• Title/Summary/Keyword: Vascular Dementia

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FDG PET Imaging For Dementia (치매의 FDG PET 영상)

  • Ahn, Byeong-Cheol
    • Nuclear Medicine and Molecular Imaging
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    • v.41 no.2
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    • pp.102-111
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    • 2007
  • Dementia is a major burden for many countries including South Korea, where life expectancy is continuously growing and the proportion of aged people is rapidly growing. Neurodegenerative disorders, such as, Alzheimer disease, dementia with Lewy bodies, frontotemporal dementia, Parkinson disease, progressive supranuclear palsy, corticobasal degeneration, Huntington disease, can cause dementia, and cerebrovascular disease also can cause dementia. Depression or hypothyroidism also can cause cognitive deficits, but they are reversible by management of underlying cause unlike the forementioned dementias. Therefore these are called pseudodementia. We are entering an era of dementia care that will be based upon the identification of potentially modifiable risk factors and early disease markers, and the application of new drugs postpone progression of dementias or target specific proteins that cause dementia. Efficient pharmacologic treatment of dementia needs not only to distinguish underlying causes of dementia but also to be installed as soon as possible. Therefore, differential diagnosis and early diagnosis of dementia are utmost importance. F-18 FDG PET is useful for clarifying dementing diseases and is also useful for early detection of the diseases. Purpose of this article is to review the current value of FDG PET for dementing diseases including differential diagnosis of dementia and prediction of evolving dementia.

Development of Dementia Care Model in a Community (지역사회 치매관리 모형 개발 : 광명시의 경우)

  • 배상수;김동현;우영국;오진주;민경복;이수현;이미라;이상숙;표옥정
    • Health Policy and Management
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    • v.9 no.1
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    • pp.30-71
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    • 1999
  • There has been a dramatic increase in public awareness regarding dementia during recent years. However, dementia remains a family affair and patients do not receive adequate care in Korea. This study aims to assist patients and their caregivers by establishing Home and Community based Long-Term Care in a city. The data collected for analysis include five main categories: dementia prevalence, limitations of daily activities of patients, burden of caregivers, the services that patient's family want to utilize, the resources that handle dementia in the community. Major findings can be summarized as follows: 1)The prevalence rate of dementia for elderly people is 13.1 per 100 persons. Alzheimer's disease amount to 38.9% of dementia patients and vascular dementia account for 36.7% of them 2)Eight out of ten patients have mild dementia. Almost all patients have normal ADL. IADL, however, shows different picture. In every items of IADL, about 60% of patients reveals some limitations. 3)The proportion of patients who had medical diagnosis is as low as 20%. Families of patients think dementia as normal aging process and medical doctors in the community do not give special concern to dementia patients. 4)Caregivers does not have proper social support. They suffer from long care time, experience large obstacles in respect of health, daily living, and social activity. 5)Health center and Community welfare center have launched some programs-consultation, home-visiting nursing, day care center, voluntary force mobilization and so on-for dementia patients. But they do not perform expected roles and functions because of lack of skilled personnels and inadequate coordination of relevant organizations for dementia care. 6)Families of dementia patients prefer home helper and home-visiting nurse to hospitalization. For the future, however, demand for institution-based long-term services will increase. We develope community dementia care model based on above findings as follows: 1)Health center execute community cardiovascular control program for the prevention of vascular dementia. 2)Refer to epidemiologic characteristics of patients and preference of family, the most urgent task for dementia care in this city is to expand and organize Home and Community based Long-Term Care. 3)For the continuous and comprehensive care, care plan for a patient must be prepared. Case management team should be builded to prepare this plan and coordinate relevant resources. 4)Special long-term care unit for dementia will be needed in a near future. This unit should have multiple functions, such as day-care center, short stay facility, training center for relevant personnels, besides long-term nursing home considering effective care of dementia and efficient operation of the facility. 5)Voluntary workers deserve their due efforts. Incentive mechanisms must be developed to activate voluntary activities.

