NPI Scores Research Articles

The clinical and neuropsychological profiles of Alzheimer's disease with white matter hyperintensity in North China.

Patients with Alzheimer's disease (AD) often exhibit characteristic clinical manifestations, particularly neuropsychiatric symptoms. Previous studies have shown that white matter hyperintensity (WMH) is strongly associated with AD progression, as well as neuropsychiatric symptoms. The purpose of this study was to investigate the clinical and neuropsychological characteristics of AD patients with WMH. This retrospective study involved 104 18-fluorodeoxyglucose-positron emission computed tomography (18FDG-PET-CT)-defined AD patients treated at Tianjin Huanhu Hospital from January 2010 to December 2022. Cranial magnetic resonance imaging (MRI) provided semi-quantitative data on brain structure and WMH. Collect and analyze patient clinical data. Neuropsychological assessments were used to evaluate cognitive function and psychobehavioral traits. Among the 104 patients, 66 were in the WMH group (63.5%) and 38 in the non-white matter hyperintensity (non-WMH) group (36.5%). There were no significant differences in gender, age, age of onset, education, BMI, smoking, drinking, diabetes, coronary heart disease, dementia family history, fasting blood glucose, total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C) between the two groups. The WMH group showed higher rates of hypertension, homocysteine (Hcy) levels, NPI, and CDR scores as compared to the non-WMH group (p < 0.05). MMSE and MoCA scores were significantly lower in the WMH group (p < 0.05). In the MMSE subitem analysis, patients in the WMH group showed a decrease in attention, recall, and language scores. In the MOCA subitem analysis, WMH patients had lower scores in executive function, naming, attention, language, abstraction, and orientation (p < 0.05). Furthermore, subgroup analysis of NPI showed a higher incidence of delusions, depression, and apathy in the WMH group (p < 0.05). According to the hierarchical analysis of mild, moderate and severe dementia groups, the hypertension, leukoencephalopathy, Hcy level, Fazekas total score, PWMH and DWMH scores in the severe dementia group were significantly higher than those in the mild and moderate dementia groups (p < 0.05). As the disease progresses, more and more patients show increased white matter hyperintensity. White matter lesions are closely correlated with cognitive decline and psychobehavioral symptoms in AD patients, and may be used as an indicator of disease progression. Priority should be given to early screening and prevention of WMH-related risk factors.

Investigating Cortical Complexity in Mixed Dementia through Nonlinear Dynamic Analyses: A Resting-State EEG Study.

Objective: Dementia is a broad term referring to a decline in problem-solving abilities, language skills, memory, and other cognitive functions to a degree that it significantly disrupts everyday activities. The underlying cause of dementia is the impairment or loss of nerve cells and their connections within the brain. The particular symptoms experienced are contingent upon specific regions of the brain affected by this damage. In this research, we aimed to investigate the nonlinear dynamics of the mixed demented brain compared to healthy subjects using electroencephalogram (EEG) analysis. Method : For this purpose, EEG was recorded from 66 patients with mixed dementia and 65 healthy subjects during rest. After signal preprocessing, sample entropy and Katz fractal dimension analyses were applied to the preprocessed EEG data. Analysis of variance with repeated measures was utilized to compare the nonlinear dynamics of brain activity between dementia and healthy states and partial correlation analysis was employed to explore the relationship between EEG complexity measures and cognitive and neuropsychiatric symptoms of patients. Results: Based on repeated measures ANOVA, there was a significant main effect between groups for both Katz fractal dimension (F = 4.10, P = 0.01) and sample entropy (F = 4.81, P = 0.009) measures. Post hoc comparisons revealed that EEG complexity was significantly reduced in dementia mainly in the occipitoparietal and temporal areas (P < 0.05). MMSE scores were positively correlated with EEG complexity measures, while NPI scores were negatively correlated with EEG complexity measures, mainly in the occipitoparietal and temporal areas (P < 0.05). Moreover, using a KNN classifier, all significant complexity measures yielded the best classification performance with an accuracy of 98.05%, sensitivity of 97.03% and specificity of 99.16% in detecting dementia. Conclusion: This study demonstrated a unique dynamic system within the brain impacted by dementia that results in more predictable patterns of cortical activity mainly in the occipitoparietal and temporal areas. These abnormal patterns were associated with patients' cognitive capacity and neuropsychiatric symptoms.

