Anatomic and Angiographic Analyses of Ophthalmic Artery Collaterals in Moyamoya Disease

Robert, Thomas; Cicciò, Gabriele; Sylvestre, Philippe; Chiappini, Alessio; Weil, Arthur; Smajda, Stanislas; Chaalala, Chiraz; Blanc, Raphaël; Reinert, Michael; Piotin, Michel; Bojanowski, Michel W.

doi:10.3174/ajnr.a5622

Cited by 19 publications

(17 citation statements)

References 15 publications

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“…The steno-occlusive changes of MMD usually occur at the supraclinoidal portion of the ICA and its two main branches. In some circumstances, the slow progression of MMD allows collateral circulation from the external carotid artery to develop and supply the central retinal artery (30). Aside from patients with cardiovascular emboli, CRAO is generally seen in the elderly population, especially those over 50 years old.…”

Section: Retinal Vascular Occlusionmentioning

confidence: 99%

Moyamoya Disease Associated With Morning Glory Disc Anomaly and Other Ophthalmic Findings: A Mini-Review

et al. 2020

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Moyamoya disease (MMD) is a chronic cerebrovascular disease that frequently results in intracranial ischemia or hemorrhage. Its concurrence with varying ophthalmic findings is relatively rare yet may lead to irreversible blindness. We performed a search and review of the literature to characterize the relevance of MMD (excluding moyamoya syndrome) and ophthalmic findings. As a result, a total of 38 articles identified from PubMed and Web of Science were included in this mini-review. Patients with MMD sometimes present with decreased visual acuity or visual field defects before the onset of symptomatic cerebrovascular dysfunction. The most predominant ophthalmic condition in MMD patients is the morning glory disc anomaly (MGDA). Deficiency during neuroectodermal genesis and subsequent mesodermal changes may be responsible for the association between these two diseases. Thus, it may be beneficial for patients with MGDA to receive cerebral vascular examinations as the precaution against life-threatening intracranial angiopathy. Other ophthalmic findings reported in cases of MMD include retinal vascular occlusion, optic disc pallor, cortical blindness, etc. For most of the patients with MMD, retinal examinations would be recommended to prevent potential loss of vision. It is essential for both neurologists and ophthalmologists to be aware of the correlation between cerebrovascular diseases such as MMD and ocular manifestations to achieve a comprehensive diagnosis.

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Section: Retinal Vascular Occlusionmentioning

confidence: 99%

Moyamoya Disease Associated With Morning Glory Disc Anomaly and Other Ophthalmic Findings: A Mini-Review

et al. 2020

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“…In addition, the middle meningeal artery (MMA), internal maxillary artery (IMA), and facial artery (FA) could also provide TDCs to the frontal lobe at the anterior cranial fossa through the AEA and PEA. Rete vasculosum (or rete mirabile) might also be formed at the anterior cranial fossa [1].…”

Section: Tdcs From the Anterior Cranial Fossamentioning

confidence: 99%

“…Moyamoya disease (MMD) is characterized by progressive steno-occlusive alteration of the supraclinoid portion of the internal carotid artery (ICA) and the beginning of its two main branches. During the irreversible progression of disease, as a compensatory mechanism, puff-like collaterals to the ischemic cerebral parenchyma form at the base of the brain [1].…”

Section: Introductionmentioning

confidence: 99%

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Angiographic study of the transdural collaterals at the anterior cranial fossa in patients with Moyamoya disease

Hou

Guo

et al. 2020

Int. J. Med. Sci.