Local Region Spectral Analysis for Performance Enhancement of Dementia Classification (인지증 판별 성능 향상을 위한 스펙트럼 국부 영역 분석 방법)

  • Park, Jun-Qyu;Baek, Seong-Joon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.11
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    • pp.5150-5155
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    • 2011
  • Alzheimer's disease (AD) and vascular dementia (VD) are the most common dementia. In this paper, we proposed a region selection for classification of AD, VD and normal (NOR) based on micro-Raman spectra from platelet. The preprocessing step is a smoothing followed by background elimination to the original spectra. Then we applied the minmax method for normalization. After the inspection of the preprocessed spectra, we found that 725-777, 1504-1592 and 1632-1700 $cm^{-1}$ regions are the most discriminative features in AD, VD and NOR spectra. We applied the feature transformation using PCA (principal component analysis) and NMF (nonnegative matrix factorization). The classification result of MAP(maximum a posteriori probability) involving 327 spectra transformed features using proposed local region showed about 92.8 % true classification average rate.

A review study of treatment effects for vascular dementia (혈관성 치매 치료 약물에 대한 문헌 고찰 연구 : 외국문헌을 중심으로)

  • Lee, Young-Joon;Han, Chang-Hyun;Jeon, Won-Kyung;Baek, Kyung-Min;Cheon, Woo-Hyun;Choi, Seong-Hun
    • Journal of Society of Preventive Korean Medicine
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    • v.15 no.2
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    • pp.51-67
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    • 2011
  • The average human life span has increased due to the development of modern medicine and science, resulting in prolonged life expectancy and increase in the population counts of the geriatric age group. In particular, a dramatic increase of elderly patients suffering from senile disorders including neurodegenerative diseases, Alzheimer's disease(AD), and vascular dementia has become a serious social problem in public health. Thus, this study is aimed to summarize available clinical trial data on several commonly used medicines include donepezil, rivastigmine, galantamine, memantine and oriental medicine, and examine the effect of oriental medicine combined with western medicine in the treatment of patients with senile disorders using the data from literature reviews and survey studies.

Anti-dementia Effects of Gouteng-san and Si-Wu-Tang

  • Watanabe, Hiroshi
    • Toxicological Research
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    • v.17
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    • pp.257-261
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    • 2001
  • Recently, a traditional medicine called Gouteng-san, which consists of eleven herbs, was reported to be effective in treating vascular dementia with a double-blind, placebo-controlled study. Gout-eng-san is also used for patients with vascular dementia in combination with Si-Wu-Tang. The effect of Gouteng-san and Si-Wu-Tang on deficit of learning behavior was investigated using step-down passive avoidance task in mice. Hot-water extract of Gouteng-san (1.5 and 6 g/kg, p.o.) significantly prolonged the step-down latency shortened by scopolamine. The extract of Uncaria hook (150 mg/kg, p.o.), one of the component herb of Gouteng-san, significantly prevented the decrease in the latency after scopolamine. Hot-water extract of Si-Wu-Tang (1.5 and 6 g/kg of dried herbs, p.o.) prevented dose-dependently scopola-mine-induced disruption qf learning behavior. Si-Wu-Tang also prevented the ischemia-induced deficit of learning behavior. Both hot water extract of peony and angelica (1.5 g/kg, p.o.), which are component herbs qf Si-Wu-Tang, prevented the scopolamine-induced learning behavior deficit. Scopolamine (10 uM) suppressed long-term potentiation (LTP) of population spike in the CA1 region of the rat hippocampal slices. Peoniflorin (0.1~ 1uM) extracted from paeony root significantly ameliorated scopolamine-induced inhibition of LTR These results suggest that improvement of deficit of learning behavior by Gouteng-san and Si-Wu-Tang is mediated by direct and/or indirect activation of the cholinergic system in the brain.

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A Study on the Clothing Behavior of Dementia Inpatient (치매환자의 의복행동에 관한 연구)

