Summary
Venous thromboembolism (VTE) is a frequent complication in the acute setting after
spinal cord injury (SCI). Less is known about the long-term risk of VTE in these patients.
It was the aim of this study to prospectively evaluate the short- and long-term risk
of VTE in a cohort of patients after acute SCI and during rehabilitation and post-rehabilitation
follow-up period. From January 2003 to November 2007 all consecutive adult patients
admitted to a Spinal Rehabilitation Unit (RU) after surgical treatment in three Neurosurgical
Units for SCI, were enrolled. After an accurate evaluation of their neurosurgical
medical records the patients were prospectively evaluated for VTE occurrence. Ninety-four
patients (80 males; mean age 40.3 years, SD 15.9) were recruited. All the patients
received thromboprophylaxis with low-molecular-weight heparin combined with compressive
stockings during hospitalization (median duration 7 months, IQR 4.5–8.8). Over a median
follow-up period of 36.3 months (IQR 4.4–48) after SCI, VTE was diagnosed in 22 patients
(23.4%) The majority of VTE events were recorded during the first three months of
follow-up (34.4 VTE events/100 patient-years in the first 3 months and 0.3 VTE events/100
patient-years thereafter); age over 45 years (HR 8.4, 95% CI 3–23.5), previous VTE
(HR 6.0, 95% CI 1.6–23.3) and paraplegia (HR 4.7, 95% CI 1.6–13.7) were independently
associated with the occurrence of VTE. In conclusion, the risk of VTE in patients
suffering from SCI is high despite the use of thromboprophylaxis, in particular in
some patients categories. However, this risk appears to be limited to the first 3
months after the index event.
Keywords
Long-term risk of VTE - deep-vein thrombosis - spinal cord injury