Anaesthesiology intensive therapy
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Anaesthesiol Intensive Ther · Jan 2015
ReviewAssessment of loading conditions with cardiac ultrasound. A comprehensive review.
Optimization of the preloading conditions and concomitant determination of endpoints of fluid administration are the most frequent therapeutic actions in critically ill patients. Besides a clinical appraisal, reproducible data should be acquired at the bedside to estimate the adequacy of fluid resuscitation. The dynamic assessment and determination of fluid responsiveness plays a major role in this respect. ⋯ Moreover, left sided variables, including aortic flow variation, with intermittent swings of intrathoracic pressure during mechanical ventilation, may be achieved non-invasively with Doppler-echocardiography. Both in terms of resuscitation, as well as correct interpretation of various two-dimensional and Doppler variables, it is essential to acquire a clear understanding of the filling status of a patient. Doppler-echocardiography plays herein a pivotal role.
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Anaesthesiol Intensive Ther · Jan 2015
ReviewAn overview on fluid resuscitation and resuscitation endpoints in burns: Past, present and future. Part 2 - avoiding complications by using the right endpoints with a new personalized protocolized approach.
While organ hypoperfusion caused by inadequate resuscitation has become rare in clinical practice due to the better understanding of burn shock pathophysiology, there is growing concern that increased morbidity and mortality related to over-resuscitation induced by late 20th century resuscitation strategies based on urine output, is occurring more frequently in burn care. In order to reduce complications related to this concept of "fluid creep", such as respiratory failure and compartment syndromes, efforts should be made to resuscitate with the least amount of fluid to provide adequate organ perfusion. ⋯ Special reference is made to the role of intra-abdominal hypertension in burn care and adjunctive treatments modulating the inflammatory response. Finally, as urine output has been recognized as a poor resuscitation target, a new personalized stepwise resuscitation protocol is suggested which includes targets and endpoints that can be obtained with modern, less invasive hemodynamic monitoring devices like transpulmonary thermodilution.
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Anaesthesiol Intensive Ther · Jan 2015
ReviewRole of permissive hypotension, hypertonic resuscitation and the global increased permeability syndrome in patients with severe hemorrhage: adjuncts to damage control resuscitation to prevent intra-abdominal hypertension.
Secondary intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS) are closely related to fluid resuscitation. IAH causes major deterioration of the cardiac function by affecting preload, contractility and afterload. The aim of this review is to discuss the different interactions between IAH, ACS and resuscitation, and to explore a new hypothesis with regard to damage control resuscitation, permissive hypotension and global increased permeability syndrome. ⋯ Novel markers like the capillary leak index, extravascular lung water and pulmonary permeability index may help the clinician in guiding appropriate fluid management. Capillary leak is an inflammatory condition with diverse triggers that results from a common pathway that includes ischaemia-reperfusion, toxic oxygen metabolite generation, cell wall and enzyme injury leading to a loss of capillary endothelial barrier function. Fluid overload should be avoided in this setting.
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Anaesthesiol Intensive Ther · Jan 2015
ReviewRight dose, right now: using big data to optimize antibiotic dosing in the critically ill.
Antibiotics save lives and are essential for the practice of intensive care medicine. Adequate antibiotic treatment is closely related to outcome. However this is challenging in the critically ill, as their pharmacokinetic profile is markedly altered. ⋯ At present, therapeutic drug monitoring may be of help, but has major disadvantages, remains unavailable for most antibiotics and has produced mixed results. We therefore propose the AutoKinetics concept, taking decision support for antibiotic dosing back to the bedside. By direct interaction with electronic patient records, this opens the way for the use of big data for providing the right dose at the right time in each patient.
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Anaesthesiol Intensive Ther · Jan 2015
ReviewAssessment of regional ventilation in acute respiratory distress syndrome by electrical impedance tomography.
Mechanical ventilation in acute respiratory distress syndrome (ARDS) incurs a risk of ventilator-associated lung injury (VALI) from inhomogeneous conditions and different properties of dependent and non-dependent lung regions at risk of atelectasis and overdistension, respectively. Electrical impedance tomography (EIT) offers regional ventilation assessment to optimise treatment with mechanical ventilation. This article provides an overview of scientific literature on the application of impedance tomography in acute respiratory distress syndrome. It also presents the results of EIT studies in different clinical situations that may be of use in implementing impedance tomography for treating ARDS.