Thrombosis in spinal cord injury

Area of Science:

• Thrombosis and hemostasis research
• Clinical investigation of spinal cord injury complications

Background:

• Deep vein thrombosis (DVT) is a significant risk following spinal cord injury (SCI).
• Understanding hemostatic activation markers in SCI patients is crucial for early DVT detection.

Purpose of the Study:

• To evaluate traditional coagulation assays and novel molecular markers of hemostatic activation in SCI patients.
• To determine the incidence and predictors of DVT in SCI.

Main Methods:

• Measurement of coagulation assays and molecular markers in 37 SCI patients.
• Diagnosis of DVT using the radiofibrinogen uptake test (RFUT).
• Comparison of marker levels between patients with and without DVT.

Main Results:

• DVT developed in 57% of SCI patients; incidence was higher in paraplegic (88%) vs. quadriplegic (38%) patients.
• No significant differences in platelet counts or standard coagulation factors between DVT+ and DVT- groups.
• Elevated Fibrinopeptide A, thrombin/antithrombin III (TAT) complexes, and D-dimer levels were associated with DVT.
• TAT complexes were elevated up to 3 days prior to positive RFUT; D-dimer peaked post-diagnosis.

Conclusions:

• Molecular markers, particularly TAT complexes, show promise for early DVT detection in SCI patients.
• Standard coagulation tests are less effective in identifying DVT risk in this population.
• Paraplegia is a significant risk factor for DVT development post-SCI.