Arteriovenous Malformations In The Spinal Cord (Avms)

Arteriovenous malformations (AVM) in or around the spinal cord can cause spinal cord compression, ischemia, subarachnoid hemorrhages and parenchymal or a combination thereof. Symptoms may include: gradually progressive, ascending or alternately pronounced segmental neurological disorder, radicular pain and sudden back pain with sudden onset of segmental neurologic deficits. The diagnosis is made by an MRI. The treatment is surgery or stereotactic radiosurgery and may include an angiographic embolization.

(See also overview of diseases of the spinal cord.)

Arteriovenous malformations (AVM) in or around the spinal cord can cause spinal cord compression, ischemia, subarachnoid hemorrhages and parenchymal or a combination thereof. Symptoms may include: gradually progressive, ascending or alternately pronounced segmental neurological disorder, radicular pain and sudden back pain with sudden onset of segmental neurologic deficits. The diagnosis is made by an MRI. The treatment is surgery or stereotactic radiosurgery and may include an angiographic embolization. (See also overview of diseases of the spinal cord.) AVM are the most common spinal vascular malformations. Most are throrakolumbal, posterior and outside of the spinal cord (extramedullary). The rest are cervical or located in the upper thoracic region, and are often in the spinal cord (intramedullary). AVM may be small and localized, or the spinal cord affect up to half. You can compress the normal Rückenmarkparenchym or even replace it, or they can rupture and cause focal or generalized bleeding. Symptoms and signs A cutaneous angioma is sometimes a spinal AVM: AVM often compress nerve roots, causing pain radiating down into the innervation of a nerve root (radicular pain) The spinal cord, causing segmental neurologic deficits due to which progress gradually or alternately stronger and weaker often are combined disorders of the upper and lower motor neuron before. AVM can rupture into the Rückenmarkparenchym and cause a sudden onset of severe back pain and sudden segmental neurologic deficits. Rarely rupture high cervical AVM into the subarachnoid space and cause subarachnoid hemorrhage with sudden and severe headache, neck stiffness and impaired consciousness. Diagnostic Imaging techniques AVM in the spinal cord can be discovered by chance during imaging. AVM can be drawn clinically in patients with unexplained segmental neurologic deficits or subarachnoid hemorrhage into consideration, especially in patients with sudden, severe back pain or cutaneous Mittellinienangiomen. The diagnosis of AVMs is based on an MRI (which is carried out usually first), then a magnetic resonance angiography, and finally a selective angiography detected. Occasionally, a myelography with CT is used. Treatment surgery if spinal cord function is compromised surgical measures are indicated if the spinal cord function is threatened, however, an expertise for specialized micro technologies is necessary for it. Stereotactic radiosurgery is helpful if the AVM is small and is located on a surgically inaccessible location. Angiographic embolization closes the feeding arteries and is often preceded by surgical removal or stereotactic radiosurgery measure.

Health Life Media Team

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