Microbial induced wettability alteration with implications for Underground Hydrogen Storage.

Characterization of the microbial activity impacts on transport and storage of hydrogen is a crucial aspect of successful Underground Hydrogen Storage (UHS). Microbes can use hydrogen for their metabolism, which can then lead to formation of biofilms. Biofilms can potentially alter the wettability of the system and, consequently, impact the flow dynamics and trapping mechanisms in the reservoir. In this study, we investigate the impact of microbial activity on wettability of the hydrogen/brine/rock system, using the captive-bubble cell experimental approach. Apparent contact angles are measured for bubbles of pure hydrogen in contact with a solid surface inside a cell filled with living brine which contains sulphate reducing microbes. To investigate the impact of surface roughness, two different solid samples are used: a "rough" Bentheimer Sandstone sample and a "smooth" pure Quartz sample. It is found that, in systems where buoyancy and interfacial forces are the main acting forces, the impact of biofilm formation on the apparent contact angle highly depends on the surface roughness. For the "rough" Bentheimer sandstone, the apparent contact angle was unchanged by biofilm formation, while for the smooth pure Quartz sample the apparent contact angle decreased significantly, making the system more water-wet. This decrease in apparent contact angle is in contrast with an earlier study present in the literature where a significant increase in contact angle due to microbial activity was reported. The wettability of the biofilm is mainly determined by the consistency of the Extracellular Polymeric Substances (EPS) which depends on the growth conditions in the system. Therefore, to determine the impact of microbial activity on the wettability during UHS will require accurate replication of the reservoir conditions including surface roughness, chemical composition of the brine, the microbial community, as well as temperature, pressure and pH-value conditions.

Impact of Electronic Health Record Use on Cognitive Load and Burnout Among Clinicians: Narrative Review.

The cognitive load theory suggests that completing a task relies on the interplay between sensory input, working memory, and long-term memory. Cognitive overload occurs when the working memory's limited capacity is exceeded due to excessive information processing. In health care, clinicians face increasing cognitive load as the complexity of patient care has risen, leading to potential burnout. Electronic health records (EHRs) have become a common feature in modern health care, offering improved access to data and the ability to provide better patient care. They have been added to the electronic ecosystem alongside emails and other resources, such as guidelines and literature searches. Concerns have arisen in recent years that despite many benefits, the use of EHRs may lead to cognitive overload, which can impact the performance and well-being of clinicians. We aimed to review the impact of EHR use on cognitive load and how it correlates with physician burnout. Additionally, we wanted to identify potential strategies recommended in the literature that could be implemented to decrease the cognitive burden associated with the use of EHRs, with the goal of reducing clinician burnout. Using a comprehensive literature review on the topic, we have explored the link between EHR use, cognitive load, and burnout among health care professionals. We have also noted key factors that can help reduce EHR-related cognitive load, which may help reduce clinician burnout. The research findings suggest that inadequate efforts to present large amounts of clinical data to users in a manner that allows the user to control the cognitive burden in the EHR and the complexity of the user interfaces, thus adding more "work" to tasks, can lead to cognitive overload and burnout; this calls for strategies to mitigate these effects. Several factors, such as the presentation of information in the EHR, the specialty, the health care setting, and the time spent completing documentation and navigating systems, can contribute to this excess cognitive load and result in burnout. Potential strategies to mitigate this might include improving user interfaces, streamlining information, and reducing documentation burden requirements for clinicians. New technologies may facilitate these strategies. The review highlights the importance of addressing cognitive overload as one of the unintended consequences of EHR adoption and potential strategies for mitigation, identifying gaps in the current literature that require further exploration.

Non-invasive sampling reveals low mitochondrial genetic diversity for an island endemic species: The critically endangered Grenada Dove Leptotila wellsi.

