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The present study examines four-year-old children's everyday understandings of illness causality. Research into young children's conceptualisation of illness has led to different expectations of children's comprehension and ongoing debate regarding the nature of children's knowledge. Awareness of preschoolers' spontaneous views of illness causality, rather than explanations restricted by predetermined response categories, is likely to assist practitioners to provide more appropriate interventions for young children. Adopting a socio-constructivist perspective of children's learning and development, and using a narrative methodology, we interviewed five preschoolers regarding their views of illness causality. As part of the interview process children were invited to construct their own storybooks about illness using photographs of children experiencing illness and a variety of art materials. Analysis of young children's narrative accounts revealed two major threads regarding children's illness causality constructions: (1) “behaviour-based explanations for illness”, and (2) “illness prevention messages and behavioural rules”. Findings suggest that four-year-olds' understanding may be more sophisticated than traditionally maintained, and that the illness prevention messages and behavioural rules within sociocultural contexts may significantly influence children's conceptualisation of illness causality. [ABSTRACT FROM AUTHOR]

The present study examines four-year-old children's everyday understandings of illness causality. Research into young children's conceptualisation of illness has led to different expectations of children's comprehension and ongoing debate regarding the nature of children's knowledge. Awareness of preschoolers' spontaneous views of illness causality, rather than explanations restricted by predetermined response categories, is likely to assist practitioners to provide more appropriate interventions for young children. Adopting a socio-constructivist perspective of children's learning and development, and using a narrative methodology, we interviewed five preschoolers regarding their views of illness causality. As part of the interview process children were invited to construct their own storybooks about illness using photographs of children experiencing illness and a variety of art materials. Analysis of young children's narrative accounts revealed two major threads regarding children's illness causality constructions: (1) “behaviour-based explanations for illness”, and (2) “illness prevention messages and behavioural rules”. Findings suggest that four-year-olds' understanding may be more sophisticated than traditionally maintained, and that the illness prevention messages and behavioural rules within sociocultural contexts may significantly influence children's conceptualisation of illness causality. [ABSTRACT FROM PUBLISHER]

In this article we highlight the ways in which young children draw on their family contexts in their meaning making about the causes of illness. Studies of young children’s understanding of illness causality have largely focused on the nature of children’s knowledge rather than the ways in which children acquire their knowledge. Seeking to advance a socio-constructivist understanding of young children’s conceptualization of illness causality, we interviewed five four-year-old children and their family members. Analysis of participants’ narrative accounts suggests that young children’s illness causality constructions are significantly influenced by the particular illness experiences, illness prevention messages and behavioural rules within families. By identifying and acknowledging young children’s meaning making within the socio-cultural context of the family, health practitioners may be better placed to develop effective health education programmes and provide enhanced psychosocial support for young children and their families. [ABSTRACT FROM PUBLISHER]

In this paper we describe a method for exploring young children's views of illness causality in social context. Studies of children's conceptualisation of illness have predominantly focused on the nature of children's knowledge rather than locating that knowledge within socio-cultural contexts. Adopting a socio-constructivist perspective we sought to identify the ways in which young children's illness causality concepts are embedded in the socio-cultural context of the family. Interviews were undertaken with four-year-old children, their parents/guardians, sibling/s aged five to nine years and two other family members. To aid the elicitation of young children's narrative accounts of illness causality, children were invited to construct a storybook about ‘getting sick’ utilising art materials and photographs of children experiencing illness. In this paper we describe this method, discuss its utility in eliciting illness narratives from pre-school children and provide suggestions for the use of this method in future research. [ABSTRACT FROM PUBLISHER]

Wound bed assessment and optimum local wound care are essential to facilitate the wound healing process. The presence of devitalized tissue, for instance necrotic tissue or slough, is common in hard-to-heal wounds and acts as a barrier to healing. There are several debridement options available to the practitioner with the choice of wound debridement technique being made following a holistic assessment of the patient and the wound. The method of debridement should be discussed with the patient and family where appropriate and consent to treatment obtained prior to the procedure being undertaken. [ABSTRACT FROM AUTHOR]

The article discusses the use of honey, silver and iodine for the treatment of infected wounds and the evidence base for the use of antimicrobial agents in wound management. It cites factors that contribute to wound chronicity. It explores the use of topical antimicrobial dressings as an alternative to systemic therapy. It notes the ideal properties of antimicrobial dressings, as well as some of the commonly available antimicrobials.

Reports the fabrication and characterization of micromachined reduced-height air-filled rectangular waveguide components. Construction of structures with heights up to 100 micrometer in a repeatable manner; Indication of the waveguide S-parameter measurements at frequencies between 75 to 110 gigahertz; Utilization of a vector network analyzer.

