Journal of intensive care medicine
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J Intensive Care Med · May 2020
Multicenter Study Observational StudyComplementary Role of Hypothermia Identification to the Quick Sequential Organ Failure Assessment Score in Predicting Patients With Sepsis at High Risk of Mortality: A Retrospective Analysis From a Multicenter, Observational Study.
Although the quick Sequential Organ Failure Assessment (qSOFA) has been recommended for identifying patients at higher risk of hospital death, it has only a 60% sensitivity for in-hospital mortality. On the other hand, hypothermia associates with increased mortality and organ failure in patients with sepsis. This study aimed to assess the predictive validity of qSOFA for identifying patients with sepsis at higher risk of multiple organ dysfunction or death and the complementary effect of hypothermia. ⋯ A qSOFA score ≥2 may identify >90% of 28-day deaths among patients with severe sepsis; hypothermia may complement the predictive ability of qSOFA.
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J Intensive Care Med · May 2020
Multicenter StudyImpact of Serum Phosphate in Mechanically Ventilated Patients With Severe Sepsis and Septic Shock.
Hypo- and hyperphosphatemia are common in severe sepsis and septic shock. Published outcome data in patients with phosphate derangements primarily focus on hypophosphatemia and the general critically ill population. This study aimed to determine the impact of serum phosphate on clinical outcomes in patients with severe sepsis and septic shock. ⋯ Time-weighted hyperphosphatemia may be associated with increased mortality in mechanically ventilated patients with severe sepsis or septic shock. However, time-weighted hypo- and hyperphosphatemia were associated with decreased duration of mechanical ventilation. Future studies should further describe the impact of hypo- and hyperphosphatemia on clinical outcomes among critically ill patients with severe sepsis or septic shock.
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J Intensive Care Med · May 2020
Comparative StudyThe Impact of Opening a Medical Step-Down Unit on Medically Critically Ill Patient Outcomes and Throughput: A Difference-in-Differences Analysis.
To understand the impact of adding a medical step-down unit (SDU) on patient outcomes and throughput in a medical intensive care unit (ICU). ⋯ Opening our medical SDU improved medical ICU throughput but did not affect more patient-centered outcomes of hospital mortality and LOS.
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J Intensive Care Med · May 2020
Assessing Acid-Base Status in Circulatory Failure: Relationship Between Arterial and Peripheral Venous Blood Gas Measurements in Hypovolemic Shock.
In severe circulatory failure agreement between arterial and mixed venous or central venous values is poor; venous values are more reflective of tissue acid-base imbalance. No prior study has examined the relationship between peripheral venous blood gas (VBG) values and arterial blood gas (ABG) values in hemodynamic compromise. The objective of this study was to examine the correlation between hemodynamic parameters, specifically systolic blood pressure (SBP) and the arterial-peripheral venous (A-PV) difference for all commonly used acid-base parameters (pH, Pco 2, and bicarbonate). ⋯ In hypovolemic shock, the peripheral VBG does not demonstrate a higher CO2 concentration and lower pH compared to arterial blood. Therefore, the peripheral VBG is not a surrogate for the tissue acid-base status in hypovolemic shock, likely due to peripheral vasoconstriction and central shunting of blood to essential organs. This contrasts with the selective venous respiratory acidosis previously demonstrated in central venous and mixed venous measurements in circulatory failure, which is more reflective of acid-base imbalance at the tissue level than arterial blood. Further work needs to be done to better define the relationship between ABG and both central and peripheral VBG values in various types of shock.