Endovascular treatment of intracranial internal carotid artery bifurcation region aneurysms.

Intracranial internal carotid artery (ICA) bifurcation region aneurysms are uncommon. When treatment is necessary for ICA, endovascular treatment (EVT) can be a useful option. Due to the complexity of these aneurysms and the variability of EVT techniques, EVT for ICA bifurcation aneurysms is challenging.

Treatment of filum terminale pial arteriovenous fistulas in the sacral region: A case report and systematic review.

Spinal filum terminale pial arteriovenous fistulas (FT PAVFs) are uncommon. Most FT PAVFs are located in the lumbar region; far fewer are located in the sacral region. Due to the rarity of sacral FT PAVFs, the precise surgical dissection and removal of these lesions are challenging.

Direct arteriovenous fistula due to a blister-like aneurysm of the supraclinoid internal carotid artery hijacking its adjacent vein.

Background: This is the first report of a direct acquired arteriovenous fistula (AVF) between an intracranial aneurysm and its adjacent pial vein.

Case Description: A 33-year-old male suffered subarachnoid hemorrhage. Computed tomography angiography revealed an aneurysm of the supraclinoid internal carotid artery (ICA).

Endovascular treatment of posterior inferior cerebellar artery trunk aneurysm.

Background: The posterior inferior cerebellar artery (PICA) generally originates from the vertebral artery (VA) and is the most complex cerebellar artery. Aneurysms can occur at any site along the PICA trunk. Although most PICA aneurysms are located at the VA-PICA junction, a small proportion is located at the PICA trunk.

Parent artery occlusion for flow-related aneurysms at the proximal segment of the main feeding arteries of cerebellar arteriovenous malformations.

Background: Flow-related aneurysms (FRAs) associated with cerebellar arteriovenous malformations (AVMs) are complicated, and their management is difficult. We performed a retrospective study to explore the efficacy and outcome of parent artery occlusion (PAO) for FRAs at the proximal segment of the main feeding arteries of cerebellar AVMs.

Materials And Methods: A retrospective study was performed for patients admitted for a cerebellar AVM between January 2015 and December 2019.

Intracranial Fusiform and Circumferential Aneurysms of the Main Trunk: Therapeutic Dilemmas and Prospects.

Intracranial fusiform and circumferential aneurysms (IFCAs), especially those located on the main trunk, are uncommon and difficult to manage. Currently, literature focused on IFCAs on the main trunk of cerebral arteries is lacking. The treatment of IFCAs is still under debate.

Brain arteriovenous malformations and dural arteriovenous fistulas with extensive venous congestive encephalopathy.

In brain arteriovenous malformations (BAVMs) and dural arteriovenous fistulas (DAVFs), when too much blood is drained into the venous system, extensive venous congestive encephalopathy (EVCE) can appear. EVCE in BAVMs and DAVFs can be divided into acute and chronic stages. BAVMs and DAVFs have their own classification systems, but EVCE is not considered in these classification systems and needs to be emphasized.

Angiographic Evaluation and Endovascular Treatment Considerations of Brain Arteriovenous Malformations With a Transdural Blood Supply: A Single-Center Experience.

In rare circumstances, brain arteriovenous malformations (BAVMs) can recruit a transdural blood supply (TBS). The clinical and radiologic characteristics of BAVMs with a TBS are poorly understood. A retrospective review of the medical records was conducted for adult patients who were admitted for BAVMs from Jan 2013 to Dec 2019.

Dissecting Aneurysm of the Anterior Temporal Artery: A Rare Case Report and Literature Review.

Dissecting aneurysm located at the trunk of the anterior temporal artery (ATA) is an extremely rare entity of which only a few cases have ever been reported. As a result of the small caliber and supposed non-competency of the ATA, sacrificing of the artery distal to the aneurysm is the mainstay of treatment. In this report, we present a 28-year-old man who was admitted for a ruptured fusiform aneurysm of the left ATA.

Endovascular treatment for dural arteriovenous fistulas in the petroclival region.

Petroclival region dural arteriovenous fistulas (DAVFs) are rare and difficult lesions to manage. They often have very complex anatomical structures and can be further divided into the superior petrosal sinus, petrous apex, inferior petrosal sinus, upper clival, and upper clival epidural-osseous DAVFs. Most petroclival region DAVFs should be treated due to their high Cognard grades.

Endovascular treatment for aneurysms at the A1 segment of the anterior cerebral artery: current difficulties and solutions.

Aneurysms located at the A1 segment of the anterior cerebral artery are considered rare and unique entities. Endovascular treatment (EVT) is effective in preventing aneurysmal bleeding. However, EVT for A1 aneurysms is difficult due to their distinctive configurations.

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

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.

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

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.

Single-Stage Clipping of Seven Intracranial Aneurysms in the Anterior Circulation via Unilateral Pterional Approach: A Case Report and Literature Review.

