Optimising diagnosis and post-diagnostic support for people living with dementia: geriatricians' views.

BACKGROUND: Providing a timely and accurate diagnosis of dementia and delivering appropriate support following a diagnosis are essential to allow individuals and their families to plan for the future. Recent studies suggest that provision of diagnosis and post-diagnosis support is suboptimal. This study explored geriatricians' views about strategies to improve quality of care across these domains. METHODS: An anonymous online survey of geriatricians and advanced trainees in one Australian state was conducted. An Expert Advisory Group of geriatricians, behavioural scientists and consumers proposed strategies to improve quality of care in relation to diagnosis and post-diagnosis support for people with dementia, which formed the survey items. Potential strategies were guided by, but not limited to, dementia and chronic care guidelines. Participants were asked the extent to which they agreed that implementing each of the proposed strategies would improve the quality of dementia care. RESULTS: Of 59 participants (response rate 42%), all agreed that improving accessibility of geriatricians would improve the accuracy and timeliness of diagnosis. Over 90% were supportive of strategies to improve capacity of general practitioners to accurately diagnose dementia. Between 97-100% agreed that information provided following diagnosis should encompass symptom progression, treatments, psychological supports, and advance care planning. Just over two-thirds thought that life expectancy should be discussed at this time. There were high levels of support for strategies already included in existing dementia care guidelines, however geriatricians also agreed with a range of possible strategies not currently included in guidelines. CONCLUSIONS: Geriatricians perceive that timeliness and accuracy of dementia diagnosis may be improved by increasing access to geriatricians and training general practitioners in diagnosing dementia. They also believe it is appropriate to provide information at the time of diagnosis across a comprehensive range of areas, including potentially sensitive topics such as advance care planning. Future studies should explore the views of other groups of health care providers and consumers about these approaches. The strategies proposed should be considered for inclusion in future dementia care guidelines.

Utility estimations of health states of older Australian women with atrial fibrillation using SF-6D.

PURPOSE: To estimate SF-6D utility scores for older women with atrial fibrillation (AF); calculate and compare mean utility scores for women with AF with various demographic, health behaviours, and clinical characteristics; and develop a multivariable regression model to determine factors associated with SF-6D utility scores. METHODS: This study evaluated N = 1432 women diagnosed with AF from 2000 to 2015 of the old cohort (born 1921-26) of the Australian Longitudinal Study on Women's Health (ALSWH) who remained alive for at least 12 months post first recorded AF diagnosis. Self-reported data on demographics, health behaviours, health conditions, and SF-36 were obtained from the ALSWH surveys, corresponding to within three years of the date of the first record of AF diagnosis. Linked Pharmaceutical Benefits Scheme (PBS) data determined the use of oral anticoagulants and comorbid conditions, included in CHA2DS2-VA (Congestive heart failure, Hypertension, Age ≥ 75 years, Diabetes, Stroke or TIA, Vascular disease and Age 65-74 years) score calculation, were assessed using state-based hospital admissions data. Utility scores were calculated for every woman from their SF-36 responses using the SF-6D algorithm with Australian population norms. Mean utility scores were then calculated for women with various demographic, health behaviours, and clinical characteristics. Ordinary Least Square (OLS) regression modelling was performed to determine factors associated with these utility scores. Two different scenarios were used for the analysis: (1) complete-case, for women with complete data on all the SF-36 items required to estimate SF-6D (N = 584 women), and (2) Multiple Imputation (MI) for missing data, applied to missing values on SF-36 items (N = 1432 women). MI scenario was included to gauge the potential bias when using complete data only. RESULTS: The mean health utility was estimated to be 0.638 ± 0.119 for the complete dataset and 0.642 ± 0.120 for the dataset where missing values were handled using MI. Using the MI technique, living in regional and remote areas ([Formula: see text]) and the use of oral anticoagulants ([Formula: see text] were positively associated with health utility compared to living in major cities and no use of anticoagulants, respectively. Difficulty to manage on available income [Formula: see text], no/low physical activity [Formula: see text], disability [Formula: see text], history of stroke ([Formula: see text] and history of arthritis [Formula: see text] were negatively associated with health utility. CONCLUSION: This study presents health utility estimates for older women with AF. These estimates can be used in future clinical and economic research. The study also highlights better health utilities for women living in regional and remote areas, which requires further exploration.

