Objective: To explore the impact of non-valvular atrial fibrillation (AF) on the global cognitive function and executive function of patients without dementia, and to observe the differences between different types of AF. Methods: This research is a prospective and cross-sectional study. Non-dementia patients admitted to the department of neurology in the third people's hospital of Chengdu from July 2018 to July 2019 were included. Patients with non-valvular AF were included in the AF group and those with sinus rhythm were included in the control group. General clinical data and compared global cognitive function (mini-mental state examination (MMSE) and montreal cognitive assessment (MOCA)) and executive function (shape trails test (STT) and stroop color and word test (SCWT)) data were obtained and compared between 2 groups, and between different AF type groups. Results: A total of 386 participants were included, including 203 in AF group (52.6%), age was 68 (63, 71) years old, 119 were male (58.6%) and 183 in control group, age was 68 (63, 71) years old, 101 were male (55.2%). MMSE(28 (27, 29)) and MOCA (25 (22, 26)) scores were lower in AF group than those in control group (P<0.05), while STT-A time (84 (64, 140) s), STT-B time (248 (184, 351) s), STT time difference((159 (106, 245) s), SCWT-A time (50 (50, 50) s), SCWT-B time (55 (46, 63) s), SCWT-C time (100 (86, 120) s) and SCWT time interference (46 (34, 65) s) were higher than those in control group (P<0.05). Moreover, there was no difference in above indexes between paroxysmal AF and non-paroxysmal AF. Conclusion: The global cognitive function and executive function of patients with non-valvular AF are both decreased, while there is no obvious difference of the global cognitive function and executive function between paroxysmal AF and non-paroxysmal AF patients.
Humans ; Male ; Female ; Atrial Fibrillation/diagnosis* ; Executive Function ; Prospective Studies ; Cross-Sectional Studies ; Cognition Disorders/diagnosis* ; Cognition

Humans ; Child ; Executive Function

OBJECTIVES: To comprehensively analyze the characteristics of cognitive impairment of temporal lobe epilepsy (TLE), and to explore the effects of different lateral patients' cognitive impairment and different clinical factors on cognitive impairment of TLE. METHODS: A total of 84 patients, who met the diagnostic criteria for TLE in the Department of Neurology, Xiangya Hospital, were collected as a patient group, with 36 cases of left TLE and 48 cases of right TLE. A total of 79 healthy volunteers with matching gender, age and education level were selected as a control group. The Mini-Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), and the scores of Arithmetic Test, Information Test, Digit Symbol Substitution Test (DSST), Block Design Test (BDT), Hayling Test and Verbal Fluency Test (VFT) of the revised Chinese Adult Wechsler Intelligence scale were retrospectively analyzed in the 2 groups.Multiple regression analysis was used to analyze the relationship between the clinical factors and the cognitive impairment score. RESULTS: Compared with the control group, the TLE patient group had low scores in all neuropsychological tests, with significant difference (all CONCLUSIONS There are multiple cognitive domain dysfunctions in TLE, including language, short-term memory, long-term memory, attention, working memory, executive function and visual space function. Left TLE has greater impairment of executive function and right TLE has greater damage in working memory. Long pathography of disease, hippocampal sclerosis and a history of febrile convulsions may lead to more severe cognitive impairment. Earlier identification and earlier intervention are needed to improve prognosis of patients.
Adult ; Cognitive Dysfunction/etiology* ; Epilepsy, Temporal Lobe/complications* ; Executive Function ; Humans ; Neuropsychological Tests ; Retrospective Studies

