Critical care medicine
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Critical care medicine · Sep 2013
Microvascular Effects of Heart Rate Control With Esmolol in Patients With Septic Shock: A Pilot Study*
β-blocker therapy may control heart rate and attenuate the deleterious effects of β-stimulating catecholamines in septic shock. However, their negative chronotropy and inotropy may potentially lead to an inappropriately low cardiac output, with a subsequent compromise of microvascular blood flow. The purpose of the present pilot study was to investigate the effects of reducing heart rate to less than 95 beats per minute in patients with septic shock using the β-1 adrenoceptor blocker, esmolol, with specific focus on systemic hemodynamics and the microcirculation. ⋯ This pilot study demonstrated that heart rate control by a titrated esmolol infusion in septic shock patients was associated with maintenance of stroke volume, preserved microvascular blood flow, and a reduction in norepinephrine requirements.
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Critical care medicine · Sep 2013
Implementation of the pain, agitation, and delirium clinical practice guidelines and promoting patient mobility to prevent post-intensive care syndrome.
Surviving critical illness is associated with persistent and severe physical, cognitive, and psychological morbidities. The Society of Critical Care Medicine has developed pain, agitation, and delirium guidelines and promoted mobility to improve care of critically ill patients. A task force has developed tools to facilitate and rapidly implement the translation of guideline care recommendations into practice. ⋯ This article will explore relationships between the pain, agitation, and delirium guidelines, mobility recommendations, and post-intensive care syndrome initiative. Implementation of the pain, agitation, and delirium guidelines taking into account current data regarding post-intensive care syndrome outcomes and potential interventions are an important first step toward improving outcomes for patients and their families. Research is needed to reduce the impact of long-term negative consequences of critical illness and to fully understand the best within- and post-ICU interventions, along with the optimal timing and dose of such interventions to produce the best long-term outcomes.
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The management of pain, agitation, and delirium in critically ill patients can be complicated by multiple factors. Decisions to administer opioids, sedatives, and antipsychotic medications are frequently driven by a desire to facilitate patients' comfort and their tolerance of invasive procedures or other interventions within the ICU. Despite accumulating evidence supporting new strategies to optimize pain, sedation, and delirium practices in the ICU, many critical care practitioners continue to embrace false perceptions regarding appropriate management in these critically ill patients. This article explores these perceptions in more detail and offers new evidence-based strategies to help critical care practitioners better manage sedation and delirium, particularly in ICU patients.
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Critical care medicine · Sep 2013
Airway Fungal Colonization Compromises the Immune System Allowing Bacterial Pneumonia to Prevail.
To study the correlation between fungal colonization and bacterial pneumonia and to test the effect of antifungal treatments on the development of bacterial pneumonia in colonized rats. ⋯ C. albicans airway colonization elicited a Th1-Th17 immune response that favored the development of bacterial pneumonia via the inhibition of bacterial phagocytosis by alveolar macrophages. Antifungal treatment decreased the risk of bacterial pneumonia in colonized rats.