Expiratory Airflow Limitations on Lung Flute Effectiveness in Secretion Clearance: An Observational Crosssectional Pilot Study.
| Autor: | da Silva, Francisco Carlos Nunes, Stolfi, Angela, D'Agati, Michael |
|---|---|
| Předmět: |
PILOT projects
NONPARAMETRIC statistics RESEARCH evaluation SCIENTIFIC observation HUMAN research subjects AIRWAY (Anatomy) CROSS-sectional method RESPIRATORY measurements MANN Whitney U Test FLUIDS INFORMED consent (Medical law) MATHEMATICAL variables T-test (Statistics) COMMERCIAL product evaluation PULMONARY function tests DESCRIPTIVE statistics RESPIRATION STATISTICAL sampling SPIROMETRY RECEIVER operating characteristic curves |
| Zdroj: | Cardiopulmonary Physical Therapy Journal (Lippincott Williams & Wilkins); Apr2021, Vol. 32 Issue 2, p52-56, 5p |
| Abstrakt: | Purpose: The purpose of this observational study was to assess the validity of the Lung Flute (LF) manufacturer's criterion for effective use of the device. Methods: Peak expiratory flow (PEF) and the ability to activate the oscillatory mechanism in the LF were assessed and compared. The diagnostic accuracy of the manufacturer's PEF threshold value of $128.4 L/min was determined, and an optimized threshold was derived. Results: The LF manufacturer's PEF threshold value of $128.4 L/min had a sensitivity of 100%, a specificity of 55%, and overall diagnostic accuracy of 83%. Nine (45%) of the twenty subjects that were not capable of activating the oscillatory device had a PEF $128.4 L/min. The optimal threshold value, with a sensitivity and specificity of 100%, for our sample was 167.5 L/min. Conclusions: The manufacturer's PEF threshold value of $128.4 L/min demonstrated high sensitivity but low specificity for predicting a patient's ability to use the LF device effectively. The optimized threshold value derived from our study was markedly higher. Clinicians should be aware that the LF manufacturer's specifications for the minimum PEF required for effective use of the device may not be evidence-based or accurate and consider this when prescribing this oscillatory positive expiratory pressure device. [ABSTRACT FROM AUTHOR] |
| Databáze: | Complementary Index |
| Externí odkaz: |
|