Anatomical Study of Anterior Inferior Cerebellar Artery and Its Reciprocal Relationship with Posterior Inferior Cerebellar Artery Based on Angiographic Data

Hou, Kun; Li, Guichen; Luan, Tengfei; Xu, Kan; Xu, Bin; Yu, Jinlu

doi:10.1016/j.wneu.2019.09.047

Cited by 22 publications

(26 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…11 During the EVT for vascular lesions involving the AICA, the a1-a2 segment should be preserved as far as possible. 2 Hence, the EVT is very complicated for cerebellar AVM mainly supplied by the AICA and the concurrent flow-related AICA aneurysm. 12 For AICA supplied cerebellar AVM and the concurrent flow-related AICA aneurysm, the principle of EVT is targeted management of the bleeding source.…”

Section: Discussionmentioning

confidence: 99%

“…The anatomical variation of AICA can also affect the strategy of EVT. 2 As illustrated in case 8 (Figure 3), obliteration of the superior AICA with Onyx was performed because the superior AICA was high and might not give rise to the IAA. Hence, besides the location of aneurysm, the anatomical variation of AICA also affects the management.…”

Section: Discussionmentioning

confidence: 99%

“…Inadvertent occlusion of the AICA proximal to the a2 segment can lead to a set of symptoms as vertigo, tinnitus, hearing loss, facial paresis, Horner's syndrome, and cerebellar ataxia. 2,3 For flow-related aneurysms originating from an AICA supplying the cerebellar AVM, the management becomes very complicated. Because we have to take into account the IAA, the perforating branches to the brainstem, and the AVM at the same time.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Endovascular treatment for the flow-related aneurysm originating from an anterior inferior cerebellar artery supplying the cerebellar arteriovenous malformation

Hou

Chen

et al. 2020

Interv Neuroradiol

Self Cite

View full text Add to dashboard Cite

Background When a flow-related aneurysm originates from an anterior inferior cerebellar artery (AICA) supplying the cerebellar arteriovenous malformation (AVM), the management becomes very complicated. Endovascular treatment (EVT) was an option, but no consensus has been achieved. Methods and materials: A retrospective investigation was performed for patients with flow-related aneurysm originating from an AICA supplying the cerebellar AVM. Results Ten patients, harboring 13 aneurysms, were identified. Of the 5 a1 aneurysms, 2 underwent stent assisted coiling, 2 underwent parent artery occlusion (PAO), and 1 was intact. Of the 8 a2 aneurysms, 3 underwent coiling with preservation of the AICA, 3 underwent PAO with Onyx, 1 underwent PAO with coils, and 1 was intact. Seven patients underwent partial embolization of the cerebellar AVM, 3 were intact. One patient died 6 hours postoperatively for cerebellar AVM rebleeding. During a follow-up from 6 months to 6 years, 9 patients had favorable recovery. Conclusion For the flow-related aneurysm originating from an AICA supplying the cerebellar AVM, the EVT depends on the specific circumstances. When the aneurysm is located at the a1 segment, coiling of the aneurysm with preservation of the parent AICA should be performed. PAO is the last resort. When the a2 aneurysm is proximal to the internal auditory artery, coiling of the aneurysm with preservation of the AICA is preferred. When the aneurysm is distal to the internal auditory artery, PAO can be safely performed.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Endovascular treatment for the flow-related aneurysm originating from an anterior inferior cerebellar artery supplying the cerebellar arteriovenous malformation

Hou

Chen

et al. 2020

Interv Neuroradiol

Self Cite

View full text Add to dashboard Cite

show abstract

“…The course of the anterior inferior cerebellar artery (AICA) is related with pons, foramen Luschka, middle cerebellar peduncle and petrosal surface of the cerebellum. 1 After arising from the basilar artery, AICA goes around the pons near the cranial nerve VII (CN VII) and VIII (CN VIII) and then branches to the internal auditory canal and choroid plexus of Luschka. 1 The vascular pathology such as vascular loop and aneurysm are rarely found in AICA and presents with different neuro-otological symptoms such as disabling tinnitus, vertigo and hearing loss.…”

