Several expert systems were developed for assessment of community-acquired pneumonia (CAP) and its severity in individua patients. Scoring systems PSI, CURB-65, and CRB-65 are widely used.
They were primarily designed for easier decision on need of CAP patients hospitalization. Newer scoring systems evaluate especially severity of CAP and need of intensive care.
This group of systems comprise ATS/IDSA recommendations, CURXO-8O, SMART-COP, and SMRT-CO. The last one appears to be the most appropriate for common practice but more studies are necessary to confirm this opinion.
Regardless of the scoring systems the authors recommend more extensive usage of pulse oxymetry in the care of CAP patients.