Articles: extravascular-lung-water.
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Preload parameters in postresuscitation phase are not sufficiently sensitive to guide fluid therapy in critically ill patients. We analyzed modifications in the fluid therapy and vasoactive drugs of critically ill patients that were produced by inclusion of extravascular lung water (EVLW) data in the treatment protocol and evaluated the short-term response. ⋯ Quantification of EVLW in patients who can be considered euvolemic induces important modifications in fluid and vasoactive therapy. These changes generally resulted in a lower volume loading and a positive outcome for the patient.
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Studies using transthoracic thermodilution have demonstrated increased extravascular lung water (EVLW) measurements attributed to progression of edema and flooding during sepsis and acute lung injury. The authors hypothesized that redistribution of pulmonary blood flow can cause increased apparent EVLW secondary to increased perfusion of thermally silent tissue, not increased lung edema. ⋯ The abrupt increase in EVLW and shunt fraction after endotoxin administration is consistent with inactivation of hypoxic pulmonary vasoconstriction and increased perfusion to already flooded lung regions that were previously thermally silent. Computed tomographic studies further demonstrate in vivo alterations in regional blood flow (but not lung water) and account for these alterations in shunt fraction and EVLW.
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Hepato Gastroenterol · Nov 2009
Randomized Controlled Trial Comparative StudyTherapeutic influence of 20 % albumin versus 6% hydroxyethylstarch on extravascular lung water in septic patients: a randomized controlled trial.
Recent studies demonstrated that extravascular lung water (EVLW) is a reliable and independent marker for outcome. The primary therapeutically goal in critically ill patients is to resuscitate and retain adequate organ perfusion by fluid administration, where is necessary to achieve adequate intravascular filling, but avoid initiation of pulmonary edema. ⋯ The present study results show can summarize that albumin reduces in a higher amount and earlier the extravascular lung water than HES, but this reduction was not associated with improvement of oxygenation functions, which was better in HES group.
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Am. J. Physiol. Lung Cell Mol. Physiol. · Oct 2009
ReviewMeasurement of extravascular lung water using the single indicator method in patients: research and potential clinical value.
Extravascular lung water includes all of the fluid within the lung but outside of the vasculature. Lung water increases as a result of increased hydrostatic vascular pressure or from an increase in lung endothelial and epithelial permeability or both. ⋯ Bedside measurement of extravascular lung water in patients is now possible using a single indicator thermodilution method. This review critically evaluates the experimental and clinical evidence supporting the potential value of measuring extravascular lung water in patients using the single indicator method.