Stent-assisted coil embolization for an unruptured vertebral artery–posterior inferior cerebellar artery aneurysm with retrograde access via type 1 persistent primitive proatlantal artery: A case report

2020 ◽  
pp. 159101992097384
Author(s):  
Yasuhiko Nariai ◽  
Tomoji Takigawa ◽  
Ryotaro Suzuki ◽  
Akio Hyodo ◽  
Kensuke Suzuki
Keyword(s):  
Carotid Artery ◽  
Vertebral Artery ◽  
Coil Embolization ◽  
Posterior Inferior Cerebellar Artery ◽  
External Carotid ◽  
Proatlantal Artery ◽  
Cerebellar Artery ◽  
The Right ◽  
Pica Aneurysms

Vertebral artery (VA)-posterior inferior cerebellar artery (PICA) aneurysms are rare lesions that are difficult to treat with both endovascular and surgical techniques. Tight angulation of the PICA from VA may make access to the PICA difficult from ipsilateral VA if adjunctive techniques are needed. Recently, the safety and efficacy of retrograde access have been reported. We report a case of endovascular treatment for a VA-PICA aneurysm with a stent-assisted technique using retrograde access via contralateral persistent primitive proatlantal artery (PPA). The patient was a 76-year-old woman with an unruptured VA-PICA aneurysm on the dominant VA side. Coil embolization with a stent-assisted technique using retrograde access seemed appropriate. However, the origin of the left VA was not confirmed. Left common carotid artery angiography demonstrated that the PPA (type 1) branching from external carotid artery joined the VA V4 segment. Retrograde access via the PPA for stenting was performed. A microcatheter for stenting was retrogradely advanced to the right PICA at ease. After deploying the stent, coil insertion was completed from the right VA, and the final angiogram showed adequate occlusion of the aneurysm with preservation of the PICA. Thus, PPA may be an approach route in the treatment of VA-PICA aneurysms with unconfirmed contralateral VA orifice and apparent PPA on angiography, when retrograde access is needed.

Vertebral Artery Disease

Neurosurgery ◽  
1981 ◽  
Vol 9 (5) ◽  
pp. 524-530 ◽  
Author(s):  
Michael B. Pritz ◽  
William F. Chandler ◽  
Glenn W. Kindt
Keyword(s):  
Carotid Artery ◽  
Vertebral Artery ◽  
Medical Management ◽  
Posterior Inferior Cerebellar Artery ◽  
External Carotid Artery ◽  
The Other ◽  
External Carotid ◽  
Occipital Artery ◽  
Cerebellar Artery ◽  
Artery Disease

Abstract The neuroradiological evaluation, perioperative medical management, and microsurgical treatment of variously located vertebral artery lesions are presented. Four types of surgical procedures were undertaken: proximal vertebral artery to common carotid artery end-to-side anastomosis; external carotid artery to midcervical vertebral artery end-to-side anastomosis; external carotid artery to distal cervical vertebral artery end-to-end anastomosis; and occipital artery to posterior inferior cerebellar artery end-to-side anastomosis. Each case is used to demonstrate the evaluation and management involved, the type of and rationale for the surgical procedure selected, and the patency of the anastomosis performed. Two points are emphasized. One is that, after careful angiographic evaluation and improved perioperative medical management, lesions of the vertebral artery are indeed amenable to microsurgical intervention with relatively low risk to the patient. The other is that, whenever possible, anastomosis of the largest caliber of vessels with the least number of suture lines is the surgical treatment of choice.

scholarly journals Contralateral far-lateral approach for clipping of a ruptured vertebral artery–posterior inferior cerebellar artery aneurysm

2008 ◽  
Vol 25 (6) ◽  
pp. E9 ◽  
Author(s):  
Taryn McFadden Bragg ◽  
Edward A. M. Duckworth
Keyword(s):  
Computed Tomography ◽  
Vertebral Artery ◽  
Posterior Inferior Cerebellar Artery ◽  
Artery Aneurysm ◽  
Lateral Approach ◽  
Cerebellar Artery ◽  
Far Lateral Approach ◽  
Far Lateral ◽  
The Right ◽  
Pica Aneurysms

Numerous nuanced approaches have been used to access posterior inferior cerebellar artery (PICA) aneurysms for microsurgical clipping. The authors report the case of a patient with a right vertebral artery (VA)–PICA aneurysm that was reached via a contralateral far-lateral approach. The wide-necked saccular/fusiform aneurysm arose from the lateral aspect of the right V4 segment just proximal to the PICA origin, anterior to the jugular tubercle at the level of the hypoglossal canal. Computed tomography angiograms demonstrated the size and configuration of the aneurysm, and 3D reconstructions revealed the tortuosity of the right VA, defining its location just left of the midline adjacent to the lower clivus. A contralateral far-lateral approach to VA–PICA aneurysms should be considered when aneurysms cross the midline. Computed tomography angiography with volume rendering and interactive software capabilities can help identify the relationship of such an aneurysm to an individual's particular skull base osseous anatomy and is paramount in selecting the optimal microsurgical approach.

