scholarly journals The Evolving Role of Ophthalmology Clinics in Screening for Early Alzheimer’s Disease: A Review

Vision ◽  
2020 ◽  
Vol 4 (4) ◽  
pp. 46
Author(s):  
Paris Dickens ◽  
Kanna Ramaesh

Alzheimer’s disease (AD) is the leading cause of dementia, which is a growing public health concern. Although there is no curative treatment for established AD, early recognition and modification of the known risk factors can reduce both severity and the rate of progression. Currently, an early diagnosis of AD is rarely achieved, as there is no screening for AD. The cognitive decline in AD is gradual and often goes unnoticed by patients and caregivers, resulting in patients presenting at later stages of the disease. Primary care physicians (general practitioners in the UK) can administer a battery of tests for patients presenting with memory problems and cognitive impairment, however final diagnosis of AD is usually made by specialised tertiary level clinics. Recent studies suggest that in AD, visuospatial difficulties develop prior to the development of memory problems and screening for visuospatial difficulties may offer a tool to screen for early stage AD. AD and cataracts share common risk and predisposing factors, and the stage of cataract presentation for intervention has shifted dramatically with early cataract referral and surgical intervention becoming the norm. This presentation offers an ideal opportunity to administer a screening test for AD, and visuospatial tools can be administered at post-operative visits by eye clinics. Abnormal findings can be communicated to primary care physicians for further follow up and assessment, or possible interventions which modify risk factors such as diabetes, hypertension and obesity can be undertaken. We propose that eye clinics and ophthalmology facilities have a role to play in the early diagnosis of AD and reducing the burdens arising from severe dementia.

2018 ◽  
Vol 94 (1117) ◽  
pp. 647-652 ◽  
Author(s):  
Georges Assaf ◽  
Maria Tanielian

Dementia is projected to become a global health priority but often not diagnosed in its earlier preclinical stage which is mild cognitive impairment (MCI). MCI is generally referred as a transition state between normal cognition and Alzheimer’s disease. Primary care physicians play an important role in its early diagnosis and identification of patients most likely to progress to Alzheimer’s disease while offering evidenced-based interventions that may reverse or halt the progression to further cognitive impairment. The aim of this review is to introduce the concept of MCI in primary care through a case-based clinical review. We discuss the case of a patient with MCI and provide an evidence-based framework for assessment, early recognition and management of MCI while addressing associated risk factors, neuropsychiatric symptoms and prognosis.


1997 ◽  
Vol 9 (S1) ◽  
pp. 163-165 ◽  
Author(s):  
Serge Gauthier ◽  
Isabelle Gélinas ◽  
Louise Gauthier

Functional impairment is a core symptom of Alzheimer's disease. The most accurate indicator of functional impairment is the decline in performance of Activities of Daily Living (ADL). Several scales have been used to measure ADL in geriatric and Alzheimer's disease (AD) populations including the Disability Assessment for Dementia (DAD). The key to making a correct differential diagnosis between benign cognitive impairment and dementia is the detection of a decline in functioning. The instrumental ADL (IADL) relevant items of the DAD could provide crucial guidance in the diagnosis of early stage AD for primary care physicians. It is anticipated that the role of primary care physicians, already essential for the management of the AD patient, will expand to include the diagnosis of earlier cases and the prescription of cholinergic drugs as treatment. ADL assessment tools such as the DAD may help their tasks.


2011 ◽  
Vol 6 (1) ◽  
pp. 21
Author(s):  
Hélène Villars ◽  
Bruno Vellas ◽  
◽  

The increased incidence of Alzheimer’s disease (AD) and related dementias in European and other northern countries is creating a real challenge for primary care providers. Primary care physicians (PCPs) must follow the general objectives of identifying dementia and allowing early diagnosis, disclosing diagnosis to both the patient and his or her family, preventing and treating, if possible, the complications of AD (falls, malnutrition and behavioural and psychological symptoms) and implementing a follow-up plan. It is essential for PCPs to develop interactions with specialist physicians and community professionals who intervene in the management of AD patients. The need for better education and training programmes for PCPs has been demonstrated in the literature in both the early diagnosis and management of AD. Clear guidelines specifically addressed to PCPs are needed.


