Resp Care
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Chronic critical illness (CCI) is syndrome of neuromuscular weakness, brain dysfunction, malnutrition, endocrinopathies, and symptom distress. Two conceptual themes may be useful in discussing CCI. The first is a clinical roadmap in which a patient suffers an acute critical illness, survives the initial insult, but yet is unable to be liberated from the ventilator. ⋯ Given the association between common CCI antecedents and inflammation, attempts to control and balance the pro-inflammatory and anti-inflammatory mediators should begin as early as possible and continue throughout the ICU stay. Since surrogate measures such as biomarkers often fail to predict the effect of interventions, the focus should be on the outcomes patients experience. As of now, providing evidence-based, high quality ICU management of patients at risk for CCI appears to be the best strategy of care.
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Technological innovations in the ICU have led to artificially prolonged life, with an associated cost. Chronic critical illness (CCI) occurs in patients with prolonged mechanical ventilation and allostatic overload, and is associated with a discrete and consistent metabolic syndrome. ⋯ Ideally, IMS should be under the supervision of a metabolic support consultative team. Further research specifically focused on the CCI population is needed to validate this current approach.
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The chronically critically ill (CCI) comprise a rapidly growing population of patients who have survived acute critical illness, only to be left with ongoing organ dysfunctions requiring high levels of specialized care for months or years. In many ways, CCI is an "iatrogenic" process, reflecting the ability of modern life support technologies to keep patients alive for prolonged periods of time despite ongoing life threatening illness. ⋯ Importantly, CCI patients transition among these venues frequently, reflecting the nature of CCI to be punctuated with episodes of acute critical illness. Management of the CCI population requires a special combination of intensive care and rehabilitative skills.
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Past research in chronic critical illness has been effective in defining the population and identifying unique aspects of their outcomes and resource needs, but there has been little research focused on interventions to improve outcomes. This review discusses some research priorities that could have immediate impact on patient outcomes. General topics include prevention or limiting the incidence of chronic critical illness; specific topics related to patient management, such as interventions for weaning, rehabilitation, nutrition or infections; and methods to enhance communication and end-of-life care. In addition to specific patient management interventions, further comparative effectiveness research on care settings is indicated, considering the expected growth in the patient population and the substantial resource needs.
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Critically ill patients frequently experience acute brain dysfunction in the form of coma or delirium, both of which are common during acute and chronic critical illness (CCI). These manifestations of brain dysfunction are associated with numerous adverse outcomes during acute critical illness, including prolonged hospitalization, increased healthcare costs, and increased mortality. The prognosis of CCI patients with coma or delirium has not yet been thoroughly studied, but preliminary studies suggest this population is at high risk for detrimental outcomes associated with acute brain dysfunction. ⋯ Interventions directed at reducing the burden of brain dysfunction during critical illness have shown promise in studies of patients with acute critical illness, but these therapies have yet to be studied during CCI. Thus, multicenter randomized trials are needed to determine which interventions are most effective for such patients. Until these data are available, management strategies that have been proven beneficial during acute critical illness-such as reduction of sedative exposure, especially to benzodiazepines, and early use of physical and occupational therapy-should be employed during the treatment of patients with CCI.