... support.Authors’ contributionsFS contributed to conceiving the study, acquiring and managing the data,analyzing the data and interpreting the results, drafting and revising the manuscript, and approving the ... analysis, acquiring and managing the data, revising the manuscript, and approving the manuscript in its final form. RT contributedto analyzing the data and interpreting the results, revising the manuscript, and ... was to study the effect of RBC transfusion on microvascular variables in severe septic patients using both NIRS and SDF. The effects of RBC transfusion on the microcircula-tion in sepsis could...