Is Thalamic Lesion a Contributing Factor for Inappropriate Sexual Behavior in Older Adults with Cognitive Impairment?

Thalamus is a group of nuclei located deep inside the brain, well known for its sensory and cognitive functions. However, its role in the reward and behavior regulation is less explored. In this case series, we have presented four cases with inappropriate sexual behaviors (ISB) that are temporally related to thalamic infarction. We have discussed about the limbic part of thalamus and its extensive connections with other regions in regulating sexual behaviors. Although in all the four cases described there was underlying cognitive impairment that can itself increase the risk of ISB, there was potential contributing role of thalamic lesions.

Companionship and Sexual Issues in the Aging Population.

Loneliness and social isolation are significant public health crises in older adults. The issues about companionship have many psychosocial and cultural dimensions, which is further compounded by the current COVID-19 pandemic. In modern-day India, there is a significant increase in the number of older adults left to live alone because of sociocultural changes in our society. Companionship in late life is known to promote the quality of life and decrease the mental health morbidity. There is an increasing role of pets as companions to the elderly. Novel technologies such as artificial intelligence in the form of robots are being explored to support the elderly. Sexuality is another complex issue related to older adults that is often ignored. The sexuality and sexual functioning in older adults largely depend on physiological, psychological, and sociocultural factors. The principles of ageism have influenced sexuality in older adults. Sociocultural issues and the aging-related pathophysiological changes can contribute to an increased risk for legal issues related to sexuality in this population. There is a need for more systematic research into the multifaceted concept of companionship and sexuality in the older adult population. This review article addresses these two distinct subjects separately.

Geriatric Depression and Cognitive Impairment-An Update.

BACKGROUND: Depression and cognitive impairment often coexist in older adults. The relation between depression and cognitive impairment is complex. The objective of this article is to review recent literature on cognitive impairment in older adults with depression and provide clinicians an update. METHODS: We searched PubMed, Google Scholar, Science Direct, and Psych Info for the articles published in the English language related to late-life depression (LLD)/geriatric depression and cognitive impairment. We considered original research articles, relevant systematic reviews, chapters, and important conceptual articles published in the last 9 years (2011-2019). We selected relevant articles for this narrative review. CONCLUSION: The concept pseudodementia, indicating depression with cognitive impairment mimicking dementia, is now seen only as a historical concept. The current literature strongly agrees with fact that cognitive deficits often exist in LLD. The cognitive deficits in depression were initially seen as trait marker; however, some recent studies suggest that cognitive deficits persist even in the remission phase. There is heterogeneity among the studies in terms of the nature of the cognitive deficits, but higher number of studies reported impairment in attention and executive function. LLD with cognitive deficits is at a higher risk of progression to dementia. In older adults, depression with cognitive impairments requires a comprehensive evaluation. Electroencephalography, event-related potentials, fluorodeoxyglucose-positron emission tomography, amyloid positron emission tomography, and CSF amyloid will supplement clinical evaluation in differentiating functional depressive disorder with cognitive impairment from depression with an underlying degenerative condition.

Shape Profile of Corpus Callosum As a Signature to Phenotype Different Dementia.

