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Background In the US, Staphylococcus aureus Bacteremia (SAB) occurs in about 19.7 /100,000 people. A recent increase in methicillin-resistant Staphylococcus aureus (MRSA) bacteremia infections rate and mortality has led to more infectious diseases (ID) consultations. We assessed if an infectious diseases consultation within 7 days of initial blood culture results was associated to greater compliance with Infectious Diseases Society of America (IDSA) guidelines for managing Staphylococcus aureus bacteremia and a decrease in all-cause mortality and relapse within 90 days. Methods A retrospective cohort of patients admitted to two community hospitals from January 2014 to June 2016 with a positive blood culture for methicillin-susceptible S. aureus (MSSA), MRSA, or coagulase-negative Staphylococcus were included in the study. I. Patients were excluded if they were immunocompromised, had a polymicrobial blood stream infection, died within first 48 hours of admission, left against medical advice during treatment or participated in another study requiring an alternative treatment strategy. Results A total of 331 patients were included in the analysis. A significantly higher proportion of patients with complicated SAB had an ID consult (61% vs. 17.5%, p&amp;lt; .0001) and for uncomplicated SAB the reverse was true (39% vs 79%, P&amp;lt; .0001). An ID consult was associated with increased compliance with IDSA guidelines (75% vs. 5%, p&amp;lt; .0001). Patients with an ID consult had a significantly higher duration of antibiotic treatment [30(14-42) vs. 5(1.5-12), p&amp;lt; .0001], an earlier start of treatment in number of days [0(0-7) vs. 0(0-12), p=0.036] and a lower mortality within 90 days of blood culture (61% vs. 17.5%, p&amp;lt; .0001). Logistic regression model showed than an ID consult reduced 90-day mortality by 69%, OR 0.313[CI 95 %(0.313-0.154), p=0.001] and transesophageal echography by 78%, OR 0.228[CI 95 %(0.228-0.052), p=0.05]. Population characteristics and outcomes Conclusion ID consultation in the setting of SAB has been shown to increase compliance with IDSA guidelines and reduce 90-day mortality. Disclosures All Authors: No reported disclosures

851. Compliance with Guidelines for Management of Staphylococcus aureus Bacteremia and its Effect on Mortality