Presents information on a study which investigated the advantages of using an active tuner to vary the source impedance in a microwave noise parameter measurement system. Description of the active tuner design; Uncertainty produced by excess noise of active tuner; Synthesis of variable impedances; Conclusions.

Describes novel monolithic-microwave integrated-circuit (MMIC) source-impedance tuners for use in on-wafer noise-parameter measurement systems. MMIC tuner designs; Insertion and return loss of tuners in thru state; Tuner noise output.

Background: Atrial Fibrillation (AF) is the most common arrhythmia globally in adults and is associated with an increased risk of stroke, morbidity and mortality. There is growing evidence that AF is associated with mild cognitive impairment (MCI). The incidence of both conditions increase with age and both conditions share important risk factors. Objectives: This study aimed to examine the relationship between MCI and AF. The aims of this scoping review is 1) To describe the prevalence of MCI in patients with AF without prior stroke 2) To investigate the pathogenetic mechanisms linking MCI and AF and 3) To examine current screening tools employed to identify MCI. Methods: This scoping review was carried out in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping reviews (PRISMA-ScR). Results: The scoping review included 40 studies. Across the included articles, the mean prevalence of MCI in patients with AF was 36.74%. The main proposed pathologic mechanisms linking MCI and AF were white matter lesions, cardiovascular risk factors, silent cerebral infarction and cerebral hypoperfusion. The most common tools used in these studies to identify MCI were a battery of cognitive tests and the MoCA test. [ABSTRACT FROM AUTHOR]

Wound bed assessment and optimum local wound care are essential to facilitate the wound healing process. The presence of devitalized tissue, for instance necrotic tissue or slough, is common in hard-to-heal wounds and acts as a barrier to healing. There are several debridement options available to the practitioner with the choice of wound debridement technique being made following a holistic assessment of the patient and the wound. The method of debridement should be discussed with the patient and family where appropriate and consent to treatment obtained prior to the procedure being undertaken. [ABSTRACT FROM AUTHOR]

The ability to improve peripheral neural transmission would have significant therapeutic potential in medicine. A technology of this kind could be used to restore and/or enhance sensory function in individuals with depressed sensory function, such as older adults or patients with peripheral neuropathies. The goal of this study was to investigate if a new paradigm of subsensory electrical noise stimulation enhances somatosensory function. Vibration (50 Hz) was applied with a Neurothesiometer to the plantar aspect of the foot in the presence or absence of subsensory electrical noise (1/f type). The noise was applied at a proximal site, on a defined region of the tibial nerve path above the ankle. Vibration perception thresholds (VPT) of younger adults were measured in control and experimental conditions, in the absence or presence of noise respectively. An improvement of ~16% in VPT was found in the presence of noise. These are the first data to demonstrate that modulation of axonal transmission with externally applied electrical noise improves perception of tactile stimuli in humans. [ABSTRACT FROM AUTHOR]

Background: Atrial Fibrillation (AF) is the most common tachyarrhythmia and is associated with increased risk of stroke, morbidity and mortality. AF is responsible for up to a quarter of all strokes and is often asymptomatic until a stroke occurs. Screening for AF is a valuable approach to reduce the burden of stroke in the population. Objectives:The motivation for this review was to synthesise and appraise the evidence for screening for AF in the community. The aims of this scoping review are 1). To describe the prevalence of newly diagnosed AF in screening programmes 2). Identify which techniques/ tools are employed for AF screening 3). To describe the setting and personnel involved in screening for AF. Eligibility Criteria: All forms of AF screening in adults (=18 years) in primary and community care settings. Methods: This review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping reviews (PRISMA-ScR). Results:Fifty-nine papers were included; most were cross-sectional studies (n=41) and RCTs (n=7). Prevalence of AF ranged from 0-34.5%. Screening tools and techniques included the 12-lead ECG (n=33), the 1-lead ECG smartphone based Alivecor® (n=14) and pulse palpation (n=12). Studies were undertaken in community settings (n=30) or in urban/rural primary care (n=28). Personnel collecting research data were in the main members of the research team (n=31), GPs (n=16), practice nurses (n=10), participants (n=8) and pharmacists (n=4). Conclusion: Prevalence of AF increased with advancing age. AF screening should target individuals at greatest risk of the condition including older adults =65 years of age. Emerging novel technologies may increase the accessibility of AF screening in community and home settings. There is a need for high quality research to investigate AF prevalence and establish accuracy and validity for traditional versus novel screening tools used to screen for AF. [ABSTRACT FROM AUTHOR]

