2,833 publications from this institution
Acute kidney injury (AKI) is a serious and as yet incompletely understood disorder in which sudden impairment of kidney function occurs secondary to one or more of a variety of underlying conditions. This disorder is very common in (elderly) ICU patients and is associated with very high mortality. Many of those who survive suffer from permanent kidney failure and other long-term morbidities, which may include cardiovascular disease and immune dysfunction. Epidemiologic evidence suggests that AKI is not a single disease, but a syndrome comprised of multiple, often coexisting, etiologies. Being usually part of multiorgan failure syndrome, it calls for multiple organ support therapy. The publication at hand contains sections on prerenal azotemia syndromes, dying 'of' or 'with' AKI, pathophysiology of sepsis-induced acute kidney injury, developments in prevention/treatment/rehabilitation, and renal support. Reporting the latest recommendations from experts, it provides valuable information for those that are interested in understanding the disorder and its treatment options.
Magnesium (Mg) is an essential ion for life and is involved in many important biological processes. Mg deficiency may have serious consequences and has been implicated in many diseases. Assessment of Mg status is difficult because Mg is essentially intracellular and there is no simple, rapid and accurate laboratory test to determine total body Mg. New, non-invasive techniques are being developed that could be used in the near future. Mg therapy is clearly indicated in "torsade de pointes" and preeclampsia. Mg therapy is not recommended in the treatment of acute myocardial infarction, stroke or non-severe acute asthma. Nevertheless, Mg administration may be useful to reduce cerebral ischemic events after aneurysmal subarachnoid hemorrhage or in the treatment of severe acute asthma, specifically in children. Finally, the potential post-operative analgesic effect of Mg is still debated and results from new, larger clinical trials may help clarify this issue. This article reviews physiological functions and pharmacology of Mg status as well as the causes, clinical manifestations, and treatment of Mg deficiency. The possible analgesic effects of Mg in the postoperative period are also reviewed.
Thrombocytopenia is associated with increased mortality rates in critically ill patients. It is especially present in cases of sepsis, but can also be caused by medications or associated with the use of foreign materials. Many physiological mechanisms (immune-mediated, consumption or destruction) are involved in the decrease of platelet count. The timing and intensity of the thrombocytopenia and the clinical context can help in the differential diagnosis. The aetiology of the thrombocytopenia must be elucidated in order to optimize the therapeutic management.
The Surviving Sepsis Campaign (SSC) is an international effort to reduce mortality in severe sepsis and septic shock. The campaign included the creation of evidence-based guidelines sponsored and endorsed by 11 international organizations. From these guidelines, sepsis change bundles for initial resuscitation (6 hours) and management (24 hours) were created as a performance improvement tool. In this issue of Critical Care, Gao et al. have evaluated performance at their institution by using a close adaptation of the two SSC bundle sets and demonstrated an association between 100 % compliance with the bundle elements and clinical outcome. The next step will be to demonstrate that the use of education and feedback for performance improvement will increase compliance and decrease mortality in the patient population in general. As members of the Surviving Sepsis Campaign (SSC), we are pleased to comment on the study by Gao et al. published in this issue of Critical Care [1]. Protocolized care now exists for a heart attack or a stroke, based on advances detailed in the medical literature. Until now there has been no attempt to reproduce such an approach in severe sepsis despite recently published studies that have shown decreased mortality and morbidity as a result of interventions applied to patients with severe sepsis [2-6]. The SSC (www.survivingsepsis.org) hopes to change that. The campaign is administered by the Society of Critical Care