Higher Discharge GCS Score is Associated with Both Survival and Long-term Functional Recovery in Patients with Clinically Defined Diffuse Axonal Injury

Abstract Background: Diffuse axonal injury (DAI) refers to widespread axonal damage due to traumatic brain injury. There are very few studies that have specifically looked at outcomes in patients with DAI, where the injury is not associated with accompanying focal lesions (such as haematomas and other mass lesions) or ischaemic brain injury. In this study, we assessed factors that predict mortality and long-term functional outcome of patients with DAI who underwent treatment and rehabilitation in a tertiary care hospital in South India. Methodology: Long-term outcome and neuropsychiatric sequelae were assessed in 160 patients with DAI, who underwent rehabilitation and were on regular follow-up for a median duration of 5 years (interquartile range = 3–6). Cox proportional hazards and logistic regression models were used to determine factors associated with mortality and functional outcome (Glasgow Outcome Scale-Extended [GOSE], Mayo-Portland Adaptability Inventory [MPAI] and Neuropsychiatric Inventory [NPI]). Results: Majority of the 160 patients included in this study were young males (92%) who presented with severe head injury (Glasgow Coma Scale [GCS] score of 5.6 ± 2.1). At the time of follow-up, 94 (58.75%) patients were alive, while 66 (41.25%) were dead. Patients who were alive at the time of follow-up were significantly younger, had higher GCS score and lower Rotterdam computed tomography (CT) grade at presentation compared to those who died. Compromised airway requiring tracheostomy (χ 2 = 21.3; P &lt; 0.001) and abnormal pupil reactivity (χ2 = 30.2, P &lt; 0.001) were significantly associated with mortality. GCS score at discharge was the single most important determinant of mortality (hazard ratio = 0.802, P &lt; 0.001). Among those who were alive, majority (73.4%) had good functional recovery (GOSE score 8). GCS scores (at admission and that at discharge) and Rotterdam CT score independently and significantly predicted MPAI, NPI and caregiver distress scores. Among them, GCS score at discharge was the strongest predictor. In-hospital improvement in GCS correlated with GOSE but not with MPAI and NPI. Conclusion: Higher GCS scores at discharge were strongly associated with both survival and functional recovery in patients with DAI.

ASSOCIATION OF BEHAVIORAL AND PSYCHOLOGICAL SYMPTOMS OF DEMENTIA WITH ADVERSE OUTCOMES POSTHOSPITALIZATION

Abstract In hospitalized persons with dementia, behavioral and psychological symptoms of dementia (BPSD), also known as behavioral symptoms of distress, are associated with increased morbidity, long-term care admissions, and reduced care partner well-being. The Fam-FFC study provided the opportunity to examine the association between BPSD severity and adverse, post-acute outcomes (falls, emergency department transfers, hospital admissions). Logistic regression analysis examined the association of behavioral symptoms (Neuropsychiatric Inventory Questionnaire, NPI) and odds of having a fall, emergency department transfer, and hospital admission, controlling for the intervention, and caregiver and patient characteristics. NPI scores decreased from admission (M = 7.81, SD = 6.12), to discharge (M = 6.4, SD = 5.93), to two months (M = 5.38, SD = 5.91), to six-month follow-up (M = 5.08, SD = 5.94). Higher admission NPI scores were associated with greater odds of experiencing at least one fall (OR = 1.067, p = 0.042) by discharge. Higher discharge NPI scores were associated with higher odds of ED transfer (OR = 1.062, p = 0.006) and at least one hospitalization (OR = 1.06, p = 0.008) after two months. Higher NPI scores at 2-month follow-up were associated with increased odds of ED transfer (OR = 1.062, p = 0.004), experiencing at least one injury (OR = 1.055, p = 0.031), falls (OR = 1.056, p = 0.012), and hospitalizations (OR = 1.065, p = 0.004) at six months. Results underscore the importance of providing interventions to reduce BPSD as a potentially modifiable risk factor to reduce adverse outcomes.

A comparative study of Amyloid positive and negative individuals with “Alzheimer Syndrome”