We set out to evaluate quality of reporting of data related to external validity from randomized controlled trials (RCTs) assessing treatment interventions for active venous leg ulcers. Using a systematic review study design, we identified 144 full‐text RCTs of treatment interventions, where the wound was assessed and published in English from 1998 to 2018. We found that the median study sample size was 75.5. Weighted mean wound size was 13.22 cm2 and weighted mean wound duration was 22.20 months. Forty‐six (32%) reported numbers screened for eligibility and 27 (19%) reported the number who declined to participate; 19 (13%) reported on patient ethnicity; 60 (42%) reported comorbidities; and 5 (4%) reported current medication use. When reported, 60/102 (59%) excluded patients with an ankle‐brachial pressure index <0.8; 68/135 (50%) were conducted in Europe, 6/135 (4%) in Asia, and 74/104 (71%) were conducted in outpatient facilities; 3 (2%) reported socioeconomic factors and 88 (61%) reported on adverse events. We concluded that there is inadequate reporting of data related to external validity in reports of RCTs assessing venous leg ulcers treatment interventions. Significant variability exists in the ankle‐brachial pressure index cutoff point for inclusion or exclusion, making generalizability difficult to assess. [ABSTRACT FROM AUTHOR]

Background: Randomised controlled trials are generally regarded as the 'gold standard' experimental design to determine the effectiveness of an intervention. Unfortunately, many trials either fail to recruit sufficient numbers of participants, or recruitment takes longer than anticipated. The current embedded trial evaluates the effectiveness of optimised patient information sheets on recruitment of participants in a falls prevention trial.Methods: A three-arm, embedded randomised methodology trial was conducted within the National Institute for Health Research-funded REducing Falls with ORthoses and a Multifaceted podiatry intervention (REFORM) cohort randomised controlled trial. Routine National Health Service podiatry patients over the age of 65 were randomised to receive either the control patient information sheet (PIS) for the host trial or one of two optimised versions, a bespoke user-tested PIS or a template-developed PIS. The primary outcome was the proportion of patients in each group who went on to be randomised to the host trial.Results: Six thousand and nine hundred patients were randomised 1:1:1 into the embedded trial. A total of 193 (2.8%) went on to be randomised into the main REFORM trial (control n = 62, template-developed n = 68; bespoke user-tested n = 63). Information sheet allocation did not improve recruitment to the trial (odds ratios for the three pairwise comparisons: template vs control 1.10 (95% CI 0.77-1.56, p = 0.60); user-tested vs control 1.01 (95% CI 0.71-1.45, p = 0.94); and user-tested vs template 0.92 (95% CI 0.65-1.31, p = 0.65)).Conclusions: This embedded methodology trial has demonstrated limited evidence as to the benefit of using optimised information materials on recruitment and retention rates in the REFORM study.Trial Registration: International Standard Randomised Controlled Trials Number registry, ISRCTN68240461 . Registered on 01 July 2011. [ABSTRACT FROM AUTHOR]

Background: Falls are a major cause of morbidity among older people. A multifaceted podiatry intervention may reduce the risk of falling. This study evaluated such an intervention. Design: Pragmatic cohort randomised controlled trial in England and Ireland. 1010 participants were randomised (493 to the Intervention group and 517 to Usual Care) to either: a podiatry intervention, including foot and ankle exercises, foot orthoses and, if required, new footwear, and a falls prevention leaflet or usual podiatry treatment plus a falls prevention leaflet. The primary outcome was the incidence rate of self-reported falls per participant in the 12 months following randomisation. Secondary outcomes included: proportion of fallers and those reporting multiple falls, time to first fall, fear of falling, Frenchay Activities Index, Geriatric Depression Scale, foot pain, health related quality of life, and cost-effectiveness. Results: In the primary analysis were 484 (98.2%) intervention and 507 (98.1%) control participants. There was a small, non statistically significant reduction in the incidence rate of falls in the intervention group (adjusted incidence rate ratio 0.88, 95% CI 0.73 to 1.05, p = 0.16). The proportion of participants experiencing a fall was lower (49.7 vs 54.9%, adjusted odds ratio 0.78, 95% CI 0.60 to 1.00, p = 0.05) as was the proportion experiencing two or more falls (27.6% vs 34.6%, adjusted odds ratio 0.69, 95% CI 0.52 to 0.90, p = 0.01). There was an increase (p = 0.02) in foot pain for the intervention group. There were no statistically significant differences in other outcomes. The intervention was more costly but marginally more beneficial in terms of health-related quality of life (mean quality adjusted life year (QALY) difference 0.0129, 95% CI -0.0050 to 0.0314) and had a 65% probability of being cost-effective at a threshold of £30,000 per QALY gained. Conclusion: There was a small reduction in falls. The intervention may be cost-effective. Trial Registration: ISRCTN ISRCTN68240461 [ABSTRACT FROM AUTHOR]

