Yu-Shu Huang1, Christian Guilleminault2, Li-Ang Lee3, Cheng-Hui Lin4, Fan-Ming Hwang5. 1. Department of Child Psychiatry and Sleep Center, Chang Gung Memorial Hospital and College of Medicine, Taoyuan, Taiwan ; Department of Clinical Psychology College of Medicine, FU JEN Catholic University, Taipei, Taiwan. 2. Stanford University Sleep Medicine Division, Stanford, CA ; Department of Clinical Psychology College of Medicine, FU JEN Catholic University, Taipei, Taiwan. 3. Department of Otolaryngology and Sleep Center, Chang Gung Memorial Hospital and College of Medicine, Taoyuan, Taiwan. 4. Department of Cranio-Facial Center and Sleep Center, Chang Gung Memorial Hospital and College of Medicine, Taoyuan, Taiwan. 5. Department of Education, National Chia-Yi University, Chiayi, Taiwan.
Abstract
OBJECTIVE: To evaluate the efficacy of adenotonsillectomy (AT) in the treatment of children with obstructive sleep apnea (OSA) in a 3-y prospective, longitudinal study with analysis of risk factors of recurrence of OSA. STUDY DESIGN: An investigation of children (6 to 12 y old) with OSA documented at entry and followed posttreatment at 6, 12, 24, and 36 mo with examination, questionnaires, and polysomnography. Multivariate generalized linear modeling and hierarchical linear models analysis were used to determine contributors to suboptimal long-term resolution of OSA, and Generalized Linear Models were used for analysis of risk factors of recurrence. RESULTS: Of the 135 children, 88 terminated the study at 36 months post-AT. These 88 children (boys = 72, mean age = 8.9 ± 2.7 yersus boys 8.9 ± 2.04 y, girls: 8.8 ± 2.07 y; body mass index [BMI] = 19.5 ± 4.6 kg/m(2)) had a preoperative mean apnea-hypopnea index (AHI0) of 13.54 ± 7.23 and a mean postoperative AHI at 6 mo (AHI6) of 3.47 ± 8.41 events/h (with AHI6 > 1 = 53.4% of 88 children). A progressive increase in AHI was noted with a mean AHI36 = 6.48 ± 5.57 events/h and AHI36 > 1 = 68% of the studied group. Change in AHI was associated with changes in the OSA-18 questionnaire. The residual pediatric OSA after AT was significantly associated with BMI, AHI, enuresis, and allergic rhinitis before surgery. From 6 to 36 mo after AT, recurrence of pediatric OSA was significantly associated with enuresis, age (for the 24- to 36-mo period), postsurgery AHI6 (severity), and the rate of change in BMI and body weight. CONCLUSIONS: Adenotonsillectomy leads to significant improvement in apnea-hypopnea index, though generally with incomplete resolution, but a worsening over time was observed in 68% of our cases.
OBJECTIVE: To evaluate the efficacy of adenotonsillectomy (AT) in the treatment of children with obstructive sleep apnea (OSA) in a 3-y prospective, longitudinal study with analysis of risk factors of recurrence of OSA. STUDY DESIGN: An investigation of children (6 to 12 y old) with OSA documented at entry and followed posttreatment at 6, 12, 24, and 36 mo with examination, questionnaires, and polysomnography. Multivariate generalized linear modeling and hierarchical linear models analysis were used to determine contributors to suboptimal long-term resolution of OSA, and Generalized Linear Models were used for analysis of risk factors of recurrence. RESULTS: Of the 135 children, 88 terminated the study at 36 months post-AT. These 88 children (boys = 72, mean age = 8.9 ± 2.7 yersus boys 8.9 ± 2.04 y, girls: 8.8 ± 2.07 y; body mass index [BMI] = 19.5 ± 4.6 kg/m(2)) had a preoperative mean apnea-hypopnea index (AHI0) of 13.54 ± 7.23 and a mean postoperative AHI at 6 mo (AHI6) of 3.47 ± 8.41 events/h (with AHI6 > 1 = 53.4% of 88 children). A progressive increase in AHI was noted with a mean AHI36 = 6.48 ± 5.57 events/h and AHI36 > 1 = 68% of the studied group. Change in AHI was associated with changes in the OSA-18 questionnaire. The residual pediatric OSA after AT was significantly associated with BMI, AHI, enuresis, and allergic rhinitis before surgery. From 6 to 36 mo after AT, recurrence of pediatric OSA was significantly associated with enuresis, age (for the 24- to 36-mo period), postsurgery AHI6 (severity), and the rate of change in BMI and body weight. CONCLUSIONS: Adenotonsillectomy leads to significant improvement in apnea-hypopnea index, though generally with incomplete resolution, but a worsening over time was observed in 68% of our cases.
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