Background: and PurposeMild cognitive impairment (MCI) is a condition with diverse clinical outcomes and subgroups. Here we investigated the topographic distribution of tau in vivo using the positron emission tomography (PET) tracer [18F]THK5351 in MCI subgroups. Methods: This study included 96 participants comprising 38 with amnestic MCI (aMCI), 21 with nonamnestic MCI (naMCI), and 37 with normal cognition (NC) who underwent 3.0-T MRI, [18F]THK5351 PET, and detailed neuropsychological tests. [18F]flutemetamol PET was also performed in 62 participants. The aMCI patients were further divided into three groups: 1) verbal-aMCI, only verbal memory impairment; 2) visual-aMCI, only visual memory impairment; and 3) both-aMCI, both visual and verbal memory impairment. Voxel-wise statistical analysis and region-of-interest -based analyses were performed to evaluate the retention of [18F]THK5351 in the MCI subgroups. Subgroup analysis of amyloid-positive and -negative MCI patients was also performed. Correlations between [18F]THK5351 retention and different neuropsychological tests were evaluated using statistical parametric mapping analyses. Results: [18F]THK5351 retention in the lateral temporal, mesial temporal, parietal, frontal, posterior cingulate cortices and precuneus was significantly greater in aMCI patients than in NC subjects, whereas it did not differ significantly between naMCI and NC participants. [18F] THK5351 retention was greater in the both-aMCI group than in the verbal-aMCI and visualaMCI groups, and greater in amyloid-positive than amyloid-negative MCI patients. The cognitive function scores were significantly correlated with cortical [18F]THK5351 retention. Conclusions [18F]THK5351 PET might be useful for identifying distinct topographic patterns of [18F]THK5351 retention in subgroups of MCI patients who are at greater risk of the progression to Alzheimer's dementia.

OBJECTIVE: The aim of this study is to assess the efficacy of cognitive health promotion workbook for community-dwelling elderlies with mild cognitive impairment and dementia performed by trained dementia partners. METHODS: The trained dementia partners performed cognitive training program with the workbook developed by Incheon Metropolitan Dementia Center to 36 participants with mild cognitive impairment or dementia at their home. The cognitive training program consisted of 60-minute sessions held twice weekly for 10 weeks. We evaluated their cognitive performances at baseline and after intervention. Pre- and post-intervention measures included Korean version of Mini-Mental Status Examination for Dementia Screening (MMSE-DS), Global Deterioration Scale, Korea Activities of Daily Living Scale, Korea Instrumental Activities of Daily Living Scale, Korean Version of Short Form Geriatric Depression Scale (SGDS-K) and Korean Quality of Life-Alzheimer's Disease (KQoL-AD). RESULTS: Participants showed significant improvements compared with their baseline in MMSE-DS (p=0.002), SGDS-K (p=0.001) and KQoL-AD (p<0.001). There were no significant differences of improvement between high cognitive function group (MMSE ≤20, n=16) and low cognitive function group (MMSE ≤20, n=20). CONCLUSION: These findings suggest that the cognitive training program with cognitive health promotion workbook can improve cognitive function, quality of life and depression for community-dwelling elderlies with mild cognitive impairment and dementia and it would be efficient that trained dementia partners perform the cognitive training program regularly at their home.
Activities of Daily Living ; Cognition ; Dementia ; Depression ; Education ; Health Promotion ; Incheon ; Korea ; Mass Screening ; Mild Cognitive Impairment ; Quality of Life

BACKGROUND AND PURPOSE: Behavioral variant frontotemporal dementia (bvFTD) is a subtype of frontotemporal dementia, which has clinical symptoms of progressive personality and behavioral changes with deterioration of social cognition and executive functions. The pathology of bvFTD is known to be tauopathy or TDP-43 equally. We analyzed the 18F-THK5351 positron emission tomography (PET) scans, which were recently developed tau PET, in patients with clinically-diagnosed bvFTD. METHODS: Forty-eight participants, including participants with behavioral variant frontotemporal dementia (bvFTD, n=3), Alzheimer's disease (AD, n=21) and normal cognition (NC, n=24) who completed 3T magnetic resonance images, 18F-THK5351 PET scans, and detailed neuropsychological tests were included in the study. Voxel-wise statistical analysis and region of interest (ROI)-based analyses were performed to evaluate the retention of THK in bvFTD patients. RESULTS: In the voxel-based and ROI-based analyses, patients with bvFTD showed greater THK retention in the prefrontal, medial frontal, orbitofrontal, anterior cingulate, insula, anterior inferior temporal and striatum regions compared to NC participants. Left-right asymmetry was noted in the bvFTD patients. A patient with extrapyramidal symptoms showed much greater THK retention in the brainstem. CONCLUSIONS: The distribution of THK retention in the bvFTD patients was mainly in the frontal, insula, anterior temporal, and striatum regions which are known to be the brain regions corresponding to the clinical symptoms of bvFTD. Our study suggests that 18F-THK5351 PET imaging could be a supportive tool for diagnosis of bvFTD.
Alzheimer Disease ; Brain ; Brain Stem ; Cognition ; Diagnosis ; Executive Function ; Frontotemporal Dementia* ; Gyrus Cinguli ; Humans ; Neuropsychological Tests ; Pathology ; Positron-Emission Tomography ; Tauopathies