Are older and seriously ill inpatients planning ahead for future medical care?

BACKGROUND: Despite the perceived ethical, personal and health service benefits of advance care planning (ACP), the extent to which older and seriously ill Australian inpatients have considered future health decisions remains uncertain. This study aimed to determine in a sample of older and seriously ill inpatients, the proportion who had: 1) engaged in four advance care planning (ACP) activities; 2) not engaged in ACP activities but wanted to; and 3) reasons why they had not engaged. METHODS: Cross-sectional face-to-face standardised interview survey with inpatients in a tertiary referral centre who were either: aged 80+ years; aged 55+ years with progressive chronic disease(s); or judged by treating clinicians as having a life expectancy of less than 12 months. Patients indicated whether they had engaged in four ACP activities: (1) appointed medical substitute-decision-maker(s), (2) recorded end-of-life wishes in an advance directive or care plan; and talked about their end-of-life wishes with their: (3) support persons and/or (4) doctors. Patients who had not engaged in activities were asked whether they wished this to occur and reasons why. RESULTS: One hundred eighty-six inpatients consented to the study (80% of approached). Of these, 9% (n = 16) had engaged in four ACP activities; 27% (n = 50) had not engaged in any. Half (n = 94, 52%) had appointed a medical substitute-decision-maker, 27% (n = 50) had recorded wishes in an advance directive or care plan, 51% (n = 90) had talked about their end-of-life wishes with support persons and 27% (n = 48) had talked with their doctor. Patients who wanted to, but had not, engaged in the four ACP activities were unaware they could record wishes or appoint decision-makers, or indicated providers had not initiated conversations. CONCLUSION: Relatively few inpatients had engaged in all four ACP activities. More inpatients had discussed end of life issues with family and appointed substitute decision makers, than completed written documents or talked with doctors. Community education and a more active role for community and hospital-based providers in supporting patients and families to collaboratively resolve end-of-life decisions may increase the probability wishes are known and followed.

Uptake, prevalence and predictors of first-time use for the 75+ Health Assessment Scheme.

In 1999, the Australian Federal Government introduced Medicare items for Health Assessments for people aged 75 years and older (75+ health assessments). This research examined uptake of these assessments and identified predictors of use by women from the Australian Longitudinal Study on Women's Health (ALSWH). Assessments were identified for each year from 1999 to 2013 using linked Medicare data. Time to first assessment was examined, as well as social and health factors associated with having an assessment. From 1999 to 2013, 61.8% of women had at least one assessment. Almost one-third had an assessment within 2 years of their introduction, 25% of women died before having an assessment and 13% survived but did not have an assessment. Factors associated with assessment included being widowed, private health insurance, marital status, education, having arthritis and urinary incontinence, and less difficulty managing on income. Many women never received an assessment, and many only received one. Promotion of the 75+ health assessments is necessary among older women to increase uptake.

Identifying educator behaviours for high quality verbal feedback in health professions education: literature review and expert refinement.

BACKGROUND: Health professions education is characterised by work-based learning and relies on effective verbal feedback. However the literature reports problems in feedback practice, including lack of both learner engagement and explicit strategies for improving performance. It is not clear what constitutes high quality, learner-centred feedback or how educators can promote it. We hoped to enhance feedback in clinical practice by distinguishing the elements of an educator's role in feedback considered to influence learner outcomes, then develop descriptions of observable educator behaviours that exemplify them. METHODS: An extensive literature review was conducted to identify i) information substantiating specific components of an educator's role in feedback asserted to have an important influence on learner outcomes and ii) verbal feedback instruments in health professions education, that may describe important educator activities in effective feedback. This information was used to construct a list of elements thought to be important in effective feedback. Based on these elements, descriptions of observable educator behaviours that represent effective feedback were developed and refined during three rounds of a Delphi process and a face-to-face meeting with experts across the health professions and education. RESULTS: The review identified more than 170 relevant articles (involving health professions, education, psychology and business literature) and ten verbal feedback instruments in health professions education (plus modified versions). Eighteen distinct elements of an educator's role in effective feedback were delineated. Twenty five descriptions of educator behaviours that align with the elements were ratified by the expert panel. CONCLUSIONS: This research clarifies the distinct elements of an educator's role in feedback considered to enhance learner outcomes. The corresponding set of observable educator behaviours aim to describe how an educator could engage, motivate and enable a learner to improve. This creates the foundation for developing a method to systematically evaluate the impact of verbal feedback on learner performance.

