Koichi Oki

Sep 25, 2023 | frontiersin.org | Shinichiro Uchiyama |Shigeru Nogawa |Koichi Oki

1 Introduction According to the 2019 Global Burden of Disease data, stroke remains the second most common cause of mortality globally (1, 2). Acute ischemic stroke (AIS) is among the two main subcategories of stroke (3), which occurs due to focal cerebral hypoperfusion commonly caused by embolism and atherosclerotic disease (4, 5).

Jul 8, 2023 | frontiersin.org | Shinichiro Uchiyama |Bruno Bonetti |Koichi Oki

1. IntroductionMechanical thrombectomy (MT) has been proven to be an effective treatment for acute ischemic stroke (AIS) with anterior circulation large-vessel occlusion and was established as the new standard of care in recent years (1–3). Nonetheless, there is still a significant proportion of patients who fail to achieve favorable outcomes, and 28.6–67.8% of patients have poor functional outcomes after MT therapy (4).

May 11, 2023 | frontiersin.org | Shinichiro Uchiyama |Takao Hoshino |Lucy Thomas |Koichi Oki

1. Introduction Cervical artery dissection (CAD) is one of the major causes of stroke in young and middle-aged adults, often caused by neck distortion, chiropractic manipulation, and trauma (1–3). Patients with CAD can have a wide range of symptoms, varying from completely asymptomatic to a fatal stroke. Typically, CADs present symptoms such as headache or neck pain and a partial Horner's syndrome, followed by retinal or cerebral ischemia (4–6).