[Equipment] resmed aircurve 10 vauto clinical settings defined

[rpotter3514]

Dear Sir or Madam
in the clinical menu on the aircurve 10 vauto there are settings that I need a better definition than found in clinical manuel

They are:

PS         Current Value     10
Ti Mx     Current Value      4.0s
TI Min    Current Value      1.0s
Trigger    Current Value      Medium  Please Define, manuel only shows graph
Cycle      Current Value      Medium  Please Define, Manuel only shows graph

Start EPAP   Current Value    6.0

under Accessories
   AB Filter  Current Value Yes

Options
  Essential   Current Value  Plus

Thankyou

[Sleeprider]

These are pretty unusual values and makes me wonder what is being treated, but lets start with those settings;
PS 10 is pressure support. In this case you get pressure support of 10 cm on top of EPAP 6.0 resulting in 16/10 (IPAP/EPAP) pressure. That is an extremely high pressure support that in most individuals will do most of the work of respiration, and would over-ventilate and cause central apnea. This suggests a significant pulmonary or airway resistance (COPD), or that you are being treated with the wrong machine for a central apnea problem. Since the Vauto does not have a backup rate, timed or programmed trigger, it is not normally used for central apnea. I hope you will consider telling us more about how you come by these settings.

Ti mx is the maximum time of inspiration. Your machine will always cycle to EPAP after 4-seconds or whan you spontaneously exhale. Normally this setting is set about 2.0 seconds.

Ti mn is the minimum time of inspiration. Once you spontaneously start to inhale, your machine will maintain IPAP for at least 1-second, but less than 4.

Your trigger and cycle sensitivity are both on the default medium sensitivity. Trigger is the sensitivity to inhale and cycle is for exhale. This is explained in detail in the clinical manual you can request from the forum. https://www.apneaboard.com/adjust-cpap-p...tup-manual We use higher sensitivity for trigger when a person may have a weak inspiratory signal or need more inspiration time, and lower sensitivity if we want to allow for more complete expiration. Cycle sensitivity can be lowered to hold inspiratory pressure support a bit longer, or increased to give more expiration time.

Start EPAP is the minimum EPAP pressure, or exhale pressure you receive. EPAP is used to keep the airway patent against obstruction, while IPAP (inhale pressure) is used to treat airway resistance, flow limitation, hypopnea, snores, etc.