• Nuclear Medicine and Molecular Imaging
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• 제42권1호
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• pp.8-16
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• 2008

목적: 내경동맥 또는 중대뇌동맥의 죽상 동맥 경화증 환자에서의 두개외강-내강 우회로술(이하 우회로술) 후의 연속적인 혈류 역학적 변화를 $^{99m}Tc$-ECD 아세타졸아마이드 부하 뇌혈류 단일 광자 방출 전산화 단층 촬영(이하 아세타졸아마이드 부하 SPECT)으로 평가하여 중대뇌 동맥의 각 분지별 영역에 대한 우회로술의 혈류역학적 개선효과를 알아보고자 하였다. 대상 및 방법: 전향적 방법으로 최근 3개월 내에 혈관 폐색성 징후가 발생하여 우회로술을 시행받은 환자를 대상으로 수술 전과 수술 1 주 후, 3-6 개월 후에 아세타졸아마이드 부하 SPECT를 시행하였다. 영상 분석을 위해 SPM의 SPECT 표준 뇌에 공간 정규화한 후 Anatomical Automated Labeling으로 중대뇌동맥의 지배를 받는 양측 전두, 측두, 두정 영역에 관심 구역을 설정하여 각 관심 영역별로 뇌혈류 지표(PI; $C_{region}/C_{ipsilateral\;cerebellum}$) 및 뇌혈관 예비능 지표$((PI_{acetazolamide}-PI_{basal})/PI_{basal})$로 정하여 이들 지표의 수술 전후 변화를 평가하였다. 결과한 측에 성공적인 우회로술을 시행한 환자 17 명(남:여=12:5, 나이 $53{\pm}2$세)을 분석하였다. 전체적으로 뇌혈류는 수술 1 주 후 유의하게 증가하나 3-6 개월 후 감소하여 수술 이전의 수준으로 유지되었으며 ($1.01{\pm}0.09{\rightarrow}1.06{\pm}0.09}{\rightarrow}1.02{\pm}0.10,\;p=0.005$) 뇌 혈관 예비능은 수술 1 주 후 유의하게 증가한 이후 유의하지는 않으나, 3-6개월 이후까지 계속 호전되었다($-0.14{\pm}0.05{\rightarrow}-0.07{\pm}0.04{\rightarrow}0.05{\pm}0.05,\;p=0.004$). 각 뇌 영역별로 뇌혈류는 두정 영역에서 수술 직후 증가하였다가($1.12{\pm}0.09{\rightarrow}1.18{\pm}0.09,\;p=0.003$) 수술 3-6개월 이후 감소하여($1.12{\pm}0.09,\;p=0.003$) 수술 이전의 수준으로 유지되었다. 뇌혈관 예비능은 수술 측의 전두 영역($-0.15{\pm}0.07{\rightarrow}0.08{\pm}0.05$), 두정 영역($-0.16{\pm}0.07{\rightarrow}-0.07{\pm}0.05$)에서 모두 수술 직후 유의하게 증가하였고(p<0.01) 이후 유의하지는 않으나 3-6개월까지 계속 호전되었다. 결론: 성공적인 우회로술 후 뇌혈류는 전체적으로 유의한 변화가 없었으나 뇌혈관 예비능은 중대뇌동맥 영역 전체에 걸쳐 수술 후 단기간에 유의한 호전을 보였으며 장기간 유지되었다. 따라서 뇌혈관 예비능의 호전여부는 우회로술에 의해 증가된 뇌관류압을 평가할 수 있는 중요한 지표로 생각되며 향후 우회로술에 의한 뇌졸중 재발방지 효과를 알아보기 위해 뇌혈관 예비능의 변화와 예후와의 상관관계에 대한 연구가 필요하리라 생각된다.

• Journal of Korean Neurosurgical Society
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• 제57권6호
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• pp.422-427
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• 2015

Moyamoya disease (MMD) is a chronic, progressive, cerebrovascular occlusive disorder that displays various clinical features and results in cerebral infarct or hemorrhagic stroke. Specific genes associated with the disease have not yet been identified, making identification of at-risk patients difficult before clinical manifestation. Familial MMD is not uncommon, with as many as 15% of MMD patients having a family history of the disease, suggesting a genetic etiology. Studies of single nucleotide polymorphisms (SNPs) in MMD have mostly focused on mechanical stress on vessels, endothelium, and the relationship to atherosclerosis. In this review, we discuss SNPs studies targeting the genetic etiology of MMD. Genetic analyses in familial MMD and genome-wide association studies represent promising strategies for elucidating the pathophysiology of this condition. This review also discusses future research directions, not only to offer new insights into the origin of MMD, but also to enhance our understanding of the genetic aspects of MMD. There have been several SNP studies of MMD. Current SNP studies suggest a genetic contribution to MMD, but further reliable and replicable data are needed. A large cohort or family-based design would be important. Modern SNP studies of MMD depend on novel genetic, experimental, and database methods that will hopefully hasten the arrival of a consensus conclusion.