BACKGROUND: Single subcortical infarction (SSI) is caused by two main etiological subtypes, which are branch atheromatous disease (BAD) and cerebral small vessel disease (CSVD)-related SSI. We applied the Beijing version of the Montreal Cognitive Assessment (MoCA-BJ), the Shape Trail Test (STT), and the Stroop Color and Word Test (SCWT) to investigate the differences in cognitive performance between these two subtypes of SSI. METHODS: Patients with acute SSIs were prospectively enrolled. The differences of MoCA-BJ, STT, and SCWT between the BAD group and CSVD-related SSI group were analyzed. A generalized linear model was used to analyze the associations between SSI patients with different etiological mechanisms and cognitive function. We investigated the correlations between MoCA-BJ, STT, and SCWT using Spearman's correlation analysis and established cut-off scores for Shape Trail Test A (STT-A) and STT-B to identify cognitive impairment in patients with SSI. RESULTS: This study enrolled a total of 106 patients, including 49 and 57 patients with BAD and CSVD-related SSI, respectively. The BAD group performances were worse than those of the CSVD-related SSI group for STT-A (83 [60.5-120.0] vs. 68 [49.0-86.5], P = 0.01), STT-B (204 [151.5-294.5] vs. 153 [126.5-212.5], P = 0.015), and the number of correct answers on Stroop-C (46 [41-49] vs. 49 [45-50], P = 0.035). After adjusting for age, years of education, National Institutes of Health Stroke Scale and lesion location, the performance of SSI patients with different etiological mechanisms still differed significantly for STT-A and STT-B. CONCLUSIONS BAD patients were more likely to perform worse than CSVD-related SSI patients in the domains of language, attention, executive function, and memory. The mechanism of cognitive impairment after BAD remains unclear.
Cerebral Infarction ; Cerebral Small Vessel Diseases ; Cognitive Dysfunction/etiology* ; Executive Function ; Humans ; Mental Status and Dementia Tests

OBJECTIVES: The association between thyroid-related hormones and cognitive function has been controversial. The purpose of this study is to compare the levels of thyroid-related hormones in patients with Alzheimer's disease (AD) and mild cognitive impairment (MCI). Furthermore, we investigated the relationship between thyroid-related hormones and cognitive function. METHODS: From January 2011 to December 2018, we retrospectively reviewed 105 patients who were diagnosed with AD and MCI by visiting a dementia clinic at Ilsan Paik Hospital. Thyroid-related hormones [triiodothyronine (T3), thyroxine (T4), and thyroid stimulating hormone (TSH)] was measured using chemiluminescent immunoassay. An independent sample t-test was performed to analyze the mean value of thyroid-related hormones in patients of AD and MCI. To investigate whether thyroid-related hormones correlate significantly with Global deterioration scale (GDS), Clinical dementia rating (CDR) and scores of each The Korean version of the consortium to establish a registry for Alzheimer's disease items, we conducted a partial correlation analysis with geriatric depression scale-Korean version (GDS-K) scores as covariates. RESULTS: There was no significant difference in the mean serum T3, T4 and TSH levels between patients of the AD and the MCI, but the Construction Praxis Test (CPT) showed a significant positive correlation with the serum TSH concentration (p-value=0.004). CONCLUSIONS: In our study, the positive correlation between serum TSH level and the CPT associated with executive function was found to be helpful in understanding the association between thyroid-related hormones and the pathophysiology of dementia. Prospective studies in regard of the pathophysiology of thyroid-related hormones on cognitive function will be necessary in the future.
Alzheimer Disease ; Cognition ; Dementia ; Depression ; Executive Function ; Humans ; Immunoassay ; Mild Cognitive Impairment ; Prospective Studies ; Retrospective Studies ; Thyroid Hormones ; Thyrotropin ; Thyroxine

