Vitiligo prevalence and quality of life among adults in Europe, Japan and the USA.

BACKGROUND: Vitiligo, an autoimmune disorder characterised by skin depigmentation, is associated with reduced quality of life (QoL). Vitiligo may be under-reported, in part because of misconceptions that it is a cosmetic disease. OBJECTIVES: This survey sought to characterise vitiligo prevalence and explore the relationship between sociodemographic and clinical characteristics with QoL in a population-based, multinational study. METHODS: Participants aged ≥18 years were recruited via an online panel in Europe, Japan and the USA to answer questions regarding skin disorders they may have experienced. Those reporting vitiligo (diagnosed or undiagnosed) or vitiligo signs (experiencing loss of skin colour but unaware of vitiligo and not diagnosed) were included in the analyses of vitiligo prevalence. Participants who self-reported physician-diagnosed vitiligo were given a broader survey to characterise disease progression, management and QoL (as measured with the Vitiligo-specific QoL [VitiQoL] instrument). RESULTS: The total estimated vitiligo prevalence among 35 694 survey participants (Europe, n = 18 785; USA, n = 8517; Japan, n = 8392) was 1.3% (diagnosed, 0.6%; undiagnosed, 0.4%; vitiligo signs, 0.3%). Among 219 patients formally diagnosed with vitiligo (Europe, n = 150; USA, n = 48; Japan, n = 21), total VitiQoL scores were associated with age (P = 0.00017), disease extent (P < 0.0001), disease progression (P < 0.0001), disease management (P < 0.0001) and time since diagnosis (P = 0.0015). Behaviour scores varied based on skin phototype (P = 0.024) and ethnicity (P = 0.048). Higher total VitiQoL scores were reported in patients with head lesions (P = 0.027) and those with head and hand and/or wrist lesions (P = 0.018). Substantial high concern (rated 8-10 on an 11-point Likert scale) for lesions was found across all body areas and varied with geographical region. CONCLUSIONS: The vitiligo prevalence rate may be higher than previously reported, with a substantial proportion attributed to people who have not received a formal diagnosis. Among formally diagnosed patients with vitiligo, QoL was most severely impacted by more progressive and higher extent of disease.

International Initiative for Outcomes (INFO) for vitiligo: workshops with patients with vitiligo on repigmentation.

BACKGROUND: There is no cure or firm clinical recommendations for the treatment of vitiligo. One of the main issues is the heterogeneity of outcome measures used in randomized controlled trials for vitiligo. OBJECTIVES: To define successful repigmentation from the patients' point of view and to propose how and when repigmentation should be evaluated in clinical trials in vitiligo. METHODS: We conducted three workshops with patients with vitiligo and their parents or caregivers. Workshop 1 was held at World Vitiligo Day (Detroit, MI), workshop 2 at the University of Texas Southwestern Medical Center and workshop 3 at the Vitiligo and Pigmentation Institute of Southern California, University of California. RESULTS: Seventy-three participants were recruited. Consensus on the following questions was achieved unanimously: (i) the definition of 'successful repigmentation' was 80-100% of repigmentation of a target lesion and (ii) both an objective and a subjective scale to measure repigmentation should be used. CONCLUSIONS: This was the largest patients' outcomes workshop. We followed the guidance from the CSG-COUSIN and the Vitiligo Global Issues Consensus Group. Our recommendations to use percentage of repigmentation quartiles (0-25%, 26-50%, 51-79%, 80-100%) and the Vitiligo Noticeability Scale are based on the best available current evidence. A limitation of the research is that the workshops were conducted only in the U.S.A., due to pre-existing organisational support and the availability of funding.

Expression of the T cell-specific adapter protein in human tissues.

T cell-specific adapter protein (TSAd) encoded by the SH2D2A gene is expressed in activated T cells, NK cells and endothelial cells, but its tissue expression has not yet been mapped. Here, we have defined the specificity of two commercially available anti-TSAd monoclonal reagents using peptide arrays. We found them to bind separate epitopes in the C-terminal part of TSAd. We then used immunohistochemistry to examine TSAd expression in various human lymphoid and non-lymphoid tissues. Immunostaining of adjacent tissue sections revealed that a substantial fraction of CD3-positive cells in normal lymphoid and non-lymphoid tissues expressed TSAd. In particular, essentially all intra-epithelial T cells appeared to coexpress TSAd. In addition, TSAd expression was observed in endothelial cells of dermal microvessels, while it was not detected in endothelial cells of the other tested tissues. This work provides insight into the expression pattern of TSAd in various healthy human tissues.

