Abstract
Despite the dissemination of innovative, molecular biology-based and commercially available devices for pathogen detection, culture-based methods with susceptibility testing remain the key principles for guiding antimicrobial treatment of patients suffering from sepsis or septic shock on the ICU. Culture-based methods are able to facilitate pathogen detection from a diversity of specimen (respiratory secretion, intraoperatively obtained smears, aspirates, and so forth). However, the latency from obtainment of the specimen up to pathogen detection with susceptibility testing is a major disadvantage of culture-based methods in critical illness. Molecular biology-based methods like Polymerase Chain Reaction (PCR) and especially Next-Generation Sequencing (NGS) based methods promise faster pathogen and resistance detection, but are not used in clinical routine yet. With more clinical trials to come, these innovative diagnostic tools may have the potential to lead to a paradigm shift within the context of pathogen identification in sepsis.
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