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Published on: October 22, 2014
Erythrocyte mean corpuscular volume associated with severity of peripheral arterial disease: an angiographic
Meinhard Haltmayer1, Thomas Mueller, Christian Luft
1Department of Laboratory Medicine, Konventhospital Barmherzige Brueder Linz, Linz, Austria. meinhard.haltmayer@bblinz.at
Insights
Elevated mean corpuscular volume (MCV) is linked to more severe peripheral arterial disease (PAD). Higher MCV levels in patients with PAD correlate with greater atherosclerotic findings, suggesting MCV as a potential risk factor.
Area of Science:
- Vascular Medicine
- Cardiovascular Research
- Hematology
Background:
- Peripheral arterial disease (PAD) is a significant cause of morbidity.
- Erythrocyte mean corpuscular volume (MCV) has been suggested as a potential risk factor for PAD.
Purpose of the Study:
- To investigate the association between MCV and the severity of lower limb atherosclerosis in PAD patients.
- To determine if MCV predicts angiographically assessed PAD severity.
Main Methods:
- A study involving 100 male patients with symptomatic PAD.
- Angiographic scoring system used to quantify atherosclerotic findings based on vessel lumen reduction.
- Logistic regression analysis incorporating age, smoking, hypertension, MCV, homocysteine, total cholesterol, and triglycerides.
Main Results:
- MCV showed a significant positive correlation with the angiographic score (rs = 0.247, p = 0.013).
- Logistic regression identified MCV (OR = 2.02 per 5 fL increase) and age (OR = 2.41 per 10-year increase) as significant predictors of disease severity.
- The model correctly classified 71% of subjects.
Conclusions:
- MCV is associated with angiographically determined disease severity in patients with PAD.
- The findings support the hypothesis that MCV is a risk factor for PAD.
- The underlying mechanism linking MCV to PAD severity requires further investigation.
Abstract:
Elevated erythrocyte mean corpuscular volume (MCV) may be a risk factor for peripheral arterial disease (PAD). The aim of the present study was to evaluate whether MCV was associated with the severity of atherosclerotic findings in the lower limbs of PAD patients, as measured by an angiographic scoring system based on vessel lumen reduction. One hundred male patients with symptomatic PAD were studied. MCV was significantly correlated with the angiographic score (rs = 0.247, p = 0.013). PAD patients with an angiographic score in the lower third were compared to those with values in the upper third using a logistic regression model with age, smoking, hypertension, MCV, homocysteine, and total cholesterol and triglycerides as independent variables. This model revealed significant odds ratios (OR) for MCV (OR = 2.02 for an increment of 5 fl, 95% CI = 1.08-3.8) and for age (OR = 2.41 for an increment of 10 years, 95% CI = 1.21-4.81) and facilitated classification of 71% of all subjects correctly. In conclusion, MCV may be associated with angiographically determined disease severity in patients with PAD. This finding supports the hypothesis that MCV is a risk factor for PAD, although the mechanism by which MCV may contribute to the presence and severity of the disease is not yet determined.
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