Upper Airway Narrowing during Central Apnea in Obese Adolescents.

ABSTRACT:

Rationale

The use of real-time magnetic resonance imaging (MRI) for the evaluation during sleep-related respiratory events can lead to better understanding of airway dynamics.

Objectives

To investigate the dynamic anatomy of the upper airway during central apnea.

Methods

The study included obese adolescents who snore and were otherwise healthy. Subjects underwent an overnight baseline polysomnogram. Subjects slept during a 24-minute real-time upper airway MRI scan wearing a full face mask attached to a pneumotach. Sleep versus wakefulness during the MRI was inferred from the heart rate and respiratory patterns. Central apneas were scored using tracings of facemask airflow and abdominal bellows. The cross-sectional area of the upper airway before, during, and after eac

SUBMITTER: Kato RM 

PROVIDER: S-EPMC6322023 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature