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Dive into the research topics where Younhee Kim is active.

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Featured researches published by Younhee Kim.


Neurology and Clinical Neuroscience | 2018

A case of Marfan syndrome with ischemic stroke due to middle cerebral artery dissection

Tadashi Ozawa; Akihiro Toyohara; Younhee Kim; Takafumi Mashiko; Reiji Koide; Haruo Shimazaki; Ayuho Higaki; Katsunari Namba; Shigeru Fujimoto

Marfan syndrome is known to cause aneurysm and dissection of the aorta and cerebral artery. Although there are many reports of dissection of the aorta, there are few of intracranial artery dissection. We report a 32‐year‐old man with Marfan syndrome. He was presented to our hospital with sudden left hemiparesis and dysarthria. The initial diffusion‐weighted image revealed high‐intensity lesions in the right corona radiata. Magnetic resonance angiography revealed the disruption of the blood flow signal in the proximal M1 portion of the right middle cerebral artery. The clinical course of acute occlusion and gradual recanalization was confirmed, and we diagnosed the dissection of the right middle cerebral artery. Anticoagulant therapy was started, and the neurological symptoms disappeared about 1 week after the onset. In Marfan syndrome, dissection of the intracranial cerebral artery is rare, so further investigation is required.


Neurology and Clinical Neuroscience | 2018

Peripheral type facial palsy caused by pontine lacunar infarction

Yuri Furuhashi; Kohei Furuya; Misato Yokose; Masayuki Suzuki; Younhee Kim; Kumiko Miura; Tadashi Ozawa; Kosuke Matsuzono; Takafumi Mashiko; Haruo Shimazaki; Reiji Koide; Shigeru Fujimoto

Cases of central nervous system (CNS) disorders manifesting peripheral type facial palsy are rare. We report a 70‐year‐old man with a small infarct of the pontine tegmentum who presented with acute‐onset peripheral facial palsy. In the case of infarction in this area, combined symptoms of peripheral facial palsy and abducens nerve palsy are often found, but peripheral facial palsy may occur as the only symptom as in our present case. In the differential diagnosis of peripheral facial nerve palsy, we should also consider the possibility of stroke such as pontine tegmentum infarction.


Neuro-Ophthalmology | 2018

Vertical Gaze Palsy Caused by Selective Unilateral Rostral Midbrain Infarction

Misato Yokose; Kohei Furuya; Masayuki Suzuki; Tadashi Ozawa; Younhee Kim; Kumiko Miura; Kosuke Matsuzono; Takafumi Mashiko; Mari Tada; Reiji Koide; Haruo Shimazaki; Tohru Matsuura; Shigeru Fujimoto

ABSTRACT Vertical gaze palsy is rarely a neurological symptom, although it has been observed in some cases. Here, we report the case of a patient presenting with complete upward and downward gaze palsy. In this case, a small lesion in the left rostral midbrain was observed on diffusion-weighted magnetic resonance (MR) images, and the lesion was considered to cause the ocular symptom. We consider that vertical gaze palsy is an important clue to an accurate topical diagnosis of a brain lesion.


Journal of Stroke & Cerebrovascular Diseases | 2018

Successful Tissue Plasminogen Activator for a Patient with Stroke After Stanford Type A Aortic Dissection Treatment

Kosuke Matsuzono; Masayuki Suzuki; Naoto Arai; Younhee Kim; Tadashi Ozawa; Takafumi Mashiko; Haruo Shimazaki; Reiji Koide; Shigeru Fujimoto

Some stroke patients with the acute aortic dissection receiving thrombolysis treatment resulted in fatalities. Thus, the concurrent acute aortic dissection is the contraindication for the intravenous recombinant tissue-type plasminogen activator. However, the safety and the effectiveness of the intravenous recombinant tissue-type plasminogen activator therapy are not known in patients with stroke some days after acute aortic dissection treatment. Here, we first report a case of a man with a cardioembolism due to the nonvalvular atrial fibrillation, who received the intravenous recombinant tissue-type plasminogen activator therapy 117 days after the traumatic Stanford type A acute aortic dissection operation. Without the intravenous recombinant tissue-type plasminogen activator therapy, the prognosis was expected to be miserable. However, the outcome was good with no complication owing to the intravenous recombinant tissue-type plasminogen activator therapy. Our case suggests the effectiveness and the safety of the intravenous recombinant tissue-type plasminogen activator therapy to the ischemic stroke some days after acute aortic dissection treatment.


