Tag: pubmed

Am J Transplant. 2021 Jul 31. doi: 10.1111/ajt.16779. Online ahead of print.

ABSTRACT

Bariatric surgery has been shown to be safe in the dialysis population. Whether bariatric surgery before kidney transplantation influences post-transplant outcomes has not been examined nationally. We included severely obese (BMI>35) dialysis patients between 18-70 years who received a kidney transplant according to the US Renal Data System. We determined the association between history of bariatric surgery and risk of 30-day readmission, graft failure, or death after transplantation using multivariable logistic, Cox, and Fine-Gray models. We included 12,573 patients, of whom 503 (4%) received bariatric surgery before transplantation. Median age at transplant was 53 years; 42% were women. History of bariatric surgery was not statistically significantly associated with graft failure (HR 1.02;95% CI 0.77-1.35) or death (HR 1.10;95% CI 0.84-1.45). However, sleeve gastrectomy (vs. no bariatric surgery) was associated with lower risk of graft failure (HR 0.39;95% CI 0.16-0.95). Overall, history of bariatric surgery prior to kidney transplantation was not associated with allograft or patient survival, but findings varied by surgery type. Sleeve gastrectomy was associated with better graft survival and should be considered in severely obese transplant candidates receiving dialysis.

PMID:34331744 | DOI:10.1111/ajt.16779

J Med Imaging Radiat Oncol. 2021 Jul 31. doi: 10.1111/1754-9485.13287. Online ahead of print.

ABSTRACT

INTRODUCTION: There is significant potential to analyse and model routinely collected data for radiotherapy patients to provide evidence to support clinical decisions, particularly where clinical trials evidence is limited or non-existent. However, in practice there are administrative, ethical, technical, logistical and legislative barriers to having coordinated data analysis platforms across radiation oncology centres.

METHODS: A distributed learning network of computer systems is presented, with software tools to extract and report on oncology data and to enable statistical model development. A distributed or federated learning approach keeps data in the local centre, but models are developed from the entire cohort.

RESULTS: The feasibility of this approach is demonstrated across six Australian oncology centres, using routinely collected lung cancer data from oncology information systems. The infrastructure was used to validate and develop machine learning for model-based clinical decision support and for one centre to assess patient eligibility criteria for two major lung cancer radiotherapy clinical trials (RTOG-9410, RTOG-0617). External validation of a 2-year overall survival model for non-small cell lung cancer (NSCLC) gave an AUC of 0.65 and C-index of 0.62 across the network. For one centre, 65% of Stage III NSCLC patients did not meet eligibility criteria for either of the two practice-changing clinical trials, and these patients had poorer survival than eligible patients (10.6 m vs. 15.8 m, P = 0.024).

CONCLUSION: Population-based studies on routine data are possible using a distributed learning approach. This has the potential for decision support models for patients for whom supporting clinical trial evidence is not applicable.

PMID:34331748 | DOI:10.1111/1754-9485.13287

Catheter Cardiovasc Interv. 2021 Jul 31. doi: 10.1002/ccd.29885. Online ahead of print.

ABSTRACT

OBJECTIVES: We aimed to identify risk factors for major transcatheter aortic valve intervention (TAVI) access site complications based on detailed analysis of the preprocedural computed tomography angiogram (CTA).

BACKGROUND: Transfemoral TAVI has become the treatment of choice for severe aortic stenosis in elderly patients, especially with increased perioperative risk. Frailty, however, favors complications at the vascular access site due to the large bore vascular sheath devices necessary for valve deployment.

METHODS: In this monocentric study, we retrospectively analyzed the preprocedural CTA of 417 consecutive patients that received transfemoral TAVI between 2015 and 2019 to quantify vessel diameter, calcification volume and calcified plaque location in detail within 10 cm proximal to the femoral bifurcation.

RESULTS: The mean age of the study cohort was 81.4 ± 6.5 years with a STS of 8 ± 5.2 representing a population at increased periprocedural risk. 54.4% of patients were female. Major vascular access site complications occurred in 8.2% of patients. Major vascular complications correlated statistically with a sheath-to-vessel diameter (SFAR) when measured 1 cm proximal to the femoral bifurcation using a line-derived diameter and ventral calcification within the first 5 cm proximal to the bifurcation. In contrast, overall calcification volume had no influence.

