Ultrasound of the Diaphragm As Physiological Biomarker in Acute Exacerbations of Chronic Obstructive Pulmonary Disease
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Copd
- Sponsor
- Isala
- Enrollment
- 51
- Locations
- 1
- Primary Endpoint
- - To investigate the responsiveness of sonographic parameters to detect change in Borg score for dyspnea during hospitalisation for AECOPD without respiratory acidosis.
- Status
- Recruiting
- Last Updated
- last year
Overview
Brief Summary
The study will be conducted as a single-center, prospective cohort study. The primary objective of this study is to investigate the responsiveness of sonographic parameters of diaphragm to detect change in Borg score for dyspnea during hospitalisation for AECOPD without respiratory acidosis.
Detailed Description
To investigate the responsiveness of sonographic parameters to detect change in Borg score for dyspnea during hospitalisation for AECOPD without respiratory acidosis, we propose a prospective cohort design. After inclusion, participants will have assessment of diaphragm function (excursion, thickness, thickening fraction) using ultrasound within 48 hours of admission to the emergency ward, striving to assessment within 24 hours of admission. Additionally, dyspnea grade will be assessed using validated questionnaires. Further diagnostic work-up and treatment for AECOPD is performed at the discretion of the treating physician. Both ultrasound measurements and dyspnea grade questionnaires will be repeated when the participant is reported suitable for hospital discharge by the treating physician.
Investigators
Wytze de Boer
Coördinating Investigator
Isala
Eligibility Criteria
Inclusion Criteria
- •Hospitalisation primarily because of severe acute exacerbation of COPD
- •COPD, according to GOLD 2018 definition
- •Post-bronchodilator FEV1/FVC \< 0,70 and FEV1% \< 80%pred. within last 5 years
Exclusion Criteria
- •Respiratory acidosis (pH \< 7.35 ánd PaCO2 \> 6 kPA)
- •Need for (non-)invasive ventilation based on other criteria (e.g. severe hypoxia) upon presentation.
- •Established diagnosis of diaphragm diaphragm paralysis.
- •Inability for diaphragm imaging (e.g. mechanical ventilation, or unable to follow vocal instructions).
- •Those not able or unwilling to give written informed consent.
- •Pregnant women
Outcomes
Primary Outcomes
- To investigate the responsiveness of sonographic parameters to detect change in Borg score for dyspnea during hospitalisation for AECOPD without respiratory acidosis.
Time Frame: from admission till hospital discharge (expected median of 5 days based on experience)
Correlation between: * Change in Borg score for dyspnea; defined as score at discharge minus score at admission * Change in sonographic parameters; defined as score at discharge minus score at admission