Range-based ICA using a nonsmooth quasi-newton optimizer for electroencephalographic source localization in focal epilepsy.

Independent component analysis (ICA) aims at separating a multivariate signal into independent nongaussian signals by optimizing a contrast function with no knowledge on the mixing mechanism. Despite the availability of a constellation of contrast functions, a Hartley-entropy-based ICA contrast endowed with the discriminacy property makes it an appealing choice as it guarantees the absence of mixing local optima. Fueled by an outstanding source separation performance of this contrast function in practical instances, a succession of optimization techniques has recently been adopted to solve the ICA problem. Nevertheless, the nondifferentiability of the considered contrast restricts the choice of the optimizer to the class of derivative-free methods. On the contrary, this letter concerns a Riemannian quasi-Newton scheme involving an explicit expression for the gradient to optimize the contrast function that is differentiable almost everywhere. Furthermore, the inexact line search insisting on the weak Wolfe condition and a terminating criterion befitting the partly smooth function optimization have been generalized to manifold settings, leaving the previous results intact. The investigations with diversified images and the electroencephalographic (EEG) data acquired from 45 focal epileptic subjects demonstrate the efficacy of our approach in terms of computational savings and reliable EEG source localization, respectively. Additional experimental results are available in the online supplement.

KTP-532 Laser Assisted Excision of a Rare Laryngeal Angiolipoma: A Case Report with Review of Literature.

Angiolipoma is a benign mesenchymal tumor and its occurrence in head and neck region is very rare. Only 2 cases of Laryngeal angiolipomas have been reported in the medical literature. We present one such rare case in a 32-year-old male who presented with complaints of change in voice and foreign body sensation in the throat since past 9 months along with features suggestive of obstructive sleep apnoea and dysphagia. Contrast enhanced CT scan of the neck showed a cystic lesion arising from right ventricle extending superiorly till the vallecula, partially obstructing the airway. Suspecting a supraglottic cyst, trans-oral microlaryngoscopic KTP-532 laser assisted excision was planned, intraoperatively a solid tumor was encountered. We discuss herein the clinical presentation and management of this rare neoplasm with review of literature.

Correlation Between Nasal Allergy and the Number of Eosinophils in Adenoid Tissue.

To study adenoid tissue eosinophilia in allergic rhinitis. A single-centre clinical case-control prospective study with 66 subjects enrolled for the study after taking written informed consent from all the participants. All patients underwent adenoidectomy with histopathological evaluation of adenoid tissue samples for eosinophils. 36 patients (cases) with Symptoms for Allergic Rhinitis (SFAR) score indicative of allergic rhinitis. 30 patients (control) with SFAR scores not indicative of allergic rhinitis. All patients were evaluated for serum absolute eosinophil count and total serum immunoglobulin E (Ig-E). There was a significant relationship between allergic rhinitis and serum Ig-E levels using the Kruskal-Wallis rank sum test amongst case and control groups with a p-value of 0.031. Pathologically examined slides of adenoid tissue eosinophil count per 10 random high power fields in these patients showed significant results with a p-value of 0.002432, via the Kruskal-Wallis rank sum test. Statistical analysis, shows that adenoid tissue eosinophil count and serum Ig-E levels can somewhat predict the presence of clinical features of allergic rhinitis. Based on several similar studies with similar results, allergic rhinitis can be gauged with adenoid tissue histopathology and routine evaluation should be considered as a standard of care.