As an island endemic with a decreasing population, the critically endangered Grenada Dove Leptotila wellsi is threatened by accelerated loss of genetic diversity resulting from ongoing habitat fragmentation. Small, threatened populations are difficult to sample directly but advances in molecular methods mean that non-invasive samples can be used. We performed the first assessment of genetic diversity of populations of Grenada Dove by (a) assessing mtDNA genetic diversity in the only two areas of occupancy on Grenada, (b) defining the number of haplotypes present at each site and (c) evaluating evidence of isolation between sites. We used non-invasively collected samples from two locations: Mt Hartman (n = 18) and Perseverance (n = 12). DNA extraction and PCR were used to amplify 1751 bps of mtDNA from two mitochondrial markers: NADH dehydrogenase 2 (ND2) and Cytochrome b (Cyt b). Haplotype diversity (h) of 0.4, a nucleotide diversity (π) of 0.00023 and two unique haplotypes were identified within the ND2 sequences; a single haplotype was identified within the Cyt b sequences. Of the two haplotypes identified, the most common haplotype (haplotype A = 73.9%) was observed at both sites and the other (haplotype B = 26.1%) was unique to Perseverance. Our results show low mitochondrial genetic diversity and clear evidence for genetically isolated populations. The Grenada Dove needs urgent conservation action, including habitat protection and potentially augmentation of gene flow by translocation in order to increase genetic resilience and diversity with the ultimate aim of securing the long-term survival of this critically endangered species.

Nanoscale heterogeneity of arsenic and selenium species in coal fly ash particles: analysis using enhanced spectroscopic imaging and speciation techniques.

Coal combustion byproducts are known to be enriched in arsenic (As) and selenium (Se). This enrichment is a concern during the handling, disposal, and reuse of the ash as both elements can be harmful to wildlife and humans if mobilized into water and soils. The leaching potential and bioaccessibility of As and Se in coal fly ash depends on the chemical forms of these elements and their association with the large variety of particles that comprise coal fly ash. The overall goal of this research was to determine nanoscale and microscale solid phase mineral associations and oxidation states of As and Se in fly ash. We utilized nanoscale 2D imaging (30-50 nm spot size) with the Hard X-ray Nanoprobe (HXN) in combination with microprobe X-ray capabilities (∼5 µm resolution) to determine the As and Se elemental associations. Speciation of As and Se was also measured at the nano- to microscale with X-ray absorption spectroscopy. The enhanced resolution of HXN showed As and Se as either diffusely located around or comingled with Ca- and Fe-rich particles. The results also showed nanoparticles of Se attached to the surface of fly ash grains. Overall, a comparison of As and Se species across scales highlights the heterogeneity and complexity of chemical associations for these trace elements of concern in coal fly ash.

Carbonate Coprecipitation for Cd and Zn Treatment and Evaluation of Heavy Metal Stability Under Acidic Conditions.

Mining wastes or combustion ash are materials of high carbon sequestration potential but are also known for their toxicity in terms of heavy metal content. To utilize such waste materials for engineered carbon mineralization purposes, there is a need to investigate the fate and mobility of toxic metals. This is a study of the coprecipitation of metals with calcium carbonate for environmental heavy metal mitigation. The study also examines the stability of precipitated phases under environmentally relevant acid conditions. For a wide range of cadmium (Cd) and zinc (Zn) concentrations (10 to 5000 mg/L), induced coprecipitation led to greater than 99% uptake from water. The calcium carbonate phases were found to contain amounts as high as 9.9 wt % (Cd) and 17 wt % (Zn), as determined by novel synchrotron techniques, including X-ray fluorescence element mapping and three-dimensional (3D) nanotransmission X-ray microscopy (TXM). TXM imaging revealed first-of-a-kind observations of chemical gradients and internal nanoporosity within particles. These observations provided new insights into the mechanisms leading to the retention of coprecipitated heavy metals during the dissolution of calcite in acidic (pH 4) solutions. These observations highlight the feasibility of utilizing carbonate coprecipitation as an engineered approach to the durable sequestration of toxic metals.

Early supported discharge for older adults admitted to hospital with medical complaints: a systematic review and meta-analysis.

