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April 18, 2026International Journal of Critical Illness and Injury Science

Circulating metabolome as key biomarkers for ventilator-associated pneumonia: Case–Control study in a tertiary care hospital of North India

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Authors

AGAjay Kumar GautamRYRahul YadavBGBikram Kumar Gupta

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Overview

Case–control study identifies metabolites for diagnosing ventilator-associated pneumonia, implying new assessment methods.

Key Points

  • This research aims to identify circulating metabolites as potential biomarkers for diagnosing ventilator-associated pneumonia (VAP).
  • Conducted a case-control study with 44 patients on mechanical ventilation for over 48 hours.
  • Recruited 20 patients with VAP and 24 non-VAP patients.
  • Utilized NMR-based metabolomics to analyze serum samples.
  • Performed statistical analyses, including principal component analysis and univariate receiver operating characteristic curves.
  • Identified 27 distinct metabolites associated with VAP.
  • Confirmed phenylalanine, acetoacetate, and glutamate as significant biomarkers with fair accuracy.
  • Principal component analysis explained 18.9% of the variance between VAP and non-VAP groups.

Cite This Study

Gautam et al. (2026) studied this question.

synapsesocial.com/papers/69e3201440886becb653f278https://doi.org/10.4103/ijciis.ijciis_129_25
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Also Consider

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  1. 1C54-28 Microbiological, Immunological, Clinical and Biochemical Characteristics of the Development of Ventilator-associated Pneumonia: A Prospective, Translational, Observational Physionet Dataset From Columbia2026
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  4. 4Risk factors, predictive biomarkers, and microbial profile of ventilator-associated pneumonia in critically ill patients: a retrospective cohort Study2026
  5. 5Comparative Clinicomicrobiological Profile, Risk Factors, and Outcomes of Patients with and without Ventilator Associated Pneumonia: A Retrospective Observational Study from a Tertiary Care Hospital in Northern India2026