Refresh of a Clinical Skills Assessment for Physician Trainees.

Purpose: The Royal Australasian College of Physicians (RACP) oversees physician training across Australia and Aotearoa New Zealand. Success in a written examination and clinical skills assessment (known as the clinical examination) at the mid-point of training is a requirement to progress from basic to advanced training. The clinical examination had evolved over many years without a review process. This paper describes the approach taken, the changes made and the evaluation undertaken as part of a formal review. Methods: A working party that included education experts and examiners experienced in the assessment of clinical skills was established. The purpose of the clinical examination and competencies being assessed were clarified and were linked to learning objectives. Significant changes to the marking and scoring approaches resulted in a more holistic approach to the assessment of candidate performance with greater transparency of standards. Evaluation over a 2-year period was undertaken before the adoption of the new approach in 2019. Results: In 2017 testing of a new marking rubric occurred during the annual examination cycle which confirmed feasibility and acceptability. The following year an extensive trial utilising the new marking rubric and a new scoring approach took place involving 1142 examiners, 880 candidates and 5280 scoresheets which led to some minor modifications to the scoring system. The final marking and scoring approaches resulted in unchanged pass rates and improved inter-rater reliability. Feedback from examiners confirmed that the new marking and scoring approaches were easier to use and enabled better feedback on performance for candidates. Conclusion: The refresh of the RACP clinical examination has resulted in an assessment that has clarity of purpose, is linked to learning objectives, has greater transparency of expected standards, has improved inter-rater reliability, is well accepted by examiners and enables feedback on examination performance to candidates.

The effect of anxiety on all-cause dementia: A longitudinal analysis from the Hunter Community Study.

BACKGROUND: Anxiety is common, however, the effect of chronicity of anxiety on dementia has not been explored. This study aims to assess the longitudinal relationship between chronic versus resolved versus new onset anxiety, and all-cause dementia risk. METHODS: A total of 2132 participants with mean age 76 years from the Hunter Community Study were recruited. Anxiety was measured using Kessler Psychological Distress Scale (K10). Dementia was defined as per International Classification of Disease-10 codes. The Fine-Gray subdistribution hazard model was computed to assess dementia risk, while adjusting for the competing risk of death. RESULTS: Chronic anxiety and new onset anxiety at follow-up were associated with all-cause dementia risk (HR 2.80, 95% CI 1.35-5.72 and HR 3.20, 95% CI 1.40-7.45 respectively) with an average time to dementia diagnosis of 10 years (SD = 1.7) whereas resolved anxiety was not. In subgroup analyses, these results were driven particularly by chronic and new anxiety among participants below the age of 70 years (HR 4.58, 95% CI 01.12-18.81 and HR 7.21, 95%CI 1.86-28.02 respectively). Sensitivity analyses imputing missing data and addressing reverse causation gave very similar results. CONCLUSION: Chronic and new anxiety were associated with increased risk of all-cause dementia, and this association was significant in those 70 years and younger. However, the resolved anxiety at follow-up reduced the risk, similar to that of the non-exposed group. These results suggest that timely management of anxiety may be a viable strategy in reducing the risk of dementia.

Leveraging Narrative Feedback in Programmatic Assessment: The Potential of Automated Text Analysis to Support Coaching and Decision-Making in Programmatic Assessment.

