Skin dermatoses in the returning traveller; a practical guide.

Skin problems are common in returning travellers, despite the fact that vaccination, insect repellent techniques, adequate clothing and footwear are all ways to prevent skin disease. When travelling to unusual areas, the traveller can still expect to pick up diseases that are common across the world such as lice, scabies, staphylococcal or streptococcal infections. What can differ are the different arthropods and the diseases they can spread. Given the plethora of dermatoses in returning travellers, a methodological approach is necessary. We attempted to do so by creating a practical guide which includes a diagnostic flowchart alongside a world map presenting common skin problems by continent. Additional information regarding possible investigations along with tables presenting common infectious skin diseases and their corresponding presentations were also included in our study. Our aim is to help clinicians approach skin dermatosis in returned from holidays patients, acknowledging the diagnostic difficulties that this might entail.

Efficient triaging of advice and guidance referrals using teledermatology via the UK National Health Service e-Referral service platform: reporting positive outcomes from the COVID era.

BACKGROUND: Substantial increases in the implementation and use of dermatology advice and guidance (A&G) services has been a legacy of the COVID pandemic. OBJECTIVES: To evaluate the impact that a 45-month period of A&G use had on the health service outcomes in a university teaching hospital dermatology department. METHODS: A&G data for June in 2019, 2020, 2021 and 2022 were retrospectively analysed. Areas analysed included: total number of A&G requests; number of requests converted to referrals; percentage of discharges at first attendance; and referral-to-treatment (RTT) performance (defined as percentage of referrals seen by 18 weeks). RESULTS: A&G requests increased over the study period, from 45 requests in June 2019 to 1384 in June 2021. Increased request numbers were because of the COVID-19 pandemic, and then a subsequent change to the referral pathway. In January 2021, A&G became the obligatory referral route for all routine referrals to our department. The percentage of A&G requests converted to referral were 22.4%, 46.4%, 43.4% and 52.2% in June 2019, 2020, 2021 and 2022, respectively. Between 2019 and 2022 our discharges at first attendance decreased from 36.7% to 29.0%. RTT performance remained consistently above the national average; local RTT performances were 95.2% (2543/2671), 59.8% (782/1308), 90.1% (1697/1884) and 87.9% (1660/1888), in June 2019, 2020, 2021 and 2022, respectively, which compared favourably against RTT figures for England (90.2%, 56.5%, 78.2% and 65.1%). CONCLUSIONS: We highlight to other NHS dermatology departments the positive impact A&G triaging can have on outcomes, as observed for our service, reducing our discharges at first attendance and maintaining an RTT performance above the national average.

Evaluation of mitral regurgitation by cardiac magnetic resonance and transthoracic echocardiography: a systematic review and meta-analysis.

Transthoracic echocardiography (TTE) and Cardiac Magnetic Resonance (CMR) have complementary roles in the severity grading of mitral regurgitation (MR). Our objective was to systematically review the correlation of MR severity as assessed by TTE and CMR. We searched MEDLINE and Cochrane Library for original series published between January 1st, 2000 and March 23rd, 2020. We used Cohen's kappa coefficient to measure agreement between modalities. We plotted a hierarchical summary receiver operator characteristic (HSROC) curve and estimated the area under the curve (AUC) to assess the concordance between the two imaging modalities for the detection of severe MR. We identified 858 studies, of which 65 underwent full-text assessment and 8 were included in the meta-analysis. A total of 718 patients were included (425 males, 59%) in the final analysis. There was significant heterogeneity in the methods used and considerable variation in kappa coefficient, ranging from 0.10 to 0.48. Seven out of eight studies provided the necessary data to plot HSROC curves and calculate the AUC. The AUC for detecting severe MR was 0.83 (95% CI 0.80 to 0.86), whereas the AUC for detecting moderate to severe MR was 0.83 (95% CI 0.79 to 0.86). The agreement between TTE and CMR in MR severity evaluation is modest across the entire spectrum of severity grading. However, when focusing on patients with at least moderate MR the concordance between TTE and CMR is very good. Further prospective studies comparing hard clinical endpoints based on the CMR and TTE assessment of MR severity are needed.

Association between childhood asthma and history of assisted reproduction techniques: a systematic review and meta-analysis.

