Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Aug 2013
Changes in end-tidal carbon dioxide and volumetric carbon dioxide as predictors of volume responsiveness in hemodynamically unstable patients.
The purpose of this study was to determine whether changes in PETCO2 and exhaled CO2 (VCO2) can predict fluid responsiveness after a preload challenge. ⋯ Dynamic changes in PETCO2 and VCO2 may be used as adjunctive indicators of fluid responsiveness in patients without underlying lung disease.
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J. Cardiothorac. Vasc. Anesth. · Aug 2013
Clinical significance of the cross-sectional area of the internal jugular vein.
The aim of this study was to compare the cross-sectional area (CSA) of the right internal jugular vein (IJV) with that of the left IJV and to evaluate the anatomic location of the IJV in relation to the common carotid artery, utilizing computed tomography scans of the neck. ⋯ This study suggested one advantage of using the right IJV compared with the left for central venous cannulation. However, anatomic variations of the IJV, such as a small CSA and a medial or posterior position, are not associated with demographic data. Although right-handedness was well-correlated with a larger ipsilateral IJV, a possibility of a larger contralateral IJV should be considered. Therefore, central venous cannulation with ultrasonography is recommended to avoid complications and repeated needling.