• Journal of Korean Neurosurgical Society
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• 제56권1호
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• pp.48-50
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• 2014

A 70-year-old woman presented with headaches and recurrent stroke symptoms. During five years, the patient has been treated for cerebral infarction associated with severe atherosclerotic stenosis of the internal carotid artery. Three-year follow-up magnetic resonance angiography showed a tiny de novo aneurysm arising from the distal part of atherosclerotic internal carotid artery. And 5-year follow-up three-dimensional CT angiogram demonstrated a definite aneurysm enlargement as large as requiring treatment. During dissection of aneurysm, the oculomotor nerve was found to be penetrated with the growing de novo aneurysm. The authors report a case of a de novo aneurysm, which resulted from atherosclerotic stenosis of the internal carotid artery at the supraclinoid portion, that was found to be penetrating the oculomotor nerve with no ocular palsy.

• 혜화의학회지
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• 제9권1호
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• pp.387-397
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• 2000

연구배경(硏究背景): He-Ne laser 정맥혈관내(靜脈血管內) 조사(照射) (Intravascular Laser Irradiation of Blood : ILIB)가 말초(末梢) 및 뇌혈관순환장애(腦血管循環障碍), 뇌기능장애(腦機能障碍), 동맥경화(動脈硬化) 등의 예방(豫防)과 치료(治療) 목적(目的)으로 사용(使用)되고 있으나 이에 대한 한의학(韓醫學)에서의 연구(硏究)는 찾아보기 힘들다. 이에 저자(著者)는 발병(發病) 48시간(時間) 이내(以內)에 내원(來院)하여 뇌전산화단층촬영(腦電算化斷層撮影)으로 진단(診斷)된 초기(初期) 뇌경색(腦梗塞) 환자(患者)에서 ILIB의 효과(效果)를 평가(評價)하고자 본(本) 연구(硏究)를 시행(施行)하였다. 아울러 흰쥐의 국소(局所) 뇌허혈(腦虛血)에 미치는 영향(影響)을 측정(測定)하였다. 방법(方法) : 대상(對象) 환자(患者) 40명(名)을 UC-SHJGS(우황청심환(牛黃淸心丸)-성향정기산(星香正氣散))만을 투여(投與)한 대조군(對照群)과 UC-SHJGS 투여(投與)와 ILIB를 병용(倂用)한 치료군(治療群)으로 나누어 시행(施行)하였다. 대상환자(對象患者)는 모두 변증(辨證)과 무관(無關)하게 UC, SHJGS만을 투여(投與)하고 침치료(鍼治療)는 중풍칠처혈(中風七處穴)로 한정(限定)하였으며 5일간(日間)의 치료기간(治療期間) 동안 치료군(治療群)에서는 출력(出力) 1.8-2.5mW의 He-Ne laser를 1일(日) 1회(回) 50분(分) 동안 조사(照射)하였다. 동물실험(動物實驗)은 흰쥐를 대상(對象)으로 중대뇌동맥(中大腦動脈)을 결찰(結紮)하여 국소(局所) 뇌허혈(腦虛血)을 유발(誘發)하고 대조군(對照群)과 ILIB를 실시(實施)한 실험군(實驗群)으로 나누어 그 허혈면적(虛血面積)과 부종율(浮腫率)을 측정(測定)하였다. 결과(結果) : 1. 증상호전지수(症狀好轉指數)는 대조군(對照群)과 치료군(治療群) 사이에 유의(有意)한 차이(差異)가 없었다. 2. 치료전후(治療前後) 측정(測定)한 내경동맥(內頸動脈) siphon부(部)의 혈관반응성(血管反應性)은 대조군(對照群)과 치료군(治療群)에서 모두 유의성(有意性)있는 변화(變化)가 없었다. 3. 치료전후(治療前後) 측정(測定)한 요골동맥(橈骨動脈)의 혈관반응성(血管反應性)은 대조군(對照群)과 치료군(治療群)에서 모두 유의성(有意性) 있는 변화(變化)가 없었다. 4. 치료전후(治療前後) 측정(測定)한 PT, a-PTT은 대조군(對照群)과 치료군(治療群)에서 모두 유의성(有意性)있는 변화(變化)가 없었고, fibrinogen은 치료군(治療群)에서 치료전(治療前)보다 유의성(有意性) 있게 증가(增加)하였으나 평균값이 정상(正常) 범위(範圍)에서 벗어나지 않았다. 5. 국소(局所) 뇌허혈(腦虛血) 동물(動物) 실험(實驗)에서는 실험군(實驗群)에서 신경학적(神經學的) 결손(缺損), 허혈(虛血) 면적율(面積率), 부종율(浮腫率)이 유의성(有意性)있게 감소(減少)하였다 결론(結論) : 이상(以上)의 연구(硏究) 결과(結果) 뇌경한(腦硬寒)의 초기(初期) 치료(治療)에서 기존(旣存)의 한의학(韓醫學) 치료(治療)에 ILIB를 추가(追加)하는 것이 치료(治療) 효과(效果)를 증가(增加)시킨다는 증거(證據)는 없었으며 동물(動物) 실험(實驗)에서는 뇌경색(腦梗塞)의 치료(治療)에 응용(應用)할 수 있는 가능성(可能性)을 보여주고 있으나 그 효과(效果)와 적응증(適應症)을 구체적(具體的)으로 증명(證明)하기 위한 체계적(體系的)이고 다양(多樣)한 임상실험(臨床實驗)이 지적(持績)되어야할 것으로 생각된다.

