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Published on: February 16, 2011
Prognostic Value of Neutrophil to Lymphocyte Ratio for In-hospital Mortality in Elderly Patients with Acute
Tang-Meng Guo1,2, Bei Cheng1,2, Li Ke3,4
1Department of Geriatrics, Huazhong University of Science and Technology, Wuhan, 430022, China.
Insights
The neutrophil to lymphocyte ratio (NLR) and Global Registry of Acute Coronary Events (GRACE) score can predict in-hospital death in elderly patients with acute myocardial infarction (AMI). Elevated NLR is a potential predictor for mortality in this patient group.
Area of Science:
- Cardiology
- Inflammation Research
- Geriatric Medicine
Background:
- Coronary artery disease (CAD) is a complex condition where inflammation is a key factor.
- Predicting in-hospital mortality in elderly patients with acute myocardial infarction (AMI) is crucial for effective management.
- Inflammatory markers like the neutrophil-to-lymphocyte ratio (NLR) and risk scores such as the Global Registry of Acute Coronary Events (GRACE) score warrant investigation for prognostic value.
Purpose of the Study:
- To investigate the association between inflammatory markers (NLR, GRACE score) and in-hospital mortality in elderly AMI patients.
- To explore the prognostic value of NLR and GRACE score for predicting outcomes in this demographic.
Main Methods:
- Retrospective analysis of 1000 consecutive CAD patients, divided into elderly (≥60 years) and younger (<60 years) groups.
- Assessment of laboratory and clinical characteristics, including calculation of NLR and GRACE score.
- Comparison of NLR and GRACE scores between different patient subgroups (e.g., myocardial infarction types, risk strata) and survival outcomes.
Main Results:
- Elderly patients with myocardial infarction (NSTEMI/STEMI) showed significantly higher NLR compared to those with unstable or stable angina.
- NLR was significantly elevated in elderly AMI patients versus younger counterparts and higher in high-risk GRACE score groups.
- Both elevated NLR and GRACE score were significantly associated with in-hospital death; ROC analysis identified optimal cut-off values for predicting mortality.
Conclusions:
- An elevated neutrophil-to-lymphocyte ratio (NLR) is a potential predictor of in-hospital mortality in elderly patients experiencing acute myocardial infarction.
- The NLR and GRACE score demonstrate prognostic value for identifying elderly AMI patients at higher risk of in-hospital death.
Abstract:
Coronary artery disease (CAD) is a multifactorial disease in which inflammation plays a central role. This study aimed to investigate the association of inflammatory markers such as the neutrophil to lymphocyte ratio (NLR), the Global Registry of Acute Coronary Events (GRACE) score with in-hospital mortality of elderly patients with acute myocardial infarction (AMI) in an attempt to explore the prognostic value of these indices for elderly AMI patients. One thousand consecutive CAD patients were divided into two groups based on age 60. The laboratory and clinical characteristics were assessed retrospectively by reviewing the medical records. The NLR and GRACE score were calculated. In the elderly (≥60 years), patients with non-ST-elevation myocardial infarction (NSTEMI) and ST-elevation myocardial infarction (STEMI) had significantly higher NLR than did those with unstable angina (UA) and stable angina pectoris (SAP) (P<0.01). The NLR was considerably elevated in older AMI patients compared with their younger counterparts (<60 years) (P<0.05). In elderly AMI patients, the NLR was considerably higher in the high-risk group than in both the low-risk and medium-risk groups based on the GRACE score (P<0.05 and P<0.01, respectively), and the NLR was positively correlated with the GRACE score (r=0.322, P<0.001). Either the NLR level or the GRACE score was significantly higher in the death group than in the surviving group (P<0.05). By curve receiver operator characteristic curve (ROC) analysis, the optimal cut-off levels of 9.41 for NLR and 174 for GRACE score predicted in-hospital death [ROC area under the curve (AUC) 0.771 and 0.787, respectively, P<0.001]. It was concluded that an elevated NLR is a potential predictor of in-hospital mortality in elderly patients with AMI.
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