Heart & lung : the journal of critical care
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To determine the relationship between the mixed venous oxygen saturation (SvO2) and the cardiac index (CI) in individuals during the first 8 hours after coronary artery bypass grafting. ⋯ The results of this study indicate that immediately after coronary artery bypass grafting, SvO2 cannot reliably predict CI. Although statistically significant results were found for the correlation between PvO2 and CI at all data collection times, the correlations were too low to support the use of the PvO2 as a reliable clinical predictor of CI without further study.
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Randomized Controlled Trial Clinical Trial
Effects of iced and room temperature injectate on cardiac output measurements in critically ill patients with low and high cardiac outputs.
To determine the effect of injectate temperature (iced or room temperature) on cardiac output values in critically ill adults with low and high cardiac outputs. ⋯ Although research is clearly needed to substantiate these findings, we suggest that nurses use iced injectate in patients with low and high cardiac outputs (< or = 3.5 L/min or > or = 8.0 L/min) to ensure accurate measurement of cardiac output.
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Review Case Reports
Recurrent unilateral lung hyperinflation as a manifestation of "auto-PEEP".
Recurrent right lung hyperinflation developed in a 68-year-old man with chronic airflow obstruction. His past history was significant for tuberculosis in the left lung requiring a left upper lobe resection and residual bronchiectasis in the remaining lung. Recognition of the unilateral lung hyperinflation as being a manifestation of unintentional positive end-expiratory pressure (auto-PEEP) resulted in appropriate measures to reverse the process and prevent further complications such as barotrauma. Patients with chronic airflow obstruction and an inflammatory or fibrotic disease process primarily involving one lung are at risk for the development of this atypical presentation of auto-PEEP.
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To examine the behavioral and emotional responses of the child and of the nonhospitalized adult family member (NHAFM) to facilitated child visitation in the critical care setting. ⋯ Facilitated child visitation may help children deal with the critical illness of an adult family member and deserves further study.