Reduction In Ventilator-associated Pneumonia Research Articles

Care Bundle Approach for Oral Health Maintenance and Reduction of Ventilator-Associated Pneumonia.

Caring for patients in the intensive care unit (ICU) creates competing priorities of interventions for nurses and other health care providers. Oral care might be prioritized lower; however, its neglect may lead to sequelae such as extended time in the ICU, nosocomial diseases most notably ventilator-associated pneumonia (VAP), or oral problems. Safe patient care depends on effective and efficient oral care. The aim of this study was to lower the incidence of VAP and maintain oral health through implementing an "oral care bundle" for mechanically ventilated (MV) patients. Using a quasi-experimental design, we divided 82 adult MV patients in the ICUs of a university-based hospital in Egypt into a control group (n=41) that received the standard of care and a bundle group (n=41) that received an "oral care bundle." The results of the study reported a significantly lower incidence of VAP in the intervention group (P =.015). It can be concluded that there is a significant relationship between receiving an oral care bundle and improved oral health and a reduction in the VAP rate among MV patients. This highlights the need to incorporate the oral care bundle in the daily nursing care for MV patients.

Impact of evidence-based bundles on ventilator-associated pneumonia prevention: A systematic review.

This review aimed at investigating the impact of bundle components on the prevention of ventilator-associated pneumonia (VAP) in adults and the elderly. The databases consulted were PubMed, EBSCO, and Scielo. The terms Bundle and Pneumonia were searched in combination. The original articles were selected in Spanish and English; published between January 2008 and December 2017. After eliminating the duplicate papers, an analysis of the titles and the abstracts was performed in order to select the assessed articles. A total of 18 articles were included in this review that were evaluated according to the following criteria: research reference, country of data collection, type of study, characteristics of the studied patients, analysis and intervention performed, bundle items investigated and their results, and research outcome. Four bundle items were presented in all the investigated papers. 61% of those works were considered from seven to eight bundle items. Daily evaluation of sedation interruption and daily assessment for verifying extubation condition, head-of-bed elevation at 30 degrees, cuff pressure monitoring, coagulation prophylaxis, and oral hygiene were the most reported bundle items. One study described the increased mortality of patients under mechanical ventilation when omitted the bundle items of oral hygiene and stress ulcer prophylaxis. Head-of-bed elevation at 30 degrees was the item reported in 100% of the studied papers. Existing research demonstrated that VAP reduction occurred when bundle items were performed for adults and the elderly. Four works showed the relevance of team education as a central approach to the event reduction related to the ventilator.

The Impact of Care Bundles on Ventilator-Associated Pneumonia (VAP) Prevention in Adult ICUs: A Systematic Review.

Ventilator-associated pneumonia (VAP) remains a common risk in mechanically ventilated patients. Different care bundles have been proposed to succeed VAP reduction. We aimed to identify the combined interventions that have been used to by ICUs worldwide from the implementation of "Institute for Healthcare Improvement Ventilator Bundle", i.e., from December 2004. A search was performed on the PubMed, Scopus and Science Direct databases. Finally, 38 studies met our inclusion criteria. The most common interventions monitored in the care bundles were sedation and weaning protocols, semi-recumbent positioning, oral and hand hygiene, peptic ulcer disease and deep venus thrombosis prophylaxis, subglottic suctioning, and cuff pressure control. Head-of-bed elevation was implemented by almost all studies, followed by oral hygiene, which was the second extensively used intervention. Four studies indicated a low VAP reduction, while 22 studies found an over 36% VAP decline, and in ten of them, the decrease was over 65%. Four of these studies indicated zero or nearly zero after intervention VAP rates. The studies with the highest VAP reduction adopted the "IHI Ventilator Bundle" combined with adequate endotracheal tube cuff pressure and subglottic suctioning. Multifaced techniques can lead to VAP reduction at a great extent. Multidisciplinary measures combined with long-lasting education programs and measurement of bundle's compliance should be the gold standard combination.

Major infections following pediatric cardiac surgery pre- and post-CLABSI bundle implementation.

