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Ischemic Stroke in Takayasu’s Arteritis: Lesion Patterns and Possible Mechanisms
황재춘,김석재,방오영,정진상,이광호,김덕경,김경문,이정훈 대한신경과학회 2012 Journal of Clinical Neurology Vol.8 No.2
Background and Purpose The purpose of the present study was to use brain magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) to identify the mechanism of stroke in patients with Takayasu’s arteritis (TA). Methods Among a retrospective cohort of 190 TA patients, 21 (3 males and 18 females) with a mean age of 39.9 years (range 15-68 years) who had acute cerebral infarctions were included in lesion pattern analyses. The patients’ characteristics were reviewed, and infarction patterns and the degree of cerebral artery stenosis were evaluated. Ischemic lesions were categorized into five subgroups: cortical border-zone, internal border-zone, large lobar, large deep, and small subcortical infarctions. Results In total, 21 ischemic stroke events with relevant ischemic lesions on MRI were observed. The frequencies of the lesion types were as follows: large lobar (n=7, 33.3%), cortical border zone (n=6, 28.6%), internal border zone (n=1, 4.8%), small cortical (n=0, 0%), and large deep (n=7, 33.3%). MRA revealed that 11 patients had intracranial artery stenosis. Conclusions Hemodynamic compromise in large-artery stenosis and thromboembolic mechanisms play significant roles in ischemic stroke associated with TA.
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황재춘,송파멜라,류수경,윤혜원,서대원 대한신경과학회 2009 대한신경과학회지 Vol.27 No.4
Vertebrobasilar insufficiency (VBI) in rotatory vertebral artery occlusion syndrome can be caused by voluntary head turning in the yaw plane. We report a case of VBI for head tilting in the roll plane. Transcranial Doppler on left head tilting resulted in decreased blood flow in both vertebral arteries. A CT angiogram revealed that the stenotic left vertebral artery was very close to an enlarged thyroid gland, suggesting mechanical compression of the vertebral artery during head tilt. Vertebrobasilar insufficiency (VBI) in rotatory vertebral artery occlusion syndrome can be caused by voluntary head turning in the yaw plane. We report a case of VBI for head tilting in the roll plane. Transcranial Doppler on left head tilting resulted in decreased blood flow in both vertebral arteries. A CT angiogram revealed that the stenotic left vertebral artery was very close to an enlarged thyroid gland, suggesting mechanical compression of the vertebral artery during head tilt.
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박혜리,황재춘,김예슬,김주현,조현진,정영희,차지훈,김성태,김경문 대한신경과학회 2016 대한신경과학회지 Vol.34 No.3
Arterial dissection is an important cause of stroke. We report two cases of isolated posterior inferior cerebellar artery (PICA) dissection diagnosed by high-resolution vessel-wall MRI (HRVW-MRI). One subject complained of abrupt-onset vertigo and headache, and the other subject had headache, vertigo, and Horner syndrome. Conventional MRA showed only focal dilatation of the PICA, but HRVW-MRI revealed intramural hematoma and double-lumen contour in the PICA, suggesting arterial dissection. We suggest that the use of HRVW-MRI should be considered when diagnosing isolated PICA dissection in a PICA infarct with an unknown cause.
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윤효은,전창진,황재춘,이호원,전지예 대한수면연구학회 2021 Journal of sleep medicine Vol.18 No.1
Objectives: Obstructive sleep apnea (OSA) is a common clinical disease which has been associated with cardiovascular disease and sudden death. Positive airway pressure (PAP) is the most effective treatment for OSA; however, most patients experience difficulties in tolerating machines, masks, or economic burdens. In Korea, National Health Insurance (NHI) application for PAP started in July 2018. Therefore, this study aimed to evaluate the PAP adherence and factors contributing to good adherence after NHI coverage in Korea. Methods: A retrospective study was performed to examine 89 patients with OSA who were treated with PAP in 2019. All medical records were analyzed to obtain demographic and clinical data, including personal history, polysomnographic data, and PAP results. Results: A total of 66 participants were included, of which 56 (84.8%) were maintained on PAP therapy after 3 months, and 32 of 42 (76.1%) were maintained on PAP therapy after 6 months; prolonged rapid eye movement (REM) sleep latency, increased non- REM (NREM) apnea-hypopnea index (AHI), and supine AHI significantly contributed to good PAP adherence for 3 months. At 6 months, prolonged REM sleep latency, increased NREM AHI, supine AHI, and increased arousal index significantly contributed to good PAP adherence. However, comorbid hypertension contributed to poor PAP compliance. Conclusions: PAP adherence in patients with OSA was 84.8% after 3 months, and 76.1% after 6 months after NHI coverage in a regional tertiary sleep center in Korea. Prolonged REM sleep latency and increased supine AHI and NREM AHI significantly contributed to good adherence, whereas comorbid hypertension was a factor for poor PAP compliance.
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항Hu 및 항SOX1자가항체가 동시에 확인된 아테졸리주맙 연관 자가면역뇌염
은미연,하형석,황재춘 대한신경과학회 2024 대한신경과학회지 Vol.42 No.1
Although immune checkpoint inhibitor-related encephalitis has been reported, its underlying mechanism and treatment strategies remain unclear. Here, we present the case of a 60-yearold male patient with small cell lung cancer who developed autoimmune encephalitis during treatment with atezolizumab. Notably, this case involved the concurrent detection of two paraneoplastic autoantibodies (anti-Hu and anti-SOX1). Encephalitis was treated by discontinuing atezolizumab and administering steroids, despite the persistence of the antibodies. This case provides insights into the interaction between immune checkpoint inhibitors and paraneoplastic autoantibodies.
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