Is diabetic retinopathy screening worthwhile among people first diagnosed with diabetes at older ages? A cohort study of Norfolk diabetic retinopathy screening programme.

AIMS: England's Diabetic Eye Disease Screening Programme offers screening to every resident over age 12 with diabetes, starting as soon as possible after diagnosis and repeated annually. People first diagnosed with diabetes at older ages have shorter life expectancy and therefore may be less likely to benefit from screening and treatment. To inform decisions about whether diabetic eye screening policy should be stratified by age, we investigated the probability of receiving treatment according to age at first screening episode. METHODS: This was a cohort study of participants in the Norfolk Diabetic Retinopathy Screening Programme from 2006 to 2017, with individuals' programme data linked to hospital treatment and death data recorded up to 2021. We estimated and compared the probability, annual incidence and screening costs of receiving retinal laser photocoagulation or intravitreal injection and of death, in age groups defined by age at first screening episode. RESULTS: The probability of death increased with increasing age at diagnosis, while the probability of receiving either treatment decreased with increasing age. The estimated cost of screening per person who received either or both treatments was £18,608 among all participants, increasing with age up to £21,721 in those aged 70-79 and £26,214 in those aged 80-89. CONCLUSIONS: Diabetic retinopathy screening is less effective and less cost-effective with increasing age at diagnosis of diabetes, because of the increasing probability of death before participants develop sight-threatening diabetic retinopathy and can benefit from treatment. Upper age limits on entry into screening programmes or risk stratification in older age groups may, therefore, be justifiable.

Quality standards for the care of people with giant cell arteritis in secondary care.

OBJECTIVE: GCA is the commonest primary systemic vasculitis in adults, with significant health economic costs and societal burden. There is wide variation in access to secondary care GCA services, with 34% of hospitals in England not having any formal clinical pathway. Quality standards provide levers for change to improve services. METHODS: The multidisciplinary steering committee were asked to anonymously put forward up to five aspects of service essential for best practice. Responses were qualitatively analysed to identify common themes, subsequently condensed into domain headings, and ranked in order of importance. Quality standards and metrics for each domain were drafted, requiring a minimum 75% agreement. RESULTS: 13 themes were identified from the initial suggestions. Nine quality standards with auditable metrics were developed from the top 10 themes. Patient Access, glucocorticoid use, pathways, ultrasonography, temporal artery biopsy, PET scan access, rheumatology/ophthalmology expertise, education, multidisciplinary working have all been covered in these quality standards. Access to care is a strand that has run through each of the developed standards. An audit tool was developed as part of this exercise. CONCLUSION: These are the first consensus auditable quality standards developed by clinicians from rheumatology and ophthalmology, nursing representatives and involvement of a patient charity. We hope that these standards will be adopted by commissioning bodies to provide levers for change from the improvement of patient care of individuals with GCA.

Efficacy and safety of obinutuzumab in systemic lupus erythematosus patients with secondary non-response to rituximab.

OBJECTIVES: Secondary inefficacy with infusion reactions and anti-drug antibodies (secondary non-depletion nonresponse, 2NDNR) occurs in 14% of SLE patients receiving repeated rituximab courses. We evaluated baseline clinical characteristics, efficacy and safety of obinutuzumab, a next-generation humanized type-2 anti-CD20 antibody licensed for haematological malignancies in SLE patients with 2NDNR to rituximab. METHODS: We collated data from SLE patients receiving obinutuzumab for secondary non-response to rituximab in BILAG centres. Disease activity was assessed using BILAG-2004, SLEDAI-2K and serology before, and 6 months after, obinutuzumab 2× 1000 mg infusions alongside methylprednisolone 100 mg. RESULTS: All nine patients included in the study received obinutuzumab with concomitant oral immunosuppression. At 6 months post-obinutuzumab, there were significant reductions in median SLEDAI-2K from 12 to 6 (P = 0.014) and total BILAG-2004 score from 21 to 2 (P = 0.009). Complement C3 and dsDNA titres improved significantly (both P = 0.04). Numerical, but not statistically significant improvements were seen in C4 levels. Of 8/9 patients receiving concomitant oral prednisolone at baseline (all >10 mg/day), 5/8 had their dose reduced at 6 months. Four of nine patients were on 5 mg/day and were in Lupus Low Disease Activity State following obinutuzumab. After obinutuzumab, 6/9 patients with peripheral B cell data achieved complete depletion, including 4/4 assessed with highly sensitive assays. Of the nine patients, one obinutuzumab non-responder required CYC therapy. One unvaccinated patient died from COVID-19. CONCLUSIONS: Obinutuzumab appears to be effective and steroid-sparing in renal and non-renal SLE patients with secondary non-response to rituximab. These patients have severe disease with few treatment options but given responsiveness to B cell depletion, switching to humanized type-2 anti-CD20 therapy is a logical approach.