INTRODUCTION: Early supported discharge (ESD) aims to link acute and community care, allowing hospital inpatients to return home and continue to receive the necessary input from healthcare professionals that they would otherwise receive in hospital. It has been researched extensively in the stroke population, showing reduced length of stay for patients and improved functional outcomes. This systematic review aims to explore the totality of evidence for the use of ESD in an older adult population who have been hospitalised with medical complaints. METHODS: Systematic searches were conducted in MEDLINE, CINAHL, Ebsco, Cochrane Library and EMBASE. Randomised controlled trials (RCTs) and quasi-RCTs were included if they provided an ESD intervention to older adults admitted to hospital for medical complaints compared with usual inpatient care. Patient and process outcomes were explored. The Cochrane Risk of Bias Tool was used to assess methodological quality. A meta-analysis was conducted using RevMan 5.4.1. RESULTS: Five RCTs met the inclusion criteria. The quality of the trials was mixed overall, with high levels of heterogeneity. ESD demonstrated a statistically significant reduction in length of stay (MD -6.04 days, 95% CI -9.76 to -2.32) and improvements in function, cognition, and health-related quality of life, with no increased risk of long-term care admission, hospital re-admission or mortality in the ESD interventions versus usual care groups. DISCUSSION: This review demonstrates that ESD positively impacts patient and process outcomes for older adults. Further consideration should be given to exploring the experiences of those involved in ESD including older adults, family members/caregivers as well as healthcare professionals.

Early Supported Discharge for Older Adults Admitted to Hospital with Medical Complaints: A Qualitative Study Exploring the Views of Stakeholders.

Introduction: Early supported discharge (ESD) is well established as a model of health service delivery for people with stroke. Emerging evidence indicates that ESD also reduces the length of stay for older medical inpatients. There is a dearth of evidence exploring the views of stakeholders on ESD as a model of care for older medical inpatients. The overall aim of this study is to explore the views and perceptions of older adults, family carers and healthcare professionals on the potential role of ESD for older adults admitted to hospital with medical complaints. Methods: Purposeful sampling was used to recruit older adults and family carers for interview. For Healthcare Professionals (HCPs), snowball purposeful sampling was used. Phone interviews took place following a semi-structured interview guide. Focus groups were moderated by A-MM. Braun and Clarke's approach to thematic analysis was used. Ethical approval was granted by the HSE Mid-Western Area Regional Ethics Committee in November 2021 (REC Ref. 096/2021). Results: Fifteen HCPs took part across three focus groups, with six older adults and two family members participating in one-to-one interviews. Three themes were identified: 1. Pre-ESD experiences of providing and receiving older adult inpatient care, 2. Navigating discharge procedures from acute hospital services, 3. A vision for more integrated model of care and a medical ESD team. Discussion: This study provided insight into the current discharge experiences of older adult care in the acute setting, the potential role for ESD in this population and the key factors that would need to be considered for the running of an ESD service for older adults admitted to hospital with medical complaints. Conclusion: This research highlights the barriers and facilitators to ESD for older medical inpatients from the perspectives of key stakeholders. Given the adverse outcomes associated with prolonged hospital stay, these findings will help inform the development of a feasibility trial, examining patient and process outcomes for older adults admitted to hospital with medical complaints who receive an ESD intervention.

A Single-Center, Observational Study of 607 Children and Young People Presenting With Differences of Sex Development (DSD).

Context: Differences of sex development (DSD) represent a wide range of conditions presenting at different ages to various health professionals. Establishing a diagnosis, supporting the family, and developing a management plan are important. Objective: We aimed to better understand the presentation and prevalence of pediatric DSD. Methods: A retrospective, observational cohort study was undertaken in a single tertiary pediatric center of all children and young people (CYP) referred to a DSD multidisciplinary team over 25 years (1995-2019). In total, 607 CYP (520 regional referrals) were included. Data were analyzed for diagnosis, sex-assignment, age and mode of presentation, additional phenotypic features, mortality, and approximate point prevalence. Results: Among the 3 major DSD categories, sex chromosome DSD was diagnosed in 11.2% (68/607) (most commonly 45,X/46,XY mosaicism), 46,XY DSD in 61.1% (371/607) (multiple diagnoses often with associated features), while 46,XX DSD occurred in 27.7% (168/607) (often 21-hydroxylase deficiency). Most children (80.1%) presented as neonates, usually with atypical genitalia, adrenal insufficiency, undescended testes or hernias. Those presenting later had diverse features. Rarely, the diagnosis was made antenatally (3.8%, n = 23) or following incidental karyotyping/family history (n = 14). Mortality was surprisingly high in 46,XY children, usually due to complex associated features (46,XY girls, 8.3%; 46,XY boys, 2.7%). The approximate point prevalence of neonatal referrals for investigation of DSD was 1 in 6347 births, and 1 in 5101 overall throughout childhood. Conclusion: DSD represent a diverse range of conditions that can present at different ages. Pathways for expert diagnosis and management are important to optimize care.

