Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Jun 2008
Comparative StudyThe accuracy of the Vigileo/FloTrac continuous cardiac output monitor.
The Vigileo/FloTrac system (software version 1.01; Edwards Lifesciences, Irvine, CA) determines cardiac output, without calibration, by analysis of the arterial pulse wave. To assess the accuracy of the Vigileo/FloTrac system, it was compared with the pulmonary artery catheter bolus thermodilution method as the current standard method. The study design was prospective and observer blinded. ⋯ The described deviation from the standard must be regarded according to the user's needs. Considering the 30% limits of agreement, the Vigileo system (version 1.01) seems sufficiently accurate; applying the 20% criteria, it is not.
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J. Cardiothorac. Vasc. Anesth. · Jun 2008
Comparative StudyRegional differences in color tissue Doppler-derived measures of longitudinal right ventricular function using transesophageal and transthoracic echocardiography.
This study was designed to compare the right ventricular (RV) Doppler tissue imaging parameters of tricuspid annular isovolumic acceleration (IVA), systolic velocity (S), and basilar myocardial strain and strain rate (SR) by using both transesophageal echocardiography (TEE) (inferior wall) and transthoracic echocardiography (TTE) (free wall) in a cardiac surgical population under general anesthesia. ⋯ In cardiac surgical patients under anesthesia, the IVA appears to be the most consistent variable in the evaluation of RV function measured by either the TTE (lateral wall) or TEE (inferior wall). Technical difficulties may preclude the use of the deformation parameters in the assessment of RV function.
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J. Cardiothorac. Vasc. Anesth. · Jun 2008
Comparative StudyCan femoral artery pressure monitoring be used routinely in cardiac surgery?
The purpose of this study was to evaluate the safety of femoral arterial pressure monitoring in cardiac surgery. ⋯ Femoral artery pressure monitoring was associated with a low complication rate and, therefore, it can be used routinely in cardiac surgery.
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J. Cardiothorac. Vasc. Anesth. · Jun 2008
Comparative StudyCardiac output monitoring: comparison of a new arterial pressure waveform analysis to the bolus thermodilution technique in patients undergoing off-pump coronary artery bypass surgery.
To analyze the clinical agreement between the conventional intermittent bolus thermodilution (TD) technique and a new arterial pressure waveform analysis (APCO) technique (FloTrac; Edward Lifesciences, Irvine, CA) for cardiac output (CO) estimation. ⋯ Good agreement was found between the CO values obtained by the APCO and TD techniques throughout the intraoperative period including the period of coronary artery graft surgery.
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J. Cardiothorac. Vasc. Anesth. · Jun 2008
Comparative StudyChanges in intensive care unit performance measures associated with opening a dedicated thoracic surgical progressive care unit.
To determine the effect of the introduction of a specialty-specific progressive care unit (PCU) on the intensive care unit (ICU) to which relatively low-acuity patients had previously been admitted. ⋯ The introduction of a nonintensivist-directed PCU to care for thoracic surgical patients had a significant impact on the parent ICU. Of concern is that outcome and quality measures appeared to worsen and ICU readmission rate increased.