Background Phenotyping dementia is always a complex task for a clinician. There is a need for more practical biomarkers to aid clinicians. Objective The aim of the study is to investigate the shape profile of corpus callosum (CC) in different phenotypes of dementia. Materials and Methods Our study included patients who underwent neuroimaging in our facility as a part of clinical evaluation for dementia referred from Geriatric Clinic (2017-2018). We have analyzed the shape of CC and interpreted the finding using a seven-segment division. Results The sample included MPRAGE images of Alzheimer' dementia (AD) ( n = 24), posterior cortical atrophy- Alzheimer' dementia (PCA-AD) ( n = 7), behavioral variant of frontotemporal dementia (Bv-FTD) ( n = 17), semantic variant frontotemporal dementia (Sv-FTD) ( n = 11), progressive nonfluent aphasia (PNFA) ( n = 4), Parkinson's disease dementia (PDD) ( n = 5), diffuse Lewy body dementia ( n = 7), progressive supranuclear palsy (PSP) ( n = 3), and corticobasal degeneration (CBD) ( n = 3). We found in posterior dementias such as AD and PCA-AD that there was predominant atrophy of splenium of CC. In Bv-FTD, the genu and anterior half of the body of CC was atrophied, whereas in PNFA, PSP, PDD, and CBD there was atrophy of the body of CC giving a dumbbell like profile. Conclusion Our study findings were in agreement with the anatomical cortical regions involved in different phenotypes of dementia. Our preliminary study highlighted potential usefulness of CC in the clinical setting for phenotyping dementia in addition to clinical history and robust biomarkers.

Video consultations from an Indian academic hospital: First 3 years of experience from telepsychiatric after-care clinic.

Background Continuity of care for psychiatric disorders by conventional in-person consultation by psychiatrists is associated with several challenges. There is a need to develop alternative models of specialist care. We studied our 3 years' experience of live video consultations (VCs) from the tele after-care clinic to patients with psychiatric disorders at an Indian academic hospital. Methods We did a file review of 669 VCs provided to 213 patients in the first 3 years (2017-2019) from the telemedicine centre of a tertiary care academic hospital. We analysed details of sociodemography, clinical profile, tele after-care consultations and outcome. Results Two hundred and thirteen patients (55% men) were enrolled for the tele after-care clinic. The mean (SD) age of the patients was 42.2 (17.29) years and a majority were educated till high school and beyond. Patients with severe and common mental disorders constituted 60.1% and 40%, respectively. Among the total 669 appointments, 542 (81%) VCs were successfully provided; of the remaining, 125 were cancelled and 2 were aborted due to a medical emergency. Medication prescriptions were unchanged in 499 and modified/totally changed in 47 VCs. Conclusion Our large study shows that telepsychiatric after-care is a useful alternative method which can supplement in-person follow-up. Barriers such as distance, cost and medical illness can be overcome using tele after-care clinics for regular follow-ups in stabilized psychiatric patients. There is a need for prospective studies, preferably, randomized controlled trials comparing effectiveness of tele after-care with in-person consultations to assess treatment outcomes.

Anticholinergic Burden Among Hospitalised Older Adults with Psychiatric Illnesses- A Retrospective Study.

BACKGROUND: Drugs with anticholinergic properties are known to be associated with deleterious effects on cognition in older adults. There is a paucity of literature in this aspect in older adults with psychiatric disorders. OBJECTIVE: To examine the anticholinergic cognitive burden and its predictors in hospitalised older adults having psychiatric disorders. METHODS: Case records of older adults who sought in-patient care under the Geriatric Psychiatry Unit from January 2019 to June 2019 were reviewed. The anticholinergic burden was assessed with Anticholinergic Cognitive Burden (ACB) scale updated version, 2012. RESULTS: Sample included 129 older adults with an almost equal number of males (53.48%) and females (46.52%) having a mean age of 67.84 (SD = 6.96) years. The diagnostic spectrum included depression (34.89%), dementia (31.01%), mania (10.85%), psychosis (13.95%), delirium (6.20%), and others (3.1%). 60.47% of the patients had more than one medical illness. 48.84% of the older adults had clinically relevant anticholinergic cognitive burden (ACB score ≥ 3). Use of 3 or more psychotropic drugs (OR = 4.88), diagnosis of psychosis/mania (OR = 7.62) and dementia/ delirium (neurocognitive disorders group) (OR = 5.17) increased the risk of ACB score ≥ 3. CONCLUSION: Nearly half of the older adults in the psychiatry in-patient setting had a clinically relevant anticholinergic burden, which was associated with higher use of psychotropics. Our study highlights the importance of monitoringanticholinergic effects of psychotropics in older adults.

Geriatric Telepsychiatry: Promoting Access to Geriatric Mental Health Care Beyond the Physical Barriers.

Psychiatric illnesses are an important contributor of morbidity and mortality in older adults. There is increase in older adults with psychiatric disorders paralleling their growth in absolute numbers. This leads to challenges in mental health care and service delivery. Several barriers that exists in our community hinder older adults from receiving mental health care. Additionally, lack of adequate human resources in geriatric mental health care compounds the problem. Telemedicine, though not new in other fields of medicine, is relatively new in the practice of psychiatry in India. This is probably due to lack of clear guidelines and regulations regarding the same in India. There is a recent increase in teleconsultations in India similar to other developed countries due to ongoing COVID-19 pandemic. The recent telepsychiatry operational guidelines have made telepsychiatry a legitimate and official practice in India. Challenges specific to older adults in the form of low digital literacy, sensory issues, and cognitive impairment can be overcome by adopting telepsychiatry services in coming years. Concerns related to security and safety of telepsychiatry require further evaluation.

Study of neuropsychological deficits in late onset depression.

BACKGROUND: Older adults with depression often have cognitive deficits contributing to higher morbidity and increased risk for conversion to dementia. Research on this area is limited from India. OBJECTIVE: The objective of the current study is to examine the neuropsychological measures in older adults with Late-onset depression (LOD) compared to healthy controls (HC). METHOD: Sample included older adults with depression as per DSM-IV TR criteria seeking treatment from Geriatric Clinic and Services, National Institute of Mental Health and Neurosciences (NIMHANS). Geriatric depression scale, Montgomery Asberg depression rating scale and Hamilton anxiety rating scale were applied to screen and measure the severity of depression. Comprehensive assessment of neurocognitive function was done using NIMAHNS Neuropsychological Battery for Elderly (NNBE, 2013). RESULTS: Sample included 76 LOD patients and 76 healthy controls (HC) who were matched for age, gender and education. The mean age of onset of illness was 63.17(SD-6.54) years and median duration of total illness was 29.5 months. In the standard assessments, the mean score on GDS was 9.28 (SD-3.32) and MADRS was 18.88 (SD-6.07). The LOD group had lower Hindi Mental Status Examination (HMSE) score compared to HC (28.64 ± 2.09 vs 30.05 ± 1.26, p < 0.001). Compared to HC, LOD group performed poorly on tasks of attention, executive function, verbal and visual memory, verbal fluency and visuo-spatial skills. Recognition memory and logical memory were relatively preserved in LOD compared to HC. DISCUSSION AND CONCLUSION: Cognitive deficits were seen predominantly in attention and executive function, visuo-spatial skills and memory similar to previous studies. It is advisable to routinely assess cognitive symptoms in older adults presenting with depression.

Increased prolidase activity in Alzheimer's dementia: A case-control study.

Prolidase enzyme, which catalyzes the final step in collagen metabolism can influence the cognitive functions through changes in extracellular matrix (ECM) resulting in altered synaptic connectivity in Alzheimer's disease (AD). In this study, it was found that the prolidase activity was significantly higher (p = 0.0016) in AD subjects (5.62 ± 2.05 U/ mL) than control group (4.45 ± 0.92 U/ mL). The increase was significant beginning at mild AD (p = 0.006) with an inverse correlation with HMSE scores (p = 0.0344), thus implying that prolidase mediated alterations in ECM may be associated with the cognitive deficits seen in AD.

Psychotic symptoms in frontotemporal dementia with right frontotemporal atrophy.

Frontotemporal dementia (FTD) often mimics a primary psychiatric disorder. A subset of patients with FTD presents with psychotic symptoms either during the course of illness and less often prior to the onset of cognitive decline. This leads to delay in diagnosis and inappropriate exposure to high dose antipsychotic medication. Among the predictors for psychotic symptoms, the involvement of specific anatomical regions such as right frontotemporal lobe has been reported in few studies. We report a case of FTD presenting as late-onset psychosis with right frontotemporal atrophy.

