Efficacy of probiotics in the prevention of VAP in critically ill ICU patients: an updated systematic review and meta-analysis of randomized control trials

Abstract Introduction Ventilator-associated pneumonia (VAP) is reported as the second most common nosocomial infection among critically ill patients with the incidence ranging from 2 to 16 episodes per 1000 ventilator days. The use of probiotics has been shown to have a promising effect in many RCTs...

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Main Authors: Priyam Batra, Kapil Dev Soni, Purva Mathur
Format: Article
Language:English
Published: BMC 2020-10-01
Series:Journal of Intensive Care
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40560-020-00487-8
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author Priyam Batra
Kapil Dev Soni
Purva Mathur
author_facet Priyam Batra
Kapil Dev Soni
Purva Mathur
author_sort Priyam Batra
collection DOAJ
description Abstract Introduction Ventilator-associated pneumonia (VAP) is reported as the second most common nosocomial infection among critically ill patients with the incidence ranging from 2 to 16 episodes per 1000 ventilator days. The use of probiotics has been shown to have a promising effect in many RCTs. Our systematic review and meta-analysis were thus planned to determine the effect of probiotic use in critically ill ventilated adult patients on the incidence of VAP, length of hospital stay, length of ICU stay, duration of mechanical ventilation, the incidence of diarrhea, and the incidence of oropharyngeal colonization and in-hospital mortality. Methodology Systematic search of various databases (such as Embase, Cochrane, and Pubmed), published journals, clinical trials, and abstracts of the various major conferences were made to obtain the RCTs which compare probiotics with placebo for VAP prevention. The results were expressed as risk ratios or mean differences. Data synthesis was done using statistical software - Review Manager (RevMan) Version 5.4 (The Cochrane Collaboration, 2020). Results Nine studies met our inclusion criterion and were included in the meta-analysis. The incidence of VAP (risk ratio: 0.70, CI 0.56, 0.88; P = 0.002; I 2 = 37%), duration of mechanical ventilation (mean difference −3.75, CI −6.93, −0.58; P 0.02; I 2 = 96%), length of ICU stay (mean difference −4.20, CI −6.73, −1.66; P = 0.001; I 2 = 84%) and in-hospital mortality (OR 0.73, CI 0.54, 0.98; P = 0.04; I 2 = 0%) in the probiotic group was significantly lower than that in the control group. Probiotic administration was not associated with a statistically significant reduction in length of hospital stay (MD −1.94, CI −7.17, 3.28; P = 0.47; I 2 = 88%), incidence of oro-pharyngeal colonization (OR 0.59, CI 0.33, 1.04; P = 0.07; I 2 = 69%), and incidence of diarrhea (OR 0.59, CI 0.34, 1.03; P = 0.06; I 2 = 38%). Discussion Our meta-analysis shows that probiotic administration has a promising role in lowering the incidence of VAP, the duration of mechanical ventilation, length of ICU stay, and in-hospital mortality.
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spelling doaj.art-e624529171444fb5a7ce7ab3b992cae12022-12-22T00:07:45ZengBMCJournal of Intensive Care2052-04922020-10-018111410.1186/s40560-020-00487-8Efficacy of probiotics in the prevention of VAP in critically ill ICU patients: an updated systematic review and meta-analysis of randomized control trialsPriyam Batra0Kapil Dev Soni1Purva Mathur2Department of Microbiology, AIIMSDepartment of Critical and Intensive Care, JPNA Trauma Center, AIIMSDepartment of Laboratory Medicine, JPNA Trauma Center, AIIMSAbstract Introduction Ventilator-associated pneumonia (VAP) is reported as the second most common nosocomial infection among critically ill patients with the incidence ranging from 2 to 16 episodes per 1000 ventilator days. The use of probiotics has been shown to have a promising effect in many RCTs. Our systematic review and meta-analysis were thus planned to determine the effect of probiotic use in critically ill ventilated adult patients on the incidence of VAP, length of hospital stay, length of ICU stay, duration of mechanical ventilation, the incidence of diarrhea, and the incidence of oropharyngeal colonization and in-hospital mortality. Methodology Systematic search of various databases (such as Embase, Cochrane, and Pubmed), published journals, clinical trials, and abstracts of the various major conferences were made to obtain the RCTs which compare probiotics with placebo for VAP prevention. The results were expressed as risk ratios or mean differences. Data synthesis was done using statistical software - Review Manager (RevMan) Version 5.4 (The Cochrane Collaboration, 2020). Results Nine studies met our inclusion criterion and were included in the meta-analysis. The incidence of VAP (risk ratio: 0.70, CI 0.56, 0.88; P = 0.002; I 2 = 37%), duration of mechanical ventilation (mean difference −3.75, CI −6.93, −0.58; P 0.02; I 2 = 96%), length of ICU stay (mean difference −4.20, CI −6.73, −1.66; P = 0.001; I 2 = 84%) and in-hospital mortality (OR 0.73, CI 0.54, 0.98; P = 0.04; I 2 = 0%) in the probiotic group was significantly lower than that in the control group. Probiotic administration was not associated with a statistically significant reduction in length of hospital stay (MD −1.94, CI −7.17, 3.28; P = 0.47; I 2 = 88%), incidence of oro-pharyngeal colonization (OR 0.59, CI 0.33, 1.04; P = 0.07; I 2 = 69%), and incidence of diarrhea (OR 0.59, CI 0.34, 1.03; P = 0.06; I 2 = 38%). Discussion Our meta-analysis shows that probiotic administration has a promising role in lowering the incidence of VAP, the duration of mechanical ventilation, length of ICU stay, and in-hospital mortality.http://link.springer.com/article/10.1186/s40560-020-00487-8Ventilator-associated pneumoniaCritical careProbioticsPlaceboMeta-analysis
spellingShingle Priyam Batra
Kapil Dev Soni
Purva Mathur
Efficacy of probiotics in the prevention of VAP in critically ill ICU patients: an updated systematic review and meta-analysis of randomized control trials
Journal of Intensive Care
Ventilator-associated pneumonia
Critical care
Probiotics
Placebo
Meta-analysis
title Efficacy of probiotics in the prevention of VAP in critically ill ICU patients: an updated systematic review and meta-analysis of randomized control trials
title_full Efficacy of probiotics in the prevention of VAP in critically ill ICU patients: an updated systematic review and meta-analysis of randomized control trials
title_fullStr Efficacy of probiotics in the prevention of VAP in critically ill ICU patients: an updated systematic review and meta-analysis of randomized control trials
title_full_unstemmed Efficacy of probiotics in the prevention of VAP in critically ill ICU patients: an updated systematic review and meta-analysis of randomized control trials
title_short Efficacy of probiotics in the prevention of VAP in critically ill ICU patients: an updated systematic review and meta-analysis of randomized control trials
title_sort efficacy of probiotics in the prevention of vap in critically ill icu patients an updated systematic review and meta analysis of randomized control trials
topic Ventilator-associated pneumonia
Critical care
Probiotics
Placebo
Meta-analysis
url http://link.springer.com/article/10.1186/s40560-020-00487-8
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