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| Name | Class |
|---|---|
| University of Leipzig | OTHER |
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The aim of the study is to investigate the influence of respiratory support on diaphragmatic function (O2, NHF, NIV). The effects on the diaphragm, the respiratory values (FEV1, respiratory rate) and the subjective well-being of the patients during the therapy phases will be measured.
The primary objective of the clinical study is to investigate the differences in respiratory support with regard to the change in diaphragmatic kinetics and morphology (Tdi; TEx; Tdi, ee, Tdi, pi, ΔTdi, TFdi) as a function of respiratory rate.
For both ventilation modes, the influence on the respiratory situation, the respiratory muscle pump and adverse events will also be analysed. This is done using defined variables (FEV1, FEV1%VC, respiratory rate, frequency and type of adverse events (AEs), subjective satisfaction with the test product (Borg scale)).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Nasal high flow | Active Comparator |
| |
| NIV | Active Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Nasal high flow | Device | 3 sonographic measurements after use of 30 minutes |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Sonographic measurements of diaphragm thickness | Tdi ee in mm = Diaphragm thickness is determined by measuring the distance between the diaphragmatic pleura and the diaphragm/peritoneum border at maximum expiration | after 30 minutes use |
| Measure | Description | Time Frame |
|---|---|---|
| DEx | Diaphragm excursion during rest | 30 minutes |
| FEV1 | Forced vital capacity in 1 second as % predicted | 30 min |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Leipzig | Leipzig | 04103 | Germany |
All data upon request
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| ID | Term |
|---|---|
| D012131 | Respiratory Insufficiency |
| ID | Term |
|---|---|
| D012120 | Respiration Disorders |
| D012140 | Respiratory Tract Diseases |
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This study is a randomised comparison of two investigational medical devices in a prospective, monocentric, randomised, physiological, open-label, cross-over study. Patients are randomised into two groups (study arms) with a randomisation ratio of 1:1.
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| NIV |
| Device |
3 sonographic measurements after 30 minutes use |
|
| Tiffeneau - index | FEV1%FVC in % = definition of obstruction of the airways | 30 min |
| Respiratory rate | counts the respiratory cycles in 1 minute | 30 min |
| Tdi pi | Diaphragm thickness is determined by measuring the distance between the diaphragmatic pleura and the diaphragm/peritoneum border at maximum inspiration (Tdi, pi) in mm | 30 minutes |
| TF di | Thickening Fraction (calculated): TFdi Diaphragm thickening fraction (change in diaphragm thickness during inspiration as a percentage [calculation from the quotient of ΔTdi and Tdi,ee]) | 30 min |