ArticleLife (Basel, Switzerland)2025
The Neutrophil-to-Albumin Ratio (NAR) Reflects the Severity of the Post-CABG Inflammatory Response and Is Associated with a Pre-Existing Pro-Inflammatory Monocyte Profile.
Article in Life (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Cardiopulmonary bypass elevates the neutrophil-to-lymphocyte ratio and reduces lymphocyte counts: a comparison of on-pump versus off-pump CABG.Journal of cardiothoracic surgery · 2026Article
- Article
- Association between preoperative inflammatory biomarkers and postoperative pulmonary complications in stage I-II non-small cell lung cancer: a retrospective study.Frontiers in medicine · 2026Article
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22 authors.
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Abstract
backgroundThe systemic inflammatory response to coronary artery bypass grafting (CABG) is highly variable and a key driver of complications. We hypothesised that a pre-existing pro-inflammatory immune state, characterised by a skewed monocyte profile, 'primes' patients for an exaggerated response. This pilot prospective study aimed to test this hypothesis and to evaluate the Neutrophil-to-Albumin Ratio (NAR) as an integrated biomarker of this response, comparing it against the established Neutrophil-to-Lymphocyte Ratio (NLR).
methodsIn this pilot prospective, single-centre pilot study, we enrolled 34 patients with multivessel coronary artery disease (CAD) scheduled for off-pump CABG and 20 control subjects. Preoperatively, peripheral blood monocyte subsets were quantified by flow cytometry. Neutrophil, lymphocyte, and albumin levels were measured before and after surgery to calculate NAR and NLR. Multivariable linear regression was used to test for independent predictors of the inflammatory response.
resultsPreoperatively, CAD patients exhibited a reduced percentage of the classical monocyte subpopulation (
conclusionA patient's preoperative immune profile, specifically the degree of monocyte skew, is an independent predictor of the acute inflammatory response to CABG. This finding supports a 'priming' mechanism in high-risk patients. While NAR and NLR perform similarly as monitoring tools, the independent link between the underlying immunology and the postoperative outcome suggests that combining preoperative immunophenotyping with simple biomarker monitoring could offer a powerful new strategy for personalised risk stratification in cardiac surgery.
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