Postoperative infection contributes to the worsening of congenital cardiac surgery (CCS) outcomes. Surgical site infection (SSI), bloodstream infection (BSI) and ventilator associated pneumonia (VAP) are common. An additional bundle of preventive measures against central-line associated bloodstream infection (CLABSI) bundle was implemented in April 2019. To compare the incidence of major infections after pediatric CCS before and after the implementation of the CLABSI bundle and to identify risk factors for major infections. We conducted a single-center, retrospective study to assess the incidence of major infections including bloodstream infection (BSI), surgical site infection (SSI), and ventilator-associated pneumonia (VAP) after pediatric CCS one year before and after implementation of the CLABSI bundle during April 2018-March 2020. The demographics and outcomes of the patients were explored, and risk factors for major infections were identified using multivariate analysis. A total of 548 children (53% male) underwent CCS with a median age of 1.9 years (range 0.01-17.5 years). The median Aristotle Basic Complexity score was 7.1 (range 3-14.5). The CLABSI bundle was applied in 262 patients. Overall mortality was 5.5%. 126 patients (23%) experienced major postoperative infections. During the year after the implementation of the CLABSI bundle, BSI was reduced from 8.4% to 3.1% (p=0.01), with a smaller reduction in VAP (21% to 17.6%; p=0.33). The incidence of SSI was unchanged (1.7% to 1.9%; p=0.77). The independent risk factors for major infections were age at surgery <6 months (p=0.04), postoperative ventilator usage >2 days (p<0.01), central line usage >4 days (p=0.04), and surgery during the pre-CLABSI bundle period (p=0.01). Following the implementation of the CLABSI prevention package in our pediatric CCS unit, the incidence of BSI was significantly reduced. The incidence of VAP tended to decrease, while the SSI was unchanged. Sustainability of the prevention package through nurse empowerment and compliance audits is an ongoing challenge.

Does the presence of oral health teams influence the incidence of ventilator-associated pneumonia and mortality of patients in intensive care units? Systematic review.

To verify whether oral health teams influence the oral health status, ventilator-associated pneumonia incidence and mortality rate of patients in Intensive Care Units (ICU). Bibliographic searches were performed in PubMed, Scopus, Web of Science, Lilacs, Embase, Livivo, Open Grey, Academic Google, and Cochrane databases. The assessment of the methodological quality and risk of bias of the included studies and a random-effects meta-analysis to summarize relative risk data for ventilator-associated pneumonia (VAP) and mortality were performed. An analysis of the certainty of the evidence was performed for the main outcomes analyzed. Records of 518 studies were analyzed by reading titles and abstracts. Five studies were included according to eligibility criteria. The meta-analysis showed that ICU patients undergoing dental care by an oral health team had a lower incidence of VAP (OR=0.33; 95% CI: 014-0.76) but did not lower mortality rates (OR=0.46 95% CI: 0.16-1.32). The certainty of the evidence was considered very low. Dental care provided by oral health teams in a hospital environment did not influence oral health status or mortality, although it contributed to a reduction in VAP of patients admitted to the ICU.

A Randomized Controlled Trial to Evaluate the Use of Probiotics in Prevention of Ventilator-Associated Pneumonia in Critically Ill ICU Patients

Abstract Context Ventilator-associated pneumonia (VAP) is one of the most common causes of morbidity and mortality in mechanically ventilated patients. Curing and preventing effects of probiotics in promoting the growth of Bifidobacterium in the digestive system and the central role of bacteria colonization in the pathogenesis of VAP are evident. Aims The purpose of this study was to evaluate the effects of administration of commercially available probiotics, that is, orodispersible probiotic sachets on VAP prevention and clinical outcomes in critically ill patients. Settings and Design Randomized control trials. Methods and Materials In this study, 120 mechanically ventilated patients were randomly divided into two groups (n = 60 per group). Group 1 was given orodispersible probiotic sachets by gavage, twice a day in addition to routine care, while group 2 received only routine care. Demographic and clinical data were analyzed and clinical outcomes to the primary component (prevalence of VAP) and secondary component (other clinical factors) were interpreted. Statistical Analysis Used In this study, data were analyzed via SAS statistical software version 9.4, using Student's t-test, chi-squared test, repeated measure analysis of variance, and Wilcoxon test. Results There was a significant reduction in VAP diagnosed patients, as well as Clostridium difficile-associated diarrhea and some complications of mechanical ventilation, in group 1 in comparison to group 2. The improvement in VAP was significantly greater for group 1 as compared with group 2. However, the mortality rate was similar between two groups. Conclusions This study demonstrated that a daily diet with orodispersible probiotic sachets can be used as add-on therapy with other medications in the prevention of VAP. As a result, the use of orodispersible probiotic sachets in the treatment plan of patients undergoing long-term intubation is recommended.