Establishing risk factors and outcomes for congenital hypothyroidism with gland in situ using population-based data linkage methods: study protocol.

INTRODUCTION: There has been an increase in the birth prevalence of congenital hypothyroidism (CH) since the introduction of newborn screening, both globally and in the UK. This increase can be accounted for by an increase in CH with gland in situ (CH-GIS). It is not known why CH-GIS is becoming more common, nor how it affects the health, development and learning of children over the long term. Our study will use linked administrative health, education and clinical data to determine risk factors for CH-GIS and describe long-term health and education outcomes for affected children. METHODS AND ANALYSIS: We will construct a birth cohort study based on linked, administrative data to determine what factors have contributed to the increase in the birth prevalence of CH-GIS in the UK. We will also set up a follow-up study of cases and controls to determine the health and education outcomes of children with and without CH-GIS. We will use logistic/multinomial regression models to establish risk factors for CH-GIS. Changes in the prevalence of risk factors over time will help to explain the increase in birth prevalence of CH-GIS. Multivariable generalised linear models or Cox proportional hazards regression models will be used to assess the association between type of CH and school performance or health outcomes. ETHICS AND DISSEMINATION: This study has been approved by the London Queen Square Research Ethics Committee and the Health Research Authority's Confidentiality Advisory Group CAG. Approvals are also being sought from each data provider. Obtaining approvals from CAG, data providers and information governance bodies have caused considerable delays to the project. Our methods and findings will be published in peer-reviewed journals and presented at academic conferences.

A biallelic loss-of-function PDIA6 variant in a second patient with polycystic kidney disease, infancy-onset diabetes, and microcephaly.

We report a second patient with intrauterine growth retardation, congenital polycystic kidney disease, infancy-onset diabetes, microcephaly, and liver fibrosis caused by a homozygous PDIA6 loss-of-function variant. Our study further defines the genetic and clinical features of this rare syndromic form of infancy-onset diabetes.

MECHANISMS IN ENDOCRINOLOGY: The pathophysiology of transient congenital hypothyroidism.

Transient congenital hypothyroidism (TCH) refers to congenital hypothyroidism which spontaneously resolves in the first few months or years of life. Currently, there is a paucity of reliable markers predicting TCH at diagnosis, and the diagnosis is established following the withdrawal of levothyroxine therapy around 3 years of age. The incidence of TCH is increasing, and it is a major contributor to the overall increase in the incidence of CH in recent studies. Both genetic factors, in particular mutations affecting DUOX2 and DUOXA2, and environmental factors, for example, iodine deficiency and excess, anti- TSHR antibodies and exposure to antithyroid or iodine-rich medications, may cause TCH. Resolution of TCH in childhood may reflect both normal thyroid physiology (decreased thyroid hormone biosynthesis requirements after the neonatal period) and clearance or cessation of environmental precipitants. The relative contributions and interactions of genetic and environmental factors to TCH, and the extent to which TCH may be prevented, require evaluation in future population-based studies.

Early supported discharge for older adults admitted to hospital with medical complaints: a systematic review and meta-analysis.

INTRODUCTION: Early supported discharge (ESD) aims to link acute and community care, allowing hospital inpatients to return home and continue to receive the necessary input from healthcare professionals that they would otherwise receive in hospital. The concept has shown reduced length of stay and improved functional outcomes in stroke patients. This systematic review aims to explore the totality of evidence for the use of early supported discharge in older adults hospitalised with medical complaints. METHODS: A literature search of CINAHL in EBSCO, Cochrane Central Register of Controlled Trials in the Cochrane Library (CENTRAL), EMBASE and MEDLINE in EBSCO was carried out. Randomised controlled trials or quasi-randomised controlled trials were included. The Cochrane Risk of Bias Tool 2.0 was used for quality assessment. The primary outcome measure was hospital length of stay. Secondary outcomes included mortality, function, health related quality of life, hospital readmissions, long-term care admissions and cognition. A pooled meta-analysis was conducted using RevMan software 5.4.1. RESULTS: Five studies met the inclusion criteria. All studies were of some concern in terms of their risk of bias. Statistically significant effects favouring ESD interventions were only seen in terms of length of stay (REM, MD = -6.04, 95% CI -9.76 to -2.32, I2 = 90%, P = 0.001). No statistically significant effects favouring ESD interventions were established in secondary outcomes. CONCLUSION: ESD interventions can have a statistically significant impact on the length of stay of older adults admitted to hospital for medical reasons. There is a need for further higher quality research in the area, with standardised interventions and outcome measures used.

