[Blood Transfusion: a Guide to Clinical Decision Making]

Area of Science:

• Transfusion Medicine
• Clinical Hematology

Background:

• Hemotherapy management in Germany is governed by the Transfusion Act and guidelines.
• Physicians are responsible for bedside implementation, considering patient clinical status and comorbidities.
• Evidence-based transfusion thresholds for perioperative packed red blood cell concentrates (RBC) are established.

Purpose of the Study:

• To outline current guidelines and indications for blood product transfusion.
• To detail appropriate use of RBC, platelet concentrates (PC), and fresh frozen plasma (FFP).
• To highlight management of massive transfusion and prevention of adverse transfusion reactions.

Main Methods:

• Review of current German transfusion regulations and clinical guidelines.
• Description of indications for packed red blood cells, platelet concentrates, and fresh frozen plasma.
• Discussion of adverse transfusion reactions and their causes, emphasizing wrong blood in tube (WBIT).

Main Results:

• Packed red blood cell (RBC) transfusion thresholds are defined for perioperative settings.
• Platelet concentrates (PC) are indicated for bleeding patients with thrombocytopenia or prophylactically if platelet count is <10/nl.
• Fresh frozen plasma (FFP) is crucial for massive transfusion and specific conditions like TTP/HUS or factor deficiencies.

Conclusions:

• Adherence to transfusion guidelines ensures appropriate blood product utilization.
• Proactive management is essential for massive transfusion scenarios.
• Preventing adverse reactions, particularly hemolytic events, requires meticulous attention to procedures like blood sampling and component handling.