PURPOSE: This study aimed to examine the effects of subjective memory complaints, depression and cognitive function on performance of activities of daily living (ADL) in individuals with mild cognitive impairment (MCI). METHODS: A total sample consisted of 250 MCI patients diagnosed within one year. All participants were assessed with a battery of standardized neuropsychological tests, self-report measures of subjective memory complaints and depression, and performance of basic and instrumental ADL. Correlational and multiple linear regression analyses were conducted to identify the factors associated with performance of basic and instrumental ADL, respectively. RESULTS: Executive function and depression explained 9.4% of the variance in basic ADL. Reduced executive function and greater depressed mood were associated with worse performance on basic ADL. Executive function, subjective memory complaints, and time since onset of cognitive symptoms accounted for 22.2% of the variance in instrumental ADL in individuals with MCI. Lower executive function (t=−2.02, p=.044), greater memory complaints (t=5.36, p<.001), and longer periods of experiencing cognitive symptoms (t=2.24, p=.026) were associated with worse instrumental ADL performance. CONCLUSION: These results may help healthcare professionals develop interventions to improve cognitive outcomes with better understanding of the relationship among cognition, mood, and behavioral performance in individuals with MCI.
Activities of Daily Living ; Cognition ; Delivery of Health Care ; Depression ; Executive Function ; Humans ; Linear Models ; Memory Disorders ; Memory ; Mild Cognitive Impairment ; Neurobehavioral Manifestations ; Neuropsychological Tests

PURPOSE: This study aimed to identify the neural basis of executive function (EF) in amnestic mild cognitive impairment (aMCI) according to beta-amyloid (Aβ) positivity. Furthermore, we explored if the identified brain areas could serve as predictors for clinical progression. MATERIALS AND METHODS: We included individuals with aMCI using data from [¹⁸F]-florbetapir-positron emission tomography (PET), fluorodeoxyglucose-PET, and EF scores, as well as follow-up clinical severity scores at 1 and 5 years from baseline from the Alzheimer's Disease Neuroimaging Initiative database. The correlations between EF score and regional cerebral glucose metabolism (rCMglc) were analyzed separately for aMCI with low Aβ burden (aMCI Aβ−, n=230) and aMCI with high Aβ burden (aMCI Aβ+, n=268). Multiple linear regression analysis was conducted to investigate the associations between rCMglc and clinical progression. RESULTS: Longitudinal courses differed between aMCI Aβ− and aMCI Aβ+ groups. On average, aMCI Aβ− subjects maintained their level of clinical severity, whereas aMCI Aβ+ subjects showed progression. EF impairment in aMCI Aβ− was related to the anterior cingulate cortex (ACC), whereas that in aMCI Aβ+ was related to Alzheimer's Disease-vulnerable brain regions. ACC and the posterior cingulate cortex were associated with clinical progression in aMCI Aβ− and aMCI Aβ+, respectively. CONCLUSION: Our findings suggest that although MCI subjects showed similar behavioral phenotypes at the time of diagnosis, EF and further progression were associated with different brain regions according to Aβ burden. Clarification of the etiologies and nature of EF impairment in aMCI are critical for disease prognosis and management.
Alzheimer Disease ; Amyloid ; Brain ; Cognition ; Diagnosis ; Executive Function ; Follow-Up Studies ; Glucose ; Gyrus Cinguli ; Linear Models ; Metabolism ; Mild Cognitive Impairment ; Neuroimaging ; Phenotype ; Positron-Emission Tomography ; Prognosis

