Evaluating the Patient-Ventilator Synchrony During Mechanical Ventilation in Patients With Acute Lung Injury

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01541514
Recruitment Status : Completed
First Posted : March 1, 2012
Last Update Posted : December 3, 2014
Information provided by (Responsible Party):
University of Chicago

Brief Summary:
The overall purpose to the study is to prospectively study how often patients with and without acute lung injury (ALI) have patient-ventilator asynchrony demonstrated as stacked breaths. The investigators seek to describe the quantity of stacked breaths by continuously recording flow, volume, and pressure waveforms routinely displayed on the vent. The investigators also seek to describe how primary ICU teams manage asynchrony documenting interventions of sedation or vent manipulation and what modality is most successful.

Condition or disease
Mechanically Ventilated ICU Patients

Study Type : Observational
Actual Enrollment : 30 participants
Observational Model: Cohort
Time Perspective: Prospective
Study Start Date : July 2011
Actual Primary Completion Date : April 2012
Actual Study Completion Date : December 2013

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. double stacks [ Time Frame: number per minute over 5 minutes ]
    ventilator waveform recording

Secondary Outcome Measures :
  1. level of sedation [ Time Frame: baseline ]
    Richmond Agitation Sedation Score

  2. mode of ventilation [ Time Frame: 30min ]
    ventilator adjustment

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
adult ICU patients receiving mechanical ventilation

Inclusion Criteria:

age > 18 years intubated and mechanically ventilated diagnosed with acute lung injury (ALI) or requiring mechanical ventilation for reasons other than ALI

Exclusion Criteria:

neurological deficits (acute or chronic) that prevent effective diaphragm activity.

  • Neuromuscular disease affecting the diaphragm
  • Neuromuscular blockade

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01541514

United States, Illinois
University of Chicago Medical Center
Chicago, Illinois, United States, 60637
Sponsors and Collaborators
University of Chicago
Principal Investigator: Jesse Hall, MD University of Chicago

Responsible Party: University of Chicago Identifier: NCT01541514     History of Changes
Other Study ID Numbers: 11-0172
First Posted: March 1, 2012    Key Record Dates
Last Update Posted: December 3, 2014
Last Verified: December 2014