Study of Different Etiologic Diagnostic Methods in Ventilator Associated Pneumonia (VAP)

NCT ID: NCT02363023

Last Updated: 2018-05-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

TERMINATED

Total Enrollment

30 participants

Study Classification

OBSERVATIONAL

Study Start Date

2015-06-30

Study Completion Date

2016-06-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The study is designed to evaluate sensitivity, specificity and accuracy of non-bronchoscopic bronchoalveolar lavage and endotracheal aspirate in comparison with bronchoscopic bronchoalveolar lavage (gold standard), as methods for etiologic diagnosis of ventilator associated pneumonia and their impact in morbimortality.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Ventilator associated pneumonia is defined as one that occurs 48-72h after tracheal intubation, is classified into early and late and is responsible for a mortality of 24-50% to almost 70% in some studies.

The clinical suspicion of ventilator associated pneumonia is based on the finding of new or progressive pulmonary opacity associated with two or more variables such as: fever, leukocytosis or leukopenia, and purulent pulmonary secretions.

Some studies show that the etiologic diagnosis reduces spectrum of antimicrobials and bacterial resistance, reducing hospital stay and time of mechanical ventilation, as well as treatment costs. The collection of material for quantitative culture ensures greater specificity however there is no standard method.

The investigator's hypothesis is that collection of material to confirm the etiologic diagnosis of ventilator associated pneumonia, held by bronchoscopic bronchoalveolar lavage, define the etiology in a larger number of patients when compared to the endotracheal aspirate and non-bronchoscopic bronchoalveolar lavage.

The primary goal is evaluate and compare the sensitivity and specificity of noninvasive methods (endotracheal aspirate and non-bronchoscopic bronchoalveolar lavage) in comparison with invasive (bronchoscopic bronchoalveolar lavage) regarding the collection of material for etiologic diagnosis.

The secondary objectives are determine the prevalence of ventilator associated pneumonia and antimicrobial susceptibility patterns of bacteria isolated, helping to update empirical antibiotic therapy protocols.

This is a prospective comparative observational study on etiologic methods of diagnosis. All the patients, with clinical suspicion, will be submitted to collection of tracheal aspirate, bronchoscopic and non-bronchoscopic bronchoalveolar lavage. These procedures are already incorporated in the daily practice of our intensive cara unit and are routinely performed for investigation of patients with compatible framework of ventilator associated pneumonia, as availability of bronchoscopist.

Whereas an analysis of variance will be performed to compare the three interventions, with a minimum difference between the treatment means, a power of 0.95 and a significance level of 0.05, with an estimation error of 0.1, will be required a total sample of 72 patients.There will be only one group of 72 patients, in which will be held in all the three samples of the study.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Ventilator Associated Pneumonia

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

VAP suspects

Collect tracheal and pulmonary secretions. All patients (n: 72) will be submitted to endotracheal aspirate, bronchoscopic and non-bronchoscopic bronchoalveolar lavage.

Collect tracheal and pulmonary secretions

Intervention Type PROCEDURE

Collect tracheal and pulmonary secretions (endotracheal aspirate, bronchoscopic and non-bronchoscopic bronchoalveolar lavage)

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Collect tracheal and pulmonary secretions

Collect tracheal and pulmonary secretions (endotracheal aspirate, bronchoscopic and non-bronchoscopic bronchoalveolar lavage)

Intervention Type PROCEDURE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Older than 18 and clinical suspicion of VAP;

Exclusion Criteria

* Age less than 18 years;
* Introduction or modification of antibiotic therapy due to associated diagnosis in the first 3 days of the start of the protocol;
* No agreement with informed consent or for any other reason, expose the desire to leave the protocol at any time.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Federal University of Uberlandia

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Rodrigo Miquelanti Melo

Thoracic Surgeon

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Rodrigo Melo

Role: PRINCIPAL_INVESTIGATOR

Federal University of Uberlandia

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Rodrigo Miquelanti Melo

Uberlândia, Minas Gerais, Brazil

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Brazil

References

Explore related publications, articles, or registry entries linked to this study.

American Thoracic Society; Infectious Diseases Society of America. Guidelines for the management of adults with hospital-acquired, ventilator-associated, and healthcare-associated pneumonia. Am J Respir Crit Care Med. 2005 Feb 15;171(4):388-416. doi: 10.1164/rccm.200405-644ST. No abstract available.

Reference Type BACKGROUND
PMID: 15699079 (View on PubMed)

Kollef MH. What is ventilator-associated pneumonia and why is it important? Respir Care. 2005 Jun;50(6):714-21; discussion 721-4.

Reference Type BACKGROUND
PMID: 15913464 (View on PubMed)

Tablan OC, Anderson LJ, Besser R, Bridges C, Hajjeh R; CDC; Healthcare Infection Control Practices Advisory Committee. Guidelines for preventing health-care--associated pneumonia, 2003: recommendations of CDC and the Healthcare Infection Control Practices Advisory Committee. MMWR Recomm Rep. 2004 Mar 26;53(RR-3):1-36.

Reference Type BACKGROUND
PMID: 15048056 (View on PubMed)

Cook DJ, Walter SD, Cook RJ, Griffith LE, Guyatt GH, Leasa D, Jaeschke RZ, Brun-Buisson C. Incidence of and risk factors for ventilator-associated pneumonia in critically ill patients. Ann Intern Med. 1998 Sep 15;129(6):433-40. doi: 10.7326/0003-4819-129-6-199809150-00002.

