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Diagnostic Breath Analysis for Detection of Ventilator Acquired Pneumonia (VAP) (VAP-VOC)

L

Landon Pediatric Foundation

Status

Completed

Conditions

Bacterial Infections

Treatments

Device: Collection of exhaled breath sample

Study type

Observational

Funder types

Other

Identifiers

NCT03053258
Study 177 ZNose

Details and patient eligibility

About

Breath samples from patients with Ventilator Acquired Pneumonia (VAP) will be analyzed to identify Volatile Organic Compounds (VOC) that have been specifically associated with VAP in previous animal models.

Primary outcome measures will include the assessment of the zNose Diagnostic Breath Analysis System in the early detection of VOC's associated with VAP.

Full description

On clinical suspicion of VAP, breath samples will be collected from the expiratory limb of the patient's ventilator tubing circuit. A sterile Tedlar collection bag will be used to connect to the sample port and collect the breath sample. The expiratory limb sample port will be utilized to ensure maintenance of the integrity of the ventilator circuitry. The breath samples will be analyzed via the ZNose breath analysis system.

Immediately following collection of breath samples, bronchoalveolar lavage fluid (BALF) will be collected and subjected to bacteriology testing for confirmation of VAP-positive and VAP-negative patients.

Enrollment

10 patients

Sex

All

Ages

18+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Patients ≥ 48 hours of ventilation with suspected VAP infection. Suspicion of VAP infection based on clinical evaluation criteria:

    1. Three or more positive out of the following:

      1. Tympanic temperature > 38 °C or < 35.5 °C
      2. Blood leukocytosis (10,000/µl)
      3. More than ten leukocytes in Gram stain of tracheal aspirate (in high-flow field)
      4. Positive culture of tracheal aspirate
    2. New, persistent, or progressive infiltrate on chest radiograph

Exclusion criteria

Patients with pre-existing structural lung disease (COPD, asthma, lung cancer, etc.), thrombocytopenia (< 40,000/µL) and other coagulation abnormalities.

Trial design

10 participants in 1 patient group

Diagnostic Breath Analysis: VAP
Description:
Collection of exhaled breath samples
Treatment:
Device: Collection of exhaled breath sample

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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