OBJECTIVE: We studied the effect of Hyu-Sig-Gong-Gan and Hye-Ah-Rim on several evaluations and compared the two programs. We then investigated factors associated with the difference between pre- and post-ratings. METHODS: Thirty-six patients were randomized to Hyu-Sig-Gong-Gan (n=23) or Hye-Ah-Rim (n=13). We tested for the effect of each program on several evaluations and compared the two programs through Zarit Burden Interview (ZBI), Center for Epidemiologic Studies-Depression Scale, Dementia Attitude Scale (DAS)-intelligence, DAS-comfort and DAS-total. We then investigated whether the difference between pre- and post-rating depends on other factors. RESULTS: We observed significant positive effect of Hyu-Sig-Gong-Gan on DAS-comfort (t=1.843, p=0.039) and significant positive effect of Hye-Ah-Rim on ZBI (t=-2.327, p=0.019), DAS-comfort (t=2.241, p=0.022), and EuroQol-5 Dimensions-Visual Analogue Scale (t=2.537, p=0.013). For comparing the two programs, we found a lack of evidence for the difference in any of the five commonly observed evaluations. In the secondary analysis, we observed a strong trend that the two programs were particularly effective for caregivers with negative pre-ratings. CONCLUSION: The two programs showed positive effects on the various evaluations, but some evaluations could not reach statistical significance. The programs appear to be particularly helpful for those who are in need before the program participation.
Aged* ; Caregivers* ; Dementia* ; Humans ; Program Evaluation

OBJECTIVE: The provision of care for elderly people with dementia by healthy elderly caregivers is one of the new health-care paradigms in South Korea. The aim of this study was to determine whether this type of care, which includes cognitive stimulation, would improve the cognitive function of dementia patients and the quality of life of the healthy elderly caregiver. METHODS: Totals of 132 dementia patients and 197 healthy elderly caregivers participated in this study. We evaluated the cognitive function of the dementia patients at baseline and after providing the program for 6 months using the Korean version of the Consortium to Establish a Registry for Alzheimer's disease, 1st Edition (CERAD-K). We also evaluated the quality of life of the healthy elderly caregivers using the World Health Organization Quality of Life-Short Version (WHOQOL-BREF) at baseline and after 6 months. RESULTS: The word-list memory results of CERAD-K for the included dementia patients improved after 6 months (Z=-2.855, p=0.004). The WHOQOL-BREF score among the elderly caregiver also improved significantly (Z=-2.354, p=0.019). CONCLUSION: These data suggest that dementia care is associated with improvements in both the cognitive function of dementia patients and the quality of life of the healthy elderly caregivers.
Aged* ; Alzheimer Disease ; Caregivers* ; Cognition ; Dementia* ; Humans ; Korea ; Memory* ; Quality of Life* ; World Health Organization

PURPOSE: Patients with work related burns suffer from anxiety, depression, insomnia and suicide ideation etc. Psychiatric symptoms could be reduced by treatment. Almost all patients are referred to psychiatric intervention in our hospital. However, a number of patients show non-adherence. The aim of this study is to figure out the reason of non-adherence and psychiatric symptoms of work related burns patients. METHODS: 123 patients participated in this study. Startle, Physiological arousal, Anger, and Numbness (SPAN), Feeling Suicide, Patient Health Questionnaire-2 (PHQ-2) were administered as screening tool. Questions about psychiatric intervention and reasons to refuse psychiatric intervention were asked. RESULTS: 32% patients were depressed, 34% patients had suicide ideation and 59% had PTSD after work related burns. However, 46% of burn patients had not been treated. Stigma of psychiatric intervention and concerns about dependency were major reasons for non-adherence. CONCLUSION: There are gap between necessity and reality of psychiatric intervention on work related burn patients.
Anger ; Anxiety ; Arousal ; Burns ; Dependency (Psychology) ; Depression ; Humans ; Hypesthesia ; Mass Screening ; Occupational Injuries ; Referral and Consultation ; Sleep Initiation and Maintenance Disorders ; Stress Disorders, Post-Traumatic ; Suicide