CONCLUSIONS: Transfemoral TAVI harbors a considerable risk for vascular access site complications especially if vessel diameter is too small to comfortably host the sheath diameter at the area of the femoral bifurcation. For preprocedural TAVI planning and risk assessment, location of calcification, especially if located ventrally, seems to be more relevant than consideration of overall calcification alone.

PMID:34331732 | DOI:10.1002/ccd.29885

Transbound Emerg Dis. 2021 Jul 31. doi: 10.1111/tbed.14254. Online ahead of print.

ABSTRACT

Vaccination of badgers with Mycobacterium bovis Bacille Calmette Guérin (BCG) has been shown to protect badgers against tuberculosis in experimental trials. During the three-year County Kilkenny BCG vaccine field study, badgers were treated orally with placebo (100% in Zone A), BCG (100% in Zone C) or randomly assigned 50%: 50% treatment with BCG or placebo (Zone B). At the end of the study 275 badgers were removed from the trial area and subjected to detailed post-mortem examination followed by histology and culture for M. bovis. Among these badgers, 83 (30.2%) were captured for the first time across the three zones, representing a non-treated proportion of the population. Analysis of the data based on the infection status of treated animals showed a prevalence of 52% (95% CI: 40%-63%) infection in Zone A (placebo), 39% (95% CI: 17%-64%) in Zone B (placebo) and 44% (95% CI: 20%-70%) in Zone B (BCG vaccinated) and 24% (95% CI: 14%-36%) in Zone C (BCG vaccinated). There were no statistically significant differences in the proportion of animals with infection involving the lung and thoracic lymph nodes, extra-thoracic infection, or in the distribution and severity scores of histological lesions. Among the 83 non-treated badgers removed at the end of the study, the infection prevalence of animals in Zone A (prevalence = 46%, 95% CI: 32%-61%) and Zone B (prevalence = 44%, 95% CI: 23%-67%) was similar to the treated animals in these zones. However, in Zone C, no evidence of infection was found in any of the untreated badgers (prevalence = 0%, 95% CI: 0%-14%). This is consistent with an indirect protective effect in the non-vaccinated badgers leading to a high level of population immunity. The results suggest that BCG vaccination of badgers could be a highly effective means of reducing the incidence of tuberculosis in badger populations. This article is protected by copyright. All rights reserved.

PMID:34331741 | DOI:10.1111/tbed.14254

J Med Virol. 2021 Jul 31. doi: 10.1002/jmv.27250. Online ahead of print.

ABSTRACT

OBJECTIVE: To compare RT-PCR results of nasopharyngeal aspiration (NA) and nasopharyngeal swab (NS) samples in the diagnosis of COVID-19.

METHODS: NS was obtained with a dacron swab and NA was performed by aspiration cannula. The sampling was performed by an otolaryngologist to ensure standardized correct sampling from the nasopharynx. The RT-PCR was performed for the detection of SARS-CoV-2. The level of agreement between the result of NA and NS samples for each patient was analyzed. The Ct values were compared.

RESULTS: Thirty-three patients were enrolled in the study with a mean age of 56,3 years. Thirteen subjects resulted negative with both NS and NA; 20 subjects resulted positive with NA and 18 subjects resulted positive with NS. The mean values of Ct for NA samples and NS samples were 24,6±5,9 and 24±6,7, respectively. There was no statistical difference between Ct values of NA and NS samples (p=0,48).

CONCLUSION: RT-PCR for SARS-Cov2 performed with NA sample and NS sample showed a strong correlation regarding the positivity /negativity and the Ct values. This article is protected by copyright. All rights reserved.

PMID:34331714 | DOI:10.1002/jmv.27250

Am J Hum Biol. 2021 Jul 31:e23654. doi: 10.1002/ajhb.23654. Online ahead of print.

ABSTRACT

OBJECTIVES: Biological normalcy is a framework that investigates relationship(s) between statistical norms and normative views/beliefs around particular traits. This study assessed the relationships between perceptions of average body weight, healthy body weight, and weight status among adolescents.