An exploration of the attitudes and perceptions of the UK public towards self-care for minor ailments.

AIMS AND OBJECTIVES: the purpose of this pilot study was to explore the attitudes and perceptions of members of the UK public towards self-care for minor ailments. BACKGROUND: with an ageing and increasing population, and an NHS under extreme pressure, methods to reduce demand on health services are vital. Increasing the use of self-care for minor ailments is one way in which this pressure could be alleviated. DESIGN AND METHOD: this study used qualitative methods including semi-structured telephone interviews. The data were then evaluated, and key themes drawn out using thematic analysis. FINDINGS: the results showed that the public are aware of the notion of self-care, and some are engaging with it. However, for a number of reasons, patients are still likely to want a face-to-face appointment despite the use of online and telephone advice services. CONCLUSION: the study highlighted that there are multifactorial aspects impacting on a patient's likelihood of engaging in self-care when faced with a minor illness. The results are not generalisable to every member of the public, but interesting questions are raised with regard to the usefulness of current public health messages in various media when there appears to be a lack of desire from the public to use some recommended services.

Accidents and ethics: a visual-narrative approach.

Emergency department (ED) attendances are continuing to rise, and medical and nursing teams are working under considerable strain. ED clinicians are used to thinking on their feet and possess the skills to multitask, and juggle ever-changing and competing priorities against the clock. This article reports the findings of a study that enabled ED clinicians to take time out to reflect on some of the difficult decisions they make daily, and to ask whether they consider ethical principles in depth, and if they are of any practical help. Findings reveal that autonomy, beneficence, non-maleficence and distributive justice are evident in contemporary EDs, and clinicians need to be encouraged to incorporate ethical reasoning into their reflective practice. The term 'clinician' refers to doctors and nurses in this article.

Evaluation of work-based screening for early signs of alcohol-related liver disease in hazardous and harmful drinkers: the PrevAIL study.

BACKGROUND: The direct cost of excessive alcohol consumption to health services is substantial but dwarfed by the cost borne by the workplace as a result of lost productivity. The workplace is also a promising setting for health interventions. The Preventing Alcohol Harm in Liverpool and Knowsley (PrevAIL) project aimed to evaluate a mechanism for detecting the prevalence of alcohol related liver disease using fibrosis biomarkers. Secondary aims were to identify the additive effect of obesity as a risk factor for early liver disease; to assess other impacts of alcohol on work, using a cross-sectional survey. METHODS: Participants (aged 36-55 y) from 13 workplaces participated (March 2011-April 2012). BMI, waist circumference, blood pressure and self-reported alcohol consumption in the previous week was recorded. Those consuming more than the accepted UK threshold (men: >21 units; female: >14 units alcohol) provided a 20 ml venous blood sample for a biomarker test (Southampton Traffic Light Test) and completed an alcohol questionnaire (incorporating the Severity of Alcohol Dependence Questionnaire). RESULTS: The screening mechanism enrolled 363 individuals (52 % women), 39 % of whom drank above the threshold and participated in the liver screen (n = 141, complete data = 124 persons). Workplaces with successful participation were those where employers actively promoted, encouraged and facilitated attendance. Biomarkers detected that 30 % had liver disease (25 %, intermediate; 5 % probable). Liver disease was associated with the frequency of visits to the family physician (P = 0.036) and obesity (P = 0.052). CONCLUSIONS: The workplace is an important setting for addressing alcohol harm, but there are barriers to voluntary screening that need to be addressed. Early detection and support of cases in the community could avert deaths and save health and social costs. Alcohol and obesity should be addressed simultaneously, because of their known multiplicative effect on liver disease risk, and because employers preferred a general health intervention to one that focused solely on alcohol consumption.