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.

scholarly journals Direct puncture of the V3 segment of the vertebral artery in acute basilar artery stroke: an alternative approach in desperate circumstances

2019 ◽  
Vol 12 (8) ◽  
pp. e231335 ◽  
Author(s):  
Sean Thomas O’Reilly ◽  
Ian Rennie ◽  
Jim McIlmoyle ◽  
Graham Smyth
Keyword(s):  
Vertebral Artery ◽  
Basilar Artery ◽  
Posterior Inferior Cerebellar Artery ◽  
Left Vertebral Artery ◽  
Basilar Artery Thrombosis ◽  
Direct Puncture ◽  
Alternative Approach ◽  
Cerebellar Artery ◽  
First Pass ◽  
The Right

A patient in his mid-40s presented with acute basilar artery thrombosis 7 hours postsymptom onset. Initial attempts to perform mechanical thrombectomy (MT) via the femoral and radial arterial approaches were unsuccessful as the left vertebral artery (VA) was occluded at its origin and the right VA terminated in the posterior inferior cerebellar artery territory, without contribution to the basilar system. MT was thus performed following ultrasound-guided direct arterial puncture of the left VA in its V3 segment, with antegrade advancement of a 4 French radial access sheath. First pass thrombolyisis in cerebral infarction (TICI) 3 recanalisation achieved with a 6 mm Solitaire stent retriever and concurrent aspiration on the 4 French sheath. Vertebral closure achieved with manual compression.

Revascularization and Aneurysm Surgery

Neurosurgery ◽  
2014 ◽  
Vol 74 (5) ◽  
pp. 482-498 ◽  
Author(s):  
M. Yashar S. Kalani ◽  
Wyatt Ramey ◽  
Felipe C. Albuquerque ◽  
Cameron G. McDougall ◽  
Peter Nakaji ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Cerebral Artery ◽  
Superficial Temporal Artery ◽  
Posterior Inferior Cerebellar Artery ◽  
Superior Cerebellar Artery ◽  
External Carotid ◽  
Occipital Artery ◽  
Aneurysm Surgery ◽  
Cerebellar Artery

Abstract BACKGROUND: Given advances in endovascular technique, the indications for revascularization in aneurysm surgery have declined. OBJECTIVE: We sought to define indications, outline technical strategies, and evaluate the outcomes of patients treated with bypass in the endovascular era. METHODS: We retrospectively reviewed all aneurysms treated between September 2006 and February 2013. RESULTS: We identified 54 consecutive patients (16 males and 39 females) with 56 aneurysms. Aneurysms were located along the cervical internal carotid artery (ICA) (n = 1), petrous/cavernous ICA (n = 1), cavernous ICA (n = 16), supraclinoid ICA (n = 7), posterior communicating artery (n = 2), anterior cerebral artery (n = 4), middle cerebral artery (MCA) (n = 13), posterior cerebral artery (PCA) (n = 3), posterior inferior cerebellar artery (n = 4), and vertebrobasilar arteries (n = 5). Revascularization was performed with superficial temporal artery (STA) to MCA bypass (n = 25), STA to superior cerebellar artery (SCA) (n = 3), STA to PCA (n = 1), STA-SCA/STA-PCA (n = 1), occipital artery (OA) to PCA (n = 2), external carotid artery/ICA to MCA (n = 15), OA to MCA (n = 1), OA to posterior inferior cerebellar artery (n = 1), and in situ bypasses (n = 8). At a mean clinical follow-up of 18.5 months, 45 patients (81.8%) had a good outcome (Glasgow Outcome Scale 4 or 5). There were 7 cases of mortality (12.7%) and an additional 9 cases of morbidity (15.8%). At a mean angiographic follow-up of 17.8 months, 14 bypasses were occluded. Excluding the 7 cases of mortality, the majority of aneurysms (n = 42) were obliterated. We identified 7 cases of residual aneurysm and recurrence in 6 patients at follow-up. CONCLUSION: Given current limitations with existing treatments, cerebral revascularization remains an essential technique for aneurysm surgery.

scholarly journals Vertebral artery and posterior inferior cerebellar artery aneurysms: Results of microsurgical treatment of eighty patients

2019 ◽  
Vol 10 ◽  
pp. 227
Author(s):  
Yuri Pilipenko ◽  
Shalva Eliava ◽  
Dmitry Okishev ◽  
Elena Okisheva ◽  
Andronikos Spyrou
Keyword(s):  
Vertebral Artery ◽  
Vegetative State ◽  
Posterior Inferior Cerebellar Artery ◽  
Clinical Signs ◽  
Surgical Approaches ◽  
Microsurgical Treatment ◽  
Suboccipital Craniotomy ◽  
Cerebellar Artery ◽  
Angiographic Data ◽  
Pica Aneurysms

Background: The choice of surgical approaches and options for the microsurgical vertebral artery (VA) and posterior inferior cerebellar artery (PICA) aneurysms repair remains controversial. Methods: A retrospective analysis of the clinical, surgical, and angiographic data of 80 patients with VA and PICA aneurysms treated from 2012 to 2018 was performed. Results: The aneurysms were saccular in 50 cases (62.5%) and fusiform in 30 cases (37.5%). The median suboccipital craniotomy was the most common approach (73.8%). Retrosigmoid craniotomy was performed in 25% of patients. There were the following types of microsurgical operations: neck clipping (61.25%), clipping with the artery lumen formation (13.75%), trapping (10%), proximal clipping (5%), and deconstruction with anastomosis (10%). Fifty-seven (71.3%) patients were discharged without worsening of the clinical signs after surgery. The most common postoperative neurological disorder was palsy of IX and X cranial nerve revealed in 14 (17.5%) patients. No fatal outcomes or patients in vegetative state were identified. The complete occlusion of PICA and VA aneurysms according angiography was in 77 (96.3%) cases. Conclusion: Microsurgical treatment is an effective method for VA and PICA aneurysms. The majority of VA and PICA aneurysms do not require complex basal approaches. A thorough preoperative planning, reconstructive clipping techniques, and anastomoses creation, as well as patient selection based on the established algorithms and consultations with endovascular surgeons, may reduce the number of complications and increase the rate of complete microsurgical occlusion in VA and PICA aneurysms.

scholarly journals Case Report: Endovascular Treatment of a Giant Distal PICA Aneurysm in Association With a Cerebellar AVM: A Report on Treatment Considerations and a Literature Review

2020 ◽  
Vol 11 ◽  
Author(s):  
Hassan A. Khayat ◽  
Christine M. Hawkes ◽  
Almunder R. Algird
Keyword(s):  
Posterior Inferior Cerebellar Artery ◽  
Superior Cerebellar Artery ◽  
Management Approach ◽  
Parent Vessel ◽  
Cerebral Angiogram ◽  
First Case ◽  
Cerebellar Artery ◽  
Risk Of Rupture ◽  
The Right ◽  
Pica Aneurysms

Background: Distal posterior inferior cerebellar artery (PICA) aneurysms are uncommon intracranial vascular lesions. The coincidence of these aneurysms and Arteriovenous malformation (AVM) is even more rare. Since 1956, a total of 57 cases of distal PICA aneurysms associated with AVM have been reported with clear and adequate description. None of these reports describe a giant prenidal aneurysm at this particular location. The paucity of natural history data as well as lack of consensus about treatment strategies in such cases present a significant challenge that requires an individualized management approach.Case Description: A 68-year-old male presented with recurrent episodes of nausea and vomiting precipitated by physical exertion and change of head position. An MRI of the brain demonstrated a giant partially thrombosed right posterior inferior cerebellar artery (PICA) aneurysm with mass effect on the floor of the fourth ventricle. A conventional cerebral angiogram revealed a giant (3.1 x 3.1 x 2.8cm) distal right PICA pre-nidal aneurysm with two smaller distal PICA aneurysms. An AVM (Spetzler-Martin Grade 1) supplied by the right PICA as well as the right superior cerebellar artery (SCA) was also identified on cerebral angiography (not seen on an MRI). Endovascular coil embolization with parent vessel sacrifice was performed to occlude the giant aneurysm. Due to the asymptomatic nature, low risk of rupture, and the patient's age, AVM treatment was deferred.Conclusion: This paper presents the first case of a giant PICA aneurysm associated with cerebellar AVM. For PICA aneurysm-AVM complexes, meticulous evaluation of the morphology, associated anatomy, and comparative risk analysis for both lesions are key for treatment planning. Distal PICA aneurysms can be treated safely with parent vessel occlusion, particularly in the case of prenidal aneurysms.

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