1,065 research outputs found

    Clinical significance of erectile dysfunction developing after acute coronary event : exception to the rule or confirmation of the artery size hypothesis?

    Get PDF
    Erectile dysfunction (ED) has been found to frequently precedes the onset of coronary artery disease (CAD), representing an early marker of subclinical vascular disease, included CAD. Its recognition is, therefore, a "window opportunity" to prevent a coronary event by aggressive treatment of cardiovascular risk factors. The artery size hypothesis (ASH) has been proposed as a putative mechanism to explain the relationship between ED and CAD. Since atherosclerosis is a systemic disorder all major vascular beds should be affected to the same extent. However, symptoms at different points in the system rarely become evident at the same time. This is likely the result of smaller vessels (i.e. the penile artery) being able to less well tolerate the same amount of plaque when compared with larger ones (i.e. the coronary artery). If true, ED will develop before CAD. We present a case in which ED developed after a coronary event yet before a coronary recurrence potentially representing a late marker of vascular progression. Reasons for this unusual sequence are discussed as they might still fit the ASH

    Tutor perception on personal and institutional preparedness for online teaching-learning during the COVID-19 crisis: The case of Ghanaian Colleges of Education

    Get PDF
    This paper looks at Ghanaian Colleges of Education tutors’ perception on the personal and institutional preparedness for online teaching-learning during the COVID-19 crisis. The study selected 24 tutors from 9 Colleges of Education (CoEs) in the Eastern and Greater Accra Regions. 7 CoEs are in Eastern while 2 are in Greater Accra. Using the convenience sampling technique, 24 tutors were selected as the accessible population. The research design used was the qualitative with a semi-structured interview conducted over the telephone because of social distancing. The data collected was analysed manually. The results indicate that only 33.3% of the respondents could teach confidently online, while 66.7% needed more training to confidently deliver lessons online. Furthermore, none of the 9 colleges had policies on online teaching even though each college had at least 16 policies regarding the good governance of the colleges. It is therefore recommended that tutors of CoEs should be given support in ICT and online skills and competencies through continuous training

    Bone health in children and youth with Cystic Fibrosis: a systematic review and meta-analysis of matched cohort studies

    Get PDF
    This is the author accepted manuscript. The final version is available from Elsevier via the DOI in this recordObjective To assess the evidence regarding the differences in areal bone mineral density (aBMD) between children and adolescents with cystic fibrosis (CF) compared with their healthy peers, based on data from longitudinal studies. Study design We searched MEDLINE, SPORTDiscus, the Cochrane Library, PEDro (Physiotherapy Evidence Database), and Embase databases. Observational studies addressing the change of aBMD in children with CF and healthy children and adolescents were eligible. The DerSimonian and Laird method was used to compute pooled estimates of effect sizes (ES) and 95% CIs for the change of whole body (WB), lumbar spine (LS), and femoral neck (FN) aBMD. Results Six studies with participants with CF and 26 studies with healthy participants were included in the systematic review and meta-analysis. For the analysis in children with CF, the pooled ES for the change of WB aBMD was 0.29 (95% CI –0.15 to 0.74), for the change of LS aBMD was 0.13 (95% CI –0.16 to 0.41), and for the change of FN aBMD was 0.09 (95% CI –0.39 to 0.57). For the analysis in healthy children, the pooled ES for the change of WB aBMD was 0.37 (95% CI 0.26-0.49), for the change of LS aBMD was 0.13 (95% CI –0.16 to 0.41), and for the change of FN aBMD was 0.52 (95% CI 0.19-0.85). Conclusions aBMD development might not differ between children and adolescents with CF receiving medical care compared with their healthy peers. Further longitudinal studies in a CF population during growth and development are required to confirm our findings

    Growth, Maturation, and Physical Fitness

    Get PDF
    This is the author accepted manuscript. The final version is available from Routledge via the DOI in this record.  This chapter outlines the methods to assess growth and maturation. Biological maturation varies with the biological system that is selected and comprises the assessment of sexual, morphological, dental, or skeletal maturation. The chapter describes how measures of physical fitness and performance are impacted by growth and maturation. It also outlines the methods used to examine body weight status and composition. The chapter examines laboratory-based testing protocols to determine and interpret aerobic and anaerobic fitness in children and adolescents. Although more commonly used in the research setting, laboratory-based measures of physical fitness in children and adolescents have typically focused on developing protocols to measure aerobic and anaerobic fitness. Three of the key parameters of aerobic fitness are: maximal oxygen uptake, blood lactate threshold, and oxygen cost of exercise. The chapter presents field-based testing batteries for measuring physical fitness in children and adolescents

