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RECRUITINGOBSERVATIONAL

Diaphragmatic Function as a Biomarker

Diaphragmatic Function as a Biomarker in Patients With Respiratory Diseases

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

Dyspnea is among the most common symptoms in patients with respiratory diseases such as Asthma, chronic obstructive pulmonary disease (COPD), Fibrosis, and Pulmonary Hypertension. However, the pathophysiology and underlying mechanisms of dyspnea in patients with respiratory diseases are still poorly understood. Diaphragm dysfunction might be highly prevalent in patients with dyspnea and respiratory diseases. The association of diaphragm function and potential prognostic significance in patients with respiratory diseases has not yet been investigated.

Who May Be Eligible (Plain English)

Who May Qualify: - patient has one of the following lung diseases: COPD, bronchial asthma, pulmonary fibrosis, pulmonary hypertension - is 18 years or older - is mentally and physically able to understand the study and to follow instructions - are legally competent - signed declaration of consent Who Should NOT Join This Trial: - BMI \> 35 - current or treatments or diseases in the past which could influence the evaluation of the study - Expected lack of willingness to actively participate in study-related measures - alcohol or drug abuse - disc herniation/prolapse - epilepsy - wheelchair bound - in custody due to an official or court order - in a dependent relationship or employment relationship with investigating physician or one of their deputy - emergency inpatient hospital stay within 4 weeks before study-specific examinations Always talk to your doctor about whether this trial is right for you.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: * patient has one of the following lung diseases: COPD, bronchial asthma, pulmonary fibrosis, pulmonary hypertension * is 18 years or older * is mentally and physically able to understand the study and to follow instructions * are legally competent * signed declaration of consent Exclusion Criteria: * BMI \> 35 * current or treatments or diseases in the past which could influence the evaluation of the study * Expected lack of willingness to actively participate in study-related measures * alcohol or drug abuse * disc herniation/prolapse * epilepsy * wheelchair bound * in custody due to an official or court order * in a dependent relationship or employment relationship with investigating physician or one of their deputy * emergency inpatient hospital stay within 4 weeks before study-specific examinations

Treatments Being Tested

DIAGNOSTIC_TEST

Diaphragm Ultrasound

Ultrasound of the Diaphragm at the end of inspiration and expiration

DIAGNOSTIC_TEST

Intercostal Muscle Ultrasound

Ultrasound of the Intercostal Muscles at the end of inspiration and expiration

DIAGNOSTIC_TEST

Borg scale

Questionnaire for Perceived Exertion (Borg Rating of Perceived Exertion Scale)

DIAGNOSTIC_TEST

MRC Breathlessness Scale

The MRC Dyspnoea Scale allows the patients to indicate the extent to which their breathlessness affects their mobility.

DIAGNOSTIC_TEST

Respiratory Questionaire

Specialized respiratory questionnaire with different domains (Emotional Domain, Dyspnea Domain, Mastery Domain, Fatigue Domain)

DIAGNOSTIC_TEST

GINA classification of Asthma

Patients are classified according to the GINA classification of Asthma.

DIAGNOSTIC_TEST

Measurement of respiratory mouth pressure

Inspiratory and expiratory Measurement of respiratory mouth pressure

DIAGNOSTIC_TEST

SNIP

Measurement of Sniff Nasal Inspiratory Pressure

DIAGNOSTIC_TEST

6-minute walking distance

The maximum walking distance achieved in 6 minutes

DIAGNOSTIC_TEST

60 seconds sit-to-stand test

number of repetitions achieved in sitting down and standing up in 60 seconds

DIAGNOSTIC_TEST

Electromyography

electromyography of the muscles of respiration via superficial electrodes

DIAGNOSTIC_TEST

Lung Function

Measurement of lung function via body plethysmography

DIAGNOSTIC_TEST

CAT-Questionnaire

COPD Assessment Test (CAT)

DIAGNOSTIC_TEST

European Society of Cardiology (ESC)/ European Respiratory Society (ERS) risk group

Patients with pulmonary hypertension are classified according to the ESC/ERS risk group.

Locations (1)

RWTH Aachen University Hospital
Aachen, North Rhine-Westphalia, Germany