American journal of critical care : an official publication, American Association of Critical-Care Nurses
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Randomized Controlled Trial
Evaluation of an intervention to maintain endotracheal tube cuff pressure within therapeutic range.
Endotracheal tube cuff pressure must be kept within an optimal range that ensures ventilation and prevents aspiration while maintaining tracheal perfusion. ⋯ The intervention was effective in maintaining cuff pressure within an optimal range, and cuff pressure decreased over time without intervention. The effect of the intervention on outcomes such as ventilator-associated pneumonia and tracheal damage requires further study.
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Among cardiac surgery patients, those with impaired cognitive status before surgery may have longer postoperative stays than do patients with normal status and may require additional care upon discharge. ⋯ Cognitive screening before cardiac surgery can identify patients with impaired cognitive status who are less likely than patients with normal cognitive status to return home after cardiac surgery.
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Depressive symptoms are common in patients with heart failure, but few investigators have reported the validity and reliability of measures of depressive symptoms among these patients. ⋯ The PHQ-8 demonstrated satisfactory validity and reliability; these results support its use to measure depressive symptoms in patients with heart failure.
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Cardiopulmonary bypass during cardiac surgery can result in a shortfall in oxygen delivery relative to demand, marked by a decrease in muscle tissue oxygen saturation as blood flow is redistributed to vital organs. Such "tissue shock" might impair postoperative recovery. ⋯ In patients undergoing cardiac surgery, reduced tissue oxygen saturation in the thenar eminence may be associated with poor postoperative outcome. Further studies are needed to confirm these findings and to determine whether measures to improve the balance between oxygen delivery and consumption might improve both tissue oxygen saturation and outcome.