Patient-Ventilator Dyssynchrony: How is the Effect of Management?

The recruitment status of this study is unknown because the information has not been verified recently.
Verified May 2008 by National Cheng-Kung University Hospital.
Recruitment status was  Recruiting
Information provided by:
National Cheng-Kung University Hospital Identifier:
First received: May 21, 2008
Last updated: May 22, 2008
Last verified: May 2008

Although patient-ventilator asynchrony is a frequent phenomenon, its course following management is unknown. As the aid of a data recording system, we try to observe the consequence of patient-ventilator asynchrony following management. Our target is aimed at the patients with high asynchronization index ( > 10%) as this group of patients have been shown to have prolonged course in intensive care unit and are also prone to be tracheostomized

Respiratory Failure

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Patient-Ventilator Dyssynchrony: How is the Effect of Management?

Further study details as provided by National Cheng-Kung University Hospital:

Primary Outcome Measures:
  • Asynchrony index (AI). (Number of asynchrony events/total respiratory rate) [ Time Frame: 20 minutes after alternation of ventilator settings or any therapeutic means ] [ Designated as safety issue: No ]

Estimated Enrollment: 40
Study Start Date: March 2008
Estimated Study Completion Date: December 2008
Estimated Primary Completion Date: December 2008 (Final data collection date for primary outcome measure)


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Between March 2008 through December 2008, patients admitted to our respiratory intensive care unit for the management of acute respiratory failure were daily screened for the presence of patient-ventilator asynchrony.


Inclusion Criteria:

  • patients admitted to respiratory intensive care unit with acute respiratory failure and presence of patient-ventilator asynchrony(AI of more than 10%)
  • patient can trigger the ventilator

Exclusion Criteria:

  • High oxygen fraction: > 60%.
  • High PEEP need: > 12cmH2O.
  • Hemodynamic unstable: shock
  • Central nervous system problem.
  • Hyperacitve delirium
  • Without informed consent
  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: NCT00683072

Contact: Kuang Ming Liao, MD 886-6-235-3535 ext 2588
Contact: Chang Wen Chen, MD, MS 886-6-235-3535 ext 2577

National Cheng-Kung University Hospital Recruiting
Tainan, Taiwan, 704
Contact: Kuang Ming Liao, MD    886-6-235-3535 ext 2588   
Sponsors and Collaborators
National Cheng-Kung University Hospital
Study Director: Chang wen Chen, MD, MS National Cheng-Kung University Hospital
  More Information

No publications provided Identifier: NCT00683072     History of Changes
Other Study ID Numbers: NCKUH-9703023
Study First Received: May 21, 2008
Last Updated: May 22, 2008
Health Authority: Taiwan: Department of Health

Keywords provided by National Cheng-Kung University Hospital:
patient-ventilator asynchrony

Additional relevant MeSH terms:
Respiratory Insufficiency
Respiration Disorders
Respiratory Tract Diseases processed this record on October 09, 2015