Program

Focus

Although advances in devices and technology have resulted in more than half of all unruptured cerebral aneurysms being treated with endovascular therapy, new technologies and devices alone do not always provide the best treatment. In this session, the achievements and challenges of endovascular treatment for unruptured cerebral aneurysms, and how to distinguish between endovascular treatment and direct surgery, will be deeply discussed.

Focus

Although the widespread use of liquid embolic agents and the development of new devices have steadily improved the outcome of endovascular treatment of dural arteriovenous fistulae, there are still some pathologies that are difficult to cure.
In this session, the characteristics, diagnostic techniques, and therapeutic methods regarding these “difficult-to-treat” lesions upon verifying the current results will be discussed, to find the future directions.

Focus

In addition to the established efficacy of mechanical thrombectomy (MT) in cases of occlusion of the ICA/M1, several RCTs have demonstrated its efficacy in cases of basilar artery occlusion and extensive infarction over the last year. In addition, treatment of atherosclerotic occlusions, peripheral vascular occlusions, cases with low NIHSS score, and cases after 24 hours of onset, as well as direct thrombectomy without t-PA administration, are also widely used. Here, the indications for MT will be discussed upon the review of currently available evidences.

Focus

NBCA is now reimbursed and can be available not only for intracranial AVMs and dAVFs, which are the indications for Onyx, but also for tumor embolization and hemorrhagic situations. In this session, we will discuss technical tips and outcomes of NBCA use in various diseases to help promote the safe and effective use of this material.

Focus

Treatment for posterior communicating artery aneurysm is not yet fully controlled by either coiling or flow diverters. In this session, we will discuss on the existing problems of endovascular treatment for aneurysms at this lesion to seek for optimal solutions.

Focus

More than 20 years have passed since the publication of ISAT, and we would like to clarify the consensus and controversy as to usefulness of NET in ruptured intracranial aneurysms which are often complicated by intracerebral hematoma, increased intracranial pressure, and management of blood-blister like aneurysms and dissecting aneurysms to find an optimal therapeutic strategy for this pathology in which insurance coverage restricts the devices for use.

Focus

The most important factor for the development and spread of NET is the education of the physicians. Sen-no-Rikyu, a historical tea master, told that " You may observe manners and then violate them or break with them provided that you are still based upon the principles. The ideal education is not only to teach one's own style, but also to teach the ability to think of better methods to future generations, while never losing sight of the root of the art. We welcome applications from a wide range of people for the training of NET physicians, which is indispensable for the prosperity of this society, not only for the transmission of techniques and spirits and the establishment of an educational system, but also for the ideal education that young doctors think is necessary.

Focus

Although advances in technology and equipment have made it commonplace to achieve TICI 2B or better recanalization, we still encounter failure of mechanical thrombectomy (MT). In this session, the latest findings in the profiling of unsuccessful cases of MT are disclosed, and open discussion on how far to go with (and where to give up) in order to find a clue to escape from this labyrinth, will be provided.

Focus

AI technology has made remarkable progress and is expected to be quite accurate in diagnostic imaging. Presentations on the latest findings and directions on how to utilize AI in NET will be provided in this session.

Focus

CAS in Japan is at a proud level in terms of penetration rate and superb therapeutic results compared with other countries. Furthermore, TCAR is expected to be approved by the end of this year, and distal protection balloons are scheduled to be reintroduced. We hope that this session will be the first step toward the standardization of this modality.

Focus

In this session, we will discuss how far NET can and should go in the treatment of brain AVMs, which require careful decisions regarding intervention, by utilizing liquid embolic materials and novel devices.

Focus

Although guidelines do not recommend aggressive treatment for this condition, the number of cases that can be cured is increasing due to the widespread use of liquid embolic materials. In this session, we would like to have a lively discussion based on the indications and long-term results of treatment at each institution to confirm the safe and reliable therapeutic range and to find a direction for its expansion.

Focus

While advances in devices and technologies have enabled safe and reliable NET in general, access failure and intracranial vessel perforation are the last things to take place. In this session, we will discuss how to avoid these two events and how to deal with them when they occur, based on the judgment of physicians, to help overcome these problems.

Focus

Antiplatelet therapy (APT) is essential in the treatment of cerebral aneurysms and CAS. The APT regimen, however, remains ununified and based on the experience and ideas at each institution. In order to provide safer NET, we would like to have a lively discussion to formulate a direction toward standardization by disclosing the findings to date and the results of each institution's regimen.

Focus

Although more than 10 years have passed since the usefulness of targeted embolization, in which only the shunted pouch is embolized in a cavernous sinus dural arteriovenous fistulae (CSdAVFs), was reported, this method has not become widely used.
In this session, we would like to discuss the current status, problems, tips and pitfalls of target embolization for CSdAVFs, where TVE is the main treatment.

Focus

In this session, presentations on the development of devices essential for the development of NET, and basic research that supports the validity of each therapeutic option including the current status and future direction of this therapy, will be disclosed.

Focus

In treating medium vessel occlusions (MeVO) where medical therapy could be more effective than in large vessel occlusion, tortuosity and small vessel size are big concerns for performing mechanical thrombectomy (MT). In this session, thorough discussion on the current status and future direction of MT for MeVO, which is paid the most attention to now.

Focus

It is no exaggeration to say that flow diverters (FD) has caused a paradigm shift in the treatment of large aneurysms, but it has not yet become the final solution tool for bifurcation aneurysms and giant aneurysms. In this symposium, abstracts on what conditions FD treatment is definitely effective, what approaches are possible for non-responding cases, and the direction of treatment for large aneurysms, are welcome.

Focus

The number of acute ischemic stroke complicated by malignancy, including Trousseau's syndrome are increasing nowadays, and mechanical thrombectomy is indicated in most cases. However, there are many cases that are not straightforward due to the presence of "hard-to-retrieve" thrombi and the difficulty of postprocedural management to avoid recurrence. In this session, he latest findings on this pathology and the results of each institution are deeply discussed, with the aim of bringing the usefulness of NET one step forward.

Focus

Middle cerebral artery (MCA) aneurysms often present complex anatomy, thus direct surgery is considered to have an advantage for treating these aneurysms. In this symposium, we would like to discuss thoroughly based on the results of both NET and direct surgery from the viewpoint of less invasiveness, safety, and complete cure, including whether new devices such as PulseRider and W-EB are a ray of hope for NET in MCA aneurysms.

Focus

With the reimbursement of NBCA and the development of microcatheters with farther accessibility, the number of brain tumor embolization is expected to increase, and we would like to discuss the anatomical knowledge, techniques, and strategies necessary for safe and effective embolization.

Focus

Unlike intracranial dural arteriovenous fistulas, spinal arteriovenous shunt disease has not yet been widely treated with endovascular therapy due to its high anatomical difficulty and small number of cases. This session aims to clarify the current scope of NET of difficult spinal arteriovenous shunts, and to understand how to guarantee the cure and safety of endovascular treatment.