Introduction: Current assessment approaches increasingly use narratives to support learning, coaching and high-stakes decision-making. Interpretation of narratives, however, can be challenging and time-consuming, potentially resulting in suboptimal or inadequate use of assessment data. Support for learners, coaches as well as decision-makers in the use and interpretation of these narratives therefore seems essential. Methods: We explored the utility of automated text analysis techniques to support interpretation of narrative assessment data, collected across 926 clinical assessments of 80 trainees, in an International Medical Graduates' licensing program in Australia. We employed topic modelling and sentiment analysis techniques to automatically identify predominant feedback themes as well as the sentiment polarity of feedback messages. We furthermore sought to examine the associations between feedback polarity, numerical performance scores, and overall judgments about task performance. Results: Topic modelling yielded three distinctive feedback themes: Medical Skills, Knowledge, and Communication & Professionalism. The volume of feedback varied across topics and clinical settings, but assessors used more words when providing feedback to trainees who did not meet competence standards. Although sentiment polarity and performance scores did not seem to correlate at the level of single assessments, findings showed a strong positive correlation between the average performance scores and the average algorithmically assigned sentiment polarity. Discussion: This study shows that use of automated text analysis techniques can pave the way for a more efficient, structured, and meaningful learning, coaching, and assessment experience for learners, coaches and decision-makers alike. When used appropriately, these techniques may facilitate more meaningful and in-depth conversations about assessment data, by supporting stakeholders in interpretation of large amounts of feedback. Future research is vital to fully unlock the potential of automated text analysis, to support meaningful integration into educational practices.

"Herbal remedy is natural and safe"--truth or myth?

Neem oil is often used externally as a traditional medicine in India. Its ingestion, even in small doses produces toxic effects like severe metabolic acidosis, seizures, renal failure and encephalopathy. Management is supportive and prognosis is generally good but fatalities may occur. Herein we report an unusual case of neem oil toxicity in a previously normal adult.

KTP 532 Laser Assisted Surgery for Oral Cavity Malignancy-A Retrospective Study.

Aims and Objective: To determine the effectiveness of KTP 532 in surgically treating early and early advanced oral malignancy with no surgical reconstruction of primary site. Materials and methods: It is a retrospective study of 67 cases operated between 2000 to 2013 including T1, T2 and Early T3 cases, approved by ethical committee. All the cases underwent Laser assisted excision of tumour with or without Neck Dissection or Adjuvant Radiotherapy. Age of the cases varied from 20 to 80 years with mean age of 49 years. 47 cases were males and 20 were females. 26 cases in the study had neck nodes clinically whereas 41 cases had N0 status. Neck dissection was done (SOND or MRND) in 61 cases. In 6 cases (N0) no neck dissection was done. Results: 61 cases had no loco-regional residual disease on their last follow up. Six cases had loco-regional recurrence within 6 months and salvage surgery was done. The overall mean survival was 81 months (92, 82 and 71 months in Stage I, II,III respectively). 3 year disease free survival rate was 91% as calculated using Kaplan- Meier Scale. In all these cases tumour was excised with KTP 532 laser and no reconstruction was done. Wound was allowed to heal with secondary intention. Conclusion: Laser assisted excision of oral malignancy is an alternative to conventional treatment with more precision, less morbidity, shorter hospital stay and better functional outcomes. Supplementary Information: The online version contains supplementary material available at 10.1007/s12070-022-03214-x.

Inequitable treatment as perceived by international medical graduates (IMGs): a scoping review.

OBJECTIVES: This scoping review seeks to detail experiences of inequitable treatment, as self-reported by international medical graduates (IMGs), across time and location. DESIGN: Scoping review. SEARCH STRATEGY: Three academic medical databases (MEDLINE, SCOPUS and PSYCINFO) and grey literature (GOOGLE SCHOLAR) were systematically searched for studies reporting first-hand IMG experiences of perceived inequitable treatment in the workplace: discrimination, prejudice or bias. Original (in English) qualitative, quantitative, mixed studies or inquiry-based reports from inception until 31 December 2022, which documented direct involvement of IMGs in the data were eligible for inclusion in the review. Systematic reviews, scoping reviews, letters, editorials, news items and commentaries were excluded. Study characteristics and common themes were identified and analysed through an iterative process. RESULTS: We found 33 publications representing 31 studies from USA, Australia, UK, Canada, Germany, Finland, South Africa, Austria, Ireland and Saudi Arabia, published between 1982 and 2022. Common themes identified by extraction were: (1) inadequate professional recognition, including unmatched assigned work or pay; (2) perceived lack of choice and opportunities such as limited freedoms and perceived control over own future; (3) marginalisation-subtle interpersonal exclusions, stereotypes and stigma; (4) favouring of local graduates; (5) verbal insults, culturally or racially insensitive or offensive comments; and (6) harsher sanctions. Other themes identified were effects on well-being and proposed solutions to inequity. CONCLUSIONS: This study found evidence that IMGs believe they are subject to numerous common inequitable workplace experiences and that these experiences have self-reported repercussions on well-being and career trajectory. Further research is needed to substantiate correlations and causality in relation to outcomes of well-being and differential career attainment. Furthermore, research into support for IMGs and the creation of more equitable workforce environments is also recommended.

