41 results match your criteria: "Universities of Lausanne[Affiliation]"

Complete atrioventricular septal defect is a common congenital malformation. Various surgical corrections coexist. This video tutorial describes a correction that preserves the height of the leaflets by splitting both the anterior and the posterior bridging leaflets and using two patches to close the ventricular septal defect and the atrial septal defect separately.

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With aging populations worldwide, there is growing interest in links between cognitive decline and elevated mortality risk-and, by extension, analytic approaches to further clarify these associations. Toward this end, some researchers have compared cognitive trajectories of survivors vs. decedents while others have examined longitudinal changes in cognition as predictive of mortality risk.

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This study aimed to evaluate the effectiveness of a short mindfulness intervention on anxiety, stress and depression symptoms, as well as on inhibition of dominant responses and academic performance among university students. Fifty volunteers (M(age) = 23.8; SD = 5.

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Human skin permeation rates ex vivo following exposures to mixtures of glycol ethers.

Toxicol Lett

December 2020

Center for Primary Care and Public Health (Unisanté), Universities of Lausanne, Lausanne-Epalinges, Switzerland. Electronic address:

Skin exposure to cleaning products in the general and occupational population are a public health concern. Among the most frequently identified amphiphilic organic solvents in cleaning products are propylene glycol monomethyl ether (PGME) and propylene glycol n-butyl ether (PGBE). Internal dose from skin exposure may be efficiently evaluated using in vitro flow-through diffusion cells with excised human skin.

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The first orthotopic heart transplant was performed in 1967. Following on from this achievement, the first major evolution in heart transplantation was the transition from biatrial anastomosis to separate caval anastomoses, in 1991. Various strategies for myocardial protection have been used for this.

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Background: Efforts to identify important risk factors for cognitive impairment and dementia have to date mostly relied on meta-analytic strategies. A comprehensive empirical evaluation of these risk factors within a single study is currently lacking.

Objective: We used a combined methodology of machine learning and semi-parametric survival analysis to estimate the relative importance of 52 predictors in forecasting cognitive impairment and dementia in a large, population-representative sample of older adults.

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There is a debate on possible alterations of self-identity following deep brain stimulation for neurological disorders including Parkinson's disease. Among the psychological variables likely to undergo changes throughout such a medical procedure, illness representations and coping strategies have not been the target of much research to this day. In order to remedy this, we investigated the dynamics of illness representations and coping strategies in an 18-month longitudinal study involving 45 patients undergoing deep brain stimulation for idiopathic Parkinson's disease.

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Tolylfluanid permeates human skin slowly and as dimethylamino sulfotoluidid (DMST).

Toxicol Lett

May 2020

Center for Primary Care and Public Health (Unisanté), University of Lausanne, Switzerland. Electronic address:

Tolylfluanid (TF) is a sensitizing biocide used in antifouling products and wood preservatives. Paint application is associated with skin exposure; however, the importance of this exposure route is uncertain as TF skin permeation rates are lacking in the peer-reviewed scientific literature. TF is a lipophilic powder that hydrolyses rapidly in contact with water to dimethylamino sulfotoluidid (DMST).

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Since the first pediatric orthotopic heart transplant was performed by Dr Adrian Krantowicz in 1967, just days after the first ever human transplant by Dr Christiaan Barnard, the technique for orthotopic heart transplantation has evolved from biatrial anastomosis to separate caval anastomoses, leaving the right atrium intact. In this video tutorial, we present our technique for standard orthotopic heart transplantation in children.

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Ethanolamines permeate slowly across human skin ex vivo, but cause severe skin irritation at low concentrations.

Arch Toxicol

September 2019

Center for Primary Care and Public Health (Unisanté; formerly known as Institute for Work and Health (IST)), University of Lausanne, Lausanne, Switzerland.

Skin exposures are common during cleaning activities, and may contribute to the overall body burden. Cleaning products may contain irritants such as monoethanolamine (MEA) and diethanol amine (DEA). The significance of the skin exposure route is unknown, as no estimates for MEA skin permeation are available.

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Biological monitoring of workers exposed to carcinogens using the buccal micronucleus approach: A systematic review and meta-analysis.

Mutat Res Rev Mutat Res

March 2020

IST, Institute for Work and Health, Universities of Lausanne and Geneva, Lausanne-Epalinges, Switzerland; INRS, French Institute for Research and Safety, Vandoeuvre, France. Electronic address:

A biomarker-based approach using micronucleus (MN) (extranuclear DNA-containing bodies) frequencies in buccal cells has been proposed to monitor workers exposed to aero-digestive carcinogens for early detection of occupational cancer. To assess this non-invasive MN approach, we sought to understand: (A) What is the extent of MN frequency increase in occupationally exposed over non-exposed populations across studies published in the scientific literature for buccal cells; and (B) Which types of occupational exposures give relevant summary MN ratios across studies published in the scientific literature. A systematic literature review was performed, and the MN frequency ratios for buccal cells were calculated for each occupational study.

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The use of screen electronic devices in the evening negatively affects sleep. Yet, sleep is known to be essential for brain maturation and a key factor for good academic performance, and thus is particularly critical during childhood and adolescence. Although previous studies reported associations between screen time and sleep impairment, their causal relationship in adolescents remains unclear.