METHODS: Adolescents recruited in southcentral Indiana, United States (n = 123) completed online questionnaires for demographics and body weight perceptions. Silhouettes from the Stunkard Figure Rating Scale measured perceived weight status, perceived average body weight, and perceived healthy body weight. Height and weight were measured to calculate body mass index-for-age percentiles. A subsample (n = 11) provided descriptions of “average,” “healthy,” and “normal” bodies during semi-structured interviews.

RESULTS: As perceived average body weight increased, selections of “healthy” silhouettes shifted downward, with smaller female silhouettes being marked healthy more often and larger male silhouettes being marked healthy less often. Additionally, perceived weight status was positively associated with perceptions around average body weight and lowest body weight perceived to be healthy for female and male silhouettes. Qualitative data demonstrated significant overlap in adolescents’ descriptions of “average,” “healthy,” and “normal” bodies as well as dual meanings for the term “normal” in adolescents’ views of body weight.

CONCLUSIONS: Perceived weight status appears to play a role in adolescents’ conceptualizations of average and healthy body weight. Additionally, Qualitative and quantitative data indicated that perceived body weight norms were associated with normative perceptions around what healthy bodies look like. This study demonstrates relationships between statistical norms and normative views around body weight, underscoring the duality in how body weight is understood to be “normal” among adolescents.

PMID:34331719 | DOI:10.1002/ajhb.23654

Int J Clin Pract. 2021 Jul 31:e14687. doi: 10.1111/ijcp.14687. Online ahead of print.

ABSTRACT

AIM: In the literature, there are no data examining the association with lichen planus with acanthosis nigricans and acrochordon, which are skin findings of metabolic syndrome (MS).

MATERIALS: 108 lichen planus (LP) cases, age and sex-matched 109 controls, 217 cases in total were prospectively included in the study.

RESULTS: Metabolic Syndrome was found in 55 (50.9%) of 108 cases with lichen planus and 36.7% in the control group. The frequency of MS in the lichen planus group was found to be significantly higher than in the control group (p=0.03). The incidence of Acanthosis nigricans (AN) was statistically higher in the LP group (p=0.009). In addition, while 38 of 47 AN patients in the LP group had MS, while 17 of 61 patients without AN had MS, the presence of MS was found significantly higher in LP cases with AN (p˂0.001). The incidence of acrochordon was statistically higher in the LP group (p=0.03). In addition, while 43 of 62 patients with acrochordon in the LP group had MS, 12 of 46 patients without acrochordon had MS, and the presence of MS was found significantly higher in patients with LP with acrochordon (p˂0.001).

CONCLUSION: In our study, it was found that skin findings such as AN and acrochordon increased in patients with lichen planus. This increase was also observed in lichen planus patients with metabolic syndrome. Therefore, the association of acanthosis nigricans and acrochordon may be a predictive of metabolic syndrome in patients with lichen planus admitted to the dermatology outpatient clinic.

PMID:34331725 | DOI:10.1111/ijcp.14687

Environ Sci Pollut Res Int. 2021 Jul 31. doi: 10.1007/s11356-021-14956-6. Online ahead of print.

ABSTRACT

Carbon emissions from tourism are an important indicator to measure the impact of tourism on environmental quality. As the world’s largest industry, tourism has many related industries and is a strong driver of energy consumption. The emission reductions it can achieve will directly determine whether China’s overall carbon emission reduction target can be met. This paper analyzes the drivers of the evolution of carbon emissions from the tourism industry in China over the period 2000-2017 as a research sample using the Generalized Dividing Index Method (GDIM), and on this basis, it uses scenario analysis and Monte Carlo simulation to predict the carbon peak in tourism for the first time. The research results show that the scale of industry and energy consumption are the key factors leading to increased tourism carbon emissions, and the carbon intensity of tourism industry, energy consumption carbon intensity, investment efficiency, and energy intensity are the main factors leading to reduced carbon emissions from tourism. The scale of investment and the carbon intensity of investment have a dual effect; the scenario analysis and Monte Carlo simulation used to predict peak carbon in China’s tourism industry show that the peak carbon will occur approximately in 2030. The government needs to further guide and encourage the tourism industry to increase investment activities targeting energy conservation and emission reduction. Under the conditions of strictly implementing energy conservation and emission reduction measures and vigorous promotion of the transformation and upgrading of tourism development methods, the tourism industry will have considerable potential to reduce carbon emissions.

