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- Aboab, Jerome, et al.
(författare)
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Effect of inspired oxygen fraction on alveolar derecruitment in acute respiratory distress syndrome
- 2006
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Ingår i: Intensive Care Medicine. - : Springer Science and Business Media LLC. - 0342-4642 .- 1432-1238. ; 32:12, s. 1979-1986
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Tidskriftsartikel (refereegranskat)abstract
- Objective: High fractions of inspired oxygen (FIO2) used in acute lung injury (ALI) may promote resorption atelectasis. The impact of derecruitment related to high FIO2 in ALI is debated. We evaluated derecruitment with 100% vs. 60% FIO2 at two levels of positive end-expiratory pressure (PEEP). Patients: Fourteen consecutive patients with ALI were studied. Interventions: Recruited volume at two PEEP levels was computed from two pressure-volume curves, recorded from PEEP and from zero end-expiratory pressure, using the sinusoidal flow modulation method. PEEP-induced recruitment was measured during prolonged expiration as the difference between the two curves at a given pressure. PaO2/FIO2 was also measured. PEEP was 5 +/- 1 or 14 +/- 3 cmH(2)O and FIO2 was 60% or 100%, yielding four combinations. We looked for differences between the beginning and end of a 30-min period with each combination. Measurement and results: With low PEEP and 100% FIO2, recruited volume decreased significantly from 68 +/- 53 to 39 +/- 43 ml and PaO2/FIO2 from 196 +/- 104 to 153 +/- 83 mmHg. With the three other combinations (low PEEP and 60% FIO2 or high PEEP and 60% or 100% FIO2) none of the parameters decreased significantly. Conclusion: In mechanically ventilated patients with ALI the breathing of pure oxygen leads to derecruitment, which is prevented by high PEEP.
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- Antonelli, Massimo, et al.
(författare)
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Year in review in Intensive Care Medicine 2012. II : Pneumonia and infection, sepsis, coagulation, hemodynamics, cardiovascular and microcirculation, critical care organization, imaging, ethics and legal issues
- 2013
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Ingår i: Intensive Care Medicine. - : Springer Science and Business Media LLC. - 0342-4642 .- 1432-1238. ; 39:3, s. 345-364
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Tidskriftsartikel (refereegranskat)
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- Backes, Yara, et al.
(författare)
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Usefulness of suPAR as a biological marker in patients with systemic inflammation or infection : a systematic review
- 2012
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Ingår i: Intensive Care Medicine. - : Springer Science and Business Media LLC. - 0342-4642 .- 1432-1238. ; 38:9, s. 1418-1428
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Forskningsöversikt (refereegranskat)abstract
- PURPOSE:Systemic levels of soluble urokinase-type plasminogen activator receptor (suPAR) positively correlate with the activation level of the immune system. We reviewed the usefulness of systemic levels of suPAR in the care of critically ill patients with sepsis, SIRS, and bacteremia, focusing on its diagnostic and prognostic value.METHODS:A PubMed search on suPAR was conducted, including manual cross-referencing. The list of papers was narrowed to original studies of critically ill patients. Ten papers on original studies of critically ill patients were identified that report on suPAR in sepsis, SIRS, or bacteremia.RESULTS:Systematic levels of suPAR have little diagnostic value in critically ill patients with sepsis, SIRS, or bacteremia. Systemic levels of suPAR, however, have superior prognostic power over other commonly used biological markers in these patients. Mortality prediction by other biological markers or severity-of-disease classification system scores improves when combining them with suPAR. Systemic levels of suPAR correlate positively with markers of organ dysfunction and severity-of-disease classification system scores. Finally, systemic levels of suPAR remain elevated for prolonged periods after admission and only tend to decline after several weeks. Notably, the type of assay used to measure suPAR as well as the age of the patients and underlying disease affect systemic levels of suPAR.CONCLUSIONS:The diagnostic value of suPAR is low in patients with sepsis. Systemic levels of suPAR have prognostic value, and may add to prognostication of patients with sepsis or SIRS complementing severity-of-disease classification systems and other biological markers.
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