Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Jun 2012
Socioeconomic position is not associated with 30-day or 1-year mortality in demographically diverse vascular surgery patients.
Disparities in outcomes after surgical procedures have been attributed to race, sex, use of private insurance, and socioeconomic position (SEP). The purpose of this study was to determine the impact of SEP on mortality after lower-extremity bypass (LEB) surgery in a diverse patient population with extremes of SEP. ⋯ Disparities in SEP are not associated with short- or long-term mortality after LEB surgery. Other comorbid risk factors are more important when determining outcomes and should be the focus of interventions to improve outcomes.
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J. Cardiothorac. Vasc. Anesth. · Jun 2012
Respiratory variations of R-wave amplitude in lead II are correlated with stroke volume variations evaluated by transesophageal Doppler echocardiography.
The authors hypothesized that variations in electrocardiographically derived R-wave amplitude might be correlated with mechanical ventilation-induced variations in stroke volume as determined by transesophageal echocardiography. ⋯ ΔRII is correlated with stroke volume variations as determined by transesophageal echocardiography in mechanically ventilated patients and can identify the stroke volume variation cutoff of 15%, previously determined to be the cutoff for volume responsiveness.
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J. Cardiothorac. Vasc. Anesth. · Jun 2012
Morphine reduces the threshold of remote ischemic preconditioning against myocardial ischemia and reperfusion injury in rats: the role of opioid receptors.
Opioid receptors mediate the cardioprotection of remote ischemic preconditioning (RIPC). The authors tested the hypothesis that morphine reduces the threshold of cardioprotection produced by RIPC. ⋯ MOR reduces the threshold of RIPC, and opioid receptors mediate this augmentative effect.