  • Ryou, Eun-Jeon;Park, Hye-Won;Bae, Hyun-Sook;Kwon, Jay-Cheol
    • Journal of the Korean Society of Clothing and Textiles
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    • v.30 no.8
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    • pp.1253-1262
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    • 2006
  • This research explored the clothing behavior of dementia inpatient according to the dementia severity, dementia type and demographic characteristics. Data were collected by surveying 149 dementia inpatients and their caregivers. The collected data were analysed through frequency analysis, $X^2$-test, one way ANOVA, Duncan's multiple range test and t-test. The results were as follows: First, the dementia severity was classified into the severe, moderate and mild dementia by K-MMSE and the dementia types were composed of Alzheimer's disease, vascular dementia and the others. The severe dementia group and Alzheimer's disease group included the more aged and more female inpatients. And the severe dementia group was lower self-support of the basic activities of daily living than the mild dementia group. Second, the change motions of the dementia inpatient's clothing differed from the clothing item and dementia severity. That is, the motions for pants were more difficult than those for upper garment. And the motions for severe dementia group were more difficult than those for the mild dementia group. Third, there were significant differences among the three groups by dementia severity and between the male and female dementia inpatient in the clothing behavior. Most of abnormal clothing behaviors were found in the severe dementia group. The positive clothing behaviors appeared in the mild dementia group. And interests of clothing and appearance appeared in the female inpatients.

Differences in Verbal Fluencies and Discourse Comprehension Abilities associated with Working Memory in Alzheimer's Disease and Vascular Dementia (알츠하이머와 혈관성 치매 환자 선별에서의 작업기억 능력 관련 구어유창성 및 이야기이해 능력의 차이)

  • Yeo, Hangyeol;Kim, Choong-Myung
    • Journal of the Korea Convergence Society
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    • v.11 no.12
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    • pp.383-390
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    • 2020
  • The present study was conducted to examine the differences and correlations between verbal fluency and story comprehension according to the working memory(WM) capacity, and to find out what WM factors influence the linguistic competence in Alzheimer's disease(AD) and vascular dementia(VaD) groups each consisting of 15 patients. The results of their performance produced firstly significant differences in phonemic fluency, story comprehension, delayed recall and recognition task between the two groups. Further analysis shows that VaD group had significant correlations between the scores of story comprehension and the recognition test scores additionally. These findings suggest that it is possible to differentiate the two groups even by story comprehension tasks and WM. In conclusion, the clinical application of the results is likely to contribute to appropriate treatment plans and effective interventions for elderly with AD and VaD as well as to improve the classification criteria for both types of dementia.

Prevalence of Dementia in the Elderly of an Urban Community in Korea (도시지역 노인들의 치매유병률에 관한 단면조사연구)

  • Na, Duk-L.;Yeon, Byeon-Gil;Kang, Yeon-Wook;Min, Kyung-Bok;Lee, Soo-Hyun;Lee, Sang-Suk;Lee, Mi-Ra;Pyo, Ok-Jung;Park, Chan-Byung;Kim, Sun-Mean;Bae, Sang-Soo;Kim, Dong-Hyun
    • Journal of Preventive Medicine and Public Health
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    • v.32 no.3
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    • pp.306-316
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    • 1999
  • Objectives: In Korea, as in most countries, there will be a sharp increase in the number of dementia patients in the near future. However basic data on dementia prevalence, which is important in defining epidemiologic characteristics and in implementing preventive strategy, are limited. This study was conducted to estimate the prevalence rate of dementia in the urban elderly aged 65 or older in Kwangmyung, Korea. Methods: A two phase design was used for case finding and case identification. In phase I, a representative sample aged 65 or older was selected and interviewed by door-to-door survey with a Korean version of the Mini-Mental State Examination (K-MMSE). In phase II, Of the 946 subjects interviewed in phase 1,356 elderly were randomly selected disproportionately according to K-MMSE score. Of these elderly, 223 (61.5%) underwent standardized clinical evaluations, including psychiatric interview, neurological examination, and neuropsychological assessment. Dementia was diagnosed by the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) criteria. The diagnosis of Alzheimer's disease (AD) was made by National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer's Disease and feinted Disorders Association(NINCDS-ADRDA) criteria and vascular dementia (VD) by DSM-IV. Results: The overall weighted prevalence rate of all dementia among Kwangmyung residents aged 65 or older was 12,8%(age-adjusted rate: 13,0%, 95% Confidence Interval[CI]: 10.6-15.3%). Women had much higher prevalence rate than men even when age was controlled(15.9%[95% CI 12.6-19.2%] vs 7.5%[95% CI 4.0-10.4%]), The rates of dementia were 5.2%, 12.2%, 17.0%, and 34.3% for the age groups of 65-69, 70-74, 75-79 and 80 and over, respectively. The rate of AD appeared to be slightly higher than that of VD(5.2% vs 4.8%), though not statistically significant. Most of the cases(69%) were mild dementia according to CDR(<1) in these subjects. Conclusions : These results showed that the prevalence rate of dementia among urban elderly in Korea appears to be higher than those of other Asian countries.

