Active clinical trials for "Pneumonia, Ventilator-Associated"

Aims: to explore the value of TREM-1 (triggering receptor expressed on myeloid cells-1) ,PCT(Procalcitonin), as well as CPIS (clinical pulmonary infection score) in the diagnostic and prognostic assessment of VAP (ventilator associated pneumonia); and to make a comparison with WBC (white blood cells) and CRP (C-reactive protein) level as well as SOFA (Sequential Organ Failure Assessment) Score Methods: There were 92 subjects of sepsis, who were either receiving endotracheal intubation or had undergone tracheotomy and were exposed to mechanical ventilation. The subjects were divided into the VAP group (32) and the Non-VAP group (60), the criterion being the contraction of VAP 48 hours after ICU admission. Etiological culture was conducted in BALF (bronchoalveolar lavage fluid). And sTREM-1 density was determined by examining serum sTREM-1, PCT, WBC, CRP and EVC (exhaled ventilator condensate). Meanwhile, the CPIS and SOFA score were worked out. With a 28-day survival as the demarcation line, the VAP group was further divided into the survivors group, who stayed alive for 28 days or more , and the non-survivors group, who died within 28 days. The sTREM-1 and PCT level were denoted as meridians (range interquartile), while the WBC and CRP level as well as the CPIS and SOFA score, means±standard deviations (SD). Results: Averagely, the patients would contract clinically-confirmed VAP 6.9 days after admission, which was mainly traced to Gram-negative bacilli infection. On the very day of diagnosis, compared with the Non-VAP group, the VAP group showed a higher level of serum sTREM-1, PCT, WBC and CRP as well as CPIS and SOFA score（295.6pg/ml vs.143.5pg/ml, P<0.001；4.5ng/ml vs. 1.4ng/ml，P=0.008；16.7×10∧9/L vs.10.9×10∧9/L, P<0.001；11.5mg/dl vs. 7.7mg/dl，P=0.012； 6.0vs. 1.9, P<0.001；10.0vs. 7.5, P=0.017）, AUC (area under the receiver operating characteristic curve）turned out as follows :sTREM-1: 0.73（95% CI 0.61-0.85）;PCT : 0.70（95% CI 0.57-0.83）;WBC: 0.73（95% CI 0.60-0.85）.The CPIS score, which was proved by logistic regression analysis as the sole risky factor to VAP, amounted to 0.96（95% CI 0.91-1.00）. Combined prediction probability containing all the data was calculated in accordance on the relative regression equation. sTREM-1+WBC+CPIS score proved to be most reliable for diagnosis. AUC turned out as 0.98. With 0.277 as the cut-off point, sensitivity measured 0.97, specificity, 0.9 and YDI, 0.87. There were only 5 VAP subjects whose sTREM-1 density could be detected in EVC. The VAP patients were divided into a survivors group (n=15) and a non-survivors group (n=17) with a 28-day survival as the demarcation line. The non-survivors group demonstrated a higher PCT level and higher CPIS & SOFA score than the survivors. （3.0ng/ml vs. 15.3ng/ml，P=0.032；5.4vs. 6.6, P=0.03；8.1vs.11.7 P=0.049). AUC worked out PCT 0.752（95% CI 0.547-0.956）and CPIS 0.764（95% CI 0.575-0.953）. Calculations on the regression equation showed the PCT+CPIS score was most reliable for prognostic assessment. AUC turned out as 0.848. With 0.516 as the demarcation line, sensitivity measured 0.867, specificity, 0.818 and YDI, 0.685. conclusion: WBC + CPIS helps improve VAP diagnosis; PCT+CPIS may be used for VAP prognostic assessment. Taking two items into consideration will be of guiding value in VAP treatment as well as mortality rate reduction. The sTREM-1 level in EVC，however，may be devoid of value for VAP diagnosis.

hospital-acquired pneumonia are a common disease in intensive care unit. The prevention, the diagnosis and the treatment of hospital acquired pneumonia are a frequent challenge. Nevertheless it seems that there are great differences in standard of care between hospitals. The investigators hypothesized that medical education and implementation of evidence-base guidelines can reduce the duration of mechanical ventilation in patients presenting of hospital acquired pneumonia

To evaluate the sensitivity, specificity and diagnostic accuracy of bedside transthoracic ultrasound examination in the diagnosis and follow up of ventilator associated pneumonia.