Attitudes of nursing staff towards a Modified Early Warning System.

This study aimed to understand the attitudes of qualified nursing staff on an acute medical unit concerning the Modified Early Warning System (MEWS) score chart used to monitor patients. A combination of questionnaires and a focus group was used. All respondents believed that the MEWS is beneficial in their work but the point was also raised that MEWS scores can be miscalculated and there is sometimes difficulty in getting medical staff to review the patient, even if the MEWS score is significantly high. At times a qualified nurse's seniority or the colour of his or her uniform can affect the attitude of the medical staff and can mean the difference between the patient being reviewed or not. Certain medics have a culture of dismissing a high MEWS score because they were expecting these vital physiological signs to be abnormal, owing to that particular patient's past medical history or presenting complaint. Most hospitals in the NHS now use some sort of early warning system but, at times, staff seem to be unsure of the importance of the MEWS score or what action needs to be taken. The authors agree with the view that introduction of a standard NHS-wide chart would be of benefit to staff and patients.

Patient and Physician Perspectives on the Benefits and Risks of Antiplatelet Therapy for Acute Coronary Syndrome.

This article is co-authored by a patient with acute coronary syndrome (ACS) who is receiving long-term antiplatelet therapy in the USA and a cardiologist who routinely treats patients with ACS. The patient describes his experience from diagnosis to the present day and discusses his concerns regarding treatment and management of the condition, including the balance between the benefits and risks of antiplatelet therapy. The patient also describes his work as an advocate for cardiac health. The physician perspective on treating and managing patients with ACS is provided by a cardiologist based in the USA who is and was not involved in this patient's care. The physician reviews the benefits and risks of antiplatelet therapies for the treatment of patients with ACS and discusses his own clinical experience of managing these patients, including how issues such as treatment adherence, as well as the potential inertia to prescribing certain medications that may be seen among physicians, could be overcome.

Antiplatelet therapies are commonly prescribed to patients who have experienced events termed "acute coronary syndrome" (ACS), such as a heart attack, to prevent further cardiovascular events. However, these medicines come with potential risks, such as bleeding. This article provides perspectives from a patient and a cardiologist on managing ACS, and the benefits and risks of antiplatelet therapies. Platelet inhibitors, which aim to prevent blood clots from forming, are the standard treatment for ACS. Different types of platelet inhibitors are used, including treatments known as P2Y12 inhibitors as well as treatments referred to as platelet aggregation inhibitors. Clinical trials have tested different combinations and durations of antiplatelet therapies, and some trials have shown that changing to P2Y12 inhibitor treatment alone after receiving a combination of platelet inhibitors can reduce the risk of cardiovascular events without increasing the risk of bleeding. Treatment guidelines recommend at least 12 months of platelet inhibitors for patients with ACS; however, treatment decisions should be individualized based on the patient's risk profile. Despite the evidence supporting their benefits, some physicians remain reluctant to prescribe potent P2Y12 inhibitors, preferring older, less potent options. Treatment adherence is also challenging, and is influenced by factors such as bleeding, education level, and cost. Improved education about the benefits and risks of antiplatelet therapies may help to address these issues and improve outcomes for patients with ACS. The perspectives of both the patient and the physician contribute to an increased understanding of ACS management and the challenges faced by patients and health care providers.

Refining ambulance clinical response models: The impact on ambulance response and emergency department presentations.

OBJECTIVE: The ambulance service in Victoria, Australia implemented a revised clinical response model (CRM) in 2016 which was designed to increase the diversion of low-acuity Triple Zero (000) calls to secondary telephone triage and reduce emergency ambulance dispatches. The present study evaluates the influence of the revised CRM on emergency ambulance response times and ED presentations. METHODS: A retrospective study of emergency calls for ambulance between 1 January 2015 and 31 December 2018. Ambulance data were linked with ED presentations occurring up to 48 h after contact. Interrupted time series analyses were used to evaluate the impact of the revised CRM. RESULTS: A total of 2 365 529 calls were included. The proportion allocated a Code 1 (time-critical, lights/sirens) dispatch decreased from 56.6 to 41.0% after implementation of the revised CRM. The proportion of calls not receiving an emergency ambulance increased from 10.4 to 19.6%. Interrupted time series analyses demonstrated an improvement in Code 1 cases attended within 15 min (Key Performance Indicator). However, for patients with out-of-hospital cardiac arrest or requiring lights and sirens transport to hospital, there was no improvement in response time performance. By the end of the study period, there was also no difference in the proportion of callers presenting to ED when compared with the estimated proportion assuming the revised CRM had not been implemented. CONCLUSION: The revised CRM was associated with improved Code 1 response time performance. However, there was no improvement in response times for high acuity patients, and no change in the proportion of callers presenting to ED.

