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. 2009 Nov 23;4(11):e7956. doi: 10.1371/journal.pone.0007956

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This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

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The numbers shown are standardized betas. Each of the arrows depicts a significant relationship (P<0.05). According to this analysis, higher hemolytic component was a direct predictor of increasing tricuspid regurgitation velocity and it also was associated with lower hemoglobin concentration and higher interleukin-6 concentration. Lower hemoglobin concentration was not a direct predictor of higher regurgitation velocity, but it was associated with higher VEGF concentration. Higher interleukin-6 concentration was a direct predictor of increasing tricuspid regurgitation velocity and it also was associated with higher VEGF and PDGF-BB concentrations. Higher PDGF-BB concentration was a direct predictor of increasing regurgitation velocity while higher VEGF concentration was a direct predictor of lower regurgitation velocity.