Reliability of Respiratory Polygraphy for the Diagnosis of Sleep Apnea-Hypopnea Syndrome in Children

详细信息    查看全文

• 作者：Marí ; a Luz Alonso Á ; lvarez ; Joaquí ; n Terá ; n Santos ; José ; Aurelio Cordero Guevara ; Ana Isabel Navazo Egü ; ia ; Estrella Ordax Carbajo ; Juan Fern ; o Masa Jimé ; nez ; Rafael Pelayo
• 关键词：Sleep-disordered breathing ; Children ; Sleep ; Obstructive sleep apnea ; Apnea ; Sleep studies
• 刊名：Archivos de Bronconeumología (English Edition)
• 出版年：2008
• 出版时间：2008
• 年：2008
• 卷：44
• 期：6
• 页码：318-323
• 全文大小：74 K

文摘

Objective

Overnight polysomnography (PSG) is thegold standard diagnostic tool for sleep apnea-hypopneasyndrome (SAHS) in children. The aim of the present studywas to evaluate the usefulness of diagnostic respiratorypolygraphy in children with clinically suspected SAHSreferred to our sleep-disordered breathing clinic.

Patients and Methods

We studied 53 children referredwith clinical suspicion of SAHS; 29 (54.7 % ) were boys andthe mean (SD) age was 6.4 (2.9) years. After a medicalhistory was taken and a physical examination performed, patients underwent respiratory polygraphy (Edentec)simultaneously with overnight PSG in the sleep laboratory. The 2 diagnostic tools were compared using statisticalanalysis.

Results

SAHS was defined by an obstructive apnea-hypopnea index (OAHI) of 3 or more in overnight PSG anda respiratory disturbance index (RDI) of 3 or more inrespiratory polygraphy. The rate of diagnostic agreementwas 84.9 % . The difference between the mean OAHI andRDI values was not significant (0.7 [5.4]; P =.34). Theintraclass correlation coefficient between the OAHI andRDI was 89.4 (95 % confidence interval, 82.4-93.7; P <.001).

When receiver operating characteristic curves werecalculated for the OAHI cutoff points used for the diagnosisof SAHS (1, 3, and 5), the best RDI cutoff for all 3 OAHI valuesconsidered was found to be 4.6. When age strata wereconsidered, in children 6 years or older the best RDI cutofffor the 3 OAHI values was 2.1. In children younger than 6 years the best RDI cutoff was 3.35 for OAHI 1 and 5.85 forOAHI 3 and 5.

Conclusions

Respiratory polygraphy in the sleeplaboratory is a valid method for the diagnosis of SAHS inchildren.