One year of burns at a role 3 Medical Treatment Facility in Afghanistan.

OBJECTIVES: Historically, burns have formed a significant proportion of the casualties of war. The management of burns in recent conflict has been found to be a resource-heavy undertaking, though its impact on both personnel and resources in current conflicts is unclear. A case analysis has been carried out in order to quantify the logistical impact of the management of burns on Role 3 Medical Treatment Facility (MTF) infrastructure and to examine if and how the cause and management of burns have evolved in early 21st century conflict. METHODS: All casualties treated for burns at a Role 3 MTF over one calendar year were identified and scanned copies of their notes obtained from the UK Joint Theatre Trauma Registry and retrospectively analysed. RESULTS: 88 of the 1461 (6.0%) trauma patients presenting to the Role 3 MTF over the year were treated for burns of whom 52.3% were combat troops and 45.4% civilians. Half of the burns were caused by non-conflict related mechanisms; the two commonest mechanisms were flame burns in 38/88 mostly non-conflict related cases and blast in 30/88 cases most of which were conflict related. CONCLUSIONS: The management of burns at war is a complex process. It is further confounded by the management of civilians with non-conflict related burns, which places a predictable strain on Role 3 MTF resources: theatre time, nursing time, dressing resources and bed space. This must be planned for in current and future deployed operations.

Biochemical composition of sheep milk of different breeds during the summer lactation period.

The article presents the results of the study of biochemical composition of sheep milk in the summer lactation period for 4 sheep breeds. According to research results, 18 amino acids were found in sheep milk. During the summer lactation period, the amount of polyunsaturated fatty acids, both the Ordabasy breed and the South Kazakh merino exhibit higher levels (ranging from 6349 to 6989) compared to the Kazakh fine-fleeced and meat Merino breeds (ranging from 5835 to 5500). When analyzing sheep milk, a tendency towards a higher content of vitamin A (59.91 µg/100 g) and B6 (73.0 µg/100 g) was noted. The highest calcium content was found in the milk of the Kazakh fine-fleeced sheep, while the lowest was observed in the South Kazakh merino breed. Better milk productivity, along with increased fat and protein content, has been noted in sheep of the Ordabasy and South Kazakh merino breeds.

Impact on quality of life following inguinal hernia repair under local anaesthetic in a primary care setting.

PURPOSE: Inguinal hernia repair remains one of the most common elective general surgical procedures. Previous studies have suggested high rates of chronic pain afterwards. The aim of this study was to evaluate changes in quality of life after local anaesthetic (LA) inguinal hernia surgery performed in a primary care setting. METHODS: Quality of life (QoL) was measured in all patients both pre-operatively and at 6-months post-operatively using the European Hernia Society Scoring tool. Data was analysed by tertile grouping according to initial symptom score. RESULTS: 497 patients filled out pre-operative QoL forms between June 2020 and May 2022. Post-operative QoL scores were received from 179 patients (164 male (91.6%)). Median pre-operative score was 33 (IQR 20-48). Median post-operative score was 4 (IQR 1-11). Mean improvement in QoL score was 27.8. Nine patients had a worse score at 6-months compared to pre-op (5%). When the data was analysed by pre-op QoL group as expected the low symptom group (score 0-10) had minimal improvement in QoL (0.23) and 5 out of 13 patients (38%) had a worse score. The medium group (score 11-40) had a mean improvement in QoL of 17.25 with 3 out of 92 (3.2%) experiencing a worse score. The high symptom group (score 41-90) had a mean improvement in QoL of 45.4 with only 1 of 76 (1.3%) experiencing a worse score. CONCLUSIONS: LA Inguinal hernia repair improves QoL substantially 6-months after surgery. However, in those patients with low pre-operative scores (< 11) the gain is minimal and rates of chronic symptoms following surgery are very high. We recommend avoiding surgery in this group and instead adopting a surveillance approach.

Optimizing Small, Low-Risk, Unruptured Intracranial Aneurysm Treatment Using Game Theory.