Ventilator-associated pneumonia (VAP) is an infection of the pulmonary parenchyma in patients exposed to invasive mechanical ventilation for at least 48 h and is part of ICU-acquired pneumonia. VAP is one of the most frequent ICU-acquired infections. Reported incidences vary widely from 5 to 40%, depending on the setting and diagnostic criteria. The estimated attributable mortality of VAP is around 10%. Investigators will focus this study on the current understanding of the epidemiology and treatment of VAP caused by multi-drug resistant (MDR) organisms. The MDR organisms are significant threats to the prognosis of the ICU patient. They are challenging to treat because of a limited number of newer antibiotics available for treatment. Understanding their distribution and sensitivity pattern may provide clues on how to deal with this significant problem. The current study examines the distribution of MDR organisms in VAP and its incidence and outcome. Investigators will also study the sensitivity pattern of these MDR organisms and how it affects the patient outcome. All patients admitted to adult ICU will be scanned, positive respiratory cultures will be noted, and those with VAP will be studied in detail. Patient data will be collected using the hospital information system.

The place of analysis of organ dysfunction in relation to the diagnosis of nosocomial pneumonia in intensive care is not yet defined.

Pathogens of ventilator-associated pneumonia (VAP) come from colonizers of the trachea. The hypothesis of the investigators is that during the first days of intubation, independently of the use of antibiotics, there is a change in the oro-pharyngeal flora leading to the selection of one pathogen in the trachea, that will finally be the cause of VAP. The investigators designed a prospective study including 300 patients intubated for more than 3 days, with daily analysis of oro-pharyngeal juice and tracheal aspirate by culture and metagenomics, in order to determine if this microbiological surveillance permits: To predict a high risk to develop a VAP in the next 48h and even to predict its agent To better understand the development of VAP by studying the evolution of the "respiratory flora" in the context of intubation

Ventilator-associated pneumonia (VAP) is the most common nosocomial infection acquired by mechanically-ventilated patients in the intensive care unit (ICU). It has significant clinical and economic consequences, as it is associated with considerable morbidity, increased mortality, and excess health care costs. Appropriate antibiotic therapy for patients with VAP significantly improves outcomes, making rapid identification of patients with VAP an important clinical goal. This application is for support of a prospective, multi-centered study to evaluate the diagnostic value of lung ultrasound for VAP. The primary hypothesis is that the association of the Clinical Pulmonary Infection Score (CPIS) to specific lung ultrasound signs could allow for early and reliable diagnosis of bacterial VAP. Objective 1: To evaluate the sensitivity, specificity, and diagnostic accuracy of lung ultrasound alone and in association with the CPIS. Objective 2: To determine the frequency of specific lung ultrasound signs (subpleural consolidation, irregular B-lines) in VAP. Objective 3: To promote development of a diagnostic pathway for VAP incorporating CPIS, lung ultrasound, and unprotected tracheal aspirate (UTA).

The purpose of this study is to better define the intensive care unit population at highest risk for developing Hospital-Acquired and Ventilator-Associated Bacterial Pneumonia (HABP/VABP).

This observational monocentric prospective study aims to evaluate the efficacy of new measures for ventilator associated pneumonia (VAP) management in the pediatric population in the pediatric intensive care unit (PICU) of Fondazione Policlinico Agostino Gemelli of 8 beds. The investigators will compare the incidence of VAP in the group of patients in which this protocol has been implemented to a retrospective control group of patients before the new protocol implementation. VAP bundle includes oral care hygiene measures (i.e chlorhexidine swab), to keep clean and dry ventilator circuits and head positioning at 45 degrees.

The primary objective of this study is to assess the incidence of VAP in patients with TBI and to identify risk factors for developing VAP in this specific patient population (types of co-injuries in patients with multiple trauma or characteristics on admission). The secondary objective is to assess the prevalence of pathogens responsible for early- and late-onset VAP in patients with TBI. The tertiary objective is to discuss the ability of preventive measures to reduce the incidence of VAP