Abstract
Lactate has a questionable reputation amongst professionals caring for patients with sepsis. The concern is partly justified, as lactate is indeed a sentinel marker of shock and poor prognosis in sepsis [1]. Traditionally, elevated serum lactate is synonymous of tissue hypoxia, in particular when associated with metabolic acidosis and frequently clinicians guide fluid resuscitation or inotrope/vasopressor use based on that premise [2]. The concept is based on the distinction between two types of glycolysis: aerobic and anaerobic (insufficient oxygen availability for mitochondrial ATP production), the latter being regarded as the main source of increased lactate [2, 3]. In this chapter, we argue that such a view of pathophysiology in sepsis is more a “habit of mind” then a real phenomenon and has limited clinical relevance [4]. We will argue that lactate is a crucial molecule in energy metabolism, acid base homeostasis and cellular signaling in sepsis largely independent of tissue oxygenation.
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Nalos, M., McLean, A.S., Tang, B. (2016). Myths and Facts Regarding Lactate in Sepsis. In: Vincent, JL. (eds) Annual Update in Intensive Care and Emergency Medicine 2016. Annual Update in Intensive Care and Emergency Medicine. Springer, Cham. https://doi.org/10.1007/978-3-319-27349-5_7
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DOI: https://doi.org/10.1007/978-3-319-27349-5_7
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