    Biomarkers of cardiovascular risk across phenotypes of osteoarthritis

    Get PDF
    Abstract: Background: The objective of this study was to explore the associations between ultrasonographic and radiographic joint scores and levels of arterial CVD risk markers in patients with osteoarthritis (OA). Secondly, to compare the levels of arterial CVD risk markers between OA phenotypes and controls. Method: The “Musculoskeletal pain in Ullensaker” Study (MUST) invited residents of Ullensaker municipality with self-reported OA to a medical examination. OA was defined according to the American College of Rheumatology (ACR) criteria and phenotyped based on joint distribution. Joints of the hands, hips and knees were examined by ultrasonography and conventional radiography, and scored for osteosteophytes. Hands were also scored for inflammation by grey scale (GS) synovitis and power Doppler (PD) signal. Control populations were a cohort of inhabitants of Oslo (OCP), and for external validation, a UK community-based register (UKPC). Pulse pressure augmentation index (AIx) and pulse wave velocity (PWV) were measured using the Sphygmocor apparatus (Atcor®). Ankel-brachial index (ABI) was estimated in a subset of patients. In separate adjusted regression models we explored the associations between ultrasonography and radiograph joint scores and AIx, PWV and ABI. CVD risk markers were also compared between phenotypes of OA and controls in adjusted analyses. Results: Three hundred and sixty six persons with OA were included (mean age (range); 63.0 (42.0–75.0)), (females (%); 264 (72)). Of these, 155 (42.3%) had isolated hand OA, 111 (30.3%) had isolated lower limb OA and 100 (27.3%) had generalized OA. 108 persons were included in the OCP and 963 persons in the UKPC; (mean age (range); OCP: 57.2 (40.4–70.4), UKPC: 63.9 (40.0–75.0), females (%); OCP: 47 (43.5), UKPC: 543 (56.4%). Hand osteophytes were associated with AIx while GS and PD scores were not related to CVD risk markers. All OA phenotypes had higher levels of AIx compared to OCP in adjusted analyses. External validation against UKPC confirmed these findings. Conclusions: Hand osteophytes might be related to higher risk of CVD. People with OA had higher augmented central pressure compared to controls. Words 330

    Football for promotion of bone health across lifespan.

    Get PDF
    This is the author accepted manuscript. The final version is available from Routledge via the DOI in this record.The prevalence of osteoporosis and fragility fractures is expected to increase due to the increasing life expectancy of the population worldwide. Determinants of osteoporosis include the genetic predisposition and environmental factors, such as exercise and diet that can affect peak bone mass attainment. Peak bone mass is achieved between the second and third decade of life, with 80-90 % acquired by late adolescence followed by a decrease of approximately 1% annually from the fifth decade of life. Weight-bearing exercise has an important role on bone development and maintenance of skeletal bone mass due to the mechanical loads produced and the repetetive forces applied on the skeleton. Football includes a wide variety of intermittent high-intensity movements, which produce large ground reaction forces that can stimulate bone formation and skeletal adaptations. Cross-sectional, longitudinal and randomised controlled trials have been conducted to investigate the impact of football participation on skeletal bone health during developmental growth and in adulthood. Evidence indicates that football exercise can have positive effects on bone development and structure in both male and female children and adolescents. During adulthood football participation can maintain and improve bone health in untrained, healthy as well as middle-aged and older men and women including various clinical patient groups with evidence indicating structural, cellular and clinical relevant bone adaptations. The skeletal benefits are site-specific and adaptations are observed particularly at the skeletal regions stimulated by mechanical loads. Concluding this chapter is a focus on the scientific evidence indicating that football participation is an effective strategy to promote bone health during childhood, adolescence and in adulthood

    Normative equations for central augmentation index:Assessment of inter-population applicability and how it could be improved

    Get PDF
    Common reference values of arterial stiffness indices could be effective screening tool in detecting vascular phenotypes at risk. However, populations of the same ethnicity may differ in vascular phenotype due to different environmental pressure. We examined applicability of normative equations for central augmentation index (cAIx) derived from Danish population with low cardiovascular risk on the corresponding Croatian population from the Mediterranean area. Disagreement between measured and predicted cAIx was assessed by Bland-Altman analysis. Both, cAIx-age distribution and normative equation fitted on Croatian data were highly comparable to Danish low-risk sample. Contrarily, Bland-Altman analysis of cAIx disagreement revealed a curvilinear deviation from the line of full agreement indicating that the equations were not equally applicable across age ranges. Stratification of individual data into age decades eliminated curvilinearity in all but the 30–39 (men) and 40–49 (women) decades. In other decades, linear disagreement independent of age persisted indicating that cAIx determinants other than age were not envisaged/compensated for by proposed equations. Therefore, established normative equations are equally applicable to both Nordic and Mediterranean populations but are of limited use. If designed for narrower age ranges, the equations’ sensitivity in detecting vascular phenotypes at risk and applicability to different populations could be improved