AbstractBackgroundOutside academic centres, the diagnosis of probable Alzheimer’s Disease remains a clinical diagnosis supported by basic blood work and structural brain imaging. It has already been documented, approximately 1/3rd of individuals meeting clinical criteria for probable AD, do not show underlying amyloidopathy on PET or cerebrospinal fluid. Thus, the clinical “Alzheimer Syndrome” encompasses individuals with abnormal amyloid (Amyloid positive: A+), as well as “amyloid negative” individuals lacking amyloidopathy. Finding ways to distinguish these subgroups clinically will become increasingly important as anti‐amyloid therapies become more available. It is not yet clear if these two groups have any clinical or imaging features that might distinguish them. Our objective was to find out if there are any clinical or imaging pointers towards amyloid biomarker status.MethodsA retrospective chart review of 23 patients screened for anti‐amyloid clinical trials was performed, of whom 13 were (A+) and 10 were (A‐). The following information was collected from the chart review‐ demography, medical history, clinical presentation, course of disease and rate of progression, neuropsychological test scores, blood work, brain scans, and any other relevant investigations. Relevant data were subjected to appropriate statistical analysis.ResultsThis is an ongoing study and the results are derived from interim analysis. Comparison of the (A+) and (A‐) groups revealed no statistically significant difference in terms of age, sex, amnestic presentation and cognitive decline rate. We did not find evidence (in this small group) that (A‐) subjects had a greater vascular load ‐ no difference in Hachinski score or Fazekas score. The only statistically significant difference between the groups was found in their NPI scores, with the A+ group showing a higher score (2.92 versus 0.80, p = 0.008).ConclusionAmyloid positive individuals are more likely to have neuropsychiatric manifestations during the course of their cognitive decline than their Amyloid negative counterpart. Work is ongoing to delineate biological and biomarker differences that account for the cortical dementia (Alzheimer Syndrome) in Amyloid negative subjects. Delineating differences in clinical presentation may prove useful in specifying which of these individuals are actually Amyloid positive. Confirmation in a larger group of subjects will be necessary.

FC1: Effect of Transcranial Direct Current Stimulation (tDCS) on Left Dorsolateral Prefrontal Cortex (DLPFC) in Dementia with Lewy Bodies (DLB)

Introduction:tDCS application to the DLPFC is associated with the improvements of executive function, memory enhancement, language, processing speed, global cognitive symptoms and apathy over time after treatment. DLB is the second most common form of degenerative dementia. There is no FDA-approved medications that can slow, stop or improve the progression of cognitive declines in DLB. Identifying effective treatments is a critical issue for DLB. In neuropathology, extracelluar α-syn oligomers interfere with the expression of long-term potentiation(LTP), and influence memory and learning. tDCS has been proposed to affect long-term synaptic plasticity through LTP and long-term depression, thereby improving cognitive ability. So far, only two studies have evaluated the effect of tDCS in DLB. In this pilot study, we investigate the effect of tDCS on left DLPFC in DLB.Method:Fourteen DLB aged 55-90 years (mean age 76.4, with 4 males and 10 females) were included in a double-blind, randomized, sham-controlled cross over design study. DLB diagnostics is according to DSM-5 criteria. CDR ratings for DLB participants ranged from 0.5 to 2. The active tDCS (or sham) process consists of daily sessions of active tDCS (or sham) for 10 consecutive days. The anodal electrode was placed over the left DLPFC and the cathodal electrode was placed over the right supraorbital area, with a current intensity of 2 mA and an electrode size of 25 cm2 for 30 min in a session. Before and after these treatment sessions, all subjects received a series of neuropsychological tests, including CDR, MMSE, CASI, NPI and WCST. Chi-square test, Wilcoxon signed ranks test and Mann-Whitney U test were used to assess differences in participant demographic characteristics and to compare differences among groups.Results:The active tDCS group showed significant improvements on the three items of CASI, ‘language ability’, ‘concentration and calculation’, ‘categorical verbal fluency’, after active stimulations. There is no improvement in MMSE, CASI, NPI and WCST scores in the sham groups.Conclusion:These results suggest that left DLPFC anodal, and right deltoid cathodal tDCS, may have some cognitive benefits in DLB. Larger-scale trials are needed to confirm the effect of tDCS in DLB.Key words: Transcranial Direct Current Stimulation, Dementia with Lewy Bodies, cognitive function, Wisconsin Card Sorting Test, left DLPFC

Validation of a Smartphone Pupillometry Application in Diagnosing Severe Traumatic Brain Injury.

