Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Jun 2006
Cardiac output estimation with a new Doppler device after off-pump coronary artery bypass surgery.
To compare cardiac output (CO), stroke volume (SV), and cardiac index (CI) as estimated with a new, noninvasive Doppler device (Ultrasonic Cardiac Output Monitor [USCOM]; USCOM Ltd, Sydney, Australia) with those measured with the bolus thermodilution (TD) technique. ⋯ This study showed excellent agreement between the values for CO, SV, and CI as determined with USCOM and TD. Since there was only 1 time period for CO estimation in each patient with both methods, the stability of this correlation needs to be further investigated over time.
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J. Cardiothorac. Vasc. Anesth. · Jun 2006
Clinical outcomes of low-risk patients undergoing beating-heart surgery with or without pulmonary artery catheterization.
For patients who undergo off-pump coronary artery bypass (OPCAB) surgery, pulmonary artery catheterization (PAC) has been proposed as a useful intraoperative monitoring tool. This study was designed to determine if the choice of PAC versus central venous pressure monitoring (CVP) had any effect on outcome after OPCAB. This study compared these 2 methods of hemodynamic monitoring in low-risk patients undergoing beating-heart surgery via a median sternotomy and evaluated their effect on morbidity and in-hospital mortality. ⋯ This single-institution, retrospective study suggests that in low-risk patients undergoing beating-heart surgery, CVP monitoring may be sufficient.
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J. Cardiothorac. Vasc. Anesth. · Jun 2006
The effects of esmolol and dexmedetomidine on myocardial oxygen consumption during sympathetic stimulation in dogs.
The purpose of this study was to compare the potential of the beta(1)-adrenergic receptor blocker esmolol and the alpha(2)-adrenergic receptor agonist dexmedetomidine to suppress the cardiovascular and neuroendocrine response to a sympathetic stimulus. ⋯ Both esmolol and dexmedetomidine have the potential to suppress some of the cardiovascular and neuroendocrine changes to a sympathetic stimulus but neither drug abolished the increase in myocardial oxygen consumption.
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J. Cardiothorac. Vasc. Anesth. · Jun 2006
The impact of intra-aortic balloon pumping on cardiac output determination by pulmonary arterial and transpulmonary thermodilution in pigs.
The aim of this study was to evaluate the impact of intra-aortic balloon pumping (IABP) on the comparison of simultaneous measurements of cardiac output via pulmonary arterial and transpulmonary thermodilution (PiCCO; Pulsion Medical Systems, Munich, Germany). ⋯ Transpulmonary thermodilution is suitable for cardiac output measurement during IABP. Hence, in critically ill patients with cardiac pump failure, blood flow may be determined as accurately with the less-invasive transpulmonary method as with the traditional pulmonary arterial thermodilution one.