Management of Thrombocytopenia in Sepsis

Platelet Transfusion Thresholds

The American College of Critical Care Medicine recommends no prophylactic platelet transfusion for patients with sepsis and a platelet count between 20,000-50,000/μL in the absence of significant bleeding risk 1, 3
Prophylactic platelet transfusion is indicated for patients with sepsis and a platelet count <10,000/μL with no apparent bleeding, or <20,000/μL with significant bleeding risk 1, 2, 3, 4
Higher platelet counts (≥50,000/μL) should be maintained for patients with sepsis and active bleeding, or those undergoing planned surgery or invasive procedures 1, 2, 3, 4

The Society of Critical Care Medicine suggests assessing bleeding risk and the need for procedures in patients with sepsis and thrombocytopenia, and evaluating for active bleeding or planned invasive procedures 1, 3
For patients with sepsis, a platelet count of 40,000/μL, and no active bleeding or planned procedures, no prophylactic platelet transfusion is needed 1, 2
If active bleeding is present, platelets should be transfused to achieve a count ≥50,000/μL 3, 4
If surgery or an invasive procedure is needed, platelets should be transfused to achieve a count ≥50,000/μL before the procedure 1, 2

The Intensive Care Medicine society recommends avoiding unnecessary platelet transfusions, as they carry risks including transfusion reactions, alloimmunization, and infection transmission 3
The Critical Care Medicine society strongly recommends against using antithrombin for treatment of sepsis and septic shock 1, 3
The Critical Care Medicine society recommends against using fresh frozen plasma to correct laboratory clotting abnormalities in the absence of bleeding or planned invasive procedures 1, 2