Association between cuffed tracheal tube use and reduced ventilator-associated pneumonia and conditions after elective cardiac surgery in infants and young children.

Ventilator-associated pneumonia (VAP) is a serious complication in children after cardiac surgery that may result from micro-aspiration. However, the current recommendation to use cuffed tracheal tubes (TTs) versus uncuffed TTs in children is still uncertain. Our main aim was to evaluate the incidence of VAP, ventilator-associated tracheobronchitis (VAT) and ventilator-associated conditions (VAC) in children up to five years old who underwent elective cardiac surgery. Single-center, prospective before-and-after study at a tertiary pediatric intensive care unit (PICU) in Italy. 242 patients (121 in each group) through the following periods: phase I (from Jan 2017 to 20th Feb 2018), during which children were intubated with uncuffed TTs; phase II (from 21th Feb 2018 to Feb 2019), during which children were intubated with cuffed TTs. Data were collected using an electronic dedicated database. Median age was five months. The use of cuffed tubes reduced the risk of VAC and VAP respectively 15.8 times (95% CI 3.4-73.1, P=0.0008) and 14.8 times (95% CI 3.1-71.5, P=0.002). No major related airway complications were observed in the cuffed TTs group. Average treatment effect, calculated after propensity score matching, confirmed the significant effect of cuffed TTs on VAC and VAP. Our study suggests a marked reduction of VAP and VAC associated with use of a cuffed versus uncuffed TT in infants and children ≤5 years of age after elective cardiac surgery. A randomized clinical trial is needed to confirm these results and define the impact of use of a cuffed versus uncuffed TT across other relevant ICU outcomes and non-cardiac PICU patients.

Maturation process and international accreditation of trauma system in a rapidly developing country.

As trauma systems mature, they are expected to improve patient care, reduce in-hospital complications and optimize outcomes. Qatar has a single trauma center, at the Hamad General Hospital, which serves as the hub for the trauma system that was verified as a level 1 trauma system by the Accreditation Canada International Distinction program in 2014. We hypothesized that this international accreditation was a major step, in the maturation process of the Qatar trauma system, that has positively impacted patient care, reduced complications and improved outcomes of trauma patients in such a rapidly developing country. A retrospective analysis of data was conducted for all trauma patients who were admitted between 2010 and 2018. Data were obtained from the level 1 trauma center registry at Hamad Medical Corporation. Patients were divided into Group 1- pre-accreditation (admitted from January 2010 to October 2014) and Group 2- post-accreditation (admitted from November 2014 to December 2018). Patients' characteristics and in-hospital outcomes were analyzed and compared. Data included patients' demographics; injury types, mechanism and injury severity scores, interventions, hospital stay, complications and mortality (pre-hospital and in-hospital). Time series analysis for mortality was performed using expert modeler. Data from a total of 15,864 patients was collected and analyzed. Group 2 patients had more severe injuries in comparison to Group 1 (p<0.05). However, Group 2, had a lower complication rate (ventilator associated pneumonia (VAP)) and a shorter mean hospital length of stay (p<0.05). The overall mortality was 8%. In Group 2; the pre-hospital mortality was higher (52% vs. 41%, p = 0.001), while in-hospital mortality was lower (48% vs. 59%) compared to Group 1 (p = 0.001). The international recognition and accreditation of the trauma center in 2014 was the key factor in the maturation of the trauma system that improved the in-hospital outcomes. Accreditation also brought other benefits including a reduction in VAP and hospital length of stay. However, further studies are required to explore the maturation process of all individual components of the trauma system including the prehospital setting.

