Study Points Out The Importance Of Preventing Congestion In Heart Failure

by Aruna on  June 6, 2009 at 9:52 AM Heart Disease News
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Study Points Out The Importance Of Preventing Congestion In Heart Failure
In the June issue of the Journal of Cardiac Failure (http://www.onlinejcf.com), reports of a study point that preventing vascular congestion is an important mediator in heart failure.

The authors previously demonstrated that venous endothelium is a key regulator of central blood volume, organ perfusion and hemostasis in heart failure (HF). The present study demonstrates that in venous endothelium, inflammatory/oxidative and hemostatic programs were significantly activated in HF dogs compared to normal dogs. In normal dogs, fluid loading significantly activated these same programs to levels that approached those seen in dogs with HF.

These findings suggest that biomechanical stress (i.e. vascular stretch) may be an important mediator of these endothelial responses, and highlight the importance of preventing congestion. Further investigation is needed to clarify whether the venous endothelial phenotype in unique individuals may ultimately allow us to track the vascular impact of subsequent environmental (i.e. biomechanical and biochemical) stressors, as well as the potential response to therapeutic interventions.

"This important study is consistent with a growing literature, indicating that congestion itself may mediate many of the physiological abnormalities in heart failure, such as vascular dysfunction, inflammation, renal dysfunction and hypercoagulability," commented Barry M. Massie, M.D., Editor-in-Chief of the Journal of Cardiac Failure.

Source: Eurekalert
ARU

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