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Calcific aortic stenosis and its correlation with a novel inflammatory marker, the lymphocyte/monocyte ratio.
Portuguese Journal of Cardiology : An Official Journal of the Portuguese Society of Cardiology 2016 November
INTRODUCTION: Calcific aortic valve disease, a chronic progressive disorder, is the leading cause of valve replacement among elderly patients. The lymphocyte/monocyte ratio has been recently put forward as an inflammatory marker of relevance in several cancers as well as in cardiovascular disease. This study aims to assess the correlation between severity of calcific aortic stenosis and the lymphocyte/monocyte ratio.
METHODS: The study retrospectively included 178 patients with a diagnosis of calcific aortic stenosis and 139 age- and gender-matched controls. The patients were divided into two groups according to the severity of aortic stenosis: mild-to-moderate and severe.
RESULTS: An inverse correlation was discerned between the severity of the aortic stenosis process (mean gradient) and the lymphocyte/monocyte ratio (r=-0.232, p=0.002). The lymphocyte/monocyte ratio was observed to decrease as the severity of aortic stenosis increased (p<0.001) in the group with severe aortic stenosis compared with the mild-to-moderate aortic stenosis and control groups (p<0.001, p=0.005 respectively), and in the group with mild-to-moderate aortic stenosis compared with the control group (p=0.003). Multivariate regression analysis revealed that the lymphocyte/monocyte ratio was independently related to the severity of calcific aortic stenosis (p=0.003).
CONCLUSION: The present study demonstrated the existence of a statistically significant inverse relationship between severity of calcific aortic stenosis and the lymphocyte/monocyte ratio. The study also revealed that the lymphocyte/monocyte ratio was significantly related to the severity of the aortic valve stenosis process.
METHODS: The study retrospectively included 178 patients with a diagnosis of calcific aortic stenosis and 139 age- and gender-matched controls. The patients were divided into two groups according to the severity of aortic stenosis: mild-to-moderate and severe.
RESULTS: An inverse correlation was discerned between the severity of the aortic stenosis process (mean gradient) and the lymphocyte/monocyte ratio (r=-0.232, p=0.002). The lymphocyte/monocyte ratio was observed to decrease as the severity of aortic stenosis increased (p<0.001) in the group with severe aortic stenosis compared with the mild-to-moderate aortic stenosis and control groups (p<0.001, p=0.005 respectively), and in the group with mild-to-moderate aortic stenosis compared with the control group (p=0.003). Multivariate regression analysis revealed that the lymphocyte/monocyte ratio was independently related to the severity of calcific aortic stenosis (p=0.003).
CONCLUSION: The present study demonstrated the existence of a statistically significant inverse relationship between severity of calcific aortic stenosis and the lymphocyte/monocyte ratio. The study also revealed that the lymphocyte/monocyte ratio was significantly related to the severity of the aortic valve stenosis process.
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