The impact of an Educational Training Program on Nurses in Reduction of Ventilator Associated Pneumonia

Introduction: Ventilator Associated Pneumonia (VAP) is a critical hospital acquired infection causing high morbidity and mortality among critically ill patients in intensive care units (ICU). Nurses play a fundamental role in prevention of VAP by adherence to evidence-based guidelines. Lack of knowledge and inadequate infection control program application are barriers against reduction of VAP incidence. Aim of work: To evaluate the effectiveness of an educational and training program of ICU nurses on their knowledge and practices regarding evidenced based guidelines for VAP prevention, to detect its impact on the incidence rate of VAP and to raise the nurses’ awareness of their occupational health and safety by adherence to infection control guidelines. Materials and methods: A quasi- experimental pre-post design, interventional study was conducted on seventy nurses at five ICUs at the Manial hospital, Cairo University. Pre- intervention questionnaire and observational checklist were used to assess nurses’ knowledge and practice of care bundle for VAP prevention. An educational and training programs about occupational health, safety and infection control measures was applied, and then post- intervention assessment was followed. Analysis of VAP incidence rate was performed after reviewing the medical records. Results: There was statistically significant improvement of knowledge in the post-intervention assessment except for the use of chlorhexidine which showed non-statistically significant differences between pre and post intervention (˃ 0.05). Nurses’ practices regarding infection control measures and care bundle for VAP prevention showed statistically significant improvement in the post- intervention assessment (˂ 0.05) except for the use of clean unsterilized gloves and use of chlorhexidine swab which were the least practices adopted in 4.3% and 12.9% of nurses respectively. The mean VAP incidence rate was 24.86± 5.19 and was reduced to 5.47.96± in the post intervention phase (statistically significant). Conclusion: There was an overall improvement of nurses’ knowledge and practices of evidence based guidelines for VAP prevention associated with reduction of VAP incidence rate after the implementation of the program.

Economic and Epidemiological Impact of an Improvement Plan for the Decrease of Ventilator-Associated Pneumonia in a Tertiary Hospital in Mexico.

The objective of this work is to measure the economic and epidemiological impact of the implementation of a comprehensive quality improvement plan (CQIP) for the prevention and reduction of ventilator-associated pneumonia (VAP) in the adult intensive care unit in a Mexican hospital. A cross-sectional, ambispective, comparative, analytical, observational study was conducted with epidemiological data on cases of health care-associated infections and with information from the Hospital Epidemiological Surveillance Unit from August 2017 to July 2018. Before to the implementation of the CQIP, there were a total of 26 VAPs, with a rate of 32.2 per 1000 ventilator-days. After the implementation of CQIP, there were 14 VAPs, with a rate of 23.4 per 1000 ventilator-days, with a 46.2% decrease in incidence (P = 0.02). Before the installation of the interventions, the expense was $4,471,073.80, with an average cost per case of $171,964.38. The total cost per bed-day in the adult intensive care unit was $331,280.00, and for hospitalization, the cost was $192,038.00; for the use of antimicrobials, an expense of $749,689.20 was calculated, and for the use of mechanical ventilation, the cost was $2,974,275.60. The percentage of decrease in the cost of VAP after CQIP implementation was 46.5%. The implementation of CQIP based on the risk evaluation factors of VAP resulted in their decrease, which is reflected in a patient safety and quality care improvement.

Gut microbiota in surgical and critically ill patients.

