Hemocompatibility Assessment Platform Drive System Design: Trade-off between Motor Performance and Hemolysis.

Left ventricular assist devices (LVADs) have long been used to treat adults with heart failure, but LVAD options for pediatric patients with heart failure are lacking. Despite the urgent need for long-term, implantable pediatric LVADs, design challenges such as hemolysis, pump thrombosis, and bleeding persist. We have developed a Hemocompatibility Assessment Platform (HAP) to identify blood trauma from individual LVAD components.

Population level physical activity before and during the first national COVID-19 lockdown: A nationally representative repeat cross-sectional study of 5 years of Active Lives data in England.

Background: To limit the spread of COVID-19 in March 2020, the population of England was instructed to stay home, leaving only for essential shopping, health-care, work, or exercise. The impact on population activity behaviours is not clear. We describe changes in duration and types of activity undertaken by adults ≥16 years in England between March and May 2016-19 and 2020, by socio-demographic strata.

Gut microbiome and metabolome in a non-human primate model of chronic excessive alcohol drinking.

A relationship between the gut microbiome and alcohol use disorder has been suggested. Excessive alcohol use produces changes in the fecal microbiome and metabolome in both rodents and humans. Yet, these changes can be observed only in a subgroup of the studied populations, and reversal does not always occur after abstinence.

Faecal Haemoglobin Estimated by Faecal Immunochemical Tests-An Indicator of Systemic Inflammation with Real Clinical Potential.

Multimorbidity is the major cause of ill-health and premature death in developed countries. The ability to identify individuals at risk of developing chronic disease, particularly multimorbidity, reliably, and simply, and to identify undiagnosed disorders, is vital to reducing the global burden of disease. This narrative review, the first of recent studies, demonstrates that raised faecal haemoglobin concentration (f-Hb) is associated with increased all-cause and cause-specific mortality and with longer-term conditions including diabetes, hypertension, cardiovascular disease, and psoriasis, and with probable intake of particulate matter.

Pilot Study: The Queen Square Screening Test for Visual Deficits in Dementia.

The Queen Square Screening Test for Visual Deficits (QS test) screens for changes in visual processing. Our pilot study aimed to review the applicability of the QS test in individuals with dementia compared with those with normal cognition. Participants with major and minor neurocognitive disorder scored 50/71 (n=12) and 61/71 (n=10) respectively on the QS test, compared to 65/71 for age-matched healthy controls (n=11).

Improving Post-Release Care Engagement for People Living with HIV Involved in the Criminal Justice System: A Systematic Review.

Given sub-optimal HIV care outcomes for people living with HIV (PLWH) post-release from incarceration, we systematically searched peer-reviewed literature (2010-2021) describing controlled trial interventions aimed at improving Antiretroviral Therapy (ART) adherence and care linkage following release from correctional facilities for PLWH. Of 392 studies, 16 (4%) met the inclusion criteria. All studies were conducted in the United States and involved some form of intensive case management.

Concordant phylogeographic responses to large-scale coastal disturbance in intertidal macroalgae and their epibiota.

Major ecological disturbance events can provide opportunities to assess multispecies responses to upheaval. In particular, catastrophic disturbances that regionally extirpate habitat-forming species can potentially influence the genetic diversity of large numbers of codistributed taxa. However, due to the rarity of such disturbance events over ecological timeframes, the genetic dynamics of multispecies recolonization processes have remained little understood.

Establishing risk of vision loss in Leber hereditary optic neuropathy.

We conducted an updated epidemiological study of Leber hereditary optic neuropathy (LHON) in Australia by using registry data to establish the risk of vision loss among different LHON mutations, sex, age at onset, and mitochondrial haplogroup. We identified 96 genetically unrelated LHON pedigrees, including 56 unpublished pedigrees, and updated 40 previously known pedigrees, comprising 620 affected individuals and 4,948 asymptomatic carriers. The minimum prevalence of vision loss due to LHON in Australia in 2020 was one in 68,403 individuals.

A Novel Method to Safely De-Air a HeartWare System in a Single-Ventricle Patient by Utilizing ECMO and a Minimized CPB Circuit.

The survival of congenital heart disease (CHD) patients with single-ventricle (SV) physiology has markedly increased as a result of advances in operative techniques and postsurgical management. Nonetheless, these patients remain highly susceptible to end-stage heart failure requiring cardiac replacement therapies at early ages. Given a worldwide shortage of transplantable organs, mechanical circulatory support (MCS) represents an alternative treatment option.

Understanding disease-specific and non-specific factors predicting disordered eating in adults with coeliac disease.

An adverse relationship between coeliac disease and the development of disordered eating patterns is well established. The aim of this study was to replicate and extend Satherley et al.'s (2016) study exploring coeliac-specific and non-specific factors predicting disordered eating.

Aortic dissection and ruptures in adult congenital heart disease in Texas from 2009 to 2019.

