Critical care : the official journal of the Critical Care Forum
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Childbirth is a major event in the lives of mothers and their families. Critical illness in pregnancy is uncommon but may arise from conditions unique to pregnancy, conditions exacerbated by pregnancy and coincidental conditions. ⋯ It is therefore essential to adopt an early multidisciplinary approach for the care of these women. With birth rates increasing, complex caseloads and changes in training of both medical and midwifery staff, the challenge of caring for critically ill obstetric patients requires urgent attention.
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Severe community-acquired pneumonia is a major cause of admission to intensive care units and its mortality rates remain exceedingly high. In the search for adjunctive therapies, clinicians who were encouraged by available, though limited, evidence prescribed steroids in most patients with severe sepsis or septic shock, including those with community-acquired pneumonia. Current evidence demonstrates that, whereas corticosteroids should not be routinely employed as adjuvant therapy for severe community-acquired pneumonia, there is sufficient equipoise to continue studying the use of corticosteroids.
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The purpose of our study was to determine whether hypothermia has any effects on physiological hemodynamic responses to epinephrine (Epi), and whether rewarming reverses these effects. ⋯ This study shows that hypothermia causes a change in the physiological hemodynamic response to Epi, which is not reversed by rewarming.
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Increased vascular permeability represents one of the hallmarks of sepsis. In the kidney, vascular permeability is strictly regulated by the 'glomerular filtration barrier' (GFB), which is comprised of glomerular endothelium, podocytes, their interposed basement membranes and the associated glycocalyx. Although it is likely that the GFB and its glycocalyx are altered during sepsis, no study has specifically addressed this issue. The aim of this study was to evaluate whether albuminuria--the hallmark of GFB perm-selectivity--occurs in the initial stage of sepsis and whether it is associated with morphological and biochemical changes of the GFB. ⋯ In its initial phase, sepsis is associated with a significant alteration in the composition of the GFB-associated glycocalyx, with loss of GFB perm-selectivity as documented by albumin leakage into urine.
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ICU-acquired muscle weakness commonly occurs in patients with septic shock and is associated with poor outcome. Although atrophy is known to be involved, it is unclear whether ligands in plasma from these patients are responsible for initiating degradation of muscle proteins. The aim of the present study was to investigate if plasma from septic shock patients induces skeletal muscle atrophy and to examine the time course of plasma-induced muscle atrophy during ICU stay. ⋯ Plasma from patients with septic shock induces loss of myosin and activates key regulators of proteolysis in skeletal myotubes. IL-6 is an important player in sepsis-induced muscle atrophy in this model. The potential to induce atrophy is strongest in plasma obtained during the early phase of human sepsis.