Diagnosis and treatment of respiratory diseases

摘要

An apparatus method for detecting respiratory effort-related arousal in a patient's respiratory airflow signal. The method includes calculating a consistent measure of inspiratory flow restriction from the signal over recent breaths. The method also includes calculating a step change measurement in ventilation indicating a sudden large breath. The method also includes calculating a measure indicative of the degree of confidence in the occurrence of respiratory effort-related arousal from the measure of consistency of inspiratory flow restriction and the measure of step change in ventilation. [Selection] Figure 8