Introduction/purpose To present our result of endovascular treatment of type 4 spinal vascular malformations.
Materials and methods Retrospectively, we reviewed our data bank in the last 20 years. We found 12 patients had been diagnosed to have type 4 spinal vascular malformations (Perimedullary type). The clinical demography, treatment, and outcome were recorded and analyzed.
Results The age of diagnosis were ranging from 1 year to 65 years old. Eight of them were males. Slow progression of extremities weakness was the commonest presentation, and followed by non-specific symptoms such as tightness. Half of them were at cervical region while the others at thoracic. Multiple serpentine large flow void causing cord compression and cord edema were the commonest MR findings. Successful endovascular treatment with neurological improvement and no evidence of recurrence on long-term follow up in 9 of them. Two of them managed by surgical treatment. One patient failed endovascular approaching and received surgical treatment successfully. None of them downhill after treatment.
Conclusion Care analysis of MR imaging and making correct typing on diagnostic catheter angiography are important in the planning of management of type 4 spinal vascular malformations. Their outcome usually are good under appropriate management.
Disclosures H. Liu: None. C. Lin: None. C. Lee: None. Y. Wang: None.
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