As Alzheimer's disease is the most common cause of dementia in older people, many efforts for accurate and reliable clinical diagnoses have been made all over the world. Generally diagnostic process of Alzheimer's disease is constituted with two steps : 1) to determine whether a patient is actually demented, 2) to determine whether the dementia actually caused by Alzheimer's disease. Newly developed diagnostic criteria, such as diagnostic criteria of the National Institute on Aging-Alzheimer's Association improve their specificity to diagnose Alzheimer's disease. We need Korean specific guideline for diagnosing Alzheimer's disease compatible in Korean clinical situation.
Alzheimer Disease ; Dementia ; Humans ; Sensitivity and Specificity

The Clinical Research Center for Dementia of South Korea (CREDOS), a nation-wide clinical dementia research group, has prepared clinical practice guidelines (CPG) for dementia tailored to the Korean population. In this article, a summary of the CREDOS CPG is presented with the Korean and English version of full report included in the appendix. The CREDOS CPG in intended not only for psychiatrists and neurologists, but also internists, family physicians, and other primary care physicians involved in the prevention and early diagnosis of dementia. While our CPG for dementia mainly covers Alzheimer's disease (AD) and vascular dementia (VaD), it also includes mild cognitive impairment (MCI) and vascular MCI, which are currently known to be the preclinical stages of AD or VaD, respectively, with emphasis placed on early diagnosis. The CREDOS CPG aims to achieve the following goals by developing CPG for dementia: to establish evidence-based, objective and clear clinical standards for dementia; to improve the clinical decision-making process for patients with dementia; to provide scientific and systematic scales to aid in the work of dementia specialists; to suggest comprehensive and systematic healthcare services tailored to each dementia subtype. The CREDOS CPG focuses on diagnosis and evaluation of clinical practice available domestically, and provides useful concepts of dementia. Its emphasis is on etiologies and epidemiology, diagnostic criteria and evaluation, neuropsychological tests, behavioral and psychological symptoms, the activities of daily living, laboratory tests, and brain imaging.
Activities of Daily Living ; Alzheimer Disease ; Appendix ; Delivery of Health Care ; Dementia ; Dementia, Vascular ; Early Diagnosis ; Humans ; Mild Cognitive Impairment ; Neuroimaging ; Neuropsychological Tests ; Physicians, Family ; Physicians, Primary Care ; Psychiatry ; Republic of Korea ; Weights and Measures

PURPOSE: The goal of this study was to develop a model of risk factors for depression in hospitalized burned patients. METHODS: Seventy-seven patients over 20 tears of age who were admitted to the Hangang Sacred Heart Hospital for burn injury, completed Structured Interview Post-traumatic stress disorder (PTSD), Beck Depression Inventory (BDI), Visual Analogue Scale (VAS) for pain and itching after 1 month from burn. A path analytic strategy was used to develop a model of risk factors for depression in burned patients. RESULTS: Two pathways to depression were developed. 1) From sleep disturbance and then to depression 2) from burn pain to PTSD and then to depression. It was revealed that sleep disturbance and PTSD had a direct effect on depression, pain had both direct and indirect effect on depression. CONCLUSION: Sleep disturbance and PTSD are associated with depression in burned patients. The identification of two developmental pathways suggests the importance of establishing preventive interventions for depression.
Burns ; Depression ; Heart ; Humans ; Pruritus ; Risk Factors ; Stress Disorders, Post-Traumatic

PURPOSE: Burn is an unusual medical situation with limited information open to common people. This study was designed to evaluate the communication gap and different understandings between doctor and patient about burn treatment and to improve quality of the treatment. METHODS: Cross-sectional studies were done with interview and questionnaire. 25 doctors and nurses of burn ward and 50 burn patients in Han-gang Sacred Heart Hospital Burn Center were participated. To understand the communication gap and different perception between doctors' and patients' on 1) burn sequela and recovery, 2) disease course and prognosis, 3) healing environment, cost, hospitalization, 4) nurse-physician collaboration, 5) psychiatric consultation, 6) extra incentive were analyzed. RESULTS: Patients tend to expectation positive answer about their prognosis from their physician but they have recognized chronic and negative prognosis of burn treatment. Patients want to know clear and detailed explanation about their test result or treatment methods. Physicians thought that it is important to consider patients' economic status and provide different treatment principle. Short duration of hospitalization is not related to the anxiety of rehabilitation. Patients thought that nurses could manage superficial or repeated treatment. It is more likely that physicians warn the disadvantages of psychiatric consultation than patients. Both groups thought that extra incentive or gratitude money is not helpful for the doctor patient relationship. CONCLUSION: Given the discrepant views of physicians and patients on the burn treatment, physician should be aware of the discrepancies and attempts to resolve any differences.
Anxiety ; Burn Units ; Burns ; Cooperative Behavior ; Cross-Sectional Studies ; Heart ; Hospitalization ; Humans ; Motivation ; Prognosis ; Surveys and Questionnaires