Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Apr 2011
Comparative StudyComparative feasibility of myocardial velocity and strain measurements using 2 different methods with transesophageal echocardiography during cardiac surgery.
To assess the feasibility and correlation between tissue Doppler and speckle tracking imaging when measuring myocardial velocity, strain, and strain rate with transesophageal echocardiography. ⋯ The correlation between tissue Doppler and speckle tracking with transesophageal echocardiography appears valid when predominantly confined to segments moving in a radial direction adjacent to the ultrasound transducer. Tissue Doppler echocardiography of radial cardiac motion appears to be the most feasible technique of measuring myocardial velocity, strain, and strain rate during cardiac surgery.
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J. Cardiothorac. Vasc. Anesth. · Apr 2011
Comparative StudyDoes preoperative B-type natriuretic peptide better predict adverse outcome and prolonged length of stay than the standard European System for Cardiac Operative Risk Evaluation after cardiac surgery?
Although B-type natriuretic peptide (BNP) strongly predicts cardiac morbidity and mortality, the European System for Cardiac Operative Risk Evaluation (EuroSCORE) has a modest predictive value to identify a composite operative risk after cardiac surgery. The authors tested the hypothesis that a single preoperative BNP measurement would be superior to standard EuroSCORE in predicting composite adverse outcomes after cardiac surgery. ⋯ Preoperative BNP measurement is a strong, independent, and more accurate predictor of adverse outcome than EuroSCORE in patients undergoing cardiac surgery. BNP could be considered as a simple and objective tool for the detection of high-risk patients after cardiac surgery.
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J. Cardiothorac. Vasc. Anesth. · Apr 2011
Comparative StudyEstimating the volume of chronic pleural effusions using transesophageal echocardiography.
To develop a simple method of quantifying the volume of chronic pleural effusions caused by heart failure using transesophageal echocardiography measurement of the maximum cross-sectional area of the pleural effusion. ⋯ This study showed a simple way of quantifying the volume of chronic pleural effusions from heart failure in patients undergoing cardiac surgery, with potential for clinical applications.
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J. Cardiothorac. Vasc. Anesth. · Apr 2011
Comparative StudyPropofol inhibits desflurane-induced preconditioning in rabbits.
The authors tested the hypothesis that ischemic and desflurane-induced preconditioning are blocked by propofol. ⋯ Desflurane-induced preconditioning markedly reduced infarct size and was blocked by propofol, whereas ischemic preconditioning was not blocked by propofol. The results suggest an important interference between propofol and anesthetic-induced preconditioning and might explain some contradictory findings in studies in humans.