Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Feb 2001
Randomized Controlled Trial Clinical TrialThe effects of fenoldopam on coronary conduit blood flow after coronary artery bypass graft surgery.
To quantify the effects of fenoldopam, 0.1 microg/kg/min, on left internal mammary artery (LIMA) and saphenous vein blood flow after coronary anastomosis. ⋯ The findings indicate that fenoldopam, 0.1 microg/kg/min, did not influence coronary conduit blood flow to a clinically significant extent. The small increase in LIMA blood flow may be of greater importance in high-risk patients or in the prevention of coronary arterial spasm.
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J. Cardiothorac. Vasc. Anesth. · Feb 2001
Randomized Controlled Trial Clinical TrialElectric impedance for evaluation of body fluid balance in cardiac surgical patients.
To evaluate whether electric impedance can be used to monitor body fluid balance and fluid distribution in cardiac surgical patients. ⋯ Alterations in electric impedance closely follow changes in fluid balance during the perioperative period. This method can be used in clinical practice to control postoperative body fluid balance in cardiac surgical patients.
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J. Cardiothorac. Vasc. Anesth. · Feb 2001
Randomized Controlled Trial Clinical TrialCorrelation of peripheral venous pressure and central venous pressure in surgical patients.
To determine the degree of agreement between central venous pressure (CVP) and peripheral venous pressure (PVP) in surgical patients. ⋯ Under the conditions of this study, PVP showed a consistent and high degree of agreement with CVP in the perioperative period in patients without significant cardiac dysfunction. PVP -2 was useful in predicting CVP over common clinical ranges of CVP. PVP is a rapid noninvasive tool to estimate volume status in surgical patients.
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J. Cardiothorac. Vasc. Anesth. · Feb 2001
Clinical TrialThe effects of recent aspirin ingestion on platelet function in cardiac surgical patients.
To examine the effects of the preoperative aspirin-free interval on platelet function in cardiac surgical patients. ⋯ Cardiac surgical patients who ingest aspirin < or =2 days preoperatively have greater impairment of platelet function than patients who have a longer preoperative aspirin-free interval.
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J. Cardiothorac. Vasc. Anesth. · Feb 2001
Comparative Study Clinical TrialComparison of two sites of inflow pressure measurement during retrograde cerebral perfusion.
To determine whether internal jugular venous valves influence inflow pressure during retrograde cerebral perfusion. ⋯ Internal jugular venous valves can obstruct retrograde cerebral perfusion inflow, manifest by an inflow pressure difference between the superior vena cava and internal jugular vein. In the presence of competent internal jugular venous valves, measurement of inflow pressure in the superior vena cava may be an inaccurate estimate of actual cerebral perfusion pressure. Internal jugular vein pressure should be monitored to avoid inadvertent cerebral hypoperfusion.