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Dural sinus compartment in dural arteriovenous shunts: a new angioarchitectural feature allowing superselective transvenous dural sinus occlusion treatment.

作者信息

Piske Ronie Leo, Campos Christiane Monteiro Siqueira, Chaves Jacinto B L, Abicalaf Ricardo, Dabus Guilherme, Batista Laecio Leitao, Baccin Carlos, Lima Sergio Santos

机构信息

Department of Interventional Neuroradiology, Med Imagem, Hospital Beneficencia Portuguesa de São Paulo, São Paulo, SP, Brazil.

出版信息

AJNR Am J Neuroradiol. 2005 Aug;26(7):1715-22.

Abstract

BACKGROUND AND PURPOSE

The dural sinus occlusion has been shown to be effective in the treatment of some dural arteriovenous shunts (DAVS). No long-term results are available, however, regarding the significance of occlusion of a dural sinus. If the disease will stop or if other events will occur later in the remaining sinuses are not well known yet. Careful analyses of our cases led us to discover that, in some instances, the shunt involves only a single portion or compartment of a sinus. In this report, we describe our results in the treatment of these lesions: occluding only the involved compartment while preserving patency of the remainder of the sinus and the angiographic signals, thus allowing diagnosis of the presence of a compartment.

METHODS AND RESULTS

From 1996 to October 2002, we found 12 cases of DAVS (among 40 news cases of DAVS) with two types of compartments--one inside the sinus, which we call "septation" (nine cases), and the other outside the sinus, which we call "accessory sinus" (three cases). It was possible to occlude completely the lesion superselectively in nine cases. In two cases, it was necessary to occlude the entire sinus secondarily, and in one case the sinus was occluded because was impossible to catheterize the septation. Two cases with recanalization on the control were treated by additional arterial and arterial and venous approach.

CONCLUSION

It is very important to diagnose the presence of a compartment in dural arteriovenous shunts during the diagnostic angiography. In most cases, it allows curative treatment of the lesion by occluding only the compartment while preserving patency of the remainder of the sinus.

摘要

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