Microbiota-defined as a collection of microbial organisms colonising different parts of the human body-is now recognised as a pivotal element of human health, and explains a large part of the variance in the phenotypic expression of many diseases. A reduction in microbiota diversity, and replacement of normal microbes with non-commensal, pathogenic or more virulent microbes in the gastrointestinal tract-also known as gut dysbiosis-is now considered to play a causal role in the pathogenesis of many acute and chronic diseases. Results from animal and human studies suggest that dysbiosis is linked to cardiovascular and metabolic disease through changes to microbiota-derived metabolites, including trimethylamine-N-oxide and short-chain fatty acids. Dysbiosis can occur within hours of surgery or the onset of critical illness, even without the administration of antibiotics. These pathological changes in microbiota may contribute to important clinical outcomes, including surgical infection, bowel anastomotic leaks, acute kidney injury, respiratory failure and brain injury. As a strategy to reduce dysbiosis, the use of probiotics (live bacterial cultures that confer health benefits) or synbiotics (probiotic in combination with food that encourages the growth of gut commensal bacteria) in surgical and critically ill patients has been increasingly reported to confer important clinical benefits, including a reduction in ventilator-associated pneumonia, bacteraemia and length of hospital stay, in small randomised controlled trials. However, the best strategy to modulate dysbiosis or counteract its potential harms remains uncertain and requires investigation by a well-designed, adequately powered, randomised controlled trial.

Controlling nosocomial infection in adult intensive treatment unit: A quality improvement project.

Nosocomial infection is a significant burden on healthcare facilities. Its multifactorial nature renders it challenging to control. However, quality healthcare necessitates a safer service that poses no harm to the patient. The aim of this project was to reduce the infection rates in the adult ITU to the benchmark levels. We conducted an internal audit as a result of the high infection rates in the adult ITU. The audit started with root cause analysis using the fishbone quality tool. FOCUS-PDCA quality tool was used to design the framework. We introduced a change in the staff uniform laundry and organized a campaign to improve hand hygiene compliance using a multimodality approach. Moreover, we conducted training on aseptic techniques in ventilation, urinary catheter, and central lines insertion. Finally, we changed the ventilator filter to a higher quality brand which meets the standard specifications. Infection rates were monitored before and after the proposed changes. There was a marked reduction in ventilator-associated pneumonia; however, it did not reach the benchmark rates. Catheter line-associated bloodstream infection declined from above to below the benchmark. Catheter-associated urinary tract infection rates were below the benchmark; however, they showed a noticeable reduction. Hand hygiene adherence showed an improvement from 80% to 84%. However, this was below the predetermined target level of 90%. In-hospital laundry of staff uniforms is safer to control nosocomial infections. A multimodal approach is necessary to improve hand hygiene adherence and adoption of aseptic techniques. Quality improvement is a continuous process.

1183. Effect of Chlorhexidine Bath on the Prevention of Ventilator-associated Pneumonia: A Meta-Analysis

BackgroundVentilator-associated pneumonia, defined as pneumonia occurring more than 48 hours after patients have been intubated and received mechanical ventilation, represents one of the most important nosocomial infections in critically ill patients. Chlorhexidine, an antiseptic solution, is a safe and effective product with broad antiseptic activity. This meta-analysis would like to investigate if Chlorhexidine bathing significantly reduced the incidence of Ventilator-associated pneumonia.MethodsWe searched PubMed and Cochrane Central Register database to check for all published studies related to the reduction of VAP with the application of chlorhexidine bath vs. control. Various study designs such as randomized controlled trials, Before-and-After study were included in this meta-analysis.ResultsThis meta-analysis analyzed eight studies. One hundred Thirty-nine (139) events developed in the chlorhexidine group over 33,030 patient-days which were significantly lower compared with 183 in the soap and water group over 35,213 patient-days. The overall incidence of Ventilator-associated Pneumonia (VAP) with the application of chlorhexidine was significantly reduced by 23% with a pooled Risk Ratio (RR) of 0.77 with 95% Confidence Interval (CI): 0.62–0.96; I2 = 52%. In the subgroup analysis, a more significant outcome was observed using Before-and-After study as the research design (pooled RR 0.63, 95% Confidence Interval (CI): 0.48–0.83, I2 = 31%). Daily chlorhexidine bath generated a more favorable outcome, compared with every other day application as evident on the pooled RR 0.78, 95% confidence interval (CI): 0.62–0.98, I2=59%ConclusionThis meta-analysis clearly favors the use of daily chlorhexidine bath in the prevention of ventilator-associated pneumonia. Disclosures All authors: No reported disclosures.

