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Acute Dyspnea After Use of Non-invasive Ventilation in COPD and Emphysema (Deventilation Syndrome)

This study is not yet open for participant recruitment.
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Verified October 2016 by Felix JF Herth, Heidelberg University
Information provided by (Responsible Party):
Felix JF Herth, Heidelberg University Identifier:
First received: October 20, 2016
Last updated: NA
Last verified: October 2016
History: No changes posted
Acute dyspnea after use of non-invasive ventilation (NIV) is a common phenomenon in patients with COPD and emphysema. This trial aims to document incidence and severity of augmented dyspnea in patients with long term NIV therapy. These findings may help in understanding the pathomechanisms that lead to post-NIV dyspnea and thus give way to potential therapy schemes.

Obstructive Chronic Bronchitis

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Acquisition and Evaluation of Augemented Dyspnea After Use of Non-invasive Ventilation in Patients With COPD and Empysema (Deventilation Syndrome)

Resource links provided by NLM:

Further study details as provided by Felix JF Herth, Heidelberg University:

Primary Outcome Measures:
  • Incidence and severity of acute dyspnea after use of non-invasive Ventilation in COPD and emphysema [ Time Frame: May 2018 ]

Estimated Enrollment: 70
Study Start Date: November 2016
Estimated Study Completion Date: May 2018
Estimated Primary Completion Date: October 2017 (Final data collection date for primary outcome measure)
Detailed Description:

Non-invasive ventilation (NIV) is a widespread therapy option for patients with hypercapnic failure due to COPD and emphysema. Augmented dyspnea after use of NIV is commonly found and leads not only to high patient discomfort, but can also be associated with acute respiratory failure. This monocentric obervation trial includes patients with COPD III°-IV° (GOLD) and emphysema and an established long term NIV therapy. During their routine inpatient follow-up, we will extend the routine examinations, focussing on the vulnerable first hour after the nocturnal use of NIV. This includes monitoring of breath rate, heart rate, pulsoxymetry, trancutaneous CO2, blood pressure and capillary blood gas analysis. Sonographic measurement of diaphragm movement and thickness will be complemented. Subjective dyspnea will be documented by use of the BORG scale.

By collecting this data, we hope to understand the pathomechanisms causing augmented dyspnea after NIV and thus provide information for therapeutical concepts to prevent it.


Ages Eligible for Study:   18 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients with chronic hypercapnic failure due to COPD III to IV GOLD and emphysema on long term noninvasive ventilation

Inclusion Criteria:

  • Males and females with stabile COPD, last exacerbation over one month,
  • GOLD III to IV
  • Regular use of noninvasive ventilation, more than four hours per day for more than one year
  • Signed declaration of consent
  • Sufficient language capabilities, german

Exclusion Criteria:

  • Acute exacerbation in the past four weeks
  • Acute pulmonary embolus
  • Haemoptysis
  • Severe neurological disease
  • Severe cardiological disease
  • Haemodynamic instability
  • New hypoxia or worsening of hypercapnia more than twenty percent of usual rate
  • Acute pneumothorax
  • Other instable Situation, for example intraabdominal bleedings
  • Drug or alcohol dependency
  • Regular intake of morphium
  • Adiposity BMI over 35
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT02942134

Contact: Mavi D Schellenberg, 00496221-3968027
Contact: Felix FJ Herth, Prof. 00496221-3961201

Sponsors and Collaborators
Felix JF Herth
Principal Investigator: Felix FJ Herth, Prof. Medical Director Thoraxklinik Heidelberg
  More Information

Responsible Party: Felix JF Herth, Prof. Dr. med. Felix JF Herth, Heidelberg University Identifier: NCT02942134     History of Changes
Other Study ID Numbers: S-484/2016
Study First Received: October 20, 2016
Last Updated: October 20, 2016
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Additional relevant MeSH terms:
Bronchitis, Chronic
Respiration Disorders
Respiratory Tract Diseases
Signs and Symptoms, Respiratory
Signs and Symptoms
Bronchial Diseases
Lung Diseases, Obstructive
Lung Diseases
Respiratory Tract Infections
Pulmonary Disease, Chronic Obstructive processed this record on August 22, 2017