Lower Bounds on the Noiseless Worst-Case Complexity of Efficient Global Optimization.

Efficient global optimization is a widely used method for optimizing expensive black-box functions. In this paper, we study the worst-case oracle complexity of the efficient global optimization problem. In contrast to existing kernel-specific results, we derive a unified lower bound for the oracle complexity of efficient global optimization in terms of the metric entropy of a ball in its corresponding reproducing kernel Hilbert space. Moreover, we show that this lower bound nearly matches the upper bound attained by non-adaptive search algorithms, for the commonly used squared exponential kernel and the Matérn kernel with a large smoothness parameter ν. This matching is up to a replacement of d/2 by d and a logarithmic term logRϵ, where d is the dimension of input space, R is the upper bound for the norm of the unknown black-box function, and ϵ is the desired accuracy. That is to say, our lower bound is nearly optimal for these kernels.

The Dragonflies and Damselflies (Insecta: Odonata) of Canada: species list, geographical distribution, status, and conservation ranks.

As of August 2023, 220 species in 57 genera and 10 families of damselflies and dragonflies (Insecta: Odonata) are recorded for Canada. Since the publication of the first edition in 2005, 14 species have been added to the list; one,Neurocordulia obsoleta (Say) has been removed because of a misidentification and another, Sympetrum occidentale, has been to synonymy. Conservation ranks are given for species in all 13 provinces and territories. English and French names for all listed species are included. Literature sources are discussed and presented, as is information on species status and the addition and exclusion of species. Sections on taxonomy and variation, subspecies, presumed hybrids, the introduction of exotic species, notable range extensions and observations, and conservation and protection are also provided.

Frequency of visual involvement in a 10-year interdisciplinary cohort of patients with giant cell arteritis.

BACKGROUND: We present the largest study of the frequency and nature of visual complications in a cohort of 350 patients consecutively diagnosed with giant cell arteritis (GCA). METHODS: All individuals were assessed using structured forms and diagnosed using imaging or biopsy. A binary logistic regression model was used to analyse data for predicting visual loss. RESULTS: Visual symptoms occurred in 101 (28.9%) patients, with visual loss in one or both eyes in 48 (13.7%) patients. Four patients had binocular visual loss. Anterior ischaemic optic neuropathy (N=31), retinal artery obstruction (N=8) and occipital stroke (N=2) were the main causes of visual loss. Of the 47 individuals who had repeat visual acuity testing at 7 days, three individuals had improvement to 6/9 or better. After introducing the fast-track pathway, the frequency of visual loss decreased from 18.7% to 11.5%. Age at diagnosis (odds ratio (OR) 1.12) and headache (OR 0.22) were significant determinants of visual loss in a multivariate model. Jaw claudication trended to significance (OR 1.96, p=0.054). CONCLUSIONS: We recorded a visual loss frequency of 13.7% in the largest cohort of patients with GCA examined from a single centre. Although improvement in vision was rare, a dedicated fast-track pathway reduced visual loss. Headache could result in earlier diagnosis and protect against visual loss.

Palliative care teaching in the new internal medicine curriculum: Project ECHO-an innovative approach to postgraduate education.