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The Clinical Analysis on 84 Cases of Dementia (치매 환자(患者) 84례(例)에 대한 유형별(類型別) 임상고찰(臨床考察))

  • Jeon, Sang-Yun;Kang, Hwa-Jeong;Kim, Yun-Wan;Hong, Seok
    • The Journal of Internal Korean Medicine
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    • v.21 no.2
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    • pp.193-201
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    • 2000
  • Objective : In western medicine, many medication therapies and non-medication therapies have been treated for dementia. But these methods did no more than symptomatic therapies, not basic treatment, which just can better subordinate symptoms. In fact, care or control became the very point of treatment of dementia. So, to try to find oriental medical treatments for Dementia, a clinical analysis was carried out for 84 patients who were diagnosed as Dementia through MMSE-K and treated in Dong-shin Oriental Medicine Kwangju Hospital and Karitaas Sanatorium from 10. Jan. 1998 to 20. May. 2000. Methods : Regardless of patterns of Dementia, the basic treatment(本治) is to supplement encephalon deficiency(腦髓不足). And the external treatment(標治) must be accompanied by through diagnosis according to symptoms(辨證). All patients were given Yukmi-jihwanghwan gami and acupuncture treatment. Results : Dementia of cerebral vascular type shows a high distribution(51 patients, 60.7%). Women also are distributed more widely(62명, 73.8%). In Age distribition, 70-79 years-32 patients(38.1%), over 80 years-21 patients(25%), 60-69 years-17 patients(20.2%), 50-59 years-13 patients(15.5%) and under 49 years-1 patient(1.2%). From this, Dementia occurs well over 60 years and the rate of occurrence of Dementia is high as people grow older. In past history of people with Dementia, hypertension is associated much(50 patients, 64.1%). Distribution of mental state by MMSE-K examination declined in orientaion, mathmatical faculty, memory faculty and composition faculty. In therapeutic effect by treatment duration, 14 patients(93.3%) out of 15 in sanatorium show a significant effect. And 52 patients(75.4%) out of 69 in the hospital show the same result. Especially, 11 patients with Alzheimer type in sanatorium showed an good effect when treated over 4 months. 40 patients(83.3%) with cerebral vascular type out of 48 in the hospital showed the stage of betterment. Conclusions : The basic treatment(本治) for Dementia is to supplement encephalon deficiency(腦髓不足). For promoting encephalon through supplementing kindney(補腎健腦), All patients were given Yukmi-jihwanghwan gami. And the external treatment(標治) through diagnosis according to symptoms(辨證) were be accompanied by. The result is quite effective. We consider there must be more research based on this study.

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Analysis of Clinical Korean Medicine Studies on Dementia : Focused on Korean Literatures for 10 Years (치매(痴呆)에 대한 임상 한의학 연구 경향 분석 : 지난 10년간의 국내 논문을 중심으로)

  • Lee, Dong Hyuk
    • Journal of Society of Preventive Korean Medicine
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    • v.24 no.1
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    • pp.37-48
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    • 2020
  • Objective : In this article, we overviewed clinical Korean Medicine studies on dementia by analyzing papers published in Korea from 2010 to 2019. Methods : We explored research articles on dementia from 5 Korean research databases using the keyword 'dementia' and 'Korean Medicine'. We included original articles and reviews of clinical Korean Medicine and excluded single case study and experiment article of animal model. Then we analyzed them according to the published year, journal type, and research topics. Results & Conclusions : Research topics were classified into 'research trend', 'treatment', 'prevention', 'evaluation', 'medical expenses', 'collaborative practice' and 'others'. The largest number of articles were published in 2011(24.4%). 'Journal of Oriental Neuropsychiatry' was the journal with the most published articles(46.3%). In research topics, the analyses of research trend accounted for the largest portion(39.0%) and the articles about treatment for dementia or evaluation index in Korean medicine had the second largest proportion(14.6%). We hope that various researches for therapeutic effects, mechanisms and preventive effects of Korean Medicine in dementia would be conducted for future study.