Heat-evoked activation of TRPV4 channels in an HEK-293 cell expression system and in native mouse aorta endothelial cells

Peer reviewe

Dacron or ePTFE for Femoro-popliteal above-knee bypass grafting:short and long-term results of a multicentre randomised trial

AbstractObjectivesTo compare expanded polytetrafluoroethylene (ePTFE) prosthesis and collagen-impregnated knitted polyester (Dacron) for above-knee (AK) femoro-popliteal bypass grafts.DesignA prospective multicentre randomised clinical trial.Patients and MethodsBetween 1992 and 1996, 228 AK femoro-popliteal bypass grafts were randomly allocated to either an ePTFE (n=114) or a Dacron (n=114) vascular graft (6mm in diameter). Patients were eligible for inclusion if presenting with disabling claudication, rest pain or tissue loss.Follow-up was performed and included clinical examination and duplex ultrasonography at all scheduled intervals. All patients were treated with warfarin.The main end-point of this study was primary patency of the bypass graft at 2, 5 and 10 years after implantation. Secondary end-points were mortality, primary assisted patency and secondary patency. Cumulative patency rates were calculated with life-table analysis and with log-rank test.ResultsAfter 5 years, the primary, primary assisted and secondary patency rates were 36% (confidence interval (CI): 26–46%), 46% (CI: 36–56%) and 51% (CI: 41–61%) for ePTFE and 52% (CI: 42–62%) (p=0.04), 66% (CI: 56–76%) (p=0.01) and 70% (CI: 60–80%) (p=0.01) for Dacron, respectively. After ten years these rates were respectively 28% (CI:18-38%), 31% (CI:19-43%) and 35% (CI: 23-47%) for ePTFE and 28% (CI: 18-38%), 49% (CI: 37-61%) and 49% (CI: 37-61%) for Dacron.ConclusionDuring prolonged follow-up (10 years), Dacron femoro-popliteal bypass grafts have superior patency compared to those of ePTFE grafts. Dacron is the graft material of choice if the saphenous vein is not available

Healthy or not: influencing attention to bias food choices

Health and self-regulatio

What I see is what I want: top-down attention biasing choice behavior

Health and self-regulatio

Methodological considerations in quantification of oncological FDG PET studies

Contains fulltext : 87741.pdf (publisher's version ) (Closed access) Contains fulltext : 87741-1.pdf (postprint version ) (Open Access)PURPOSE: This review aims to provide insight into the factors that influence quantification of glucose metabolism by FDG PET images in oncology as well as their influence on repeated measures studies (i.e. treatment response assessment), offering improved understanding both for clinical practice and research. METHODS: Structural PubMed searches have been performed for the many factors affecting quantification of glucose metabolism by FDG PET. Review articles and references lists have been used to supplement the search findings. RESULTS: Biological factors such as fasting blood glucose level, FDG uptake period, FDG distribution and clearance, patient motion (breathing) and patient discomfort (stress) all influence quantification. Acquisition parameters should be adjusted to maximize the signal to noise ratio without exposing the patient to a higher than strictly necessary radiation dose. This is especially challenging in pharmacokinetic analysis, where the temporal resolution is of significant importance. The literature is reviewed on the influence of attenuation correction on parameters for glucose metabolism, the effect of motion, metal artefacts and contrast agents on quantification of CT attenuation-corrected images. Reconstruction settings (analytical versus iterative reconstruction, post-reconstruction filtering and image matrix size) all potentially influence quantification due to artefacts, noise levels and lesion size dependency. Many region of interest definitions are available, but increased complexity does not necessarily result in improved performance. Different methods for the quantification of the tissue of interest can introduce systematic and random inaccuracy. CONCLUSIONS: This review provides an up-to-date overview of the many factors that influence quantification of glucose metabolism by FDG PET.01 juli 201

The association of socioeconomic status on treatment strategy in patients with stage I and II breast cancer in the Netherlands

BACKGROUND: Previous studies have shown that socioeconomic status (SES) influences breast cancer therapy. However, these studies were performed in countries with unequal access to healthcare. Therefore, the aim of this study is to investigate whether SES also contributes to the likelihood of receiving a certain therapy in the Netherlands, a country with supposedly equal access to healthcare. MATERIALS AND METHODS: From the Netherlands Cancer Registry, 105,287 patients with newly diagnosed stage I or II breast cancer diagnosed between 2011 and 2018 were selected for analysis. SES was calculated from the average incomes of each postal code, which were divided into 10 deciles. Primary outcome was the effect of SES on the likelihood of undergoing surgery and secondary outcome was the effect of SES on the likelihood of the type of surgery. Both outcomes were corrected for patient, tumor, and hospital characteristics and were expressed as odds ratio (OR) with 95% confidence interval (CI). RESULTS: SES did not affect the likelihood of a breast cancer patient to undergo surgery (OR 1.00 per 10% stratum). In contrast, increased age and higher tumor stage were the most important factors determining whether patients underwent surgery. Patients with higher SES were less likely to undergo mastectomy (OR 0.98). Additionally, more recently diagnosed patients were less likely to undergo mastectomy (OR 0.93 per year) while patients with higher tumor stage were more likely to undergo mastectomy (OR 3.42). CONCLUSION: SES does not affect whether a patient undergoes surgery; however, higher SES increased the likelihood of BCT

The immediate impact of the coronavirus disease 2019 (COVID-19) pandemic on burn-out, work-engagement, and surgical training in the Netherlands

BACKGROUND: The coronavirus disease 2019 pandemic led to major changes in health care and education options for all health care employees. The aim of this study is to achieve insight into coronavirus disease-care participation of surgical residents in the Netherlands, the impact of coronavirus disease 2019 on the experienced quality of surgical training, and the influence on Burn-out and Work Engagement compared with the non-coronavirus disease 2019 period in January 2020.METHODS: In this study, we have conducted 2 digital surveys immediately before and 2 months after the start of the coronavirus disease 2019 pandemic. We surveyed a validated Dutch questionnaire 'Utrecht Burn-out Scale,' derived from the Maslach Burn-out Inventory, and also collected the 'Utrecht Work Engagement Scale' measuring work engagement. Additionally, we describe the coronavirus disease-care participation of surgical residents, the impact on how they experienced the quality of their surgical training, and the influence on 'Burn-out and Work Engagement' compared with the pre-coronavirus disease 2019 period for surgical residents in the Netherlands.RESULTS: In January 2020, a total of 317 residents completed the online survey, and in April 2020, a total of 313 residents completed the online survey. Of the responders, 48.6%, in April, participated in coronavirus disease-care in both the coronavirus disease ward as well as the coronavirus disease intensive care unit. Residents experienced that the coronavirus disease 2019 influenced their surgical training in 85.2% of responders. In only 5% of the residents did the pandemic not affect the exposure to surgical training in the operating theater. More burn-out symptoms were noted amongst coronavirus disease ward deployed residents versus no coronavirus disease ward deployment, (16.0% vs 7.6%, P = .06). The Work-Engagement questionnaire showed a significantly lower work engagement score of 4.2 for residents who were deployed in a coronavirus disease-care intensive care unit versus a score of 4.6 for residents scheduled in a coronavirus disease ward (P = .02).CONCLUSION: This study shows a significant impact of the first months of the coronavirus disease 2019 pandemic on the Dutch surgical trainee program, with a major redistribution of residents with a decrease of surgical exposure and education. We emphasize the need for adequate guidance of all surgical residents and potentially lengthening the surgical training program.</p