Loss of tactile sensory function is common with aging and can lead to numbness and difficulty with balance and gait. In previous work we found that subsensory electrical noise stimulation (SENS) applied to the tibial nerve improved tactile perception in the soles of the feet of healthy adults. In this work we aimed to determine if SENS remained effective in an older adult population with significant levels of sensory loss. Older adult subjects ( N = 8, female = 4, aged 65–80) had SENS applied via surface electrodes placed proximally to the medial and lateral malleoli. Vibration perception thresholds (VPTs) were assessed in six conditions, two control conditions (no SENS) and four SENS conditions (zero mean ± 15 µA, 30 µA, 45 µA and 60 µA SD). VPT was assessed at three sites on the plantar aspect of the foot. Vibration perception was significantly improved in the presence of ± 30 µA SENS and by 16.2 ± 2.4% (mean ± s.e.m.) when optimised for each subject. The improvement in perception was similar across all VPT test sites. [ABSTRACT FROM AUTHOR]

Background: Trials using inadequate levels of blinding may report larger effect sizes than blinded studies. It has been suggested that blinded outcome assessment in open trials may in some cases be undertaken by assessments of photographs. The aim of this paper is to explore the effect of using different methods to assess the primary outcome in the EVerT (Effective Verruca Treatments) trial. It also aims to give an overview of the experiences of using digital photographs within the trial. Methods: We undertook a secondary analysis to explore the effect of using three different methods to assess the primary outcome in the EVerT trial: assessment of digital photographs by blinded healthcare professionals; blinded healthcare professional assessment at the recruiting site and patient self-report. The verruca clearance rates were calculated using the three different methods of assessment. A Cohen's kappa measure of inter-rater agreement was used to assess the agreement between the methods. We also investigated the experiences of healthcare professionals using digital photographs within the trial. Results: Digital photographs for 189 out of 240 (79 %) patients in the trial were received for outcome assessment. Of the 189 photographs, 30 (16 %) were uninterpretable. The overall verruca clearance rates were 21 % (43/202,) using the unblinded patient self-reported outcome, 6 % (9/159,) using blinded assessment of digital photographs and 14 % (30/210,) using blinded outcome assessment at the site. Conclusions: Despite differences in the clearance rates found using different methods of outcome assessment, this did not change the original conclusion of the trial, that there is no evidence of a difference in effectiveness between cryotherapy and salicylic acid. Future trials using digital photographs should consider individual training needs at sites and have a backup method of assessment agreed a priori. Trial registration: ISRCTN Registry ISRCTN18994246 [ABSTRACT FROM AUTHOR]

Background: Randomised controlled trials are widely accepted as the gold standard method to evaluate medical interventions, but they are still open to bias. One such bias is the effect of patient's preference on outcome measures. The aims of this study were to examine whether patients' treatment preference affected clearance of plantar warts and explore whether there were any associations between patients' treatment preference and baseline variables in the EverT trial. Methods: Two hundred and forty patients were recruited from University podiatry schools, NHS podiatry clinics and primary care. Patients were aged 12 years and over and had at least one plantar wart which was suitable for treatment with salicylic acid and cryotherapy. Patients were asked their treatment preference prior to randomisation. The Kruskal-Wallis test was performed to test the association between preference group and continuous baseline variables. The Fisher's exact test was performed to test the association between preference group and categorical baseline variables. A logistic regression analysis was undertaken with verruca clearance (yes or no) as the dependent variable and treatment, age, type of verruca, previous treatment, treatment preference as independent variables. Two analyses were undertaken, one using the health professional reported outcome and one using the patient's self reported outcomes. Data on whether the patient found it necessary to stop the treatment to which they had been allocated and whether they started another treatment were summarised by treatment group. Results: Pre-randomisation preferences were: 10% for salicylic acid; 42% for cryotherapy and 48% no treatment preference. There was no evidence of an association between treatment preference group and either patient (p=0.95) or healthcare professional (p=0.46) reported verruca clearance rates. There was no evidence of an association between preference group and any of the baseline variables except gender, with more females expressing a preference for salicylic acid (p=0.004). There was no evidence that the number of times salicylic acid was applied was different between the preference groups at one week (p=0.89) or at three weeks (p=0.24). Similarly, for the number of clinic visits for cryotherapy (p=0.71) Conclusions: This secondary analysis showed no evidence to suggest that patients' baseline preferences affected verruca clearance rates or adherence with the treatment. Trial registration: Current Controlled Trials ISRCTN18994246 and National Research Register N0484189151 [ABSTRACT FROM AUTHOR]