The occurrence of multiple intracranial aneurysms (MIAs) is not rare, with a reported incidence of 15 to 35%. However, patients harboring seven or more intracranial aneurysms are so uncommon that only sporadic cases have ever been reported. We present a rare case with seven intracranial aneurysms (two anterior communicating artery aneurysms, two right middle cerebral artery aneurysms, two left ophthalmic artery aneurysms, and one right ophthalmic artery aneurysm) in the anterior circulation that were simultaneously clipped via the extended right pterional approach.

Targeted endovascular treatment for ruptured brain arteriovenous malformations.

Currently, endovascular treatment (EVT) is recommended for ruptured brain arteriovenous malformation (BAVM). When performing EVT for ruptured BAVM, curative complete embolization without complications is the ideal goal, but, more often than not, it is difficult, impossible, and dangerous. Therefore, EVT targeted toward ruptured focal weak structures plays a very important role.

Clinical importance of the superficial temporal artery in neurovascular diseases: A PRISMA-compliant systematic review.

The superficial temporal artery (STA) plays a very important role in neurovascular diseases and procedures. However, until now, no comprehensive review of the role of STA in neurovascular diseases from a neurosurgical perspective has ever been published. To review research on the clinical importance of STA in neurovascular diseases, a literature search was performed using the PubMed database.

Brain arteriovenous malformation with transdural blood supply: Current status.

Arterial blood supply to a brain arteriovenous malformation (BAVM) is mainly derived from the internal carotid artery (ICA) and vertebral basilar artery (VBA) system. However, in certain cases, arteries supplying the meninges may also contribute to the blood supply of the BAVM, resulting in the formation of a BAVM with transdural blood supply (TBS). To review the current status of BAVM with TBS, a literature search was performed in the PubMed database.

Clinical importance of the occipital artery in vascular lesions: A review of the literature.

The occipital artery (OA) is a critical artery in vascular lesions. However, a comprehensive review of the importance of the OA is currently lacking. In this study, we used the PubMed database to perform a review of the literature on the OA to increase our understanding of its role in vascular lesions.

Clinical importance of the posterior meningeal artery: a review of the literature.

The posterior meningeal artery, which arises from the vertebral artery, is a critical artery in neurological lesions. However, a comprehensive review of the importance of the posterior meningeal artery is currently lacking. In this study, we used the PubMed database to perform a review of the literature on the posterior meningeal artery to increase our understanding of its role in vascular lesions.

Posterior occipital intramuscular hemangioma mimicking arteriovenous malformation: Case report.

Rationale: Intermuscular hemangioma (IH) usually occurs in the muscles of the limbs and trunk, but can rarely occur in the occipital region. IH in the occipital region is easily misdiagnosed as arteriovenous malformation (AVM).

Patient Concerns: A 31-year-old woman had a right occipital mass for 5 months without pulsation.

Coexistence of Persistent Primitive Trigeminal Artery, Moyamoya Disease, and Multiple Intracranial Aneurysms: A Case Report and Literature Review.

Background: Persistent primitive trigeminal artery (PPTA) is a rare abnormal carotid-basilar anastomosis. In rare circumstances, PPTA can be associated with some cerebrovascular anomalies, including arteriovenous malformation, intracranial aneurysm, carotid cavernous fistula, and moyamoya disease (MMD).

Case Description: In this report, we present an extremely rare case with simultaneous occurrence of PPTA, MMD, and multiple intracranial aneurysms.

Downregulation of long noncoding RNA H19 rescues hippocampal neurons from apoptosis and oxidative stress by inhibiting IGF2 methylation in mice with streptozotocin-induced diabetes mellitus.

The diabetes mellitus (DM)-induced reduction of neurogenesis in the hippocampus is consequently accompanied by cognitive decline. The present study set out to define the critical role played by long noncoding RNA H19 (lncRNA H19) in the apoptosis of hippocampal neurons, as well as oxidative stress (OS) in streptozotocin (STZ)-induced DM mice through regulation of insulin-like growth factor 2 (IGF2) methylation. The expression of lncRNA H19 in the hippocampal neurons and surviving neurons were detected.

Hemichorea associated with cavernous angioma and a small errhysis: A case report and literature review.

Rationale: Chorea is a movement disorder characterized by randomly appearing involuntary movements of the face, neck, limbs, or trunk. Hemichorea is unilateral, involving one side of the body. Hemichorea is commonly caused by non-ketotic hyperglycemia and/or cerebrovascular injury to the contralateral basal ganglia.

Current Status of Endovascular Treatment for Dural Arteriovenous Fistulas in the Superior Sagittal Sinus Region: A Systematic Review of the Literature.

Background: Dural arteriovenous fistulas (DAVFs) occurring in the superior sagittal sinus (SSS) region are difficult to cure. Endovascular treatment (EVT) is an effective method for the treatment of SSS region DAVFs. Currently, no systematic review of EVT for SSS region DAVFs is available.