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Spontaneous Arterial Dissection
1*Department of Neurology, University of Heidelberg, Im Neuenheimer Feld 400, D-69120 Heidelberg, Germany. T.Brandt@Kliniken-Schmieder.de
Insights
Current cervico-cerebral artery dissection (CAD) management lacks controlled studies. Initial treatment involves heparin then warfarin, with surgery rarely indicated. Doppler sonography guides anticoagulation duration, and pseudoaneurysms require no specific treatment.
Area of Science:
- Vascular Neurology
- Interventional Neuroradiology
- Cerebrovascular Diseases
Background:
- Cervico-cerebral artery dissection (CAD) management lacks evidence-based guidelines.
- Current empiric treatment involves anticoagulation to prevent embolism.
- Surgical intervention is generally not recommended for CAD.
Purpose of the Study:
- To review current management strategies for cervico-cerebral artery dissection.
- To provide guidance on anticoagulation, surgical intervention, and follow-up.
- To highlight the role of Doppler sonography in CAD management.
Main Methods:
- Review of existing literature and clinical practices for cervico-cerebral artery dissection.
- Analysis of treatment outcomes for anticoagulation and interventional procedures.
- Evaluation of diagnostic methods, including Doppler sonography.
Main Results:
- Empiric treatment typically involves PTT-guided heparin followed by warfarin.
- Carotid angioplasty with stenting may be considered for severe hemodynamic impairment.
- Doppler sonography guides anticoagulation duration until blood flow normalizes or for at least 1 year post-occlusion.
Conclusions:
- Anticoagulation is the primary treatment for acute CAD, with duration guided by Doppler sonography.
- Surgical intervention is reserved for rare cases of severe stenosis; angioplasty/stenting for specific hemodynamic issues.
- Pseudoaneurysms do not appear to increase embolic risk, and caution is advised for activities with excessive head movements.
Abstract:
There is no controlled study for the best treatment or management of cervico-cerebral artery dissection (CAD). Rationale initial empiric treatment in acute CAD to prevent secondary embolism is partial thromboplastin time (PTT)-guided anticoagulation by intravenous heparin followed by anticoagulation with warfarin. Carotid surgery for treatment of CAD is not recommended anymore with the possible exception of persisting severe stenosis of the proximal internal carotid artery (ICA). There could be use of carotid angioplasty by balloon dilatation and stenting in selected cases of severe cerebral hemodynamic impairment by bilateral CAD. Duration of secondary prophylaxis by anticoagulation is best guided by Doppler sonography follow-up, and should be continued until normalization of blood flow or until at least 1 year after the vessel is occluded. There is no evidence that pseudoaneurysms increase the risk for embolic complication, and there is no evidence for surgery or continuation of anticoagulation in patients with pseudoaneurysms. Caution should be recommended for exercises that involve excessive head movements (eg, bungee jumping, trampoline jumping, and chiropractic maneuvers). The patient should be informed that recurrent rate is low in nonfamilial cases. Doppler sonography is a low-cost and high-sensitivity method for patients at risk.