Association between platelet to lymphocyte ratio and saphenous vein graft disease in patients with stable angina pectoris

Inflammatory Conditions in Acute Coronary Syndrome Patients Treated with Percutaneous Coronary Intervention of Saphenous Vein Graft

The study aimed to evaluate the inflammatory blood parameters in acute coronary syndrome (ACS) patients with a history of coronary artery bypass graft (CABG) and treated with percutaneous coronary intervention (PCI) of saphenous vein graft (SVG). A total of 347 patients who underwent urgent SVG PCI with the diagnosis of ACS were included in the study. After the application of exclusion criteria, 79 patients were allocated into two groups, namely, successful PCI ( n  = 59) and unsuccessful PCI ( n  = 20), and included in the statistical analysis. Neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) levels were significantly higher in patients with unsuccessful SVG PCI. In the logistic regression analysis, PLR, C-reactive protein, and diabetes mellitus emerged as independent factors associated with unsuccessful SVG PCI. The area under the curve for PLR was 0.70 (95% confidence interval: 0.55-0.85, p  = 0.006). The cut-off value of PLR (128.99) was associated with 70.0% sensitivity and 69.5% specificity. Elevated inflammatory status is associated with unsuccessful PCI of SVG in ACS patients. Increased PLR levels on admission is an independent predictor of this situation. This cheap and simple marker can help us to predict unsuccessful SVG PCI in ACS patients.

Relationship between platelet-to-lymphocyte ratio and the presence and severity of coronary artery ectasia

Objective:

The aim of this study was to investigate the relationship between platelet-to-lymphocyte ratio (PLR), an easily available inflammatory marker, and coronary artery ectasia (CAE).

Methods:

After applying the exclusion criteria, the retrospective study population consisted of 330 patients, including 110 patients with isolated CAE, 110 with obstructive coronary artery disease (CAD), and 110 with normal coronary artery angiograms (NCA). The severity of isolated CAE was determined according to the Markis classification. SPSS 22.0 statistical package program was used for data analysis.

Results:

PLR was significantly higher in patients with isolated CAE than in those with NCA and obstructive CAD [123 (113–156), 100 (86–138), and 110 (102–141), respectively]. Logistic regression analysis showed that PLR and C-reactive protein level were significantly correlated with the severity of isolated CAE.

Conclusion:

To the best of our knowledge, this study showed for the first time that PLR was significantly associated with CAE.