Rockwood Clinical Frailty Scale as a predictor of adverse outcomes among older adults undergoing aortic valve replacement: a protocol for a systematic review.

INTRODUCTION: Frailty is associated with adverse outcomes relating to cardiac procedures. It has been proposed that frailty scoring should be included in the preoperative assessment of patients undergoing aortic valve replacement. We aim to examine the Rockwood Clinical Frailty Scale (CFS), as a predictor of adverse outcomes following aortic valve replacement. METHODS AND ANALYSIS: Prospective and retrospective cohort studies and randomised controlled trials assessing both the preoperative frailty status (as per the CFS) and incidence of adverse outcomes among older adults undergoing either surgical aortic valve replacement or transcatheter aortic valve replacement will be included. Adverse outcomes will include mortality and periprocedural complications, as well as a composite of 30-day complications. A search will be conducted from 2005 to present using a prespecified search strategy. Studies will be screened for inclusion by two reviewers, with methodological quality assessed using the Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2) tool. Relative risk ratios with 95% CIs will be generated for each outcome of interest, comparing frail with non-frail groups. Data will be plotted on forest plots where applicable. The quality of the evidence will be determined using the Grading of Recommendations, Assessment, Development and Evaluation tool. ETHICS AND DISSEMINATION: Ethical approval is not required for this study as no primary data will be collected. We will publish the review in a peer-reviewed journal on completion. PROSPERO REGISTRATION NUMBER: CRD42020213757.

Audit of inpatient acute stroke services in a university teaching hospital, 2020.

BACKGROUND: We aimed to assess stroke care at an Irish university teaching hospital and benchmark against national (Irish National Audit of Stroke 2019) and international (6th SSNAP Annual Report; American Heart Association, 2013) practice to inform a quality improvement strategy. METHODS: All patients with a HIPE discharge diagnosis of Cerebral Infarction or Cerebral Haemorrhage (1 January to 31 December 2019) were identified through both the HIPE database and the institutional Stroke Portal. RESULTS: A total of 419 patients were included (56.6% male, mean age 72). The following were comparable/better than findings from the Irish National Audit of Stroke: median duration of symptoms-3 h 6 min; 10% received thrombolysis; median door to needle time-60 min; 78.5% admitted to the stroke unit; 81.1% had a swallow assessment; in-patient mortality rate-10.5%; rates of institutionalisation-3.8%. The following areas were below the national average: overall door to imaging time-median 104 min; rate of thrombectomy-4%; 11.5% had mood screening; median length of stay- 12 days. DISCUSSION: Using national and international audit data as an institutional benchmark provides a standard with which a service can be compared to highlight areas for improvement. We identified mood screening, swallow screening, thrombectomy rates, length of stay and time to neuroimaging as key areas for development in our centre. We are currently completing a process map to determine cause, effect, and solutions, and we will implement change using PDSA methodology as per SQUIRE 2.0 guidelines. The results of the re-audit cycle for 2020 will be available in 2021 to inform our progress. Ongoing quality improvement is essential for stroke care, which is a leading cause of death and disability in Ireland.

Sexual Shame as a Unique Distress Outcome of Morally Incongruent Pornography Use: Modifications and Methodological Considerations.

Researchers focused on the model of pornography problems due to moral incongruence (PPMI) have suggested that perceptions of addiction, stemming from a misalignment between one's moral values and online sexual behavior, may lead to heightened sexual shame. Even so, it has been suggested that the associations found in previous models of PPMI may have been inflated by the inclusion of the emotional distress subscale in the widely used Cyber Pornography Use Inventory (CPUI-9), leading many to use the abridged 4-item version (i.e., the CPUI-4), which excludes emotional distress. Prior models assessing sexual shame have yet to fully address this potential methodological limitation. Considering advances in the conceptualization of PPMI and recommendations concerning best practices, a sample of participants (N = 296) that reported using pornography in the last six months was utilized to compare findings from two moderated mediation models. The first model assessed the differential strength of effects when the subscales of the CPUI-9 were assessed as separate mediators of the associations between moral incongruence and sexual shame, while the second model examined whether such associations persisted when using the recommended CPUI-4. Model results provide further justification for previous findings, indicating that associations between constructs were not the sole result of emotional distress, which supports the utility of the CPUI-4 in models that include sexual shame. Findings provide added support for sexual shame as a unique outcome among those who, due to moral incongruence, perceive that they are addicted to Internet pornography.

