Month: December 2023

Thoracic and abdominal respiratory effort waveforms are used during PSG to differentiate sleep disordered breathing events as being obstructive or central in origin. Out-of-phase chest and abdomen excursions (paradoxical breathing patterns) occurring during a pause in airflow are indicative of obstructive events. In-phase chest and abdomen excursions is indicative of non-obstructive normal breathing. Some effort… Read more »