2020 ◽  
Author(s):  
◽  
Raymond Romano ◽  

The burden of Alzheimer’s disease (AD) affects not just the individual but also families, providers, and society. Early recognition and diagnosis of AD may reduce cost by reducing interaction with the health care system, earlier initiation of treatment, and prolonging time to long- term care. Primary care providers, the first contact for diagnosis of patients with AD, are not fulfilling the potential of early diagnosis for a variety of reasons. Biomarkers of AD emerge on average 15 to 20 years before clinical diagnosis, yet currently established biomarkers are not easily available in the primary care setting. A growing body of literature is focused on identifying additional non-invasive early signs of AD. The aims of this program of research were to understand factors contributing to the AD diagnosis variability in primary care settings and methods to improve early diagnosis by primary care providers. Four studies were undertaken to achieve these aims. The first study reported the results of an integrated review estimating the prevalence of missed diagnosis in primary care when compared to trained raters’ diagnoses. The findings call to attention the difficulty primary care providers face to detect and diagnose AD at all levels of the healthcare system. This led to the second study. Chronic pain is a common comorbid ailment seen in those with AD and often is a driving factor of patients seeking medical care. In order to understand the pain experience in those with worsening cognition, the second study was a secondary analysis of a cross-sectional age- and sex-matched two group cohort study and found that the experience of pain differs between males and females as a measure of cognition worsened suggesting a possible role of pain as a tool to distinguish those at risk for AD. This finding led to the third study, which was a narrative review conducted to describe how alterations in senses have been associated with the diagnosis of AD. The results suggested differences in smell, taste, vision, hearing, and proprioception were associated with different levels of the AD continuum but points out an obvious gap in the literature concerning other senses. This led to the fourth study examining evidence that the ε4 allele of Apolipoprotein E modifies the experience of pain in those individuals carrying the allele such that greater temperatures are required to elicit pain and the experience of that pain is more unpleasant. Additional studies should expand on the results of this pilot study.


2009 ◽  
Vol 21 (S1) ◽  
pp. S44-S52 ◽  
Author(s):  
Debra L. Cherry ◽  
Carol Hahn ◽  
Barbara G. Vickrey

ABSTRACTThis paper presents a strategy for training primary care physicians in the identification, diagnosis and management of Alzheimer's disease and related disorders. The strategy uses evidence-based practice guidelines to establish quality benchmarks and then provides training and other interventions to improve the quality of care received by these patients. The three projects described in this paper assumed that training of primary care physicians alone would not be sufficient to achieve the quality benchmarks derived from guidelines. The projects used creative training strategies supplemented by provider “tool kits”, provider checklists, educational detailing, and endorsement from organizational leadership to reinforce what the primary care providers learned in educational sessions. Each project also implemented a system of dementia care management to “wrap around” traditional primary care to ensure that quality benchmarks would be achieved. Outcomes of two completed studies support the premise that it is possible to improve quality of dementia care through physician education that occurs in association with a coordinated system of dementia care management and in collaboration with community agencies to access guideline-recommended social services.


2011 ◽  
Vol 23 (10) ◽  
pp. 1623-1631 ◽  
Author(s):  
Marja-Liisa Laitinen ◽  
J. Simon Bell ◽  
Piia Lavikainen ◽  
Eija Lönnroos ◽  
Raimo Sulkava ◽  
...  

ABSTRACTBackground: Antipsychotics continue to be widely used in the treatment of behavioral and psychological symptoms of dementia despite their limited effectiveness and well-known risks, including increased mortality. Our aim was to investigate the national pattern of antipsychotic use among community-dwelling persons with and without Alzheimer's disease (AD) in Finland.Methods: The Social Insurance Institution of Finland (SII) identified all persons with a verified diagnosis of AD in Finland on 31 December 2005. A control for each person with AD, matched in terms of age, sex and region of residence, was also identified. Data on reimbursed drug purchases in 2005 were extracted from the Finnish National Prescription Register. Conditional logistic regression analysis was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs) for the use of antipsychotics.Results: The study population comprised 28,089 matched pairs of persons with and without AD (mean age 80.0 years, SD 6.8, 32.2% men). The annual prevalence of antipsychotic use was higher among persons with than without AD (22.1% vs. 4.4%, adjusted OR = 5.91; 95% CI 5.91–6.31). Among persons with AD, the prevalence of antipsychotic use was similar across all age groups. Of the antipsychotic users, 85.2% with AD and 51.3% without AD purchased second generation antipsychotics. Most antipsychotic prescriptions – 67.8% in the AD and 62.9% in the non-AD group – were generated in primary care situations.Conclusion: One-fifth of persons with AD used antipsychotic drugs. Antipsychotic use was six times more prevalent among persons with AD than without AD. Most antipsychotics were prescribed by primary care physicians.


