Journal of critical care
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Journal of critical care · Dec 2013
Bedside assessment of right atrial pressure in critically ill septic patients using tissue Doppler ultrasonography.
Right atrial pressure (RAP) is considered a surrogate for right ventricular filling pressure or cardiac preload. It is an important parameter for fluid management in patients with septic shock. It is commonly approximated by the central venous pressure (CVP) either invasively using a catheter placed in the superior vena cava or by bedside ultrasound, in which the size and respiratory variations of the inferior vena cava (IVC) are measured from the subcostal view. Doppler imaging of the tricuspid valve from the apical 4-chamber view has been proposed as an alternative approach for the estimation of RAP. The tricuspid E/Ea ratio is measured, where E is the peak velocity of the early diastolic tricuspid inflow and Ea is the peak velocity of the early diastolic relaxation of the lateral tricuspid annulus. We hypothesized that the tricuspid E/Ea ratio may represent an alternative to IVC metrics, using invasive CVP as the criterion standard, for the assessment of RAP in critically ill septic patients. ⋯ In this pilot study, Doppler imaging of the tricuspid valve provided a valuable alternative for noninvasive bedside estimation of RAP in septic patients.
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Journal of critical care · Dec 2013
Randomized Controlled Trial Comparative StudyDexmedetomidine preserves attention/calculation when used for cooperative and short-term intensive care unit sedation.
Differential effects on cognition were recently demonstrated between dexmedetomidine (DEX) and propofol (PRO) when used for cooperative sedation. Propofol was found to reduce cognition, whereas DEX improved cognition. To further discriminate these effects, we evaluated the effect of PRO vs DEX in selected areas of cognition. ⋯ Our findings indicate that DEX improved ACE attention/calculation subscale in awake patients receiving cooperative sedation. This is in contrast to the deterioration in all mean ACE subscale scores observed using PRO, suggesting DEX preserved cognitive function with specific preservation of focus and attention and allows for greater cognition compared with PRO across all cognitive domains.
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Journal of critical care · Dec 2013
Multicenter StudyCommunity-acquired pneumonia in patients with chronic obstructive pulmonary disease requiring admission to the intensive care unit: Risk factors for mortality.
The aims of this study are to identify factors predicting mortality in patients with chronic obstructive pulmonary disease (COPD) and community-acquired pneumonia (CAP) requiring intensive care unit (ICU) admission and to examine whether noninvasive ventilation treatment reduces mortality. ⋯ Noninvasive ventilation, hypertension, systemic corticosteroid treatment, and shorter ICU stay are associated with reduced mortality, whereas bilateral infiltration and longer duration of invasive mechanical ventilation are associated with increased risk of mortality in patients with COPD and CAP requiring ICU admission.
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Journal of critical care · Dec 2013
Observational StudyCan we predict pneumococcal bacteremia in patients with severe community-acquired pneumonia?
This study aimed to evaluate the role of biomarkers as markers of pneumococcal bacteremia in severe community-acquired pneumonia (SCAP). ⋯ In this cohort, significantly higher PCT, BNP, lactate, and CRP levels were found in BPP, and PCT presented the best ability to identify pneumococcal bacteremia. A PCT serum level lower than 17 ng/mL could identify patients with SCAP unlikely to have pneumococcal bacteremia.
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Journal of critical care · Dec 2013
Multicenter StudyMortality after in-hospital cardiopulmonary resuscitation: Multicenter analysis in Korea.
The purpose of this study is to evaluate factors associated with the mortality of patients admitted to intensive care units (ICUs) after in-hospital cardiopulmonary resuscitation (CPR) and the impact of a hospital rapid response system (RRS) on patient mortality in Korea. ⋯ Various physiologic and laboratory parameters were associated with the mortality of post-CPR ICU admitted patients, and the presence of an RRS did not reduce mortality of these patients in our study.