• Korean Journal of Radiology
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• 제23권3호
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• pp.333-342
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• 2022

Objective: Intracranial atherosclerotic stroke occurs through various mechanisms, mainly by artery-to-artery embolism (AA) or branch occlusive disease (BOD). This study evaluated the spatial relationship between middle cerebral artery (MCA) plaques and perforating arteries among different MCA territory infarction types using vessel wall magnetic resonance imaging (VW-MRI). Materials and Methods: We retrospectively enrolled patients with acute MCA infarction who underwent VW-MRI. Thirty-four patients were divided into three groups according to infarction pattern: 1) BOD, 2) both BOD and AA (BOD-AA), and 3) AA. To determine the factors related to BOD, the BOD and BOD-AA groups were combined into one group (with striatocapsular infarction [BOD+]) and compared with the AA group. To determine the factors related to AA, the BOD-AA and AA groups were combined into another group (with cortical infarction [AA+]) and compared with the BOD group. Plaque morphology and the spatial relationship between the perforating artery orifice and plaque were evaluated both quantitatively and qualitatively. Results: The plaque margin in the BOD+ group was closer to the perforating artery orifice than that in the AA group (p = 0.011), with less enhancing plaque (p = 0.030). In the BOD group, plaques were mainly located on the dorsal (41.2%) and superior (41.2%) sides where the perforating arteries mainly arose. No patient in the AA group had overlapping plaques with perforating arteries at the cross-section where the perforator arose. Perforating arteries associated with culprit plaques were most frequently located in the middle two-thirds of the M1 segment (41.4%). The AA+ group had more stenosis (%) than the BOD group (39.73 ± 24.52 vs. 14.42 ± 20.96; p = 0.003). Conclusion: The spatial relationship between the perforating artery orifice and plaque varied among different types of MCA territory infarctions. In patients with BOD, the plaque margin was closer and blocked the perforating artery orifice, and stenosis degree and enhancement were less than those in patients with AA.

• 대한한의학회지
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• 제44권4호
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• pp.87-103
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• 2023

Backgrounds and objectives: Cardiotonic Pills^® (CP) are used for vascular diseases such as coronary diseases, atherosclerosis, and cerebral infarction. This study aimed to determine the transient effects of CP on cerebrovascular CO₂ reactivity (CVR) and erythrocyte deformability in normal subjects. Methods: This study had a crossover design and included 10 participants who were randomly allocated to 2 groups. The experimental group was given CP with water, while the control group was given only water. CVR was measured by hyperventilation-induced CVR of the middle cerebral artery (MCA) using transcranial Doppler (TCD). Erythrocyte deformability was measured using a Rheoscan-D microfluidic ektacytometer. All measurements were performed prior to and 1, 2, and 3 hours after CP or water administration. Blood pressure and heart rate were also measured before and after administration. Results: CP significantly improved CVR 3 hours after administration in the experimental group compared to the control group (p = 0.042). The corrected blood flow velocity at partial pressure of end-tidal carbon dioxide (PETCO₂) = 40mmHg (CV40) was also significantly improved 2 and 3 hours after administration in the CP group compared to the control group (p = 0.036 and p = 0.021, respectively). CP significantly improved erythrocyte deformability 3 hours after administration in the experimental group compared to the control group (p = 0.027). Mean heart rate and mean blood pressure showed no change. Conclusions: This study demonstrated that CP increases CVR and erythrocyte deformability. These results suggested that CP improves cerebral microcirculation which provide evidence for the future use of CP for prevention of ischemic stroke and neurodegenerative diseases.

