Critical care medicine
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Critical care medicine · Oct 2001
ReviewEnd-of-life care in the intensive care unit: a research agenda.
The intensive care unit (ICU) represents a unique clinical setting in which mortality is relatively high and the professional culture tends to be one of "rescue therapy" using technological and invasive interventions. For these reasons, the ICU is an important environment for understanding and improving end-of-life care. Although there have been consensus statements and review articles on end-of-life care in the ICU, there is limited evidence on which to base an assessment of best practices for providing high-quality end-of-life care in this setting. ⋯ Outlining unanswered questions on end-of-life care in the ICU is a first step to providing the answers that will allow us to improve care to patients dying in the ICU. These questions also serve to focus clinicians and educators on the important areas for improving quality of care.
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Critical care medicine · Oct 2001
ReviewHeart failure in pediatric septic shock: utilizing inotropic support.
Septic shock presents a unique challenge in the pediatric patient. Sepsis stimulates the release of inflammatory mediators that can compromise cardiac function. Oxygen extraction abnormalities, diminished responses to adrenergic agonists, and impaired ventricular function often result. After fluid resuscitation and antibiotic therapy, careful cardiovascular assessment is needed to administer appropriate inotropic and vasoactive drugs.
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Critical care medicine · Oct 2001
Comparative StudyNatural inhibitors of neutrophil function in acute respiratory distress syndrome.
Neutrophils play a key role in the physiopathogenesis of acute lung injury in general and acute respiratory distress syndrome (ARDS) in particular. To identify the anti-inflammatory mediators with a protective effect on lung tissue damage in ARDS, we correlated the concentration of the Clara cell 16-kD protein (CC16; an inhibitor of neutrophil chemotaxis), angiogenin (an inhibitor of degranulation), and the total radical oxygen neutralizing activity with the amount of elastase (a marker of neutrophil activation) and with the Pao2/Fio2 ratio, which is inversely related to lung injury. ⋯ A high concentration of CC16, a natural inhibitor of neutrophil function, decreases neutrophil-mediated lung damage of patients with ARDS. Strategies to increase natural anti-inflammatory agents, and thus influence the disruption of the balance between natural inflammatory and anti-inflammatory or protective factors, could be useful to modulate the tissue destruction and the course of ARDS.
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Critical care medicine · Oct 2001
Reliable tidal volume estimates at the airway opening with an infant monitor during high-frequency oscillatory ventilation.
To assess the suitability of a hot-wire anemometer infant monitoring system (Florian, Acutronic Medical Systems AG, Hirzel, Switzerland) for measuring flow and tidal volume (Vt) proximal to the endotracheal tube during high-frequency oscillatory ventilation. ⋯ The Florian infant hot-wire flowmeter and monitoring system provides reliable measurements of Vt at the airway opening during high-frequency oscillatory ventilation when employed at frequencies of 8-13 Hz. The bedside application could improve monitoring of patients receiving high-frequency oscillatory ventilation, favor a better understanding of the physiologic consequences of different high-frequency oscillatory ventilation strategies, and therefore optimize treatment.