Yes. A cerebrovascular accident (cva) means that a blood vessel in the brain has had something happen to it and a stroke (cva). Blood vessels are arteries and veins. Although we usually think of a cva as being due to a blocked artery or a bleeding artery in the brain, a vein can have a thrombosis and become blocked and cause a cva too.
Yes. Thrombosis of the venous channels in the brain is an uncommon cause of cerebral infarction relative to arterial disease, but it is an important consideration because of its potential morbidity.
Cortical venous. Thrombosis may cause a stroke, but cva typically used to refer to arterial stroke.
CVA. A cerebrovascular accident (cva) can technically inivolve any blood vessel (vascular) in the brain (cerebro). In that sense, a cortical venous thrombosis or clot is a cva. But, as dr. Korona said, we usually think of cvas as involving arteries and not veins.
It can. If it causes regional brain death. That is not always the case.
Absolutely. Cvt manifests itself with migraine headaches, seizures, and store like symptoms of weakness. Mri, ct scans of the brain is helpful in making the diagnosis early, and treatment such as thrombolysis, anticoagulation considered.
Extension and Bleed. Medications are used to prevent propagation of the clot to more extensive areas of the cerebral venous system. Studies indicate a tendency toward better outcome in patients treated with anticoagulant therapy than in those who are not treated with anticoagulants. In einhaupl's study, even patients with cerebral hemorrhage appeared to benefit from anticoagulation. Risks are for hemorrhage or stroke.
Several complication. Cerebral vein thrombosis can lead to brain swelling, bleeding, and further impairment of brain function.
Perhaps. Time is of the essence. Early treatment may control and reverse most, if not all of the neurological signs, but delay may result in areas of stroke. The residual deficits may respond to neuro-rehabilitation.
Possibly. There are variable causes, and treatment such as anticoagulation may often reverse most if not all of the deficit. The outcome is best when there is immediate diagnosis and treatment. A delay of even a few days could result in permanent and significant disability.
Yes but not a given. Early diagnosis and treatment of cvt involves anticoagulants like heparin, and in the earliest diagnosed cases, intravenous recombinant tissue-type plasminogen activator (rt-pa) must be administered within 3 hours of symptom onset. Doing this can dissolve the clot and allow full return of venous flow with no residual effects, provided the patient is not at too great a risk for massive hemorrhage.
Woud you please discuss the complications that can arise in the treatment of cortical venous thrombosis?
Risk of bleeding. Anticoagulation, with Coumadin or Heparin or several newer agents, is the main treatment for clots. Older people especially have a risk of bleeding while on these, so a fall should be evaluated for a hematoma on the brain. Other risks: because it lowers vitamin k, Coumadin therapy increases the risk of arterial calcification & heart valve calcification, especially if too much vitamin d is present.