Clinical utility of 18F-FDG-PET/MRI brain in dementia: Preliminary experience from a geriatric clinic in South India.

BACKGROUND: 18F-FDG-PET is a potential sensitive biomarker indicating neuronal damage. 18F-FDG-PET has proven to be useful in subtyping dementia. Utility of simultaneous 18F-FDG-PET and MRI-brain was investigated in the evaluation of dementia in this facility. METHOD: All case notes of patients who underwent 18 F-FDG-PET/MRI brain attending the Geriatric Clinic for 18 month period between January 2017 and June 2018 were retrospectively reviewed. Their socio-demographic details, MRI-brain finding, 18F- FDG-PET findings and comorbid illnesses were studied. RESULTS: A total of 21 patients underwent 18F-FDG-PET/MRI brain during study period. The mean age was 61.23, SD-8.6 years (range: 36-75 years). Among them 5 (23.8%) had Mild Cognitive Impairment (MCI) and 16 (76.2%) had dementia. Majority of patients had early onset cognitive decline (76.2%). Based on the pattern of hypometabolism, the MCI group had one patient each indicative of AD, Semantic-Frontotemporal dementia (Semantic-FTD), mixed Alzheimer's dementia (AD + FTD) and two patients had patterns suggestive of Behaviour Variant of FTD (Bv-FTD). In Dementia group the pattern of hypometabolism was indicative of Bv-FTD in seven, AD in four, Posterior Cortical Atrophy (PCA) in one, Semantic-FTD in one, Mixed AD-Diffuse Lewy Body Dementia (DLBD) in one and no specific pattern in two patients. MRI and 18 F-FDG-PET brain had concordance in 9 (56.26%) patients. DISCUSSION: 18F-FDG-PET/MRI helped in overall clinical diagnosis and management in 19 (90.5%) patients especially with early onset dementia. In MCI group it indicated underlying aetiology and in dementia group it helped in subtyping. CONCLUSION: The study supports the role of 18F-FDG-PET/MRI as an emerging diagnostic tool to assist in dementia evaluation in India.

Implications of Mental Healthcare Act 2017 for geriatric mental health care delivery: A critical appraisal.

The prevalence of mental health problems in older adults is increasing globally as well as in India due to population ageing. Mental Healthcare Act (MHCA) 2017 has a rights-based approach and came into force in India in May 2018. Its provisions have significant implications for promoting mental health care and protecting the rights of persons with mental illness (PMI). Older adults with mental health problems such as dementia have a high risk for loss of mental capacity, abuse, violation of their rights, and institutionalization. This act advocates the development of specialized clinical services for the older adults in mental health care institutions. It also recognizes the rights of PMI to access a range of services required, including rehabilitation services. Several provisions of the act, such as those related to mental capacity, advance directive, nominated representative, and responsibilities of other agencies, have specific challenges related to older adults with mental illness. In this article, we present a critical appraisal of the implications of MHCA 2017 in the context of the care of the older adults with mental illness.

Psychological morbidity after job retirement: A review.

Retirement from work is usually an inevitable and significant social life event for many elderly. The retirement age is generally around 60 years. It can have negative or positive effect in old age depending on other factors such as frailty, slowing cognitive functions, multiple physical health problems, medications and sensory impairment. The objective of the study is to discuss psychological morbidity in persons following retirement in Indian context. Previous studies indicate possible cross-cultural differences with conflicting findings of positive and negative impact on mental health following retirement in the developed countries. Few available Indian studies on this topic suggest lower self-esteem, low mood, physical health and financial insecurity as mental health consequences following retirement. There is need for prospective studies from India to evaluate the impact of retirement on psychological morbidity as well as the role of related social factors, as the effects on mental health post retirement is more likely to be culture specific.