The pupillary light reflex (PLR) is an important biomarker for the detection and management of traumatic brain injury (TBI). We investigated the performance of PupilScreen, a smartphone-based pupillometry app, in classifying healthy control subjects and subjects with severe TBI in comparison to the current gold standard NeurOptics pupillometer (NPi-200 model with proprietary Neurological Pupil Index [NPi] TBI severity score). A total of 230 PLR video recordings taken using both the PupilScreen smartphone pupillometer and NeurOptics handheld device (NPi-200) pupillometer were collected from 33 subjects with severe TBI (sTBI) and 132 subjects who were healthy without self-reported neurological disease. Severe TBI status was determined by Glasgow Coma Scale (GCS) at the time of recording. The proprietary NPi score was collected from the NPi-200 pupillometer for each subject. Seven PLR curve morphological parameters were collected from the PupilScreen app for each subject. A comparison via t-test and via binary classification algorithm performance using NPi scores from the NPi-200 and PLR parameter data from the PupilScreen app was completed. This was used to determine how the frequently used NPi-200 proprietary NPi TBI severity score compares to the PupilScreen app in ability to distinguish between healthy and sTBI subjects. Binary classification models for this task were trained for the diagnosis of healthy or severe TBI using logistic regression, k-nearest neighbors, support vector machine, and random forest machine learning classification models. Overall classification accuracy, sensitivity, specificity, area under the curve, and F1 score values were calculated. Median GCS was 15 for the healthy cohort and 6 (interquartile range 2) for the severe TBI cohort. Smartphone app PLR parameters as well as NPi from the digital infrared pupillometer were significantly different between healthy and severe TBI cohorts; 33% of the study cohort had dark eye colors defined as brown eyes of varying shades. Across all classification models, the top performing PLR parameter combination for classifying subjects as healthy or sTBI for PupilScreen was maximum diameter, constriction velocity, maximum constriction velocity, and dilation velocity with accuracy, sensitivity, specificity, area under the curve (AUC), and F1 score of 87%, 85.9%, 88%, 0.869, and 0.85, respectively, in a random forest model. The proprietary NPi TBI severity score demonstrated greatest AUC value, F1 score, and sensitivity of 0.648, 0.567, and 50.9% respectively using a random forest classifier and greatest overall accuracy and specificity of 67.4% and 92.4% using a logistic regression model in the same classification task on the same dataset. The PupilScreen smartphone pupillometry app demonstrated binary healthy versus severe TBI classification ability greater than that of the NPi-200 proprietary NPi TBI severity score. These results may indicate the potential benefit of future study of this PupilScreen smartphone pupillometry application in comparison to the NPi-200 digital infrared pupillometer across the broader TBI spectrum, as well as in other neurological diseases.

Effect of need-based care on behavioural and psychological symptoms in residents with dementia and formal caregivers' distress in nursing homes: a three-arm cluster randomized controlled trial.

To evaluate to what extent the standardized concept of need-based care on Behavioural and Psychological Symptoms of Dementia (BPSD), and formal caregiver distress, is superior when compared to spending more time or standard care with residents with BPSD. A longitudinal cluster randomized controlled study in 23 nursing homes in Belgium with 3 parallel groups was set up. A total of 481 residents with dementia participated. Formal caregivers in the need-based care group treated residents who displayed agitated or aggressive behaviour with a non-pharmacological intervention, tailored to unmet needs, twice a week with re-evaluation every 8weeks. In the time group, formal caregivers spent 'extra time'. In the standard care group, it was 'care as usual'. Outcomes were measured at four different time points with the Doloplus-2 (to assess pain behaviour), Cohen-Mansfield Agitation Inventory (CMAI) for agitation, the Neuropsychiatric Inventory (NPI-NH) for BPSD and formal caregivers' distress. Need-based interventions had a significant effect on residents' levels of pain behaviour. In the need-based care group, scores on overall BPSD (agitation and aggression, depression, euphoria, irritability, sleep and night-time behaviour) improved significantly from baseline when compared to other timepoints. No significant different interactions over time were found between all three groups for categorized versions of NPI scores (ever versus never). Need-based care reduced the level of BPSD in residents with dementia as well as formal caregivers' distress. The study supports the importance of tailored non-pharmacological interventions in the residential care for people with dementia. Trial registration number B300201942084 (18/11/2019).

Quantitative Pupillometry Values are Remarkably Similar Before and After Neuroimaging

BackgroundAutomated assessment of the pupillary light reflex (PLR) is becoming more mainstream, yet there is much to learn about the correlations between automated PLR metrics and standard practice. This study explores the feasibility and potential value of assessing PLR using quantitative pupillometry (QP) in patients with critical neurologic illness before and after neuroimaging. MethodsPLR assessments using QP were taken within 30 minutes before and 30 minutes after computerized tomography (CT) or magnetic resonance imaging (MRI) on patients in the neuroscience intensive care unit. ResultsFifty patients were enrolled. The neurological pupil index (NPi®) was 3.98 (1.12) in the right eye and 3.96 (1.0) in the left eye before imaging, and 4.13 (1.08) in the right eye and 4.08 (0.93) in the left eye after imaging. Although the before and after difference in the left eye was a statistically significant (p < .01), these differences were not clinically relevant. Roughly 8% of subjects showed improvement in NPi scores from abnormal (<3.0) before imaging, to normal (>3.0) after. ConclusionObtaining QP readings before and after neuroimaging is feasible and safe. Yet, these data suggest it may not be necessary to obtain pre-QP and post-QP readings when the NPi is normal before CT or MRI.

Cognitive Trajectories Following Acute Infection in Older Patients With and Without Cognitive Impairment: An 1-Year Follow-Up Study.

