Pneumonia in the Intensive Care Unit (ICU) Setting
Study Details
Study Description
Brief Summary
The purpose of this observational study is to collect prospective data on the occurrence of bacterial and viral pneumonia in the ICU setting. Current classification systems for pneumonia promote over treatment with antibiotics as they do not specifically recognize the presence of culture-negative and viral pneumonia. The investigators will collect data to determine if a novel pneumonia classification system can be developed that more accurately links the etiology of pneumonia (antibiotic-susceptible bacterial pneumonia, antibiotic-resistant bacterial pneumonia, culture-negative pneumonia, viral pneumonia) to clinical outcomes. Additionally, the investigators will collect data on the practice of antimicrobial stewardship in the ICU setting to determine if further improvements in antibiotic practices can be accomplished in the future.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
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Detailed Description
The investigators will be prospectively collecting data on patients admitted to the 8300 and 8400 medical intensive care units at Barnes-Jewish Hospital requiring invasive mechanical ventilation for support in respiratory failure from pneumonia. Data will be collected on patients admitted from 1/2016-12/2016. The investigators will be collecting initial patient characteristic data as well as reviewing microbial specimen results (tracheal aspirate, bronchial alveolar lavage, viral multiplex, blood cultures) and antibiotic usage in real time. The investigators will identify any changes in antibiotic usage demonstrated with the advising of the ICU antibiotic stewardship team.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Pneumonia without ICU stewardship involvement Patients receiving >24 hours of invasive mechanical ventilation for pneumonia-related respiratory failure. Antibiotic choice and duration of therapy will not be influenced by the dedicated ICU stewardship team. |
|
| Pneumonia with ICU stewardship involvement Patients receiving >24 hours of invasive mechanical ventilation for pneumonia-related respiratory failure. Recommendations for antibiotic choice and duration of therapy will be provided by the dedicated ICU stewardship team (consisting of pulmonary fellows and ICU pharmacists) |
Behavioral: Antibiotic de-escalation by ICU stewardship team with decreased exposure to broad spectrum antibiotics and shorter duration of therapy
ICU stewardship team will provide recommendations to the ICU team regarding antibiotic de-escalation and duration of therapy in attempts of improving antibiotic stewardship practices without compromising patient outcomes.Recommendations will be based on patient showing clinical improvement combined with microbial culture data.
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Outcome Measures
Primary Outcome Measures
- In-hospital mortality [maxiumum of 12 months]
Secondary Outcome Measures
- Hospital length of stay [maximum of 12 months]
- ICU length of stay [maximum of 12 months]
- Days of invasive mechanical ventilation [maximum of 12 months]
- Total days of antibiotic, antiviral, and antifungal administration (collected both as a total days of therapy and by individual agent) [maximum of 12 months (including planned course of antibiotics to be continued upon discharge)]
The investigators will collect this information by reviewing the electronic medical record which delineates dates and times of each of the medications administered to a participant by nursing staff. The specific dates as well as total consecutive calendar days of each antibiotic administered will be charted in a database for further analysis. Antibiotics will be ranked for spectrum of activity based on microbial coverage as per the Barnes-Jewish Hospital antibiogram most recently published in 2014. De-escalation will be defined as a decrease in number and/or spectrum of antimicrobials administered. Antibiotics, antiviral, antifungals including those which fall into the following classes will be recorded: Penicillins, Floroquinalones, Macrolides, Vancomycin, Linezolid, Cephalosporins, Carbapenems, Monobactams, Aztreonam, Aminoglycocides, Tetracyclines, Metronidazole, non-specific antifungals, Azoles & derivatives, antivirals.
- Total days of septic shock as defined by the requirement of vasopressor therapy for maintaining a MAP > 60 [maximum of 12 months]
The electronic medical record will be utilized to determine the number of days for which a participant required vasopressor therapy for blood pressure support. Norepinephrine, Vasopressin, and Phenylephrine are considered vasopressors for this study.
- Occurrence of ventilator-associated events [maximum of 12 months]
tracheostomy placement, VAP, pneumothorax while on ventilator
- Disposition [maximum of 12 months]
Discharge documentation and social work notes will be reviewed to determine if the patient was discharged to home, an extended care facility/skilled nursing facility, hospice (at home or facility), long term acute care hospital, psychiatric ward, other hospital, or inpatient rehabilitation center. If the patient died in the hospital prior any discharge, this will be documented as the disposition.
