수면정신생리

수면정신생리 (16권2호 74-78)

Relationship between Pulmonary Function and Apnea-Hypopnea Index in Asthmatic Children: The Preliminary Study

천식 환아의 폐기능과 수면무 호흡의 연관성: 예비연구

Kang, Seung-Gul;Lee, Heon-Jeong;Lee, Seung-Hwan;Yoo, Young;Choung, Ji-Tae;Kim, Leen;

Department of Psychiatry, Korea University College of Medicine;Department of Psychiatry, Korea University College of Medicine;Department of Psychiatry, Inje University College of Medicine;Environmental Health Center, Korea University Anam Hospital;Environmental Health Center, Korea University Anam Hospital;Department of Psychiatry, Korea University College of Medicine;

Abstract

Objective: It has been reported that the sleep apnea syndrome in the asthmatic patients is prevalent, however, the systematic study in this field using polysomnography has rarely been performed. The aim of this study is to investigate the relationship between the apnea-hypopnea index (AHI) and the pulmonary function in asthmatic children. Methods: This study enrolled 19 male and 12 female asthmatic children aged 6-13 years (average $8.2{pm}1.7$ years old). Complete overnight polysomnography and pulmonary function test were performed for the participants. Results: Of the 31 asthmatic children, 21 (67.7%) met the diagnostic criteria of the pediatric sleep apnea and the average AHI was $1.7{pm}1.5/h$. The children with higher AHI showed poorer pulmonary function ($FEV_1$/FVC ratio: p=0.002, $FEV_1$%pred: p=0.047). Conclusion: These results suggest that the prevalence of the pediatric sleep apnea could be very high among the asthmatic children and the severity of the sleep apnea correlates with the pulmonary function. However, the case-control study to compare the AHI between the asthma and control groups is absolutely necessary because few normative data are available for the children.

Keywords

Pulmonary function test;Apnea-hypopnea index;Sleep apnea syndrome;Asthma;hildren;