The nursing workload assessed through the Nursing Activities Score as a predictor for the occurrence of ventilator-associated pneumonia in an adult intensive care unit

Objective: Evaluate the relation of nursing workload, evaluated by the Nursing Activities Score (NAS), with the occurrence of Ventilator-associated Pneumonia (VAP) in an Intensive Care Unit (ICU) and the impact of VAP on hospitalization costs.Methods: Retrospective cohort study in Adult ICU of a high complexity Brazilian university hospital. The profile, outcomes, costs, and daily NAS from patients were collected. We also proposed some workload indicators based on NAS daily evaluation.Results: The study included 195 patients, 27.17% diagnosed with VAP. VAP was more prevalent in patients diagnosed with trauma on admission. The total costs of care were higher for VAP patients. In all multivariate models tested were predictive for VAP: the patient's intubation that occurs in days prior of the ICU admission day (higher risk if occurs in days prior the ICU admission day) and ventilation time prior ICU (higher risk if higher time). We found others predictors, but these were dependent on the model tested. Additional risk predictors were tracheostomy, propofol use, neuromuscular blocker use and the higher NAS from admission. The protective factors found were the percentage of adequacy of the assignment based in NAS that measure if the workload measured by the NAS was offered and the increment in NAS during the ventilation time.Conclusions: The offering of an adequate nursing work scale (adequate number of professionals for the care), as a function of the nursing workload measured by the NAS, could be effective in the reduction of VAP, hospital stay time and hospital costs.

Effectiveness of a Ventilator Care Bundle to Prevent Ventilator-Associated Pneumonia at the PICU: A Systematic Review and Meta-Analysis.

Ventilator-associated pneumonia is one of the most frequent hospital-acquired infections in mechanically ventilated children. We reviewed the literature on the effectiveness of ventilator care bundles in critically ill children. Embase, Medline OvidSP, Web-of-Science, Cochrane Library, and PubMed were searched from January 1990 until April 2017. Studies were included if they met the following criteria: 1) implementation of a ventilator care bundle in PICU setting; 2) quality improvement or multicomponent approach with the (primary) objective to lower the ventilator-associated pneumonia rate (expressed as ventilator-associated pneumonia episodes/1,000 ventilator days); and 3) made a comparison, for example, with or without ventilator care bundle, using an experimental randomized or nonrandomized study design, or an interrupted-times series. Exclusion criteria were (systematic) reviews, guidelines, descriptive studies, editorials, or poster publications. The following data were collected from each study: design, setting, patient characteristics (if available), number of ventilator-associated pneumonia per 1,000 ventilator days, ventilator-associated pneumonia definitions used, elements of the ventilator care bundle, and implementation strategy. Ambiguities about data extraction were resolved after discussion and consulting a third reviewer (M.N., E.I.) when necessary. We quantitatively pooled the results of individual studies, where suitable. The primary outcome, reduction in ventilator-associated pneumonia per 1,000 ventilator days, was expressed as an incidence risk ratio with a 95% CI. All data for meta-analysis were pooled by using a DerSimonian and Laird random effect model. Eleven articles were included. The median ventilator-associated pneumonia incidence decreased from 9.8 (interquartile range, 5.8-18.5) per 1,000 ventilator days to 4.6 (interquartile range, 1.2-8.6) per 1,000 ventilator days after implementation of a ventilator care bundle. The meta-analysis showed that the implementation of a ventilator care bundle resulted in significantly reduced ventilator-associated pneumonia incidences (incidence risk ratio = 0.45; 95% CI, 0.33-0.60; p < 0.0001; I = 55%). Implementation of a ventilator-associated pneumonia bundle has the potential to reduce the prevalence of ventilator-associated pneumonia in mechanically ventilated children.

Interprofessional Approach to the Sustained Reduction in Ventilator-Associated Pneumonia in a Pediatric Intensive Care Unit.

