[ASV] What are all of these "Timed Breath"s in SleepyHead?

[So Sincere]

What is a Timed Breath?" Here is a screen grab from SleepyHead for what seems to be a great night for me--AHI of 0.13--but I had 80 timed breaths, those black ticks mark along the top. Are these something I should work on minimizing? If so, how?



Here I've zoomed into a single timed-breath event. I don't see anything unusual.

[grayghost4]

That is what ST and ASV machines do ... this is quoted from cpap.com

BiPAP machines provide two distinct pressures. The higher pressure is needed for inhalation, while the lower pressure in need for exhalation. The lower pressure is intended to help you breathe out against the pressure of the machine. In addition to providing two pressures, BiPAP ST machines are designed to initiate a breath which ensures you are receiving the minimum breaths per minute. AVAPS machines gradually adjust to match your current breathing patterns to your target tidal volume of airflow.

[grayghost4]

here is a video that might help you :

https://www.youtube.com/watch?v=dCjUcjUA_SI

https://www.youtube.com/watch?v=A-SlO2dU8Og

[JDS74]

A timed breath is one on which the patient didn't initiate one on time. Then the machine ups the IPAP and decreases the EPAP pressure to act in ventilator mode trying to stimulate the patient to begin breathing on their own.

[ignorant1]

Here I've zoomed into a single timed-breath event. I don't see anything unusual.

If you look closely, right before the event, you'll see a longer time interval has passed between the inhalation peaks. That is when the machine kicked into gear and forced the issue.