Objectives: Acute thoracic aortic dissection and rupture (TADR) has an incidence of 5-7 per 100 000-person years. Today, most children with congenital heart disease (CHD) survive to become adults with congenital heart disease (ACHD). This study evaluates TADR in patients with ACHD in a large, hospitalized patient population over 11 years to evaluate the incidence, risk factors and outcomes associated with TADR.

Many but small HIV-1 non-B transmission chains in the Netherlands.

Objective: The aim of this study was to investigate introductions and spread of different HIV-1 subtypes in the Netherlands.

Design: We identified distinct HIV-1 transmission chains in the Netherlands within the global epidemic context through viral phylogenetic analysis of partial HIV-1 polymerase sequences from individuals enrolled in the ATHENA national HIV cohort of all persons in care since 1996, and publicly available international background sequences.

Methods: Viral lineages circulating in the Netherlands were identified through maximum parsimony phylogeographic analysis.

An Interdisciplinary Hospital-Based Committee to Improve Pediatric Bereavement Care.

Although frequently overshadowed by adult mortality rates and bereavement care needs, the death of a child can significantly jeopardize the physical, psychosocial, and emotional health of surviving parents, caregivers, and family members. Unfortunately, researchers have only recently begun to explore the trajectory of pediatric bereavement care needs. As an ongoing public health concern, health care institutions and related organizations must partner with interdisciplinary care providers and bereaved families to design effective and sustainable bereavement supports in their communities.

Good Engraftment but Quality and Donor Concerns for Cryopreserved Hemopoietic Progenitor Cell Products Collected During the COVID-19 Pandemic.

Changes to donor availability, collection center capacity, and travel restrictions during the early phase of the COVID-19 pandemic led to routine cryopreservation of most unrelated donor products for hematopoietic transplantation prior to the recipient commencing the conditioning regimen. We investigated the effect of this change on unrelated donor product quality and clinical outcomes. Product information was requested from transplantation centers in Australia and New Zealand and clinical outcome data from the Australasian Bone Marrow Transplant Recipient Registry (ABMTRR).

Epstein-Barr Virus Predicts Malignancy After Pediatric Heart Transplant, Induction Therapy and Tacrolimus Don't.

Background: Patients after heart transplantation are at increased risk for malignancy secondary to immunosuppression and oncogenic viral infections. Most common among children is posttransplant lymphoproliferative disorder (PTLD), occurring in 5% to 10% of patients. We used a national database to examine the incidence and risk factors for posttransplant malignancy.

Reinfection following successful direct-acting antiviral therapy for HCV infection among people attending an inner-city community health centre in Victoria, Canada.

Background: Studies of HCV reinfection following direct-acting antiviral (DAA) therapy among PWID have been limited by short follow-up and small case numbers. This study evaluated the incidence of HCV reinfection following successful DAA therapy among people attending an inner-city community health centre in Victoria, Canada.

Methods: In this observational study, participants treated with DAA therapy between November 2014 and December 31, 2019 were included.

Physicians' Ratings of their Supervisor's Leadership Behaviors and Their Subsequent Burnout and Satisfaction: A Longitudinal Study.

Objective: To evaluate the relationships between immediate supervisors' leadership qualities and the subsequent levels and changes in burnout and satisfaction of supervised physicians 2 years later.

Participants And Methods: In 2015 and 2017 physicians were asked to complete surveys that included the 9-item Mayo Clinic Leadership Score (range, 9 to 45) assessing their supervisor, an item about satisfaction with the organization, and two items from the Maslach Burnout Inventory. Individual participants' responses to the surveys were linked.

Short-Wave Sensitive ("Blue") Cone Activation Is an Aggravating Factor for Visual Snow Symptoms.

Visual Snow (VS) is a disorder characterised by the subjective perception of black-and-white visual static. The aetiology of this condition is not known. In our previous work we suggested that there is a link between short-wave (S or "blue" cone) signals and severity of visual snow symptoms.

PopART-IBM, a highly efficient stochastic individual-based simulation model of generalised HIV epidemics developed in the context of the HPTN 071 (PopART) trial.

Mathematical models are powerful tools in HIV epidemiology, producing quantitative projections of key indicators such as HIV incidence and prevalence. In order to improve the accuracy of predictions, such models need to incorporate a number of behavioural and biological heterogeneities, especially those related to the sexual network within which HIV transmission occurs. An individual-based model, which explicitly models sexual partnerships, is thus often the most natural type of model to choose.

Impact on patient management of non-mydriatic fundus photography compared to direct ophthalmoscopy in a regional Australian emergency department.

Objective: To investigate the management impact of non-mydriatic fundus photography (NMFP) implementation for appropriate ED patients; compare the diagnostic accuracy of direct ophthalmoscopy (DO) and NMFP, and determine the prevalence of fundus pathology in a regional Australian ED.

Methods: This before/after crossover study prospectively enrolled patients presenting with headache, neurological deficit, visual disturbance and/or hypertensive urgency. Patients received DO examination, then separate NMFP examination.