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Unlike its parietal, temporal, and occipital counterparts, the frontal lobe has a broad basal surface directly facing the anterior cranial fossa dura mater which could permit establishment of transdural collaterals (TDCs) with the frontal lobe. Studies on the TDCs from the anterior cranial fossa in moyamoya disease (MMD) are scarce and inadequately investigated. A retrospective study of 100 hemispheres in 50 patients who were diagnosed with MMD by catheter angiography between January 2015 and June 2019 was performed in our institution. TDCs through the anterior ethmoid artery (AEA) or posterior ethmoid artery (PEA) were divided into 3 types respectively based on their respective angioarchitecture. Furthermore, we also studied TDCs to the temporal, parietal, and occipital lobes and collaterals from the posterior circulation to the territory of the anterior cerebral artery. TDCs through the AEA and PEA were identified in 89 (89/100, 89%) and 73 (73/100, 73%) of the hemispheres. The vascularization state of the frontal lobe was good in 89 (89/100, 89%) hemispheres. Rete mirabile and TDCs through the PEA were statistically different among patients with different Suzuki stages. No statistical difference was noted in TDCs through the AEA, frontal TDCs from other sources, and the vascularization state of the frontal lobe with regard to different Suzuki stages. TDCs through the AEA and PEA at the anterior cranial fossa play a very important role in compensating the ischemic frontal lobe. The frontal lobe could be well compensated in most of the patients with TDCs at the anterior cranial fossa.

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“…is uncommon, PCA involvement is an independent important risk factor as the leptomeningeal collateral from PCA is a significant blood flow source of collaterals. 11 In a study conducted by Robert et al, 12 duro-pial collaterals from branches of the ECA to the territory of the ACA were observed in 5 hemispheres (6.8%) and perivascular collaterals were observed in 47 hemispheres (63.5%). Ophthalmic artery collaterals were noted in 35 patients (47.3%) and were most frequent in patients with Suzuki grades III-V. 12 In our study, the ophthalmic artery was involved in 10% (4 hemispheres) of patients in the atherosclerosis group and 4.7% (25 hemispheres) of patients in the moyamoya group.…”

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confidence: 94%

Angiographic analysis of the variation of arterial collaterals in moyamoya and atherosclerosis at a tertiary care center in Saudi Arabia

Nuzhat

Akeel²,

Husain³

2020

SMJ

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Objectives: To evaluate the anatomical variation of arterial collaterals and their prevalence in moyamoya and atherosclerosis. Methods: Data was collected retrospectively from patients (n=46) database who underwent digital subtraction angiography between January 2010 and December 2018 at the Radiology Department, King Fahad Medical City, Riyadh, Saudi Arabia. Demographic details and clinical data of the patients such as age, gender, etiology, clinical presentation, angiographic staging using Suzuki grading for Original Article moyamoya cases, variation of arterial collaterals, and their prevalence, treatment and follow up were obtained. Results: Four types of collaterals network were observed in atherosclerosis (n=21) and moyamoya (n=25); the leptomeningeal, durocortical, subependymal, inner-interstriatal and intrathalamic networks. More number of collaterals were observed in the moyamoya (n=534) than atherosclerosis (n=40). Leptomeningeal network (n=198, 37.1%) and subependymal network (n=170, 31.8%) were greater than durocortical and inner-interstriatal or intrathalamic in patients with moyamoya. Whereas leptomeningeal network (n=25, 62.5%) and innerinterstriatal or intrathalamic (n=7, 17.5%) were predominant in atherosclerosis. Out of 25 cases of moyamoya, Suzuki grading V was noted in 5 (20%) and grade IV in 13 (52%). Conclusion: Understanding the dynamics that have evolved in the development of the collaterals and therefore can improve both management and prognosis.

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Anatomic and Angiographic Analyses of Ophthalmic Artery Collaterals in Moyamoya Disease

Cited by 19 publications

References 15 publications

Moyamoya Disease Associated With Morning Glory Disc Anomaly and Other Ophthalmic Findings: A Mini-Review

Moyamoya Disease Associated With Morning Glory Disc Anomaly and Other Ophthalmic Findings: A Mini-Review

Angiographic study of the transdural collaterals at the anterior cranial fossa in patients with Moyamoya disease

Angiographic analysis of the variation of arterial collaterals in moyamoya and atherosclerosis at a tertiary care center in Saudi Arabia

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