Journal of Stroke & Cerebrovascular Diseases | 2018

Tissue Plasminogen Activator to Treat a Stroke after Foam Sclerotherapy in a Woman with a Patent Foramen Ovale

Kosuke Matsuzono; Naoto Arai; Masayuki Suzuki; Younhee Kim; Tadashi Ozawa; Takafumi Mashiko; Haruo Shimazaki; Reiji Koide; Tohru Matsuura; Shigeru Fujimoto

Although foam sclerotherapy to varicose veins is now a popular treatment because of its high efficacy and safety, some neurologic complications have recently been reported. Presently, the effectiveness and safety of intravenous recombinant tissue-type plasminogen activator therapy to stroke following foam sclerotherapy remain unclear. Here, we report the case of a 68-year-old woman whose ischemic symptoms following foam sclerotherapy were treated by intravenous recombinant tissue-type plasminogen activator. After she was admitted, the venous thrombosis in her right soleus vein and a patent foramen ovale causing the right-to-left shunt were revealed. Thus, we diagnosed the ischemic symptoms were due to paradoxical embolism following foam sclerotherapy. After intravenous recombinant tissue-type plasminogen activator therapy, there was no complication and the outcome was good. Our case suggests the effectiveness and the safety of intravenous recombinant tissue-type plasminogen activator therapy to paradoxical embolism following foam sclerotherapy.


Neurology and Clinical Neuroscience | 2016

Magnetic resonance imaging findings in Leigh syndrome with a novel compound heterozygous SURF1 gene mutation

Younhee Kim; Reiji Koide; Eiji Isozaki; Yu-ichi Goto

Leigh syndrome is a severe neurodegenerative disorder that mainly arises in infancy or early childhood. In 1998, mutations in the nuclear SURF1 gene, which encodes a protein involved in the cytochrome c oxidase, were identified in patients with Leigh syndrome. We report here a patient with Leigh syndrome carrying a novel compound heterozygous mutation in the SURF1 gene, in whom symmetrical parieto‐occipital cortex and white matter lesions were observed by magnetic resonance imaging, in addition to the characteristic basal ganglia lesions in Leigh syndrome.


Journal of the Neurological Sciences | 2018

Hemichorea-hemiballism by branch atheromatous disease with a unique cerebral blood flow abnormality

Kosuke Matsuzono; Masayuki Suzuki; Kohei Furuya; Dan Tomomasa; Younhee Kim; Tadashi Ozawa; Takafumi Mashiko; Haruo Shimazaki; Reiji Koide; Ryota Tanaka; Shigeru Fujimoto


Journal of the Neurological Sciences | 2017

Vertical gaze palsy caused by selective unilateral infarction of rostral interstitial nucleus of the medial longitudinal fasciculus (riMLF): A case report

M. Yokose; Tadashi Ozawa; Younhee Kim; Takafumi Mashiko; Mari Tada; Reiji Koide; Haruo Shimazaki; Tohru Matsuura; Shigeru Fujimoto


Journal of the Neurological Sciences | 2017

Cerebrovascular complications of orbital apex inflammatory disease

Younhee Kim; Tadashi Ozawa; Takafumi Mashiko; Reiji Koide; Haruo Shimazaki; Tohru Matsuura; Shigeru Fujimoto


Journal of the Neurological Sciences | 2017

Two sporadic cases of episodic ataxia type 2 with CACNA1A gene mutations

Haruo Shimazaki; Takafumi Mashiko; Younhee Kim; Tadashi Ozawa; Reiji Koide; Tohru Matsuura; Shigeru Fujimoto

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Tadashi Ozawa

Jichi Medical University

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Kohei Furuya

Jichi Medical University

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