• 대한한방내과학회지
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• 제31권3호
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• pp.578-585
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• 2010

Objectives : Coldness of hands and feet has been regarded to be associated with blood circulation. This study was performed to assess the correlation between erythrocyte deformability and coldness of hands and feet. Methods : 145 patients who had taken an erythrocyte deformability test were selected for this study among hospitalized patients within 4 weeks after their cerebral infarction at the Internal Medical Department at Kyunghee Oriental Medical Center from August 2008 to August 2009. We divided the selected patients into two groups, with and without of coldness of hands and feet groups. The two groups were compared on risk factors for atherosclerosis and examined for variables including erythrocyte deformability. Results : 1. On demographic variables of the patients, only body mass index was significantly lower in the coldness of hands and feet group than the control group. There was no significant difference of the rate of hypertension, diabetes mellitus, hyperlipidemia, ischemic heart disease, smoking, drinking and carotid artery stenosis between the two groups. 2. According to blood test, the coldness of hands and feet group showed significantly lower erythrocyte deformability index than the control group. 3. Body mass index and erythrocyte deformability index showed a close relationship with coldness of hands and feet in multivariate analysis. Conclusions : The correlation between the erythrocyte deformability and coldness of hands and feet in cerebral infarction patients were decreased erythrocyte deformability participated in the mechanism of coldness of hands and feet.

• 대한한의학회지
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• 제18권1호
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• pp.72-81
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• 1997

The causes of stroke are presumed hypertension, atherosclerosis,. cardiac disease, diabetes mellitus and old age and risk factors of stroke are suggested hypertension, hyperlipidemia. obesity, smoking and drinking etc. Especilly, hypertension is one of the most important cause and risk factor of stroke, therfore without therapy hypertension leads to stroke. The frequence of hypertension is significantly higher in hemorrhage patients of intracranial hemorrhage and subarachnoid hemorrhage. Antihypertensive therapy has an impact not only on the primary prevention of stroke but also on stroke recurrence and the declining of stroke motality has been attributed to the widespread availability and use of antihypertensive therapy. The goals of antihypertensive therapy decrease the complications and motalitv of cardiovascular system and prevent the promoting arteriosclerosis. In this study, we observed the blood pressure change of cb-hemorrhagic patients with hypertension who were hospitalized from 1996. 3. 1 to 1997. 2 .26 in Wonkwang Oriental Hospital. These patients had no antihypertensive therapy and were supplied herb med(Jaum sikpoongtang, Chungrijagamtang, Gojinumja) in medication. Our results suggested as follows. 1. Systolic and diastolic average BP at admission is $150.71{\pm}15.61mmHg$ and $95.00{\pm}8.8mmHg$ and this is hypertension state defining WHO 2. During one week in admission, the blood pressure demostrated a marked declination by SBP 8.97mmHg and DBP 6.22mmHg. 3. During two week in admission, the declination of SBP was significant in paired t-test(p<0.05) but, the declination of DBP was non-significant in paired t-test. 4. The blood pressure during third and fourth weeks gradually declined but, non-significant in test. According to the above results, we suggested that the BP declination Was affected by $Jamyang{\cdot}Jaum$ prescriptions in acute stage of cerebral hemorrhage.

• 대한한의학방제학회지
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• 제28권4호
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• pp.451-458
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• 2020

뇌졸중 후 발생한 뇌전증 환자에서 항경련제와 함께 진간식풍탕가감방(鎭肝熄風湯加減方), 우황청심원(牛黃淸心元)을 위주로 하는 한의 치료를 병행하여 발작 억제 효과를 확인하였다.

• 대한한의학방제학회지
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• 제8권1호
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• pp.147-167
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• 2000

Reactive oxygen species (ROS) play an important role in the pathogenesis of a variety of life threatening conditions such as atherosclerosis, myocardial infarction and cerebral stroke. In this study, the effect of Sunghyangchungisan (SHCS) as a cytoproctant against ROS-induced cell injury was studied by investigating its effect on $H_{2}O_2-induced$ cell injury in cultured endothelial cells derived from the human umbilical vein. SHCS effectively proteced the cells against $H_{2}O_2-induced$ injury determined by trypan blue exclusion ability and lactate dehydrogenase (LDH) release. The effect of SHCS was concentration-dependent and the concentrations to inhibit by 50% the cell death and LDH release were $0.9{\pm}0.1$ and $1.2{\pm}0.1\;mg/ml$, respectively. In addition, SHCS effectively protected the cells against t-butylhydroperoside- and menadione-Induced injury as well. SHCS inhibited lipid peroxidation determined by malondialdehyde production. SHCS exerted as an effective scavenger of ROS produced by exposing the cells to $H_{2}O_2$ The activities of the intracellular ROS scavenging enzymes such as superoxide dismutase, catalase and glutathione peroxidase were not Influenced by SHCS.These results indicate that SHCS might exert as an effective cytoprotectant against ROS-induced cell injury. Further intensive studies would provide us insights into mechanisms of the pharmacological actions of SHCS.