Introduction: Dementia is a known risk factor for both delirium and acute systemic infections which may also play a significant role in promoting or accelerating neurodegenerative disease. Infections are both the main causes of hospitalization of dementia patients and can be a major precipitant of delirium but currently it is not possible to predict the risk of cognitive decline in older patients exposed to acute infection.Objectives: We aimed to determine the level of cognitive change at 1-year follow up in individuals with different patterns of cognitive function (dementia, delirium, delirium superimposed on dementia) at the time of their hospitalization due to a systemic infection and to correlate these cognitive patterns with clinical status variables.Methods: We recruited 53 hospitalized geriatric patients with a systemic infection, and we collected 12-months follow up data for 34 patients. These patients were classified in four groups: no cognitive impairment (controls—C), delirium only (D), dementia only (Dem), and delirium superimposed to dementia (DD). Cognitive performance was measured by change in score on the Montreal Cognitive Assessment (MoCA) and delirium was identified using Confusion Assessment Measure (CAM). We examined performance on the MoCA in the first year after hospitalization, controlling for demographic characteristics, coexisting medical conditions, and type of infection.Results: For the 34 patients to whom follow-up data was available, delirium presence in individuals with prior dementia (DD group) was associated with a negative mean change score of 3-point (p < 0.02) at 1 year follow up, whereas dementia patients without delirium had a mean change score of 1.5-point lower at 12-months (p = 0.04), when comparing follow-up and baseline MoCA scores. Cognitively healthy patients did not significantly decrease their MoCA score at follow-up (p = 0.15). MoCA and NPI scores during hospitalization were significantly correlated with the level of cognitive decline in the four groups (r = 0.658, p < 0.01 and r = 0.439, p = 0.02, respectively).Conclusions: Premorbid dementia and delirium superimposed on dementia during hospitalization in older patients with acute infections predict cognitive decline at 1 year following admission. Taken together, our findings suggest a pathophysiological interaction between neurodegenerative changes, acute infection, and delirium.

The Positive Effects of Pet Ownership on Alzheimer's Disease.

Human-animal interactions are known to have many beneficial psychosocial and psychophysiological effects on persons with and without medical health conditions. There are no previous prospective studies with long follow-up times on the effects of domestic pets on the persons with Alzheimer's disease (AD) living at home. To investigate the effects of pets on the activities of daily living (ADL), disease progression, and neuropsychiatric symptoms (NPS) during a five-year follow-up on the persons with AD. Altogether 223 home-dwelling persons (mean age 75.2 years) with very mild (CDR 0.5) or mild (CDR 1) AD at baseline were included for this study. ADCS-ADL, NPI, MMSE, and CDR-SOB were measured at baseline, annually for three years and after five years. Totally 40 (17.9%) participants had a pet. At the baseline, pet owners and non-pet owners had no significant differences in age, gender, or the ADCS-ADL, NPS, and CDR-SOB scores, while MMSE was lower in pet owners than non-pet owners (20.2 versus 21.7; p = 0.009). Over the follow-up, pet owners had significantly better mean ADCS-ADL (57.5 versus 54.0; p = 0.031), NPI (9.3 versus 13.0; p = 0.038), and CDR-SOB scores (5.7 versus 6.6; p = 0.004) compared to non-pet owners. The differences in the MMSE scores between the groups detected at baseline attenuated over time. Significant positive effects of the pets on ADL functions, NPS, and disease progression were detected over the whole follow-up suggesting that having a pet may support daily activity and slow the disease progression in AD.

Encouraging interim results at 9 months from an open‐label study of simufilam in patients with Alzheimer’s disease

AbstractBackgroundSimufilam is a novel drug candidate for Alzheimer’s disease (AD). This small molecule reverses an altered conformation of filamin A in the AD brain, reducing tau hyperphosphorylation and neuroinflammation initiated by Aβ42. In a prior randomized, controlled trial in 64 patients with mild‐to‐moderate AD, simufilam significantly improved eleven CSF biomarkers of AD pathology, neurodegeneration, neuroinflammation and blood‐brain barrier integrity over 28 days, with no safety issues. A one‐year, open‐label, multi‐center study is now evaluating simufilam’s long‐term safety and tolerability and following cognition and neuropsychiatric symptoms of dementia. The study has pre‐planned interim analyses at 6 and 9 months.MethodApproximately 150 patients with mild‐to‐moderate AD, MMSE 16 to 26, will be enrolled across 16 sites in the US and Canada. Study participants receive 100 mg twice‐daily oral simufilam for one year. In addition to safety, patients are assessed on the 11‐item Alzheimer's Disease Assessment Scale‐Cognitive Subscale (ADAS‐Cog11) and the 10‐item Neuropsychiatric Inventory (NPI10).ResultInterim results summarize data from the first 50 patients to complete at least 9 months of treatment. Simufilam was safe and well‐tolerated, consistent with prior safety results. Six months of treatment improved patients’ cognition scores by ‐1.6 points on ADAS‐Cog11, a 10% mean improvement from baseline (negative score indicates improvement). At 9 months, ADAS‐Cog11 scores improved by ‐3.0 points, a 19% mean improvement from baseline. At 9 months, 69% of patients showed improved or stable ADAS‐Cog11 scores from baseline. Mean baseline ADAS‐Cog11 score for these 50 patients was 16. Mean baseline MMSE was 22. Six months of treatment also improved NPI scores by ‐1.3 points, a 29% mean improvement from baseline (negative score indicates improvement). At 9 months, NPI scores improved by ‐0.7 points, a 16% mean improvement from baseline. At 9 months, 76% of patients showed improved or stable NPI scores from baseline. Mean baseline NPI10 score was 4.5.ConclusionInterim analyses at 6 and 9 months indicate open‐label treatment with simufilam 100 mg improved scores of cognition and neuropsychiatric symptoms in patients with Alzheimer’s disease, with no safety issues. This work was funded by NIA grant AG065152.