The incidental diagnosis of unruptured intracranial aneurysms has been increasing in the past several decades. A significant proportion represent small, low-risk, unruptured intracranial aneurysms for which there is equipoise on whether to offer treatment or conservative management. Given this uncertainty, patients may not always be comfortable with their physicians' recommendations. Herein, we use game theory to study the interactions between physicians and patients to determine how conflict and cooperation affect the management of small, low-risk, unruptured intracranial aneurysms. We constructed a game theory model of the interaction between physicians and patients with respect to decision-making for a small, low-risk, unruptured intracranial aneurysm in an asymptomatic patient when there is perceived equipoise between whether to treat or manage conservatively. Assuming that both the physician and patient are rational and eliciting individual patient preferences is not practical, the physician should play the game based on an ex ante probability of meeting a patient with a certain type of preference. This recommendation means that the expectations of the physician regarding the patient's preferences should guide the decision to offer treatment or conservative management as a first option for a small, asymptomatic, low-risk, unruptured intracranial aneurysm for which there is clinical equipoise.

Outcomes after carotid angioplasty and stenting in symptomatic octogenarians.

OBJECTIVE: Octogenarians were excluded from participation in many carotid endarterectomy trials due to the high complication rates observed in past studies. However, stroke resulting from carotid stenosis is expected to increase with the aging population. Moreover, advances in Carotid Angioplasty and Stenting (CAS) techniques have resulted in perceived improved safety of this procedure. We sought to review our experience with carotid stenting in symptomatic octogenarians with an emphasis on short-term outcomes and complications. METHODS: This is a retrospective longitudinal cohort study of all symptomatic patients who underwent CAS in our center between 1997 and 2007. Thirty-day stroke and death rates, and length of hospitalization were compared between the symptomatic octogenarians and non-octogenarians. RESULTS: A total of 214 procedures were performed on 211 symptomatic patients (56 females). Fifty-nine patients (14 females) were octogenarians. The median (interquartile range) age on procedure date for the octogenarian cohort was 83 (4) years. Periprocedural death occurred in two (3.4%) octogenarians and five (3.3%) non-octogenarians (p = 0.97). At 30 days from the procedure, stroke occurred in four (6.8%) octogenarians and seven (4.6%) non-octogenarians (p= 0.52). The mean hospital stay (4.8 days) was not different between the two cohorts. Age was not a predictor of the 30-day risk of composite stroke or death. CONCLUSION: The complications rate observed in octogenarians was not significantly higher than non-octogenarians. Our findings suggest that octogenarians should be included in randomized trials examining CAS to better define the risk-benefit profile of this procedure in the elderly.

Low vitamin D levels and prognosis in a COVID-19 pediatric population: a systematic review.

We aim to study the relationship between vitamin D level, risk and severity of Coronavirus disease of 2019 (COVID-19) infection in pediatric population through systematic review. We searched PubMed, CINAHL, EMBASE, Cochrane Library and Google Scholar from December 2019 to June 2021 for retrieving articles studying association between vitamin D deficiencies with COVID-19. Qualitative details were synthesized in evidence table and quantitative data was used for deriving pooled estimate through meta-analysis. After initial search of 2261 articles, eight eligible studies (two reviews) were included in the systematic review. Meta-analysis of the quantitative data (six studies) showed pooled prevalence of vitamin D deficiency as 45.91% (95% CI: 25.148-67.450). In infected pediatric patients, low levels of vitamin D increased the risk of severe disease (odds ratio-5.5; 95% CI: 1.560-19.515; P = 0.008). It was also found that children and adolescents having vitamin D deficiency had greater risk of COVID infection as compared to patients with normal vitamin D levels. Improvement in disease severity with vitamin D supplementation was also noted. The systematic review showed that almost half of the pediatric COVID patients suffer from vitamin D deficiency. It is also clear that the low level of vitamin D is associated with greater risk of infection and poorer outcome in pediatrics.

Epidemiological, clinical and biomarker profile of pediatric patients infected with COVID-19.

