What makes distinction between AVAPS and ASV?

[nazanian]

As far as I know both treat centrals, but what are indications for each? Thanks.

[JohnBFisher]

The AVAPS does NOT treat central sleep apnea. Instead it helps people with COPD (Chronic Obstructive Pulmonary Disease) breathe at night.

Here is a link (via CPAP.com) that describes an AVAPS unit from Respironics:

https://www.cpap.com/productpage/respir ... avaps.html

The AVAPS unit:

Average Volume Assured Pressure Support (AVAPS) is an advanced noninvasive ventilation feature that automatically adjusts pressure support while maintaining a target tidal volume.

And here is the link that describes an AVS unit from Respironics:

https://www.cpap.com/productpage/PR-Sys ... anced.html

The SV algorithm of the PR System One provides a smoother breathing pattern by tracking pressure changes breath by breath and ensuring proper breathing cycles. It establishes a target peak flow, which assists in normalizing breathing patterns.

[nazanian]

If AVAPS assures volume, wouldnt it be a solution for centrals, where there is no volume breathing?