Atrophy in dopaminergic pathways is associated with emergence of delusions in patients with Alzheimer’s disease

AbstractBackgroundPeople with advanced Alzheimer’s disease (AD) may present with delusions that are associated with worse quality of life and prognosis. However, early markers of delusions have not been identified yet. The present study aimed to investigate whether differences in cognitive and grey matter (GM) volume decline can be detected in the year before symptom onset between patients with AD who will and will not develop delusions.MethodTwo samples of patients with AD, 63 who will (AD‐D) and 63 who will not develop delusions (AD‐ND) over a year as recorded by means of the NPI, were identified from the Alzheimer’s Disease Neuroimaging Initiative (ADNI) database and matched for diagnosis, cognitive status, age, education, sex, handedness and APOE genotype. Sixty‐three additional matched healthy controls (HC) were selected. Group‐by‐time models were used to compare cognitive and clinical data across groups, as well as GM maps by means of VBM. Change in NPI scores was used as covariate. Post hoc analyses were performed to investigate AD‐D vs AD‐ND differences in volume decline in areas found to be more atrophic in the AD‐D group and in brainstem nuclei connected to these areas.ResultNo neurocognitive differences were observed between patient groups either prior to or at symptom onset. When the two patient groups were compared to HC, the AD‐ND showed no greater atrophy over time while greater atrophy in the left caudate was observed in the AD‐D group. Post hoc analyses revealed greater GM loss in the AD‐D group in both caudate bodies and dopaminergic nuclei (i.e. the substantia nigra and the ventral tegmental area), but not in serotoninergic nuclei.ConclusionPatients with AD who will develop delusion showed faster neurodegeneration prior to symptom onset in dopaminergic systems, especially in the nigrostriatal pathway. Therefore, alterations in dopamine neurotransmission due to AD‐related pathology may explain the emergence of delusional thoughts in this population, consistently with the dopaminergic hypothesis of positive symptoms in schizophrenia.

407 Requesting, Treatment and Outcomes Following Oncotype DX Testing in Breast Cancer

Abstract Aim Oncotype DX (ODX) is a 21-gene assay for invasive breast cancer that yields a recurrence score (RS) value which indicates the risk of distant recurrence and the benefit from chemotherapy. NICE has laid down guidance regarding the criteria for test requesting which include having early breast cancer at an intermediate risk of distant recurrence that is ER-positive, HER2-negative and LN-negative. The aim of this study was to determine whether ODX was appropriately requested and followed. Treatment and outcomes were also observed. Method The study included all patients from The Countess of Chester Hospital who had undertaken ODX testing in the years 2015-2017. Patients were identified and clinicopathological data was obtained from clinic notes and pathology reports. NPI and PREDICT scores were calculated. The ODX original cut-off values were used. Results All 65 patients included in the study were ER-positive, 1 was HER2-positive and 1 was LN-positive. 9 patients had ODX requested inappropriately, all of which were low risk on both NPI and PREDICT. Chemotherapy was received by 1/32 low risk patients (RS 0-17), 6/24 intermediate risk patients (RS 18-30) and 5/5 high risk patients (RS 31-100). 57 patients had no recurrence, 2 patients had local recurrence (intermediate RS), 1 patient had distant recurrence (low RS) and 1 patient had metastasis (low RS). Chemotherapy was not received by any of the patients who experienced recurrence. Conclusions Adherence to NICE guidance regarding ODX requesting needs further emphasising. This would help reduce unnecessary patient investigation, costs, and pathology-lab workload.

The efficacy and safety of zolpidem and zopiclone to treat insomnia in Alzheimer's disease: a randomized, triple-blind, placebo-controlled trial.

