scholarly journals Posterior Inferior Cerebellar Artery Aneurysm associated with Fenestration of the Vertebral Artery

1989 ◽  
Vol 29 (1) ◽  
pp. 29-31 ◽  
Author(s):  
Kenji ARAI ◽  
Shunro ENDO ◽  
Yutaka HIRASHIMA ◽  
Akira TAKAKU
Keyword(s):  
Vertebral Artery ◽  
Posterior Inferior Cerebellar Artery ◽  
Artery Aneurysm ◽  
Cerebellar Artery

scholarly journals Neurosurgery (Neuro Interventional)

2015 ◽  
Vol 42 (S1) ◽  
pp. S43-S44
Author(s):  
JJ Shankar ◽  
L Hodgson
Keyword(s):  
Vertebral Artery ◽  
Retrospective Analysis ◽  
Posterior Inferior Cerebellar Artery ◽  
Artery Aneurysm ◽  
The Third ◽  
Cerebellar Artery ◽  
Incomplete Coverage ◽  
Negative Findings ◽  
The Right

Purpose: CTA is becoming the frontline modality to reveal aneurysms in patients with SAH. However, in about 20% of SAH patients no aneurysm is found. In these cases, intra-arterial DSA is still performed. Our aim was to evaluate whether negative findings on CTA can reliably exclude aneurysms in patients with acute SAH. Materials and Method: We conducted a retrospective analysis of all DSA performed from August 2010 to July 2014 in patients with various indications. We selected patient who presented with SAH and had a negative CTA. Findings of the CTA were compared with DSA. Results: 857 DSA were performed during the study period. 51(5.95%) patients with SAH and negative findings on CTA who underwent subsequent DSA were identified. Of these, only 3(5.9%) of patients had positive findings on the DSA. One patient had a posterior inferior cerebellar artery aneurysm on the DSA, not seen on CTA due to the incomplete coverage of the head. Second patient’ CTA did not show any evidence of aneurysm. DSA showed suspicious dissection of the right vertebral artery, potentially iatrogenic. The third patient’s DSA showed suspicious tiny protuberance from left ICA, possibly infundibulum. Conclusion: In patients with SAH, negative CTA findings are reliable in ruling out aneurysms in any pattern of SAH on CT.

Combined surgical and endovascular treatment of a giant vertebral artery aneurysm in a child

1994 ◽  
Vol 81 (2) ◽  
pp. 304-307 ◽  
Author(s):  
Mazen H. Khayata ◽  
Robert F. Spetzler ◽  
Jan J. A. Mooy ◽  
James M. Herman ◽  
Harold L. Rekate
Keyword(s):  
Vertebral Artery ◽  
Posterior Inferior Cerebellar Artery ◽  
Artery Aneurysm ◽  
Mass Effect ◽  
Left Vertebral Artery ◽  
Parent Artery ◽  
Content Type ◽  
Cerebellar Artery ◽  
Coil Occlusion ◽  
Surgical Bypass

✓ The case is presented of a 5-year-old child who suffered a subarachnoid hemorrhage from a giant left vertebral artery-posterior inferior cerebellar artery (PICA) aneurysm. Initial treatment consisted of surgical occlusion of the parent vertebral artery combined with a PICA-to-PICA bypass. Because of persistent filling of the aneurysm, the left PICA was occluded at its takeoff from the aneurysm. Endovascular coil occlusion of the aneurysm and the distal left vertebral artery enabled complete elimination of the aneurysm. Follow-up magnetic resonance imaging and arteriography performed 6 months postoperatively showed persistent occlusion and elimination of the mass effect. Combined surgical bypass and endovascular occlusion of the parent artery may be a useful adjunct in the management of these aneurysms.

scholarly journals Using the Snare System to Cross the Acute-Angled Vertebrobasilar Junction in Treating Posterior Inferior Cerebellar Artery Aneurysm with the Stent-Assisted Method via a Retrograde Approach

2014 ◽  
Vol 20 (4) ◽  
pp. 418-423 ◽  
Author(s):  
Hee Sup Shin ◽  
Chang-Woo Ryu ◽  
Jun Seok Koh ◽  
Seung Hwan Lee
Keyword(s):  
Vertebral Artery ◽  
Effective Treatment ◽  
Basilar Artery ◽  
Guide Wire ◽  
Posterior Inferior Cerebellar Artery ◽  
Artery Aneurysm ◽  
Retrograde Approach ◽  
Cerebellar Artery ◽  
Vertebrobasilar Junction ◽  
Pass Through

Retrograde stenting via the contralateral vertebral artery (VA) is a safe and effective treatment for posterior inferior cerebellar artery (PICA) aneurysm. Many methods, including tip shaping and the looping technique, have been attempted as ways to cross the vertebrobasilar (VB) junction. Here, we introduce an alternative method using a Snare system to overcome the acute-angled VB junction after repeated failures using other techniques. The Snare system was navigated to the proximal basilar artery via the ipsilateral VA. A guide-wire was introduced in the contralateral VA and gently advanced to the basilar artery in order to pass through the loop of the Snare system. Following this, the Snare system caught the guide-wire and it was very carefully pulled down to the ipsilateral VA crossing the VB junction. We suggest this technique as a method to cross the acute-angled VB junction after failure of all other attempts to overcome this challenge.

scholarly journals Distal posterior inferior cerebellar artery aneurysm: case report

2005 ◽  
Vol 63 (2a) ◽  
pp. 335-338 ◽  
Author(s):  
Ricardo Ramina ◽  
Viviane Aline Buffon ◽  
Jerônimo Buzetti Milano ◽  
Erasmo Barros da Silva Jr ◽  
Kelly Cristina Bordignon
Keyword(s):  
Case Report ◽  
Vertebral Artery ◽  
Computerized Tomography ◽  
Intraventricular Hemorrhage ◽  
Posterior Inferior Cerebellar Artery ◽  
Artery Aneurysm ◽  
Subarachnoidal Hemorrhage ◽  
Cerebellar Artery ◽  
Clinical Series ◽  
Pica Aneurysms

The majority of posterior inferior cerebellar artery (PICA) aneurysms are usually found on the bifurcation of the vertebral artery (VA) - PICA junction. Aneurysms arising from more peripheral PICA segments named distal PICA aneurysm are uncommon. The major clinical manifestation is that of an intracranial bleeding and the site of hemorrhage is related to the PICA segment originating the aneurysm. Lesions originating from distal PICA segments, particularly those arising from the telovelotonsillar segment, are associated with hemorrhage extending into the ventricular system, mainly the IV ventricle. A case of a 50-year-old woman with sudden headaches and vomiting, and intraventricular hemorrhage (four ventricles) caused by an aneurysm of the telovelotonsillar segment of the PICA, is presented. No signs of subarachnoidal hemorrhage were found in the computerized tomography. The aneurysm was clipped and the patient presented a favorable outcome. Anatomical aspects and clinical series are reviewed.

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