Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Oct 2007
Comparative StudyThe level of cardiac output affects the relationship and agreement between pulmonary artery and transpulmonary aortic thermodilution measurements in an animal model.
The authors investigated the relationship between pulmonary artery and transpulmonary aortic thermodilution cardiac output measurements under conditions of increasing cardiac output (CO). ⋯ The authors concluded that the amount of CO differentially affects the relationship between aortic and PAC thermodilution CO. TL and recirculation may be the explanation for this finding.
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J. Cardiothorac. Vasc. Anesth. · Oct 2007
Global end-diastolic volume as a variable of fluid responsiveness during acute changing loading conditions.
Dynamic variables of preload such as stroke volume variation (SVV) have been shown to be good predictors of fluid responsiveness. They are, however, not applicable during spontaneous breathing and cardiac arrhythmias. Volumetric variables of preload, such as global end-diastolic volume (GEDV) and left ventricular end-diastolic area (LVEDA), might be alternative variables of preload to guide fluid administration. Therefore, the present study was designed to evaluate whether GEDV and LVEDA are suitable parameters of preload and fluid responsiveness during rapidly changing loading conditions. ⋯ In this animal model, GEDV and LVEDA were superior to SVV in accurately reflecting hemorrhage. However, GEDV and SVV but not LVEDA were suitable to predict fluid responsiveness.
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J. Cardiothorac. Vasc. Anesth. · Oct 2007
Letter Case ReportsPeripheral nerve blocks for high-risk case.