BACKGROUND: Given the limited and diverse nature of published literature related to COVID-19 in pediatrics, it is imperative to provide evidence-based summary of disease characteristics for guiding policy decisions. We aim to provide comprehensive overview of epidemiological, clinical and biomarker profile of COVID-19 infection in pediatric population. METHODS: For this umbrella review, published systematic reviews from PubMed and pre-print databases were screened. Literature search was conducted from December 2019 to April 2021. Details of clinical, radiological and laboratory features were collected from each review. Qualitative observations were synthesized and pooled prevalence of mortality and asymptomatic cases were assessed using meta-analysis. RESULTS: Evidence synthesis of 38 systematic reviews included total 1145 studies and 334 398 children and adolescents. Review revealed that COVID-19 is relatively milder with better prognosis in pediatrics. However, patients with comorbidity are at higher risk. Meta-analysis of reviews showed that 21.17% (95% CI: 17.818-24.729) of the patients were asymptomatic and mortality rate was 0.12% (95% CI: 0.0356-0.246). Though there was no publication bias, significant heterogeneity was observed. Fever (48-64%) and cough (35-55.9%) were common symptoms, affecting almost every alternate patient. Ground-glass opacities (prevalence range: 27.4-61.5%) was most frequent radiographic observation. Rise in C-reactive protein, lactate dehydrogenase and D-dimer ranged from 14% to 54%, 12.2-50% and 0.3-67%, respectively. Some of the included reviews (44.7%-AMSTAR; 13.2%-GRADE) were of lower quality. CONCLUSION: Current umbrella review provides most updated information regarding characteristics of COVID-19 infection in pediatrics and can be used to guide policy decision regarding vaccination prioritization, early screening and identification of at-risk population.

Rescan Time Delays in Ischemic Stroke Imaging: A Retrospective Observation and Analysis of Causes and Clinical Impact.

BACKGROUND AND PURPOSE: Delays to reperfusion negatively impact outcomes of patients with ischemic stroke, yet current guidelines recommend selective sequential imaging for thrombectomy candidates. We aimed to quantify and analyze time delays associated with rescanning in sequential acute stroke imaging. MATERIALS AND METHODS: This was a retrospective cohort study of consecutive patients with acute ischemic stroke who underwent imaging for treatment decision-making from January 1, 2017, to June 30, 2020. Rescan time delay was defined as ≥10-minute difference between initial NCCT and CTA ± CTP. Mean rescan time delays in comprehensive and primary stroke centers were compared. Bivariate and multivariable regression analyses assessed clinical and imaging factors associated with rescanning time delays and early outcomes. RESULTS: A total of 588 patients with acute ischemic were included in statistical analyses. Rescanning occurred in 27.9% (164/588 patients), with a mean time delay of 53.7 (SD, 43.4) minutes. For patients presenting at primary compared with comprehensive stroke centers, rescan time delays were more common (59.6% versus 11.8%, P < .001), with longer delays (65.4 [SD, 45.4] minutes versus 23.6 [SD, 14.0] minutes, P < .001). Independent predictors of rescan time delays included primary stroke center presentation, intravenous thrombolysis administration, black race, admission NIHSS ≥10, baseline independent ambulation, and onset-to-comprehensive stroke center arrival in ≥6 hours. Protocols for early simultaneous comprehensive CT (NCCT + CTA + CTP) were associated with lower odds of time delays (OR = 0.34; 95% CI, 0.21-0.55). Rescanning was associated with lower odds of home discharge (OR = 0.53; 95% CI, 0.30-0.95). CONCLUSIONS: A sequential approach to CT-based imaging may be significantly associated with prolonged acute stroke evaluations. Adoption of early simultaneous comprehensive CT could minimize treatment delays and improve outcomes.

A novel DFNB1 deletion allele supports the existence of a distant cis-regulatory region that controls GJB2 and GJB6 expression.

Eleven affected members of a large German-American family segregating recessively inherited, congenital, non-syndromic sensorineural hearing loss (SNHL) were found to be homozygous for the common 35delG mutation of GJB2, the gene encoding the gap junction protein Connexin 26. Surprisingly, four additional family members with bilateral profound SNHL carried only a single 35delG mutation. Previously, we demonstrated reduced expression of both GJB2 and GJB6 mRNA from the allele carried in trans with that bearing the 35delG mutation in these four persons. Using array comparative genome hybridization (array CGH), we have now identified on this allele a deletion of 131.4 kb whose proximal breakpoint lies more than 100 kb upstream of the transcriptional start sites of GJB2 and GJB6. This deletion, del(chr13:19,837,344-19,968,698), segregates as a completely penetrant DFNB1 allele in this family. It is not present in 528 persons with SNHL and monoallelic mutation of GJB2 or GJB6, and we have not identified any other candidate pathogenic copy number variation by arrayCGH in a subset of 10 such persons. Characterization of distant GJB2/GJB6 cis-regulatory regions evidenced by this allele may be required to find the 'missing' DFNB1 mutations that are believed to exist.