Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Apr 2006
Randomized Controlled TrialEffect of lung ventilation with 50% oxygen in air or nitrous oxide versus 100% oxygen on oxygenation index after cardiopulmonary bypass.
This study was designed to assess the use of 100% oxygen or 50% oxygen in air or nitrous oxide after cardiopulmonary bypass (CPB) on atelectasis, as evidenced by the oxygenation index (PaO2/F(I)O2), after coronary artery bypass graft (CABG) surgery. ⋯ Significant deterioration in arterial oxygenation and an increase in the extubation time occurred with the use of 100% O2 after CPB, whereas better oxygenation was evident with the use of 50% O2 in air.
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J. Cardiothorac. Vasc. Anesth. · Apr 2006
Comparative StudyPredictive factors of hemodynamic collapse after coronary artery bypass grafting: a case-control study.
Sudden hemodynamic collapse after coronary artery bypass graft (CABG) surgery is a complication with high morbidity and mortality. The aim of this study was to explore factors possibly predictive of this major complication. ⋯ Inadequate tissue perfusion, postoperative myocardial ischemia, and increased need for inotropic and mechanical support preceded hemodynamic collapse. Interventions to improve tissue perfusion and to prevent and treat myocardial ischemia may result in a more favorable outcome.
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J. Cardiothorac. Vasc. Anesth. · Apr 2006
Comparative StudyRetrograde autologous priming of the cardiopulmonary bypass circuit: safety and impact on postoperative outcomes.
Retrograde autologous priming (RAP) is a blood conservation technique used to limit the severity of hemodilution during cardiopulmonary bypass and reduce perioperative transfusions. The aim of this investigation was to examine the safety of RAP and to determine the effect of RAP on adverse outcomes after cardiac surgery. ⋯ The authors observed no evidence of any increase in adverse events in the RAP group of this retrospective cohort study, but they did observe a decrease in the incidence of postoperative cardiac arrest in the RAP group. These findings suggest that RAP is a safe technique and may have a beneficial effect on postoperative outcomes.
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J. Cardiothorac. Vasc. Anesth. · Apr 2006
Comparative StudyArterial-to-end-tidal carbon dioxide tension difference in children with congenital heart disease.
This study estimated the arterial-to-end-tidal carbon dioxide tension difference (deltaPaCO2-PE'CO2) in children with congenital heart disease; evaluated whether hyperventilation can reduce this difference; and analyzed the relationship between the difference and the oxygen saturation (SaO2) and hemoglobin level. ⋯ The deltaPaCO2-end-tidal carbon dioxide (PE'CO2) can be increased both in cyanotic and acyanotic children. Increased PAP is as important as increased PBF or right-to-left shunting in producing disorders in carbon dioxide homeostasis. Hyperventilation is of little use in reducing deltaPaCO2-PE'CO2 in children with high PAPs and pulmonary hyperperfusion.