Genetic and environmental factors during early development may influence lung growth and impact lung function. We performed a meta-analysis of epidemiological studies examining the association between conception history of assisted reproduction techniques (ART) and childhood asthma. We searched PubMed and Embase up to November 2020 for relevant observational studies and synthesized data data under a fixed or random effects model as appropriate. Heterogeneity was assessed using the I2 metric. We identified 13 individual studies including 3,226,386 participants. We did not observe a statistically significant association between ART and physician-diagnosed asthma (n = 9, random OR 1.16; 95% CI 0.94-1.43; I2 61%). We observed a statistically significant association between ART and prescription of asthma medications (n = 6, fixed OR 1.27; 95% CI 1.23-1.32; I2 0%). Wheezing was also associated with ART (n = 4, fixed OR 1.71; 95% CI 1.08-2.72; I2 0%). When we combined studies using any asthma definition, a statistically significant association was observed (random OR 1.19; 95% CI 1.05-1.34; I2 80%).Conclusion: The available observational evidence suggests that the risk of asthma is higher among children born after ART. The mechanism and potential sources of bias behind this association are under scrutiny, and further work is needed to establish causality. What is Known: • "Positive" epidemiological signals for the association between assisted reproduction techniques and asthma stemming from large studies were not replicated by subsequent research. • Any available research synthesis effort so far bears no quantitative aspect. What is New: • The available observational evidence suggests that the risk of asthma is higher among children born after ART. • The mechanism and potential sources of bias behind this association are under scrutiny.

Education protects against coronary heart disease and stroke independently of cognitive function: evidence from Mendelian randomization.

BACKGROUND: There is evidence that education protects against cardiovascular disease. However, it is not known whether such an effect is independent of cognition. METHODS: We performed two-sample Mendelian randomization (MR) analyses to investigate the effect of education and cognition, respectively, on risk of CHD and ischaemic stroke. Additionally, we used multivariable MR to adjust for the effects of cognition and education in the respective analyses to measure the effects of these traits independently of each other. RESULTS: In unadjusted MR, there was evidence that education is causally associated with both CHD and stroke risk [CHD: odds ratio (OR) 0.65 per 1-standard deviation (SD; 3.6 years) increase in education; 95% confidence interval (CI) 0.61-0.70, stroke: OR 0.77; 95% CI 0.69-0.86]. This effect persisted after adjusting for cognition in multivariable MR (CHD: OR 0.76; 95% CI 0.65-0.89, stroke OR 0.74; 95% CI 0.59-0.92). Cognition had an apparent effect on CHD risk in unadjusted MR (OR per 1-SD increase 0.80; 95% CI 0.74-0.85), however after adjusting for education this was no longer observed (OR 1.03; 95% CI 0.86-1.25). Cognition did not have any notable effect on the risk of developing ischaemic stroke, with (OR 0.97; 95% CI 0.87-1.08) or without adjustment for education (OR 1.04; 95% CI 0.79-1.36). CONCLUSIONS: This study provides evidence to support that education protects against CHD and ischaemic stroke risk independently of cognition, but does not provide evidence to support that cognition protects against CHD and stroke risk independently of education. These findings could have implications for education and health policy.

Genetically Determined Uric Acid and the Risk of Cardiovascular and Neurovascular Diseases: A Mendelian Randomization Study of Outcomes Investigated in Randomized Trials.

Background Higher serum uric acid levels are associated with cardiovascular and neurovascular disease, but whether these relationships are causal is not known. We applied Mendelian randomization approaches to assess the association between genetically determined uric acid levels and outcomes under study in large clinical trials. Methods and Results We used 28 genetic variants related to serum uric acid as instruments to perform a range of 2-sample Mendelian randomization methods. Our analysis had statistical power to detect clinically relevant effects of genetically determined serum uric acid levels on the considered clinical outcomes; cognitive function, Alzheimer disease, coronary heart disease, myocardial infarction, systolic blood pressure, and stroke. There was some suggestive evidence for an association between higher genetically determined serum uric acid and cognitive function. There was also some suggestive evidence of a relationship between coronary heart disease, systolic blood pressure, and the serum uric acid genetic instruments, but likely related to genetic pleiotropy. Overall, there was no consistent evidence of a clinically relevant effect of genetically determined serum uric acid on any of the considered outcomes. Conclusions This Mendelian randomization study does not support a clinically relevant causal effect of genetically determined serum urate on a range of cardiovascular and neurovascular outcomes. The weak association of genetically determined serum urate with coronary heart disease and systolic blood pressure may be because of pleiotropic effects. If urate lowering drugs such as allopurinol are found to affect these outcomes in clinical trials, then the effects may be mediated through urate independent mechanisms.