Ventilator-associated pneumonia (VAP) increases morbidity, mortality, and health care costs. To reduce the VAP rate in the pediatric/cardiac intensive care unit to fewer than 2 events per 1000 ventilator days within 2 years and to sustain a rate near 0 for the next 5 years. An evidence-based VAP prevention bundle was developed and implemented by an interprofessional team using the Six Sigma Define, Measure, Analyze, Improve, Control methodology. The mixed unit's 5-element VAP prevention bundle consisted of age-appropriate oral care, proper airway suction technique, maintenance of safe endotracheal-tube cuff pressures, aspiration precautions, and head-of-bed elevation. Knowledge and practice were reinforced through multidisciplinary education and one-on-one teaching. Practice compliance was monitored through regular, unannounced bedside audits linked to just-in-time teaching. Within 2 years, the annual VAP rate fell from 7.86 to 1.16 events per 1000 ventilator days; VAP bundle-element compliance ranged from 86% to 99%. There were no VAP events during a 10-quarter period in 2012 through 2014. Development, implementation, and revision of a VAP prevention strategy using the Define, Measure, Analyze, Improve, Control methodology was associated with marked, sustained reduction in VAP rates, notably during the unit's expansion from 16 to 24 beds, the opening of a pediatric cardiothoracic unit, and the hiring of more than 80 new nurses. After 7 years, the VAP rate continues to be low at 0.86 for 2016 and 0 through June 2017.

The preventable proportion of healthcare-associated infections 2005-2016: Systematic review and meta-analysis.

The preventable proportion of healthcare-associated infections (HAIs) may decrease over time as standards of care improve. We aimed to assess the proportion of HAIs prevented by multifaceted infection control interventions in different economic settings. In this systematic review and meta-analysis, we searched OVID Medline, EMBASE, CINAHL, PubMed, and The Cochrane Library for studies published between 2005 and 2016 assessing multifaceted interventions to reduce catheter-associated urinary tract infections (CAUTIs), central-line-associated bloodstream infections (CLABSIs), surgical site infections (SSIs), ventilator-associated pneumonia (VAP), and hospital-acquired pneumonia not associated with mechanical ventilation (HAP) in acute-care or long-term care settings. For studies reporting raw rates, we extracted data and calculated the natural log of the risk ratio and variance to obtain pooled risk ratio estimates. Of the 5,226 articles identified by our search, 144 studies were included in the final analysis. Pooled incidence rate ratios associated with multifaceted interventions were 0.543 (95% confidence interval [CI], 0.445-0.662) for CAUTI, 0.459 (95% CI, 0.381-0.554) for CLABSI, and 0.553 (95% CI, 0.465-0.657) for VAP. The pooled rate ratio was 0.461 (95% CI, 0.389-0.546) for interventions aiming at SSI reduction, and for VAP reduction initiatives, the pooled rate ratios were 0.611 (95% CI, 0.414-0.900) for before-and-after studies and 0.509 (95% CI, 0.277-0.937) for randomized controlled trials. Reductions in infection rates were independent of the economic status of the study country. The risk of bias was high in 143 of 144 studies (99.3%). Published evidence suggests a sustained potential for the significant reduction of HAI rates in the range of 35%-55% associated with multifaceted interventions irrespective of a country's income level.

The efficacy of a novel peristaltic feeding tube (PFT) in reducing reflux and aspiration of gastric contents in mechanically ventilated patients

Summary Gastro-esophageal reflux (GER) is common in ventilated patients and is a cause of ventilator associated pneumonia (VAP). The novel persistaltic feeding tube (PFT) uses simulated peristalsis to seal the esophagus to fluid moving in a retrograde manner, whilst allowing normal drainage of fluid and secretions moving in an ante-grade manner. This study describes the first trial of the PFT in ventilated patients. Methods There were 10 subjects in the treatment (PFT) group and 10 patients in the control group, who had all undergone elective cardiac surgery and were ventilated in the intensive care unit (ICU) afterwards. The PFT was placed on admission to the ICU. In the control group a standard nasogastric tube (NGT) was inserted. Specimens were collected by suctioning from the oropharynx and from above the tracheal tube balloon every hour and from the trachea twice per 8 h shift. Samples were analyzed by ELISA for Pepsin A, as a marker for secretions of gastric origin. Esophageal pressure monitoring (as a measure of pleural pressure), which is an intrinsic ability of the PFT device, was also noted throughout the study – for future integration in mechanical ventilation strategies. Results The two groups were comparable with regard to demographics and duration of ventilation. There was a larger number of specimens positive for Pepsin A in the control group in the oropharynx (p Conclusion The PFT reduced the amount of GER in ventilated patients. A larger study is required to determine whether this translates to a reduction in VAP. Australian New Zealand Clinical Trials Registry (ANZCTR) ACTRN12618000669291.

