Abstract: Methods and system to diagnose central sleep apnea of a patient employ a relatively short test, combining few breathing parameters. The test is short in comparison to commonly used time-consuming and complex multi-parameter sleep studies. The patient uses a positive airway pressure device, and follows breathing cues. The occurrence of a central apnea during the delivery of breathing cues may support a diagnosis of central sleep apnea.

Abstract: A subject is prompted to consciously alter one or more breathing parameters of respiration. To prompt the subject to alter one or more breathing parameters, a pressurized flow of breathable gas is provided to the airway of the subject. One or more gas parameters of the gas in the pressurized flow of breathable gas are adjusted to provide breathing cues to the subject that encourage the subject to consciously adjust respiration such that the one or more breathing parameters are altered. Information is also conveyed to the subject through a user interface that dynamically provides information to the subject about the breathing cues.

Abstract: A wake-to-sleep transition for a subject is detected based on responsiveness to breathing cues provided to the subject. A pressurized flow of breathable gas to the airway of subject having one or more gas parameters that are adjusted to provide breathing cues to the subject. Based on a detected conformance of the respiration of the subject to the breathing cues, a determination is made as to whether the subject is awake or asleep.

Abstract: Respiratory assistance is provided to a subject in the form of a pressurized flow of breathable gas. The pressure of the gas is eased during expiration and increased during inspiration. Changes in pressure are triggered and/or cycled based on the monitoring of tidal volume. Volume thresholds that cause triggering and/or cycling are adjusted based on an observed or measured breath rate.

Abstract: A pressure support system (10) including a pressure generator that generates a pressurized flow of breathable gas to a subject and a processor (22) configured to execute computer program modules. The modules include a first mode module (32) controls the pressure generator according to a first mode of therapy wherein breathing cues are provided to the subject (12) according to a breathing regime. The breathing cues prompt the subject to consciously alter breathing parameters. The modules also include a second mode module (34) controls the pressure generator according to a second mode of therapy wherein the flow of breathable gas is provided to the subject (12) at a selected pressure or selectively variable pressures. The modules further include a transition module (36) that transitions between the first mode of therapy and a second mode of therapy wherein parameters of the pressurized flow of breathable gas is adjusted in response to a trigger event.

Abstract: Methods and system to diagnose central sleep apnea of a patient employ a relatively short test, combining few breathing parameters. The test is short in comparison to commonly used time-consuming and complex multi-parameter sleep studies. The patient uses a positive airway pressure device, and follows breathing cues. The occurrence of a central apnea during the delivery of breathing cues may support a diagnosis of central sleep apnea.

Abstract: Respiratory assistance is provided to a subject in the form of a pressurized flow of breathable gas. The pressure of the gas is eased during expiration and increased during inspiration. Changes in pressure are triggered and/or cycled based on the monitoring of tidal volume. Volume thresholds that cause triggering and/or cycling are adjusted based on an observed or measured breath rate.

Abstract: A wake-to-sleep transition for a subject is detected based on responsiveness to breathing cues provided to the subject. A pressurized flow of breathable gas to the airway of subject having one or more gas parameters that are adjusted to provide breathing cues to the subject. Based on a detected conformance of the respiration of the subject to the breathing cues, a determination is made as to whether the subject is awake or asleep.

Abstract: A subject is prompted to consciously alter one or more breathing parameters of respiration. To prompt the subject to alter one or more breathing parameters, a pressurized flow of breathable gas is provided to the airway of the subject. One or more gas parameters of the gas in the pressurized flow of breathable gas are adjusted to provide breathing cues to the subject that encourage the subject to consciously adjust respiration such that the one or more breathing parameters are altered. Information is also conveyed to the subject through a user interface that dynamically provides information to the subject about the breathing cues.