PMID:34331642 | DOI:10.1007/s11356-021-14956-6

Diabetes Ther. 2021 Jul 31. doi: 10.1007/s13300-021-01121-y. Online ahead of print.

ABSTRACT

INTRODUCTION: Poor medication adherence and disordered eating are major self-care problems in patients with type 2 diabetes that worsen glycemic control and increase the risk of developing severe diabetes complications. Affective temperament, which remains mostly unchanged throughout life, is speculated to predict poor treatment response and high comorbidity. The aim of this study was to explore the link between affective temperament and poor glycemic control due to insufficient self-care.

METHODS: This single-center case-control study involved 77 outpatients divided into the ‘poor glycemic control’ group (n = 52) and the ‘better glycemic control’ group (n = 25) based on their mean glycated hemoglobin (HbA1c) levels over the past 12 months. All participants underwent one-on-one interviews during which they completed the following psychometric questionnaires: (1) the Mini-International Neuropsychiatric Interview 5.0.0; (2) the Temperament Evaluation of Memphis, Pisa, and San Diego Auto-questionnaire; (3) a researcher-designed single question for assessing subclinical stress-induced overeating; and (4) the Morisky Medication Adherence Scale. The difference between two continuous independent variables was determined using Student’s t test. Discrete variables were compared using the Chi-square (χ²) or Fisher’s exact test. Multiple testing corrections were performed using the false discovery rate.

RESULTS: Those outpatients in the poor glycemic control group exhibited significantly more stress-induced overeating (χ² = 1.14, q statistic = 0.040) and poor medication adherence (t = 3.70, q = 0.034) than those in the better glycemic control group. However, there were no significant differences between the two groups in terms of affective temperaments, clinical eating disorders, or diabetes-specific distress. Patients with stress-induced overeating (t = – 2.99, p = 0.004) and poor medication adherence (t = – 4.34, p = 0.000) exhibited significantly higher scores for cyclothymic temperament than their counterparts.

CONCLUSION: Cyclothymic temperament is significantly associated with disordered eating and/or poor medication adherence in patients with type 2 diabetes and is possibly linked to poor glycemic control.

PMID:34331669 | DOI:10.1007/s13300-021-01121-y

Int Ophthalmol. 2021 Jul 31. doi: 10.1007/s10792-021-01991-y. Online ahead of print.

ABSTRACT

PURPOSE: The objective of this study was to examine the effects of alopecia areata (AA) on the ocular surface and conjunctival cytology.

METHODS: A total of 48 subjects were included in the present study. Twenty-three subjects were assigned to group 1 as the patient group, and 25 healthy individuals were included in group 2 as the control group. The ocular surface examination was performed, and the right eyes of all participants were included in the analysis. Both groups underwent the following tests for evaluation of ocular surface: tear break-up time (TBUT), Schirmer I test, Ocular Surface Disease Index (OSDI), and conjunctival impression cytology (CIC). Results obtained from the tests were then analyzed and compared between the groups.

RESULTS: The mean TBUT value was significantly lower in Group 1 compared to Group 2 (4.96 ± 3.4 vs 10.52 ± 4.8 s) (p < 0.001). There was no significant difference between Group 1 and Group 2 in terms of the mean Schirmer I test score (p = 0.129). The mean OSDI score was higher in Group 1 compared to Group 2 (15.48 ± 10.4 vs 9.61 ± 13.4), but the difference between both groups was not statistically significant (p = 0.1). The mean CIC score was statistically significantly higher in Group 1 than in Group 2 (1.65 ± 0.7 vs 0.52 ± 0.5) (p < 0.001).

CONCLUSION: The results of this study showed that AA was correlated with significant disturbances in conjunctival cytology and the tear function.

PMID:34331623 | DOI:10.1007/s10792-021-01991-y