Detecting Inspiratory Flow Limitation with Temporal Features of Nasal Airflow

Inspiratory flow limitation is a breathing pattern during sleep caused by upper airway (UA) narrowing that occurs during snoring and various degrees of obstructive sleep apnea (OSA). Clinical examination of flow limitation relies on identifying patterns of airflow contour, but this process is subjective and lacks physiological evidence of UA narrowing. Our objective is to derive temporal features of nasal airflow contour that characterize flow limitation. The features that correlate with UA narrowing can be used to develop machine learning classifiers to detect flow limitation with physiological support.
Source: Sleep Medicine - Category: Sleep Medicine Authors: Tags: Original Article Source Type: research