Long-term use of selective digestive decontamination in an ICU highly endemic for bacterial resistance

BackgroundWe examined whether long-term use of selective digestive tract decontamination (SDD) was effective in reducing intensive care unit (ICU)-acquired infection and antibiotic consumption while decreasing colistin-, tobramycin-, and most of the antibiotic-resistant colonization rates in a mixed ICU with a high endemic level of multidrug-resistant bacteria (MDRB).MethodsIn this cohort study, which was conducted in a 30-bed medical-surgical ICU, clinical outcomes before (1 year, non-SDD group) and after (4 years) implementation of SDD were compared. ICU patients who were expected to require tracheal intubation for > 48 hours were given a standard prophylactic SDD regimen. Oropharyngeal and rectal swabs were obtained on admission and once weekly thereafter.ResultsICU-acquired infections occurred in 110 patients in the non-SDD group and in 258 in the SDD group. A significant (P < 0.001) reduction of infections caused by MDRB (risk ratio [RR], 0.31; 95% CI, 0.23–0.41) was found after SDD and was associated with low rates of colistin- and tobramycin-resistant colonization. Colistin- and tobramycin-acquired increasing rate of ICU colonization resistance by 1000 days, adjusted by the rate of resistances at admission, was nonsignificant (0.82; 95% CI, 0.56 to 1.95; 1.13; 95% CI, 0.75 to 1.70, respectively). SDD was also a protective factor for ICU-acquired infections caused by MDR gram-negative pathogens and Acinetobacter baumannii in the multivariate analysis. In addition, a significant (P < 0.001) reduction of ventilator-associated pneumonia (VAP) (RR, 0.43; 95% CI, 0.32–0.59) and secondary bloodstream infection (BSI) (RR, 0.35; 95% CI, 0.24–0.52) was found. A decrease in antibiotic consumption was also observed.ConclusionsTreatment with SDD during 4 years was effective in an ICU setting with a high level of resistance, with clinically relevant reductions of infections caused by MDRB, and with low rates of colistin- and tobramycin-resistant colonization with nonsignificant increasing rate of ICU colonization resistance by 1000 days, adjusted by the rate of resistances at ICU admission. In addition, VAP and secondary BSI rates were significantly lower after SDD. Notably, a decrease in antimicrobial consumption was also observed.

Prevention of ventilator-associated pneumonia.

Ventilator-associated pneumonia (VAP) is an iatrogenic disease. Here we appraise recent advancements in the development and testing of strategies to prevent VAP. We also provide recommendations on the most promising interventions that should be applied. In the last year, preventive bundles have consistently let to a reduction of VAP. A few trials on endotracheal tubes (ETTs) with novel cuffs failed to translate positive bench findings into clinical settings. In addition, meta-analyses confirmed the primary role of subglottic secretion aspiration in VAP prevention. A relatively new ETT, with an innovative cuff design, has been tested in clinical trials confirming potential value. Meta-analyses confirmed reduction of VAP with the use of chlorhexidine for oropharyngeal decontamination. However, prophylactic inhaled or oral antibiotics are ineffective. Finally, there is growing interest in orally ingested probiotics to prevent VAP. The results of ongoing studies on probiotics are much-awaited. In conclusion, in the past year, new evidence elucidated limitations of new ETT cuffs in the prevention of VAP; whereas, subglottic secretion aspiration proved consistent benefits. Modulation of oropharyngeal colonization with chlorhexidine decreases risks of VAP and should be widely implemented. Finally, preventive measures with proven preventive value should be grouped into bundles.