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Impact of Using Mini-Bronchoalveolar Lavage as a Diagnostic Test for Ventilator-Associated Pneumonia

This study has been completed.
Information provided by (Responsible Party):
University of California, San Francisco Identifier:
First received: April 27, 2006
Last updated: October 16, 2012
Last verified: October 2012
The proposed study will evaluate adult patients admitted to the medical or surgical intensive care units (ICUs) at San Francisco General Hospital (SFGH). On admission, patients will be randomized in a 1:1 manner to the mini-bronchoalveolar lavage (BAL) quantitative culture arm in the setting of suspected ventilator-associated pneumonia (VAP) versus the tracheal aspirate culture arm, which is the current test available at SFGH.

Condition Intervention
Ventilator-Associated Pneumonia Device: Bronchoalveolar lavage

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Impact of Using Mini-Bronchoalveolar Lavage as a Diagnostic Test for Ventilator-Associated Pneumonia

Resource links provided by NLM:

Further study details as provided by University of California, San Francisco:

Primary Outcome Measures:
  • Change in Antibiotic Usage or Exposure [ Time Frame: It is theorized that patients randomized to the tracheal aspirate will receive an average of 15 days of antibiotics while patients randomized under the minibal arm will receive an average of 10 days of antibiotics ]
    We expect that 100-110 adult patients will have clinically suspected VAP over a 2-year period. We assume that 50 patients with suspected VAP will be randomized to mini-BAl, and 50 patients will be randomized to tracheal aspirate. We expect that patients randomized to tracheal aspirate group will receive an average of approximately 14 total days of antibiotics over their ICU stay. This study will have >80% power to detect a difference of 4 days of antibiotics (i.e. average of 10 days in mini-BAL group) with a 7-day standard deviation in both groups (alpha error level 5%).

  • Antibiotics Exposure Days [ Time Frame: 15 days ]
    We hypothesize that Mini-BAL quantitative culture in place of tracheal aspirate culture will reduce the total days of antibiotics exposure

Enrollment: 37
Study Start Date: May 2006
Study Completion Date: December 2008
Primary Completion Date: December 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Minibal Arm
Using Mini bronchoalveolar lavage
Device: Bronchoalveolar lavage
Using catheter to obtain respiratory sample
Other Name: MiniBal
No Intervention: Tracheal Aspirates
standard of care for ICU.

Detailed Description:
Patients will be randomized to either Mini-Bal or tracheal aspirate then samples will be taken to the lab for culture. Comparative analysis will then be performed based upon lab results.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • All adult patients (> age 18) admitted to 5E, 5R, and 4E intensive care units and are on the ventilator for greater than 48 hours and expected to remain on the ventilator for awhile
  • Study procedures would be performed only in patients clinically suspected of having VAP.

Exclusion Criteria:

  • Severe respiratory distress at the time of suspected VAP defined by:

    • FiO2 ≥ 0.7
    • PEEP ≥ 12
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Please refer to this study by its identifier: NCT00319644

United States, California
San Francisco General Hospital
San Francisco, California, United States, 94110
Sponsors and Collaborators
University of California, San Francisco
Principal Investigator: Julin F Tang, M.D., M.S. University of California, San Francisco
  More Information

Responsible Party: University of California, San Francisco Identifier: NCT00319644     History of Changes
Other Study ID Numbers: 27831-01
Study First Received: April 27, 2006
Results First Received: March 24, 2011
Last Updated: October 16, 2012

Additional relevant MeSH terms:
Pneumonia, Ventilator-Associated
Lung Diseases
Respiratory Tract Diseases
Respiratory Tract Infections
Cross Infection
Ventilator-Induced Lung Injury
Lung Injury processed this record on September 21, 2017