Reference Type BACKGROUND
PMID: 9735080 (View on PubMed)

Safdar N, Dezfulian C, Collard HR, Saint S. Clinical and economic consequences of ventilator-associated pneumonia: a systematic review. Crit Care Med. 2005 Oct;33(10):2184-93. doi: 10.1097/01.ccm.0000181731.53912.d9.

Reference Type BACKGROUND
PMID: 16215368 (View on PubMed)

Rea-Neto A, Youssef NC, Tuche F, Brunkhorst F, Ranieri VM, Reinhart K, Sakr Y. Diagnosis of ventilator-associated pneumonia: a systematic review of the literature. Crit Care. 2008;12(2):R56. doi: 10.1186/cc6877. Epub 2008 Apr 21.

Reference Type BACKGROUND
PMID: 18426596 (View on PubMed)

Bonten MJ, Bergmans DC, Stobberingh EE, van der Geest S, De Leeuw PW, van Tiel FH, Gaillard CA. Implementation of bronchoscopic techniques in the diagnosis of ventilator-associated pneumonia to reduce antibiotic use. Am J Respir Crit Care Med. 1997 Dec;156(6):1820-4. doi: 10.1164/ajrccm.156.6.9610117.

Reference Type BACKGROUND
PMID: 9412561 (View on PubMed)

Fagon JY, Chastre J, Wolff M, Gervais C, Parer-Aubas S, Stephan F, Similowski T, Mercat A, Diehl JL, Sollet JP, Tenaillon A. Invasive and noninvasive strategies for management of suspected ventilator-associated pneumonia. A randomized trial. Ann Intern Med. 2000 Apr 18;132(8):621-30. doi: 10.7326/0003-4819-132-8-200004180-00004.

Reference Type BACKGROUND
PMID: 10766680 (View on PubMed)

Croce MA, Fabian TC, Schurr MJ, Boscarino R, Pritchard FE, Minard G, Patton JH Jr, Kudsk KA. Using bronchoalveolar lavage to distinguish nosocomial pneumonia from systemic inflammatory response syndrome: a prospective analysis. J Trauma. 1995 Dec;39(6):1134-9; discussion 1139-40. doi: 10.1097/00005373-199512000-00022.

Reference Type BACKGROUND
PMID: 7500408 (View on PubMed)

Leo A, Galindo-Galindo J, Folch E, Guerrero A, Bosques F, Mercado R, Arroliga AC. Comparison of bronchoscopic bronchoalveolar lavage vs blind lavage with a modified nasogastric tube in the etiologic diagnosis of ventilator-associated pneumonia. Med Intensiva. 2008 Apr;32(3):115-20. doi: 10.1016/s0210-5691(08)70921-5.

Reference Type BACKGROUND
PMID: 18381016 (View on PubMed)

Shorr AF, Sherner JH, Jackson WL, Kollef MH. Invasive approaches to the diagnosis of ventilator-associated pneumonia: a meta-analysis. Crit Care Med. 2005 Jan;33(1):46-53. doi: 10.1097/01.ccm.0000149852.32599.31.

Reference Type BACKGROUND
PMID: 15644647 (View on PubMed)

Canadian Critical Care Trials Group. A randomized trial of diagnostic techniques for ventilator-associated pneumonia. N Engl J Med. 2006 Dec 21;355(25):2619-30. doi: 10.1056/NEJMoa052904.

Reference Type BACKGROUND
PMID: 17182987 (View on PubMed)

Fujitani S, Yu VL. Diagnosis of ventilator-associated pneumonia: focus on nonbronchoscopic techniques (nonbronchoscopic bronchoalveolar lavage, including mini-BAL, blinded protected specimen brush, and blinded bronchial sampling) and endotracheal aspirates. J Intensive Care Med. 2006 Jan-Feb;21(1):17-21. doi: 10.1177/0885066605283094.

Reference Type BACKGROUND
PMID: 16698740 (View on PubMed)

Meduri GU, Chastre J. The standardization of bronchoscopic techniques for ventilator-associated pneumonia. Chest. 1992 Nov;102(5 Suppl 1):557S-564S. doi: 10.1378/chest.102.5_supplement_1.557s. No abstract available.

Reference Type BACKGROUND
PMID: 1424930 (View on PubMed)

Baselski VS, el-Torky M, Coalson JJ, Griffin JP. The standardization of criteria for processing and interpreting laboratory specimens in patients with suspected ventilator-associated pneumonia. Chest. 1992 Nov;102(5 Suppl 1):571S-579S. doi: 10.1378/chest.102.5_supplement_1.571s. No abstract available.

Reference Type BACKGROUND
PMID: 1424932 (View on PubMed)

Sanchez-Nieto JM, Torres A, Garcia-Cordoba F, El-Ebiary M, Carrillo A, Ruiz J, Nunez ML, Niederman M. Impact of invasive and noninvasive quantitative culture sampling on outcome of ventilator-associated pneumonia: a pilot study. Am J Respir Crit Care Med. 1998 Feb;157(2):371-6. doi: 10.1164/ajrccm.157.2.97-02039.

Reference Type BACKGROUND
PMID: 9476845 (View on PubMed)

Bossuyt PM, Reitsma JB, Bruns DE, Gatsonis CA, Glasziou PP, Irwig LM, Lijmer JG, Moher D, Rennie D, de Vet HC; Standards for Reporting of Diagnostic Accuracy. Towards complete and accurate reporting of studies of diagnostic accuracy: the STARD initiative. Clin Radiol. 2003 Aug;58(8):575-80. doi: 10.1016/s0009-9260(03)00258-7.

Reference Type BACKGROUND
PMID: 12887949 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

VAP protocol

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.