Clinical perception of effectiveness of virtual appointments and comparison with appointment outcomes at a specialist children's hospital.

INTRODUCTION: A transition from face-to-face to virtual consultations occurred in response to the COVID-19 pandemic. Evaluation of outcome data is essential for future healthcare modelling. METHODS: Clinicians at a children's hospital evaluated perceptions of face-to-face video and telephone appointments by questionnaire. Responses were compared with operational outcomes from June 2019 and June 2020. RESULTS: Ninety-three clinicians responded from 28 subspecialties. Virtual consultations increased from 6% (2019) to 67% (2020). No differences were found between appointment types for recording a medical and social history; a significant difference (p<0.001) was seen for the perceived ability to detect clinical signs, organise investigations and make a diagnosis. The proportion of appointments resulting in discharge compared with face-to-face visits was unchanged. The proportion of patients requiring further contact increased from 35% (32% face-to-face and 3% telephone) to 46% (14% face-to-face; 21% telephone and 11% video; chi-squared 426; p<0.0001).The percentage of patients offered an appointment following two 'was not brought' appointments increased from 71% (2019) to 81% (2020) and was most common following telephone appointments (20% face-to-face, 43% telephone and 18% video; chi-squared 474; p<0.0001). CONCLUSION: The perception of clinicians is that virtual appointments enabled continuity of paediatric care with improved clinical assessment capability and attendance during video consultations compared with telephone consultations.

The essence of healthcare records: embedded electronic health record system microblogging functionality for patient care narrative.

INTRODUCTION: Electronic health record (EHR) systems capture information relating to patients across many specialties but can be complex, making rapid evaluation and communication of current important issues difficult. METHODS: As part of a children's hospital EHR implementation, we developed and implemented an embedded microblogging platform to allow users to provide a short summary of main issues or actions relating to the encounter, 'Essence' capturing the essence of the interaction. We reviewed usage by specialty and user type over a 1-year period. RESULTS: Ninety-one thousand, nine-hundred and fifty Essence entries were committed across 49 specialty areas during a 12-month period, April 2019 - April 2020. The specialties with greatest usage were cardiology, neurosurgery, intensive care, respiratory medicine and neurology, with 70% of entries by nursing staff. The median number of words used per entry was 17 words (range 1-120; mean 20.7), and microblogs were mainly used to describe actions, events or planned care. Manual content analysis of 200 representative entries demonstrated categories of importance (including clinical status, treatment plan, investigations, procedures and diagnoses) suggesting appropriate clinical utility. CONCLUSION: Incorporation of an embedded EHR microblogging platform to capture key interactions with healthcare professionals represents a novel approach to coordinating care communication and is widely used across specialties, especially by nursing staff.

Early supported discharge for older adults admitted to hospital with medical complaints: a protocol for a systematic review.

INTRODUCTION: Early supported discharge (ESD) aims to link acute and community care, allowing hospital inpatients to return home and continue to receive the necessary input from healthcare professionals that they would otherwise receive in hospital. The concept has been researched extensively in the stroke population, showing reduced length of stay for patients and improved functional outcomes. This systematic review aims to explore the totality of evidence for the use of ESD in an older adult population who have been hospitalised with medical complaints. METHODS: A systematic review of randomised controlled trials and quasi randomised controlled trials will be carried out in line with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Studies will be included if they provide an ESD intervention to older adults admitted to hospital for medical complaints compared with continuing inpatient care. MEDLINE, CINAHL, CENTRAL and EMBASE databases will be searched. The primary outcome measure will be length of hospital stay, secondary outcomes will include functional abilities, falls, quality of life, carer and patient satisfaction, unplanned emergency department re-presentation, unscheduled hospital readmission, nursing home admission or mortality. Titles and abstracts of studies will be screened independently by two authors. The Cochrane Risk of Bias Tool will be used independently by two reviewers to assess the methodological quality of the included studies. GRADE will be used to assess the quality of the body of evidence. A pooled meta-analysis will be conducted using RevMan software V.5.4.1, depending on the uniformity of the data. ETHICS AND DISSEMINATION: The authors will present the findings of the review to a patient and public involvement stakeholder panel of older people that has been established at the Ageing Research Centre in the University of Limerick. Formal ethical approval is not required for the review as all data collected will be secondary data and will be analysed anonymously. PROSPERO REGISTRATION NUMBER: CRD42021223112.