2020 ◽  
Vol 15 (4) ◽  
pp. 231-238
Author(s):  
Natalia Gavrilova ◽  
◽  
Nikita Gladyshev ◽  
Anna Kotrova ◽  
Anastasiia Morozova ◽  
...  

Dementia and, in particular, Alzheimer’s disease (AD), affects millions of people around the world and its prevalence is steadily rising annually. Some risk factors for AD, such as age, cannot be modified, while others could possibly be corrected. In recent years, many studies are tackling the problem of the oral and gut microbiota as a provoking factor for AD and other neurodegenerative diseases, but their relationship and specific pathophysiological mechanisms remain understudied. The microbiota of the oral cavity can be of particular importance due to the specificity of microorganisms and their localization, as well as the possibility of provoking neuroinflammation, which requires further study. This review covers the specific features of the oral microbiota, current views on the pathophysiological role of the oral microbiota in the development of AD, as well as the beneficial role of probiotics. The study of this issue can have an important practical application both for the early diagnosis of AD, and for its further treatment.


2020 ◽  
Author(s):  
Szabolcs Garbóczy ◽  
Éva Magócs ◽  
Gergő Szőllősi ◽  
Szilvia Harsányi ◽  
Égerházi Anikó ◽  
...  

Abstract BACKGROUND Alzheimer's Disease (AD) is a growing disease process with aging. If we could recognize the disease at an early stage and increase the number of years spent in a better condition through preventive and treatment measures, we could reduce the pressure both directly on families and indirectly on society. There is a need for testing methods that are easy to perform even in general practitioner’s office, inexpensive and non-invasive, which could help early recognition of mental decline. We have selected Test Your Memory (TYM), which has proven to be reliable for detecting AD and mild cognitive impairment (MCI) in several countries. Our study was designed to test the usability of the TYM-HUN comparing with the ADAS-Cog (Alzheimer's Disease Assessment Scale-Cognitive Subscale) in MCI recognition in the Hungarian population. METHODS TYM test was translated and validated into Hungarian (TYM-HUN). The TYM-HUN test was used in conjunction with and compared with the Mini-Mental State Examination (MMSE) and the ADAS-Cog. For our study, 50 subjects were selected, 25 MCI patients and 25 healthy controls. Spearman’s rank correlation was used to analyze the correlation between the scores of MMSE and ADAS-Cog with TYM-HUN. RESULTS MCI can be distinguished from AD and normal aging using ADAS-Cog and MMSE is a useful tool to detect dementia. We established a 'cut-off' point of TYM-HUN (44/45points) where optimal sensitivity and specificity values were obtained to screen MCI. The total TYM-HUN scores significantly correlated with the MMSE scores (ρ=0.626; p<0.001) and ADAS-Cog scores (ρ=-0.723; p<0.001). CONCLUSIONS Our results showed that the Hungarian version of TYM (TYM-HUN) is an easy, fast, self-administered questionnaire with the right low threshold regarding MCI and can be used for the early diagnosis of cognitive impairment.


2019 ◽  
Vol 20 (21) ◽  
pp. 5403 ◽  
Author(s):  
Virginie Bottero ◽  
Judith A. Potashkin

Background: Dementia is a major public health concern affecting approximately 47 million people worldwide. Mild cognitive impairment (MCI) is one form of dementia that affects an individual’s memory with or without affecting their daily life. Alzheimer’s disease dementia (ADD) is a more severe form of dementia that usually affects elderly individuals. It remains unclear whether MCI is a distinct disorder from or an early stage of ADD. Methods: Gene expression data from blood were analyzed to identify potential biomarkers that may be useful for distinguishing between these two forms of dementia. Results: A meta-analysis revealed 91 genes dysregulated in individuals with MCI and 387 genes dysregulated in ADD. Pathway analysis identified seven pathways shared between MCI and ADD and nine ADD-specific pathways. Fifteen transcription factors were associated with MCI and ADD, whereas seven transcription factors were specific for ADD. Mir-335-5p was specific for ADD, suggesting that it may be useful as a biomarker. Diseases that are associated with MCI and ADD included developmental delays, cognition impairment, and movement disorders. Conclusion: These results provide a better molecular understanding of peripheral changes that occur in MCI and ADD patients and may be useful in the identification of diagnostic and prognostic biomarkers.


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