eMedicine Specialties > Neurosurgery > Vascular
Vascular Malformations of the Spinal Cord: Follow-up
Updated: Sep 16, 2009
Outcome and Prognosis
Patient outcome is directly related to neurologic function at the time of the surgical intervention. Patients who are able to ambulate when treated tend to remain ambulatory and may increase their strength with physical therapy. Patients who do not have antigravity strength in the lower extremities before treatment are unlikely to regain neurologic function to the point of ambulation. Patients who present with bowel or bladder dysfunction have a limited return of neurologic function.
Diagnosing these lesions early and providing appropriate treatment is important if patients are to achieve an optimal neurologic outcome.
Future and Controversies
MRI should be the first diagnostic modality performed when a spinal vascular malformation is suspected. If a lesion is found, spinal angiography is considered the criterion standard for optimal analysis of the angioarchitectural features. Embolization with a liquid embolic agent is the first-choice treatment for type 2-4 malformations, whereas surgery may be a better option for type 1 malformations. The prognosis of these lesions seems better than previously thought, especially with advances in endovascular techniques and new embolic agents that offer a high success rate with low morbidity.
Further advances in endovascular and microneurosurgical techniques will be made in the future. Advances in endovascular techniques and equipment should include smaller and more navigable catheters that can be manipulated through tortuous anatomy. The use of noninvasive techniques, such as stereotactic spinal radiosurgery, is presently being investigated.
The authors and editors of eMedicine gratefully acknowledge the contributions of previous author Jennifer Malone, MD, to the development and writing of this article.
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References
Anson JA, Spetzler RF. Interventional neuroradiology for spinal pathology. Clin Neurosurg. 1992;39:388-417. [Medline].
Kendall BE, Loque V. Spinal epidural angiomatous malformations draining into intrathecal veins. Neuroradiology. 1977;13:181-189.
Veznedaroglu E, Nelson PK, Jabbour PM, Rosenwasser RH. Endovascular treatment of spinal cord arteriovenous malformations. Neurosurgery. Nov 2006;59(5 Suppl 3):S202-9; discussion S3-13. [Medline].
Clarke MJ, Patrick TA, White JB, et al. Spinal extradural arteriovenous malformations with parenchymal drainage: venous drainage variability and implications in clinical manifestations. Neurosurg Focus. Jan 2009;26(1):E5. [Medline].
Criscuolo GR, Oldfield EH, Doppman JL. Reversible acute and subacute myelopathy in patients with dural arteriovenous fistulas. Foix-Alajouanine syndrome reconsidered. J Neurosurg. Mar 1989;70(3):354-9. [Medline].
Kenning TJ, Deshaies EM, Adamo MA, Waldman JB, Boulos AS. Onyx embolization of a thoracolumbar perimedullary spinal arteriovenous fistula in an infant presenting with subarachnoid and intraventricular hemorrhage. J Neurosurg Pediatr. Mar 2009;3(3):211-4. [Medline].
Krauss WE. Vascular anatomy of the spinal cord. Neurosurg Clin N Am. Jan 1999;10(1):9-15. [Medline].
Morgan MK. Outcome from treatment for spinal arteriovenous malformation. Neurosurg Clin N Am. Jan 1999;10(1):113-9. [Medline].
Niimi Y, Berenstein A. Endovascular treatment of spinal vascular malformations. Neurosurg Clin N Am. Jan 1999;10(1):47-71. [Medline].
Niimi Y, Berenstein A, Setton A, Neophytides A. Embolization of spinal dural arteriovenous fistulae: results and follow-up. Neurosurgery. Apr 1997;40(4):675-82; discussion 682-3. [Medline].
Oldfield EH, Doppman JL. Spinal arteriovenous malformations. Clin Neurosurg. 1988;34:161-83. [Medline].
Rodesch G, Hurth M, Alvarez H, Ducot B, Tadie M, Lasjaunias P. Angio-architecture of spinal cord arteriovenous shunts at presentation. Clinical correlations in adults and children. The Bicêtre experience on 155 consecutive patients seen between 1981-1999. Acta Neurochir (Wien). Mar 2004;146(3):217-26; discussion 226-7. [Medline].
Song JK, Vinuela F, Gobin YP, et al. Surgical and endovascular treatment of spinal dural arteriovenous fistulas: long-term disability assessment and prognostic factors. J Neurosurg. Apr 2001;94(2 Suppl):199-204. [Medline].
Symon L, Kuyama H, Kendall B. Dural arteriovenous malformations of the spine. Clinical features and surgical results in 55 cases. J Neurosurg. Feb 1984;60(2):238-47. [Medline].
Watson JC, Oldfield EH. The surgical management of spinal dural vascular malformations. Neurosurg Clin N Am. Jan 1999;10(1):73-87. [Medline].
Yamaguchi S, Eguchi K, Kiura Y, Takeda M, Nagayama T, Uchida H, et al. Multi-detector-row CT angiography as a preoperative evaluation for spinal arteriovenous fistulae. Neurosurg Rev. Oct 2007;30(4):321-6; discussion 327. [Medline].
Further Reading
Keywords
vascular malformations of the spinal cord, spinal cord vascular malformations, arterial venous malformations of the spinal cord, arterial venous fistulas of the spinal cord, dural spinal arterial venous fistula, AVF, dural spinal arterial venous malformation, AVM, spinal cord malformation, spinal cord deformity, arteriovenous malformation, arteriovenous fistula, spinal arteriovenous malformation, spinal arteriovenous fistula, glomus AVM, spinal vascular malformation, spinal dural fistula, intradural AVM, dural AVF
Follow-up: Vascular Malformations of the Spinal Cord