Association between prehospital ROX index with 30-day mortality among septic shock.

Purpose: Respiratory dysfunction is one of the most frequent symptoms observed during sepsis reflecting hypoxemia and/or acidosis that may be assessed by the ROX index (ratio of oxygen saturation by pulse oximetry/fraction of inspired oxygen to respiratory rate). This study aimed to describe the relationship between the prehospital ROX index and 30-day mortality rate among septic shock patients cared for in the prehospital setting by a mobile intensive care unit (MICU).

Methods: From May 2016 to December 2021, 530 septic shock patients cared for by a prehospital MICU were retrospectively analysed.