Journal of critical care
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Journal of critical care · Oct 2015
Observational StudyProlonged pulmonary support after cardiac surgery: incidence, risk factors and outcomes: a retrospective cohort study.
Post-cardiac surgery pulmonary dysfunction may be underreported. Therefore, we evaluated associated risk factors for prolonged pulmonary support after cardiac surgery. ⋯ We identified risk factors for prolonged mechanical ventilation and supplemental O2 use, described an association with increased adverse outcomes, and determined that persistent pulmonary edema on day 2 was the most likely radiological finding.
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Journal of critical care · Oct 2015
Prospective analysis of cardiac collapsibility of inferior vena cava using ultrasonography.
The inferior vena cava (IVC) diameter and its respiratory change (respiratory variation) reportedly correlate well with the central venous pressure and response to fluid. However, changes in the IVC diameter are related to the cardiac rhythm (cardiac variation), which can be useful as an indicator for intravascular volume but can affect respiratory variation. We conducted a prospective analysis of this cardiac variation in adult emergency department patients. ⋯ The IVC cardiac variation affects our interpretation of ultrasonography IVC imaging. The IVC cardiac variation provides several advantages over other parameters of intravascular volume. Therefore, it can be a novel tool to assess the intravascular volume of the patients.