sancho E.
    Journal: Acta Otorrinolaringol Esp; 2012; 63(2):85-92. PubMed ID: 22342641.
    Abstract:
    INTRODUCTION: Treatment of obstructive sleep apnoea-hypopnoea syndrome in children with adenotonsillectomy is effective but has a moderate rate of persistent disease. OBJECTIVES: To analyse the rate of persistence of sleep apnoea-hypopnoea syndrome in a group of adenotonsillectomy-treated paediatric patients and to assess the possible prognostic factors. METHODS: Prospective study of 80 patients aged between 2 and 13 years who had obstructive sleep apnoea-hypopnoea syndrome, treated with adenotonsillectomy. All patients had been followed up clinically and by polysomnography for 1 year after surgery. We analysed the epidemiological and clinical factors that could negatively affect the outcome of surgery. RESULTS: The median age was 5.25 ± 2.05 years and the mean apnoea-hypopnoea index (AHI) was 8.13 ± 6.06. One year after surgery, all clinical parameters improved significantly and the mean AHI was 2.50. Persistent disease (AHI≥3) was present in 21 of the patients (26.3%). The comparative analysis of clinical and epidemiological factors between the group of non-persistence and persistence did not obtain statistically-significant differences in age, sex, tonsillar size, Friedman degree or severity of preoperative disease. The only significant factor was that patients without persistence were more obese. CONCLUSION: The results of our study about the persistence of obstructive sleep apnoea-hypopnoea syndrome after adenotonsillectomy are significant enough to recommend follow-up with polysomnography, especially in high-risk groups. In the series presented here, we were not able to demonstrate these risk factors. Our results are probably conditioned by the characteristics of the population studied: Low age, low obesity rate and less severe levels of apnoea-hypopnoea index.
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