No prior studies have evaluated the efficacy and safety of zolpidem and zopiclone to treat insomnia of demented patients. This randomized, triple-blind, placebo-controlled clinical trial used these drugs to treat patients with probable, late onset Alzheimer's dementia (AD) (DSM V and NINCDS-ADRDA criteria) exhibiting insomnia (DSM V criteria and nocturnal NPI scores ≥ 2). Actigraphic records were performed for 7 days at baseline and for 14 days during the treatment period in 62 patients aged 80.5 years in average and randomized at a 1:1:1 ratio for administration of zolpidem 10 mg/day, zopiclone 7.5 mg/day or placebo. Primary endpoint was the main nocturnal sleep duration (MNSD), whereas secondary outcomes were the proportion of the night time slept, awake time after sleep onset (WASO), nocturnal awakenings, total daytime sleep time and daytime naps. Cognitive and functional domains were tested before and after drug/placebo use. Three participants under zopiclone use had intervention interrupted due to intense daytime sedation and worsened agitation with wandering. Zopiclone produced an 81 min increase in MNSD (95% confidence interval (CI): -0.8, 163.2), a 26 min reduction in WASO (95% CI: -56.2, 4.8) and a 2-episode decrease in awakening per night (95% CI: -4.0, 0.4) in average compared to placebo. Zolpidem yielded no significant difference in MNSD despite a significant 22 min reduction in WASO (95% CI: -52.5, 8.3) and a reduction of 1 awakening each night (95% CI: -3.4, 1.2) in relation to placebo. There was a 1-point reduction in mean performance in the symbols search test among zolpidem users (95% CI: -4.1, 1.5) and an almost eight-point reduction in average scores in the digit-symbol coding test among zopiclone users (95% CI: -21.7, 6.2). In summary, short-term use of zolpidem or zopiclone by older insomniacs with AD appears to be clinically helpful, even though safety and tolerance remain issues to be personalized in healthcare settings and further investigated in subsequent trials. This trial was registered in ClinicalTrials.gov Identifier: NCT03075241.

Narcissistic personality traits and prefrontal brain structure

Narcissistic traits have been linked to structural and functional brain networks, including the insular cortex, however, with inconsistent findings. In this study, we tested the hypothesis that subclinical narcissism is associated with variations in regional brain volumes in insular and prefrontal areas. We studied 103 clinically healthy subjects, who were assessed for narcissistic traits using the Narcissistic Personality Inventory (NPI, 40-item version) and received high-resolution structural magnetic resonance imaging. Voxel-based morphometry was used to analyse MRI scans and multiple regression models were used for statistical analysis, with threshold-free cluster enhancement (TFCE). We found significant (p < 0.05, family-wise error FWE corrected) positive correlations of NPI scores with grey matter in multiple prefrontal cortical areas (including the medial and ventromedial, anterior/rostral dorsolateral prefrontal and orbitofrontal cortices, subgenual and mid-anterior cingulate cortices, insula, and bilateral caudate nuclei). We did not observe reliable links to particular facets of NPI-narcissism. Our findings provide novel evidence for an association of narcissistic traits with variations in prefrontal and insular brain structure, which also overlap with previous functional studies of narcissism-related phenotypes including self-enhancement and social dominance. However, further studies are needed to clarify differential associations to entitlement vs. vulnerable facets of narcissism.

Staging computerized tomography before delayed breast reconstruction could alter the management plan

Delayed breast reconstruction (DBR) comprises a significant proportion of breast reconstruction practice post completion of breast cancer treatment. The tumour's biology, staging, time constraints, ongoing treatment, and patient and surgeon's preference influence the decision to pursue DBR. There are no guidelines for assessing the oncological status before DBR in otherwise asymptomatic patients, particularly in those with a higher risk of recurrence. The purpose of this study was to identify the cohort of patients who could potentially benefit from staging CT scan before DBR regardless of the reconstructive modality and its impact on the overall management. A retrospective review on 207 consecutive patients, who underwent staging CT scan before DBR in the period between 2009 and 2019 was performed. The CT scan findings were correlated with the breast prognostication scoring model (Nottingham Prognostic Index [NPI]) as an indicator factor for staging reasons. Incidental findings were reported in 34% (71/207) of the reviewed CT scans (incidentaloma group). There was no statistical significance in the NPI scores between non incidentaloma and incidentaloma groups. However, 5.7% (12/207) had their DBR procedure cancelled or the surgical plan altered. The patients with moderate to poor prognosis (NPI score 3.4 and above) could benefit from CT staging scan before DBR. This scan could detect adverse prognostic features precluding major surgery, which saves patients from unnecessary surgical risks and discomfort, and direct them towards the relevant management pathway.

