Critical care : the official journal of the Critical Care Forum
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The correction of hypovolemia with acellular fluids results in acute normovolemic anemia. Whether the choice of the infusion fluid has an impact on the maintenance of oxygen (O₂) supply during acute normovolemic anemia has not been investigated so far. ⋯ The choice of the intravenous fluid has an impact on the tolerance of acute normovolemic anemia induced by acellular volume replacement. Third-generation tetrastarch preparations (e.g., HES 130/0.4) appear most advantageous regarding maintenance of tissue oxygenation during progressive anemia. The underlying mechanism includes a lower degree of extravasation and favourable effects on microcirculatory function.
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The C-MAC video laryngoscope substantially reduced poor glottic views and increased intubation success in ICU patients with at least one predictor for difficult intubation. However, all video-assisted and optical intubation devices have different view angles, thus producing different images with particular distortion, and even experts in 'old-fashioned' airway management need a substantial level of training with a certain device before using it safely and successfully in critical situations and patients. Video laryngoscopes, regardless of a particular brand or device, cannot be used intuitively - they require expert skills and routines to be turned into a life-saving airway management tool.