A systematic approach to workplace-based assessment for international medical graduates.

OBJECTIVES: To test whether a summative workplace-based assessment (WBA) is feasible and acceptable for international medical graduates (IMGs). DESIGN, SETTING AND PARTICIPANTS: A 6-month trial with 27 IMGs from teaching hospitals in Newcastle, Australia. IMGs were assessed by 65 trained assessors from different disciplines, using blueprinted, preset criteria. MAIN OUTCOME MEASURES: Mini-clinical evaluation exercises, case-based discussions, in-training assessments and multisource feedback. At the end of the trial, assessors and candidates gave feedback. RESULTS: All IMGs were successful at the end of the assessment. The format was well received and acceptable to the candidates and assessors. CONCLUSIONS: WBA is feasible and acceptable to assessors and candidates for assessment of IMGs, but it is intensive in use of resources and time.

Nasal Mucociliary Clearance in Prolonged Tracheostomy Patients: A Prospective Case-Control Study.

Prolonged tracheostomy bypasses the upper airways leading to absence or reduction of nasal airflow. This altered nasal physiology not only impairs olfaction but also may cause mucociliary dysfunction and consequent nasal crusting and rhinosinusitis.To objectively evaluate the extent of nasal mucociliary impairment in patients with prolonged duration of tracheostomy.This is a prospective case-control study done in a tertiary care center wherein the nasal mucocilary function was assessed by saccharin test in patients who were tracheostomized for a period of more than 4 weeks and the saccharin transit time (time taken to appreciate the sweet taste after endoscopic insertion of saccharin pellet on anterior end of inferior turbinate) was compared by the same test in age and sex matched healthy individuals. The saccharin transit time in the two groups was statistically analyzed using student t-test. Mean saccharin transit time in 30 patients with prolonged tracheostomy was 934.97 s with a standard deviation of 75.95 s whereas in 30 controls, the meantime was 447.4 s with a standard deviation of 63.22 s, which was statistically significant (p < 0.001). Conclusion Prolonged duration of tracheostomy leads to impaired nasal mucociliary clearance, which in turn could cause chronic rhinosinusitis.

Measuring the Impact of a Faculty Development Program on Clinical Educators.

INTRODUCTION: An Academy of Clinical Educators (ACE) was established at the University of Newcastle, to support and build capacity among existing and prospective medical educators. ACE established a Certificate of Clinical Teaching and Supervision (CCTS) program, the final assessment of which was a reflective piece on how the course has affected participants' practice as clinical teachers or supervisors and how changes are expected to impact learner achievement. We conducted a qualitative evaluation of these to explore the impact of the CCTS on participants' teaching. METHODS: Thirty-one participants (of 90 completers to date) consented for their written reflections to undergo qualitative thematic analysis and completed a survey exploring their preparation for, and experience of the program, and application of skills learnt. RESULTS: Most participants reported applying the skills gained through the CCTS to their teaching practice to a large (n=23; 72%) or very large (n=5; 16%) extent. Four themes emerged from the qualitative data, aligned with the topics of the CCTS: teaching structure; feedback; orientation; and assessment. Participants described application of more structured approaches to orientation, teaching and feedback, positive student responses, and self-reported satisfaction with adopted changes. DISCUSSION: The CCTS has motivated change in the teaching practice of participants. Although evidence presented here is limited by the self-reported nature, descriptions of actual changes in practice were detailed and specific enough to suggest they could act as a proxy for objectively measured change in behaviour and outcome. CONCLUSION: A faculty development program delivered to clinicians with a range of teaching and education-related roles, from varied clinical disciplines and professions, can promote improved, structured teaching and feedback.

