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Journal ArticleDOI

A bedside index assessing the reliability of pulmonary artery occlusion pressure measurements during mechanical ventilation with positive end-expiratory pressure

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TLDR
The bedside determination of the ΔPpao/ΔPpa ratio should identify the cases in which Ppao measurements are not valid more reliably than lateral chest x-ray film, thus avoiding misleading interpretations of P pao during PEEP ventilation.
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This article is published in Journal of Critical Care.The article was published on 1992-03-01. It has received 87 citations till now. The article focuses on the topics: Positive end-expiratory pressure & Pulmonary wedge pressure.

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Citations
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Journal ArticleDOI

Central venous pressure measurements improve the accuracy of leg raising-induced change in pulse pressure to predict fluid responsiveness

TL;DR: A PLR-induced change in CVP ≥2 mmHg was required to allow clinical usefulness ofPLR-derived indices and ΔPLRPP performed well for predicting fluid responsiveness in deeply sedated patients.
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Clinical relevance of data from the pulmonary artery catheter.

TL;DR: Technological improvement transforms PAC in a real time integrated physiological device and allows one to observe the impact of therapeutic intervention and take a therapeutic decision to improve determinants of SvO2 with the help of all other PAC parameters.
Journal ArticleDOI

Hemodynamic monitoring in the intensive care unit.

TL;DR: The field of hemodynamic monitoring is rapidly evolving and will probably continue to evolve at this rapid pace over the next 5 to 10 years as new technologies, information management systems, and the understanding of the pathophysiology of critical illness progresses.
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The ability of pleth variability index to predict the hemodynamic effects of positive end-expiratory pressure in mechanically ventilated patients under general anesthesia.

TL;DR: PVI may be useful in automatically and noninvasively detecting the hemodynamic effects of PEEP when VT is >8 mL/kg in ventilated and sedated patients with acceptable sensitivity and specificity.
Journal ArticleDOI

Invasive measures of left ventricular preload.

TL;DR: The best prediction of the hemodynamic response to fluid therapy is afforded by functional evaluation of preload responsiveness rather than by static markers of pre load.
References
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Journal ArticleDOI

Distribution of blood flow in isolated lung; relation to vascular and alveolar pressures.

TL;DR: The left lung from a dog was removed, ventilated with negative pressure, and perfused with venous blood to establish pulmonary arterial, venous, and alveolar pressures that could be varied over a large range.
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Influence of positive end expiratory pressure on left ventricular performance

TL;DR: It is concluded that decreased cardiac output during PEEP is mediated by a leftward displacement of the interventricular septum, which restricts left ventricular filling.
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Pulmonary artery occlusion pressure: clinical physiology, measurement, and interpretation.

TL;DR: This review focuses on the clinical physiologic aspects of the wedge pressure determination, the technical principles of measurement, and the practical application of the information Pw provides.
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Estimating left ventricular filling pressure during positive end-expiratory pressure in humans

TL;DR: Methods of estimating LV filling pressure using Ppao measurements under conditions in which increases in Ppc were the primary determinants of differences in the two measurements were examined.
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Correlation of pulmonary wedge and left atrial pressures. A study in the patient receiving positive end expiratory pressure ventilation.

TL;DR: Measurements of net left atrial pressure and stroke work indicated that high levels of PEEP resulted in left ventricular failure, which may have been due to reduced coronary flow secondary to an elevated myocardial interstitial pressure with high level PEEP.
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