ROTEM Testing
ROTEM (Rotational Thromboelastometry) testing is a diagnostic tool used to assess the coagulation status of a patient’s blood in real time. It provides detailed information on clot formation, stability, and dissolution by measuring the viscoelastic properties of blood clots. This is particularly useful in managing bleeding disorders, guiding transfusion therapy, and monitoring coagulation during surgeries.
Procedure
- Sample Collection: Blood is drawn from the patient and placed in a ROTEM machine.
- Measurement: The sample is subjected to rotational forces, and the machine measures the changes in clot strength over time.
- Parameters Assessed:
- Clotting Time (CT): Time taken for initial fibrin formation.
- Clot Formation Time (CFT): Time taken for the clot to reach a certain strength.
- Maximum Clot Firmness (MCF): The peak strength of the clot.
- Lysis Index: Percentage of clot stability over time.
Clinical Applications
- Bleeding Disorders: Identifying specific coagulation deficits (e.g., fibrinogen deficiency, platelet dysfunction).
- Surgical Management: Guiding transfusion strategies during and after surgeries, particularly in trauma, cardiac, and liver surgeries.
- Critical Care: Monitoring coagulation status in patients with sepsis or severe bleeding.
Conclusion
ROTAM testing is a critical tool in modern medicine for real-time assessment of coagulation status, enabling precise and effective management of bleeding and clotting disorders.