Melatonin for delirium prevention in hospitalized patients: A systematic review and meta-analysis.

BACKGROUND AND AIMS: Melatonin, a pineal gland hormone is reported to have a protective effect against delirium. This systematic review and meta-analysis explores the effect of melatonin and melatonin receptor agonist, ramelteon on delirium prevention in adult hospitalized patients. METHODS: Randomized Controlled trials of melatonin/ramelteon published up to May 7, 2020 were identified from MEDLINE, PREMEDLINE, Embase, PsycINFO, the Cochrane Central Register of Controlled trials, PubMed, and Google Scholar. The primary outcome was delirium incidence. The secondary outcomes were sleep quality, sedation score, sedatives requirement, delirium duration, length of hospital stay, length of Intensive Care Unit (ICU) stay, mortality and adverse events. A meta-analysis with a random-effects models was performed. Estimates were presented as Risk Ratio (RR) or Mean Differences (MD) with 95% Confidence Interval (CI). FINDINGS: Fourteen studies with 1712 participants were included. Melatonin/ramelteon significantly reduced delirium incidence (RR 0·61, 95% CI 0·42-0·89, p 0·009) with risk reduction of 49% in surgical patients and 34% in ICU patients. Non-significant reduction was found in medical patients. Melatonin/ramelteon were associated with improvement in sleep quality, increased sedation score and lower sedatives consumption. However, they did not reduce delirium duration, length of hospital stay, length of ICU stay and mortality. Hallucinations, nightmares and gastrointestinal disorders were prevalent in melatonin group. INTERPRETATION: Melatonin/ramelteon are associated with reduction in delirium incidence in hospitalized patients. However, this effect seems confined to surgical and ICU patients. The optimum dosage and formulation of melatonin, and treatment duration remain uncleared and open to further studies with larger sample sizes.

Regional changes with global brain hypometabolism indicates a physiological triage phenomenon and can explain shared pathophysiological events in Alzheimer's & small vessel diseases and delirium.

While reduced global brain metabolism is known in aging, Alzheimer's disease (AD), small vessel disease (SVD) and delirium, explanation of regional brain metabolic (rBM) changes is a challenge. We hypothesized that this may be explained by "triage phenomenon", to preserve metabolic supply to vital brain areas. We studied changes in rBM in 69 patients with at least 5% decline in global brain metabolism during active lymphoma. There was significant decline in the rBM of the inferior parietal, precuneus, superior parietal, lateral occipital, primary visual cortices (P<0.001) and in the right lateral prefrontal cortex (P=0.01). Some areas showed no change; multiple areas had significantly increased rBM (e.g. medial prefrontal, anterior cingulate, pons, cerebellum and mesial temporal cortices; P<0.001). We conclude the existence of a physiological triage phenomenon and argue a new hypothetical model to explain the shared events in the pathophysiology of aging, AD, SVD and delirium.

Estimating the effect of health assessments on mortality, physical functioning and health care utilisation for women aged 75 years and older.

Health assessments have potential to improve health of older people. This study compares long-term health care utilisation, physical functioning, and mortality for women aged 75 years or over who have had a health assessment and those who have not. Prospective data on health service use, physical functioning, and deaths among a large cohort of women born 1921-26 were analysed. Propensity score matching was used to produce comparable groups of women according to whether they had a health assessment or not. The study population included 6128 (67.3%) women who had an assessment, and 2971 (32.7%) women who had no assessment. Propensity matching produced 2101 pairs. Women who had an assessment had more use of other health services, longer survival, and were more likely to survive with high physical functioning compared to women with no assessment. Among women who had good baseline physcial functioning scores, women who had an assessment had significantly lower odds of poor outcomes at 1000 days follow-up compared to women who had no assessment (OR: 0.67, 95%CI: 0.52, 0.85). This large observational study shows the real-world potential for assessments to improve health outcomes for older women. However, they also increased health service use. This increased healthcare is likely to be an important mechanism in improving the women's health outcomes.