BACKGROUND: The Internal Medicine Training (IMT) Programme is an evolution of Core Medical Training introduced in 2019. The IMT curriculum places an increased emphasis on palliative care; however, access to palliative care training is variable. Project ECHO (Extension of Community Healthcare Outcomes) develops communities of practice and is a valuable tool for medical education. We report on an evaluation of Project ECHO to deliver palliative medicine training across a geographically large deanery in the North of England. METHODS: The Project ECHO training programme involved multipoint video technology, telementoring, expert talks and case-based discussions over six sessions, and was fully mapped to the palliative care component of the IMT curriculum. We collected data particularly around attendance and self-reported confidence and knowledge. RESULTS: By creating a community of practice, we provided virtual placements and over 9 hours of virtual direct contact with palliative medicine consultants; and in total, 921 individual attendances occurred, with 62% attending all six sessions. The course was associated with an increase in self-reported confidence and high satisfaction. DISCUSSION: Project ECHO is an effective method of delivering teaching to trainees across a large geographical area. Course evaluation shows outstanding results in trainee satisfaction, confidence, knowledge, patient care, clinical skills and reduction in fear when managing death and dying.

COVID-19-associated mixed cilioretinal artery occlusion and central venous occlusion in a fit and healthy young patient.

Retinal artery occlusion is an unusual phenomenon in younger patients without background of diseases leading to hypercoagulable states. COVID-19 infection is increasingly recognised as being associated with thrombotic conditions. We present a case of a young female who is otherwise fit and well apart from recent COVID-19 infection, who presented with a mixed cilioretinal artery and venous occlusion.

Multicenter Evaluation of Diagnostic Circulating Biomarkers to Detect Sight-Threatening Diabetic Retinopathy.

Importance: It is a global challenge to provide regular retinal screening for all people with diabetes to detect sight-threatening diabetic retinopathy (STDR). Objective: To determine if circulating biomarkers could be used to prioritize people with type 2 diabetes for retinal screening to detect STDR. Design, Setting, and Participants: This cross-sectional study collected data from October 22, 2018, to December 31, 2021. All laboratory staff were masked to the clinical diagnosis, assigned a study cohort, and provided with the database containing the clinical data. This was a multicenter study conducted in parallel in 3 outpatient ophthalmology clinics in the UK and 2 centers in India. Adults 40 years and older were categorized into 4 groups: (1) no history of diabetes, (2) type 2 diabetes of at least 5 years' duration with no evidence of DR, (3) nonproliferative DR with diabetic macular edema (DME), or (4) proliferative DR. STDR comprised groups 3 and 4. Exposures: Thirteen previously verified biomarkers were measured using enzyme-linked immunosorbent assay. Main Outcomes and Measures: Severity of DR and presence of DME were diagnosed using fundus photographs and optical coherence tomography. Weighted logistic regression and receiver operating characteristic curve analysis (ROC) were performed to identify biomarkers that discriminate STDR from no DR beyond the standard clinical parameters of age, disease duration, ethnicity (in the UK) and hemoglobin A1c. Results: A total of 538 participants (mean [SD] age, 60.8 [9.8] years; 319 men [59.3%]) were recruited into the study. A total of 264 participants (49.1%) were from India (group 1, 54 [20.5%]; group 2, 53 [20.1%]; group 3, 52 [19.7%]; group 4, 105 [39.8%]), and 274 participants (50.9%) were from the UK (group 1, 50 [18.2%]; group 2, 70 [25.5%]; group 3, 55 [20.1%]; group 4, 99 [36.1%]). ROC analysis (no DR vs STDR) showed that in addition to age, disease duration, ethnicity (in the UK) and hemoglobin A1c, inclusion of cystatin C had near-acceptable discrimination power in both countries (area under the receiver operating characteristic curve [AUC], 0.779; 95% CI, 0.700-0.857 in 215 patients in the UK with complete data; AUC, 0.696; 95% CI, 0.602-0.791 in 208 patients in India with complete data). Conclusions and Relevance: Results of this cross-sectional study suggest that serum cystatin C had good discrimination power in the UK and India. Circulating cystatin-C levels may be considered as a test to identify those who require prioritization for retinal screening for STDR.

Identification and quantification of peritoneal metastases in patients with ovarian cancer with multidetector computed tomography: correlation with surgery and surgical outcome.