Egos deflating with the Great Recession: A cross-temporal meta-analysis and within-campus analysis of the Narcissistic Personality Inventory, 1982–2016

Scholars posit that economically prosperous times should produce higher individualism and narcissism, and economically challenging times lower individualism and narcissism. This creates the possibility that narcissism among U.S. college students, which increased between 1982 and 2009, may have declined after the Great Recession. Updating a cross-temporal meta-analysis of the Narcissistic Personality Inventory to 2013 (k = 164, N = 35,095) and adding two within-campus analyses to 2015 (Study 2: UC Davis, N = 58,287) and 2016 (Study 3: U South Alabama, N = 14,319) revealed a non-monotonic pattern, with increases in NPI scores between 1982 and 2008 and declines thereafter. The decline in NPI scores during and after the recession took narcissism back to their original levels in the 1980s and 1990s. Implications for the interplay between economic conditions and personality traits are discussed.

Rates of 1-year cognitive impairment in older adults who developed delirium due to a systemic infection

IntroductionDelirium affects a significant proportion of hospitalized older patients with acute infections. There is growing evidence that delirium accelerates the cognitive decline at long term.ObjectivesWe aimed to determine if delirium during hospitalization was independently associated with cognitive deterioration at one-year.MethodsFrom a total of 22 patients (12 C, 4 Dem, 2 D, and 4 DD) delirium (D and DD groups) was associated with a worse score in MOCA of 3-points (p&lt;.02) and 2.5-points (p&lt;.03), respectively, at one year, follow up. Dementia patients without delirium had a decrease of 2-point (p=.04) while cognitively healthy patients had a decrease in 1.08 points (p=.05) (Graph1). MOCA and NPI scores during hospitalization correlated significantly with cognitive decline in the four groups (r=.658, p&lt;.01 and r=.439, p=.02, respectively.)ResultsFrom a total of 22 patients (12 C, 4 Dem, 2 D and 4 DD) delirium (D and DD groups) was associated with a worse score in MOCA of 3-points (p&lt;.02) and 2.5-points (p&lt;.03), respectively, at one year follow up. Dementia patients without delirium had a of 2-point (p=.04) while cognitively healthy patients had a decrease in 1.08 points (p=.05) (Graph1). MOCA and NPI scores during hospitalization correlated significantly with cognitive decline in the four groups (r=.658, p&lt;.01 and r=.439, p=.02, respectively.)ConclusionsIndividuals developing delirium while recovering from infection have higher rates of cognitive decline after one year, but the cognitive decline is also present to a lower extent for individuals with infections that did not develop delirium.DisclosureNo significant relationships.

Evaluating technology‐based reminiscence for engagement and socialization in aged care: Time travelling with technology

AbstractBackgroundTechnology offers promise of increased engagement with individuals in aged care. Reminiscence therapy (RT) stimulates discussion of past events and experiences (Woods, et al., 2018). Google Earth and Street View on a large display is readily available technology to support reminiscence. In this study, technology‐enhanced RT is operationalized as dynamic images panning the environment (High‐Tech condition), compared with static images (Low‐Tech/control condition). Behaviour and cognition were appraised pre and post the 6‐week intervention (called Time Travelling with Technology) using the NPI‐NH and discourse interviews to measure communication. If technology‐enhanced RT supports engagement, then NPI and communication scores will not worsen when pre and post intervention scores are compared.MethodParticipants were nine clients (8 female, mean age: 79, range: 72‐90, SD: 6.892) at an aged care day respite facility in Sydney, Australia, with comparable MMSE scores. Using a repeated measures and counterbalanced design, the High‐Tech and Low‐Tech condition each ran for 6 weeks, separated by a 3‐week break. The weekly sessions consisted of groups of 2‐4 clients for approximately 30 minutes. Each session displayed locations of significance to the clients on a flat screen television. Before and after the intervention, NPI‐NH and discourse interviews (Chapman, et al., 2004) were administered.ResultAttendance was consistently high across the program (79%). Comparing pre‐ to post‐intervention, NPI‐NH scores did not worsen in either Low‐Tech (p=0.92) or High‐Tech (p=0.74) conditions. There was no significant effect of intervention or technology on communication scores, ps&gt;0.25. Inter‐rater reliability in scoring discourse interviews was positive and strong, r(7) = 0.95, p &lt; 0.0001.ConclusionThe attendance rate highlights the feasibility and enjoyment of the Time Travelling with Technology program. No deterioration in NPI‐NH or communication across the program supported the hypothesis. While cautious interpretation is needed, these data are encouraging. Data collection from a larger sample for greater statistical power is underway. Further measures of engagement such as facial expressions and language change over time will also be reported.