- 90 day readmission rate [90 days from time of discharge from index hospitalization]
readmission all causes at 90 days post-discharge from index hospitalization
Eligibility Criteria
Criteria
Inclusion Criteria:
- age 18+, admitted for 8300 or 8400 medical ICU between 1/2016 and 12/2016 for respiratory failure from pneumonia, requirement of > 24 hours of invasive mechanical ventilatory support for pneumonia
Exclusion Criteria:
-
Immunocompromised as defined by HIV/AIDS, known immunodeficiency, chronic steroids > 20mg/day Prednisone equivalent, other home immunosuppressants, solid organ or bone marrow transplant patients, cystic fibrosis, bronchiectasis, active malignancy, receiving chemotherapy or radiation therapy within the past 3 months, hematologic malignancy
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Chronic ventilator dependence
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Barnes-Jewish Hospital | Saint Louis | Missouri | United States | 63110 |
Sponsors and Collaborators
- Washington University School of Medicine
Investigators
- Principal Investigator: Marin Kollef, MD, Washington University School of Medicine
Study Documents (Full-Text)
None provided.More Information
Publications
- Cabré M, Serra-Prat M, Force L, Almirall J, Palomera E, Clavé P. Oropharyngeal dysphagia is a risk factor for readmission for pneumonia in the very elderly persons: observational prospective study. J Gerontol A Biol Sci Med Sci. 2014 Mar;69(3):330-7. doi: 10.1093/gerona/glt099. Epub 2013 Jul 5.
- Charlson ME, Sax FL, MacKenzie CR, Fields SD, Braham RL, Douglas RG Jr. Assessing illness severity: does clinical judgment work? J Chronic Dis. 1986;39(6):439-52.
- Chastre J, Fagon JY. Ventilator-associated pneumonia. Am J Respir Crit Care Med. 2002 Apr 1;165(7):867-903. Review.
- Dharmarajan K, Hsieh AF, Lin Z, Bueno H, Ross JS, Horwitz LI, Barreto-Filho JA, Kim N, Bernheim SM, Suter LG, Drye EE, Krumholz HM. Diagnoses and timing of 30-day readmissions after hospitalization for heart failure, acute myocardial infarction, or pneumonia. JAMA. 2013 Jan 23;309(4):355-63. doi: 10.1001/jama.2012.216476.
- Iregui M, Ward S, Sherman G, Fraser VJ, Kollef MH. Clinical importance of delays in the initiation of appropriate antibiotic treatment for ventilator-associated pneumonia. Chest. 2002 Jul;122(1):262-8.
- Kollef MH, Chastre J, Clavel M, Restrepo MI, Michiels B, Kaniga K, Cirillo I, Kimko H, Redman R. A randomized trial of 7-day doripenem versus 10-day imipenem-cilastatin for ventilator-associated pneumonia. Crit Care. 2012 Nov 13;16(6):R218. doi: 10.1186/cc11862.
- Kollef MH, Shorr A, Tabak YP, Gupta V, Liu LZ, Johannes RS. Epidemiology and outcomes of health-care-associated pneumonia: results from a large US database of culture-positive pneumonia. Chest. 2005 Dec;128(6):3854-62. Erratum in: Chest. 2006 Mar;129(3):831.
- Magill SS, Klompas M, Balk R, Burns SM, Deutschman CS, Diekema D, Fridkin S, Greene L, Guh A, Gutterman D, Hammer B, Henderson D, Hess D, Hill NS, Horan T, Kollef M, Levy M, Septimus E, VanAntwerpen C, Wright D, Lipsett P. Developing a new, national approach to surveillance for ventilator-associated events*. Crit Care Med. 2013 Nov;41(11):2467-75. doi: 10.1097/CCM.0b013e3182a262db.
- Micek ST, Kollef KE, Reichley RM, Roubinian N, Kollef MH. Health care-associated pneumonia and community-acquired pneumonia: a single-center experience. Antimicrob Agents Chemother. 2007 Oct;51(10):3568-73. Epub 2007 Aug 6.
- Micek ST, Lang A, Fuller BM, Hampton NB, Kollef MH. Clinical implications for patients treated inappropriately for community-acquired pneumonia in the emergency department. BMC Infect Dis. 2014 Feb 5;14:61. doi: 10.1186/1471-2334-14-61.
- Shorr AF, Zilberberg MD, Reichley R, Kan J, Hoban A, Hoffman J, Micek ST, Kollef MH. Readmission following hospitalization for pneumonia: the impact of pneumonia type and its implication for hospitals. Clin Infect Dis. 2013 Aug;57(3):362-7. doi: 10.1093/cid/cit254. Epub 2013 May 15.
- Tang VL, Halm EA, Fine MJ, Johnson CS, Anzueto A, Mortensen EM. Predictors of rehospitalization after admission for pneumonia in the veterans affairs healthcare system. J Hosp Med. 2014 Jun;9(6):379-83. doi: 10.1002/jhm.2184. Epub 2014 Mar 19.
- Vidaur L, Planas K, Sierra R, Dimopoulos G, Ramirez A, Lisboa T, Rello J. Ventilator-associated pneumonia: impact of organisms on clinical resolution and medical resources utilization. Chest. 2008 Mar;133(3):625-32. doi: 10.1378/chest.07-2020. Epub 2008 Jan 15.
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