PURPOSE: The purpose of the study was to determine the performance of a 64-row multidetector computed tomography (MDCT) in identifying peritoneal metastases in ovarian cancer patients undergoing surgical staging or cytoreduction. METHODS: This retrospective study included 76 patients who underwent surgical staging (n = 11) or cytoreduction (n = 65). Patients had MDCT before surgery (mean, 24 [SD, 16.9] days) as well as correlative surgicopathologic data. For the imaging analysis, the peritoneal cavity was divided to 28 segments, which were assessed for absence or presence of disease. Rate of optimal cytoreduction at the time of surgery was recorded. The standard of reference for this study was surgery, unless there was proof of metastasis as assessed by follow-up imaging. Sensitivity and predictive accuracy of CT and surgery compared with the standard of reference were calculated. RESULTS: The overall sensitivity and accuracy were 81.2% and 94.3% for MDCT and 87.4% and 97.2% for surgery (P = 0.14, P = 0.007), respectively. There was no difference in the detection of lesions 1 cm or greater between MDCT and surgery (89.3% and 84.9%, respectively; P = 0.31); however, MDCT was less sensitive than surgery in detecting disease sites of less than 1 cm (65.5% and 92.3%, respectively; P = 0.001). For the subgroup of patients undergoing cytoreduction after neoadjuvant chemotherapy (NAC) (n = 30), sensitivities for MDCT and surgery were similar (80% and 76.9%, respectively [P = 0.71]). Although sensitivity of CT was not altered by NAC (P = 0.92), there was a significant decrease in sensitivity of surgical assessment after NAC (94% vs 76.9%; P = 0.003). CONCLUSIONS: Multidetector computed tomography (MDCT) has similar sensitivity as surgery for peritoneal metastases of 1 cm or greater. The maintained sensitivity of MDCT in detecting peritoneal disease after NAC, which is underestimated at surgery, may help surgical planning and may improve optimal cytoreduction rate in this group of patients.

A comparison of elderly care nursing in the UK and Japan.

AIM: The aim of this study was to gain insight into registered nurses' experiences of caring for older people in the UK and Japan. METHOD: Critical incident technique was used because of its ability to capture actual incidents from practice. Written, anonymous self-report data were collected during 2010. Participants were asked to recall two critical incidents where they had felt either rewarded or challenged at work. Data were analysed using thematic analysis. FINDINGS: Analysis revealed striking similarities in the experiences of nurses from both countries. Four main themes emerged: the challenges of a complex work environment; the challenges of resolving ethical conflicts; the rewards of establishing meaningful relationships; and the rewards of achieving excellence in individual patient care. CONCLUSION: The study provides new evidence from two different countries that although there are some challenges, nurses reap many rewards from working with older people.

Coronavirus disease 2019 (COVID-19) and psychological distress in China: Does neighbourhood matter?

Using individual data (n = 937) obtained from an online questionnaire between 20th January and 13th February, the early stage of the outbreak of the Coronavirus Disease 2019 (COVID-19) in 2020, we explore the direct association between people's perceptions of Coronavirus Disease 2019 (COVID-19) and psychological distress. We further examine the moderating role of neighbourhood environment and this distress. We find that people living in infected communities tend to perceive higher level of psychological distress compared to people living in uninfected communities. People's expected duration of COVID-19 is associated with higher psychological distress and this is partially moderated by the perception of neighbourhood noise level and overall environment quality. Additional results quantify the evidence that a quiet and well maintained neighbourhood environment could reduce the negative influences of expectation of a long duration of COVID-19 on people's psychological distress.

Improving the quality of care for people with giant cell arteritis.

Giant cell arteritis (GCA) is a systemic vasculitis with numerous potential complications and societal costs. After the publication of international guidelines, we found a number of deficiencies in the local care pathway of patients suspected to have GCA. These included poor referral and management pathways, and absence of dedicated monitoring and follow-up. In this paper, we describe a 10-year transformation which led to our service being nominated for a national award.A comprehensive consensus pathway saw referral numbers rise from 19 to 135 from 2012 to 2019. A consensus management pathway has meant that patients are assessed within 2 days of referral and glucocorticoids started at point of referral. All patients with suspected GCA are clerked and managed according to this agreed pathway which is available on the hospital intranet. The introduction of diagnostic ultrasonography has meant that the need for biopsies has dropped by >80% reducing the annual cost of diagnostics by >£140,000. The introduction of a vasculitis specialist nurse has resulted in improving education, contact and speed of access to our service. The improvements in the service resulted in our service becoming a finalist in the Royal College of Physicians Excellence in Patient Care Award in 2020.