Diagnostic and Interventional Radiology
Neuroradiology - Original Article

Ruptured dissecting aneurysms arising from non-vertebral arteries of the posterior circulation: endovascular treatment perspective

1.

Department of Radiology, Ege University School of Medicine, İzmir, Turkey

2.

Department of Radiology, Pamukkale University School of Medicine, Denizli, Turkey

3.

Department of Radiology,Celal Bayar University School of Medicine, Manisa, Turkey

Diagn Interv Radiol 2009; 15: 159-165
Read: 632 Downloads: 554 Published: 03 September 2019

Abstract

PURPOSE
Most intracranial dissecting aneurysms involve the posterior circulation, and the intradural segment of the vertebral artery is affected in majority of these. The aim of this report is to summarize the results of endovascular treatment in patients with ruptured dissecting aneurysms of the non-vertebral posterior circulation.

 

MATERIALS AND METHODS
During the past six years, the medical records of 23 patients with subarachnoid hemorrhage related to dissecting aneurysm arising from non-vertebral arteries of the posterior circulation were reviewed retrospectively.

 

RESULTS
The locations of the aneurysms were as follows: seven in the posterior cerebral artery, five in the superior cerebellar artery, six in the basilar artery trunk, and five in the posterior inferior cerebellar artery. Two basilar artery aneurysms were treated in the chronic stage with stent-assisted coil embolization. In the remaining patients, the aneurysm was coiled with or without parent vessel occlusion in the acute stage. One patient re-bled and died 20 days after initial treatment. At follow- up, recanalization had occurred in two patients, whose aneurysms were re-embolized successfully. Overall, three patients had permanent neurological sequelae, two had transient neurological sequelae, and one patient died.

 

CONCLUSION
Embolization with or without parent artery occlusion is feasible with an acceptable morbidity and mortality rate in the treatment of dissecting aneurysms confined to non-vertebral arteries of the posterior circulation.

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EISSN 1305-3612