    Methods for evaluating endothelial function: a position statement from the European Society of Cardiology Working Group on Peripheral Circulation

    Full text link
    The endothelium holds a pivotal role in cardiovascular health and disease. Assessment of its function was until recently limited to experimental designs due to its location. The advent of novel techniques has facilitated testing on a more detailed basis, with focus on distinct pathways. This review presents available in-vivo and ex-vivo methods for evaluating endothelial function with special focus on more recent ones. The diagnostic modalities covered include assessment of epicardial and microvascular coronary endothelial function, local vasodilation by venous occlusion plethysmography and flow-mediated dilatation, arterial pulse wave analysis and pulse amplitude tonometry, microvascular blood flow by laser Doppler flowmetry, biochemical markers and bioassays, measurement of endothelial-derived microparticles and progenitor cells, and glycocalyx measurements. Insights and practical information on the theoretical basis, methodological aspects, and clinical application in various disease states are discussed. The ability of these methods to detect endothelial dysfunction before overt cardiovascular disease manifests make them attractive clinical tools for prevention and rehabilitation

    The Role of Diet in the Cardiovascular Health of Childhood Cancer Survivors - A Systematic Review

    Get PDF
    This is the final version. Available on open access from MDPI via the DOI in this recordBackground: Childhood cancer survivors (CCSs) face an increased risk of cardiovascular disease (CVD). This systematic review aims to provide the first synthesis of observational and interventional studies on the relationship between diet and cardiovascular health in CCSs. Methods: A comprehensive search was conducted for studies published between 1990 and July 2023 in PubMed, MEDLINE, CINAHL, Child Development & Adolescent Studies, and Cochrane Library. Eligible studies included observational and interventional studies examining the associations or effects of dietary factors on CVD incidence, cardiac dysfunction, or CVD risk factors in CCSs diagnosed before age 25 years. Results: Ten studies met the inclusion criteria (nine observational and one interventional). Collectively, they comprised 3485 CCSs (male, 1734; female, 1751). The outcomes examined across observational studies included characteristics of obesity, diabetes biomarkers, hypertension indicators, dyslipidaemia biomarkers, and metabolic syndrome. The evidence suggested that greater adherence to healthy diets was associated with lower body mass index, blood pressure, glucose, and triglycerides and higher high-density lipoprotein cholesterol. The 12-week lifestyle intervention study in childhood leukaemia survivors found no impact on obesity indicators. Conclusion: The review results indicate the potentially protective effects of healthy diets. However, the available research remains preliminary and limited, underscoring the need for more rigorous, adequately powered studies.China Scholarship CouncilStiftung für krebskranke Kinder, Regio BasiliensisUniversity of Basel Research Fund for Excellent Junior Researcher

    Primary care professionals’ experiences during the first wave of the COVID-19 pandemic in Greece: a qualitative study

    Get PDF
    Background: The coronavirus outbreak (COVID-19) tested health care systems worldwide. This qualitative study aimed to explore and understand the experiences, beliefs and concerns of Primary Care Professionals (PCPs) regarding the preparedness and response of primary care to the first wave of the pandemic in Greece, a country where a public structured primary care system has been developing. Methods: We conducted semi-structured telephone interviews with 33 PCPs (General Practitioners, community General Internal Medicine Specialists, community Paediatricians and nurses) recruited from all regions of Greece after the first wave of the pandemic (June 2020). Interviews were transcribed verbatim, data were anonymised and analysed. Thematic analysis was applied developing a conceptual framework. Results: Four main themes were identified: a) Primary care unit adaptation and issues faced during the pandemic; b) Management of suspected COVID-19 cases; c) Management of non-suspected cases; d) Consequences of the pandemic. In the first phase of the pandemic, remote management of suspected cases and their referral to the hospital were preferred as a result of a shortage of personal protective equipment and inaccessibility to coronavirus testing in primary care. Due to the discontinuation of regular medical services and the limited in-person contact between doctors and patients, chronic disease management and prevention programmes were left behind. Social and emotional consequences of the pandemic, such as workplace stigma, isolation and social seclusion, deriving from fear of viral transmission, as well as burnout symptoms and exhaustion were commonly experienced among PCPs. Positive consequences of the pandemic were considered to be the recognition of the importance of an empowered public healthcare system by citizens and the valuable insight, knowledge and experience professionals gained in times of crisis. Conclusions: Primary care has a key role to play during and after the pandemic by using its information infrastructure to identify at-risk groups, detect new cases of COVID-19, provide care according to needs, and carry out vaccination programmes. Central coordination and empowerment of primary care will increase its effectiveness, via public awareness, holistic patient management, and unburdening of hospitals
    corecore