Abstract
The impact of prehospital intravenous infusion on patients in shock with internal illness remains unclear within the West Mikawa Medical Region.This study was conducted to clarify the effects of prehospital intravenous infusion in these patients.We extracted patients in shock with internal illness from the Anjo Kosei Hospital Emergency and Critical Care Center database.We compared the Shock Index(SI)before and after ambulance transport.Additionally,we investigated the relationship between total prehospital intravenous infusion volume and changes in SI.SI was classified into four categories:<1,≥1 but<1.5,≥1.5 but<2,and≥2 or higher.Among the 249 patients,238(95.6%)had SI values that were maintained or improved after infusion compared with before infusion.The optimal prehospital total intravenous infusion volume cutoff for predicting maintenance or deterioration of SI was approximately 260 mL.The SI maintenance rates for prehospital fluid administration in hypovolemic shock and redistributive shock were 94.9%and 96.4%,respectively.Prehospital fluid infusion for patients with endogenous shock maintained or improved SI at the time of hospital arrival in approximately 95%of cases.The cutoff value for total prehospital intravenous infusion to maintain or improve systemic circulation in patients who received intravenous infusion during ambulance transport was approximately 260 mL.
