Abstract
Biomarkers complement other clinical information by proving quantitative data regarding a pathophysiological mechanism that can be used for the early diagnosis of a specific disease, to monitor and guide treatment, and to predict the risk of death or other adverse events. The stronger the link between the information provided by the biomarker and the immediate clinical course of action that we physicians take in response, the higher the clinical utility of the biomarker. This link is weakest for prognostic biomarkers applied in patients with a wide variety of diseases, such as in unselected intensive care unit (ICU) patients. Although the added value on top of current ICU mortality scores seems to be too low to justify clinical use, the observation that hemodynamic cardiac stress and inflammation are present in multiple conditions provides important insights into the pathophysiology of common disorders in the ICU.
Highlights
Biomarkers complement other clinical information by proving quantitative data regarding a pathophysiological mechanism that can be used for the early diagnosis of a specific disease, to monitor and guide treatment, and to predict the risk of death or other adverse events
In the previous issue of Critical Care, Wang and colleagues [1] present interesting data from a large cohort of unselected medical intensive care unit (ICU) patients which examined the prognostic utility of two wellestablished biomarkers: N-terminal pro-brain natriuretic peptide (NT-proBNP) and C-reactive protein (CRP)
In most patients being admitted to an ICU, the diagnosis is made prior to ICU admission, most commonly in the emergency department (ED)
Summary
Biomarkers complement other clinical information by proving quantitative data regarding a pathophysiological mechanism that can be used for the early diagnosis of a specific disease, to monitor and guide treatment, and to predict the risk of death or other adverse events. In the previous issue of Critical Care, Wang and colleagues [1] present interesting data from a large cohort of unselected medical intensive care unit (ICU) patients which examined the prognostic utility of two wellestablished biomarkers: N-terminal pro-brain natriuretic peptide (NT-proBNP) and C-reactive protein (CRP). Biomarkers complement other clinical information by proving quantitative data regarding a pathophysiological mechanism that can be used for the early diagnosis of a
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