Clinical Report: Evaluating the Prognostic Nutritional Index and Neutrophil-to-Lymphocyte Ratio for Predicting Outcomes in CABG

Overview

This study evaluates the Prognostic Nutritional Index (PNI) and Neutrophil-to-Lymphocyte Ratio (NLR) in predicting outcomes for patients undergoing coronary artery bypass grafting (CABG).

Background

Coronary artery bypass grafting (CABG) is a prevalent surgical procedure with significant risks of adverse events, including mortality and complications. Preoperative risk stratification is crucial for optimizing patient outcomes. The PNI and NLR are emerging as potential tools for assessing nutritional and inflammatory status, which are linked to postoperative outcomes.

Data Highlights

In a cohort of patients undergoing CABG, the study found that:

• The median PNI was significantly lower in patients who experienced postoperative complications compared to those who did not.

• A higher NLR was associated with a greater incidence of adverse events, including prolonged hospital stay and increased mortality rates.

• Patients with malnutrition, as indicated by low PNI scores, had a higher risk of postoperative morbidity.

• Both PNI and NLR were independently predictive of outcomes, suggesting their utility in preoperative assessments.

Key Findings

• PNI is a composite measure derived from lymphocyte counts and albumin levels.

• NLR serves as an inflammatory biomarker and predictor of cardiovascular risk.

• Higher preoperative NLR is associated with increased risks of postoperative complications and mortality.

• Malnutrition is linked to poorer outcomes in patients with coronary artery disease.

• Both PNI and NLR may inform personalized risk stratification in cardiac surgery.

Clinical Implications

Healthcare professionals should consider incorporating PNI and NLR into preoperative assessments for patients undergoing CABG.

Conclusion

The study highlights the potential role of PNI and NLR as prognostic tools in CABG.

Related Resources & Content

1. MDSpire News, 2024 -- PNI Scores Linked to CABG Recovery and Survival

2. ASCO Publications, 2011 -- Evaluation of the neutrophil-lymphocyte ratio as a predictor of survival after liver transplantation for hepatocellular carcinoma.

3. ASCO Publications, 2026 -- Post-neoadjuvant Prognostic Nutritional Index as a predictor of pathological response and survival in locally advanced rectal cancer.

4. Frontiers in Oncology, 2026 -- Association between the prognostic nutritional index and prognosis in patients with non-small cell lung cancer undergoing curative lung resection: a systematic review and meta-analysis.

5. 2024 ESC Guidelines for the management of chronic coronary syndromes.

6. Association of the prognostic nutritional index and geriatric nutritional risk index with clinical outcomes in patients undergoing coronary artery bypass surgery: a systematic review and meta-analysis - PMC.

7. 2024 ESC Guidelines for the management of chronic coronary syndromes

8. Association of the prognostic nutritional index and geriatric nutritional risk index with clinical outcomes in patients undergoing coronary artery bypass surgery: a systematic review and meta-analysis - PMC