Section: Introductionmentioning

confidence: 99%

Clinical perspectives of anterior inferior cerebellar artery: a review

Swain

Baliarsingh

2021

Int J Otorhinolaryngol Head Neck Surg

View full text Add to dashboard Cite

<p class="abstract">The anterior inferior cerebellar artery arises at the cerebellopontine angle (CPA), usually from the lower one third of the basilar artery. However, the vascular anatomy of the anterior inferior cerebellar artery (AICA) is highly variable. In respect to the neurovascular relationship in the internal auditory canal (IAC), the AICA is intimately related with vestibulocochlear and facial nerve. Microvascular compression of the vestibulocochlear nerve by AICA is an important etiology for tinnitus, hearing loss and vertigo. The vascular loop or aneurysm of the AICA will compress the vestibulocochlear nerve in the internal auditory canal. The AICA loop should be separated from the vestibulocochlear nerve. Magnetic resonance angiography (MRA) is helpful to reveal the vascular pathology of the AICA and confirm the causes for disabling otological symptoms. After confirmation of the vascular pathology of AICA, surgery is usually planned. The intrameatal AICA and vestibulocochlear nerve conflict produce specific pathological features and their surgical treatment is also invariably challenging. The objective of this review article is to discuss the details of vascular anatomy, etiopathology, clinical presentations, diagnosis, neurophysiology and current treatment of the vascular anomalies of AICA in IAC which often pose challenge to the clinicians.</p>

show abstract

“…1 Furthermore, the a2 segment can be subdivided into the pre-meatal, meatal and post-meatal portions. 2 Aneurysms can originate from any site along the whole length of the AICA, most of which are at the origin of the AICA from the basilar artery. Aneurysms at the a2 segment are extremely rare lesions, and should be aggressively managed with endovascular embolisation or open surgery.…”

Section: Introductionmentioning

confidence: 99%

In situ suturing of a post-meatal segment of the anterior inferior cerebellar artery dissected by an aneurysm: A technical note

Hou

Guo

et al. 2020

Neuroradiol J

Self Cite

View full text Add to dashboard Cite

Aneurysms originating along the peripheral portion of the anterior inferior cerebellar artery (AICA) are rare entities. As a result of the small diameter of the AICA, it is very challenging to preserve the parent artery during endovascular treatment for a peripheral AICA aneurysm. In this report, we present a rare case of aneurysm in the a2 segment of the right AICA. During surgery, the aneurysm was found to be a dissecting aneurysm. As the tissue of the aneurysm neck had a similar thickness to that of the adjacent normal vessel, interrupted suturing of the vessel was performed after partial removal and trimming of the aneurysm wall. The patient experienced an uneventful postoperative recovery. No other neurological deficit was noted. Magnetic resonance imaging three days after surgery revealed no acute ischaemia in the brainstem and cerebellum. Catheter angiography nine months later showed no recurrence of the aneurysm or stenosis of the AICA. The a2 segment of the AICA runs tortuously along the subarachnoid space of the cerebellopontine angle, which permits higher vascular mobility. In selected cases, in situ suturing or re-anastomosis could be considered for a2 segment aneurysms.

show abstract

Anatomical Study of Anterior Inferior Cerebellar Artery and Its Reciprocal Relationship with Posterior Inferior Cerebellar Artery Based on Angiographic Data

Cited by 22 publications

References 9 publications

Endovascular treatment for the flow-related aneurysm originating from an anterior inferior cerebellar artery supplying the cerebellar arteriovenous malformation

Endovascular treatment for the flow-related aneurysm originating from an anterior inferior cerebellar artery supplying the cerebellar arteriovenous malformation

Clinical perspectives of anterior inferior cerebellar artery: a review

In situ suturing of a post-meatal segment of the anterior inferior cerebellar artery dissected by an aneurysm: A technical note

Contact Info

Product

Resources

About