The SARS-CoV-2 pandemic is associated with increased severity of presentation of childhood onset type 1 diabetes mellitus: A multi-centre study of the first COVID-19 wave.

OBJECTIVE: Children are usually mildly affected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, COVID-19). However, the pandemic has caused collateral damage to those with non-COVID-19 diseases. We aimed to determine the impact of the COVID-19 pandemic on the presentation of newly diagnosed childhood onset type 1 diabetes. METHODS: This was a cross-sectional study conducted over a 1-year period. We compared the severity of presentation of new-onset type 1 diabetes in children under the age of 18 presenting to the multi-centre North Central London diabetes network before (1 July 2019 to 22 March 2020) and during (23 March 2020 to 30 June 2020) the first wave of the COVID-19 pandemic in the United Kingdom. RESULTS: Over the 1-year study period, a total of 30 children presented with new-onset type 1 diabetes during the pre-pandemic period and 17 presented during the first COVID-19 wave. Children presented more frequently in diabetic ketoacidosis (DKA) during the first COVID-19 wave compared with pre-pandemic (pre-pandemic: mild 13%, moderate 6.7%, severe 10%; first COVID-19 wave: mild 5.9%, moderate 24%, severe 47%; p = 0.002). During the first COVID-19 wave, DKA presentations in children with a family history of type 1 diabetes were fewer compared to those without a family history (33.3% vs. 100.0%; p = 0.006). Children presenting in severe DKA pre-pandemic were younger than those not in severe DKA (3.9 years vs. 12.2 years, p < 0.001) but this difference was not significant during the first COVID-19 wave (10.1 years vs. 11.2 years, p = 0.568). Presenting HbA1c measurement was higher in those presenting during the first COVID-19 wave (13.0 ± 1.7 vs. 10.4 ± 3.2%; 119 ± 19 vs. 90 ± 35 mmol/mol; p = 0.008). CONCLUSION: The COVID-19 pandemic is associated with increased severity of presentation of childhood onset type 1 diabetes. Whatever the context, young people with suspected new-onset type 1 diabetes should be referred for urgent clinical review.

Delirium and abnormal autonomic nervous system response to head-up tilt testing.

BACKGROUND: Delirium is a common condition with poorly understood pathophysiology. Various theories have been proposed including that delirious patients have reduced cerebral blood flow. We hypothesised that patients with delirium could have abnormal autonomic nervous system function, as assessed by tilt table testing, which would explain the alteration in blood flow. METHODS: A prospective cohort study of medical inpatients aged 65 years and older was undertaken. Delirium was assessed using DRS-R98 and DSM-IV criteria. Beat-to-beat blood pressure (BP) was recorded during tilt testing. Differences in BP changes between the two groups (those with delirium and those without) were explored. The association between severity of delirium and magnitude of BP changes was also examined. RESULTS: 64 participants were recruited during hospitalisation. 29 completed follow-up Head-Up Tilt testing. The mean age of participants was 80.8 years (SD 6.2 years). The control group (n = 12) had a median decrease in systolic BP of 17.5 mmHg (IQR 20.75). The delirium group (n = 17) had a median decrease in systolic BP of 1 mmHg (IQR 38.5), p = 0.04. As delirium severity scores increased, systolic BP change during tilting also increased (rs = 0.42, p = 0.03). CONCLUSION: Participants in the delirium group showed different BP responses to tilt test which may represent abnormal sympathetic response. This would be consistent with other features of delirium such as treatment response to centrally acting alpha-2 blockers. Equity of access to research for older, frail and delirious cohorts is essential but feasibility and acceptability needs to be optimised and factored into study design.