COPD, Hypercapnic Respiratory Failure
Conditions
Keywords
COPD, NIV, Airtrapping, Ventimotion2
Brief summary
15 COPD patients will be surveyed in this prospective randomized crossover pilot study concerning non invasive ventilation. Patients will be treated over 2 nights in randomized order with Ventimotion2 (Weinmann) with and without Airtrap Control under Polysomnography (PSG) surveillance including transcutaneous pCO2 measurement. The sleep quality is judged by evaluating the PSG and pCO2 values over night. Target parameters are respiratory rate, sleep quality and influence of Airtrap Control on pCO2 values over night.
Interventions
non invasive ventilation, individually titrated for each patient, if necessary combined with oxygen, to improve hypercapnic respiratory failure.
Addional to the individally titrated BiPAP ventilation parameters the function AirTrap Control is added. AirTrap Control helps to prevent dynamic hyperinflation and makes it possible for VENTImotion 2 to automatically regulate to the best frequency and expiration time.
Sponsors
Study design
Eligibility
Inclusion criteria
* Stable respiratory situation * Clinically required NIV * Capable of giving consent
Exclusion criteria
* Invasive ventilation * Any other severe physical disease that requires immediate medical assistance * Acute hypercapnic decompensation with pH \<7.30 in routine BGA * Circumstances that doesn't allow mask ventilation (e.g. facial deformation) * Participation in a clinical trial within the last 4 weeks * Pregnancy or nursing period * Drug addiction
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| breathing frequency | 2 nights | breathing frequency measured with the flow signal of a polysomnography during non invasive ventilation over night |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| mean pCO2 level | 2 nights | mean pCO2 level over night measured with a transcutanous pCO2 monitor (TOSCA) |
Other
| Measure | Time frame | Description |
|---|---|---|
| Sleep efficiency | 2 nights | Sleep efficiency is defined by the relation of time in bed to total sleep time in the overnight polysomnography protocol |
Countries
Germany