PURPOSE: This study was to identify changes in cognitive function and fatigue following chemotherapy in patients with stomach or colorectal cancer. METHODS: Of the participants, 67 underwent adjuvant chemotherapy, while 66 healthy participants made up the comparison group. Three assessment tools were used: 1) the Korean Mini-Mental State Examination; 2) Everyday Cognition; 3) Functional Assessment of Chronic Illness Therapy-Fatigue. The questionnaires were administered in three stages, before chemotherapy, towards the end of chemotherapy, and 6 months after the final chemotherapy session. Data were analyzed using descriptive statistics and repeated measures analysis of variance (RM ANOVA). RESULTS: At the post-chemotherapy stage, 38.8% of the patients who underwent adjuvant chemotherapy complained of subjective cognitive impairment and reported greater difficulty in the cognitive domains of attention and concentration, memory, and executive function. RM ANOVA revealed a significant decline in cognitive function after chemotherapy. However, improvement was observed six months after the completion of chemotherapy (F=42.68, p< .001). Cancer-related fatigue also showed similar patterns as observed in the case of cognitive function (F=44.76, p< .001). CONCLUSION: Chemotherapy was associated with increased cognitive decline and fatigue in cancer patients with cancer. Nursing intervention programs need to be developed to counteract cognitive decline and fatigue in patients undergoing chemotherapy.
Chemotherapy, Adjuvant ; Chronic Disease ; Cognition Disorders ; Cognition ; Colorectal Neoplasms ; Drug Therapy ; Executive Function ; Fatigue ; Gastrointestinal Neoplasms ; Healthy Volunteers ; Humans ; Longitudinal Studies ; Memory ; Nursing ; Prospective Studies ; Stomach

OBJECTIVE: Alcohol-induced blackout (blackout) is a typical early symptom of cognitive impairment caused by drinking. However, the first onset age of blackout or the duration after onset of blackout has not been directly compared in previous studies. The purpose of this study was to investigate the differences in cognitive function to the first start age of blackouts and their duration. METHODS: Thirty-one male subjects were included in this study. Their age at the first blackout and the duration after the onset of blackout were investigated. Neuropsychological tests were conducted to determine their attention, memory, and executive function. Subjects were divided into three groups according to their age of the first onset blackout (group O1, < 20 years; group O2, 21–39 years; and group O3, > 40 years). Subjects were also divided into three groups by duration after the onset of blackout (P1, < 10 years; P2, 10–29 years; and P3, > 30 years). We then examined differences in neurocognitive function among these groups. RESULTS: O1 tended to have a lower memory score than O2 (F = 3.28, p = 0.053). Significant differences were observed in attention and executive function between groups P1 and P3 (Digit Span_backward: F = 6.07, p < 0.05; visual span_forward: F = 4.19, p < 0.05; executive intelligence quotient: F = 3.55, p < 0.05). CONCLUSION: Greater memory impairment was detected in subjects having an earlier age of the first blackout. The longer the duration after the onset of blackout, the more impaired their attention and executive function skills.
Age of Onset ; Alcohol-Induced Disorders ; Amnesia, Retrograde ; Cognition Disorders ; Cognition ; Drinking ; Executive Function ; Humans ; Intelligence ; Male ; Memory ; Neuropsychological Tests

BACKGROUND AND PURPOSE: Cognitive training refers to a series of standardized tasks with inherent challenges that target specific cognitive domains. Positive outcome of cognitive training in persons with Alzheimer's disease has been reported. In this study, the objective was to design sets of cognitive training program, “Gipum-seo” which is combined cognitive training, consists of different levels of difficulty using predesigned paper-and-pencil exercises. Also, to evaluate the effects of the cognitive training on patients' with early stage of Alzheimer's disease. METHODS: The subjects for this study were forty participants who were diagnosed with early stage of Alzheimer's dementia. To test the efficacy of paper-based cognitive training programs to cognition, all patients were randomly grouped to either an intervention group (n=20) or a control group (n=20). The intervention group regularly received 24 sessions of paper-based cognitive training over a 12-week period. Neuropsychological examinations were conducted before and after this training period. RESULTS: After the 12 weeks, the intervention group showed a significant change in Korean version of the Mini-Mental State Examination (25.90±3.8), compared to the control group (23.7±2.8) (p=0.042). The training group also showed a significant improvement in language, attention and executive function, as compared with controls. CONCLUSIONS: Paper-based cognitive training might have beneficial effects on the general cognitive functions in the early stage of Alzheimer's dementia.
Alzheimer Disease ; Cognition ; Cognitive Therapy ; Dementia ; Education ; Executive Function ; Exercise ; Humans ; Neurocognitive Disorders ; Neuropsychological Tests