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The goal of surgical treatment of aortic coarctation is to relieve the pressure gradient on the aorta and to allow for subsequent growth of the repaired aorta. In this regard, coarctation resection and extended end-to-end anastomosis has become the surgical gold standard. Early and long-term results have been reported to be excellent.

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Altered gene expression in pathways relevant to leukaemogenesis, as well as reduced levels of circulating lymphocytes, have been reported in workers that were exposed to benzene concentrations below 1 ppm. In this study, we analysed whole blood global gene expression patterns in a worker cohort with altered levels of T cells and immunoglobulins IgM and IgA at three time points; pre-shift, post-shift (after three days), and post-recovery (12 hours later). Eight benzene exposed tank workers performing maintenance work in crude oil cargo tanks with a mean benzene exposure of 0.

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We examined reciprocal, time-ordered associations between age-related changes in fluid intelligence and depressive symptoms. Participants were 1,091 community-dwelling older adults from the Lothian Birth Cohort 1936 study who were assessed repeatedly at 3-year intervals between the ages of 70 and 79 years. On average, fluid intelligence and depressive symptoms worsened with age.

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Purpose: Most industrialized countries have introduced maternity protection legislation (MPL) to protect the health of pregnant workers and their unborn children from workplace exposure. This review aimed to assess this legislation's level of implementation, barriers and facilitators to it, and its expected or unexpected effects.

Methods: A realist narrative review was conducted.

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Cardiovascular symptoms and longitudinal declines in processing speed differentially predict cerebral white matter lesions in older adults.

Arch Gerontol Geriatr

May 2019

Faculty of Psychology and Educational Sciences, University of Geneva, Switzerland; Swiss National Center of Competence in Research LIVES-Overcoming vulnerability: Life course perspectives, Universities of Lausanne and of Geneva, Switzerland; Swiss Distance Learning University, Brig, Switzerland.

It is well established that cerebral white matter lesions (WML), present in the majority of older adults, are associated with cardiovascular and cerebrovascular diseases and also with cognitive decline. However, much less is known about how WML are related to other important individual characteristics and about the generality vs. brain region-specificity of WML.

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Left ventricular assist devices (LVADs) are currently the best alternative to cardiac transplantation for patients with end-stage heart failure (HF) as a bridge to transplant or to decision, or as destination therapy. Full median sternotomy or minimally invasive techniques are the more standard approaches used at present.  LVADs are usually implanted between the left ventricle apex and the ascending aorta.

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We examined adult age differences in day-to-day adjustments in speed-accuracy tradeoffs (SAT) on a figural comparison task. Data came from the COGITO study, with over 100 younger and 100 older adults, assessed for over 100 days. Participants were given explicit feedback about their completion time and accuracy each day after task completion.

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Porcine hepatocytes transplanted during acute liver failure might support metabolic functions until the diseased liver recovers its function. Here, we isolated high numbers of viable pig hepatocytes and evaluated hepatocyte functionality after encapsulation. We further investigated whether coculture and coencapsulation of hepatocytes with human multipotent mesenchymal stromal cells (MSC) are beneficial on hepatocyte function.

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Successful prospective memory (PM) performance relies on executive functions, including inhibition. However, PM and inhibition are usually assessed in separate tasks, and analytically the focus is either on group differences or at most on interindividual differences. Conjoint measures of PM and inhibition performance that take into account intraindividual variability (IIV) are thus missing.

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Road construction workers are simultaneously exposed to two carcinogens; solar ultraviolet (UV-S) radiation and polycyclic aromatic hydrocarbons (PAHs) in bitumen emissions. The combined exposure may lead to photogenotoxicity and enhanced PAH skin permeation rates. Skin permeation rates (J) for selected PAHs in a mixture (PAH-mix) or in bitumen fume condensate (BFC) with and without UV-S co-exposures were measured with in vitro flow-through diffusion cells mounted with human viable skin and results compared.

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Memory Deficits Precede Increases in Depressive Symptoms in Later Adulthood.

J Gerontol B Psychol Sci Soc Sci

August 2019

Swiss National Center of Competence in Research LIVES-Overcoming vulnerability: Life course perspectives, Universities of Lausanne and of Geneva, Switzerland.

Objectives: We examined bidirectional, time-ordered associations between age-related changes in depressive symptoms and memory.

Method: Data came from 107,599 community-dwelling adults, aged 49-90 years, who participated in the Survey of Health, Ageing, and Retirement in Europe (SHARE). Depressive symptoms were measured with the EURO-D inventory, and memory was evaluated as delayed recall of a 10-word list.

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Illness and intelligence are comparatively strong predictors of individual differences in depressive symptoms following middle age.

Aging Ment Health

January 2019

a Swiss National Center of Competence in Research LIVES - Overcoming Vulnerability: Life Course Perspectives , Universities of Lausanne and of Geneva, Switzerland.

Objective: We compared the importance of socio-demographic, lifestyle, health, and multiple cognitive measures for predicting individual differences in depressive symptoms in later adulthood.

Method: Data came from 6203 community-dwelling older adults (age 41-93 years at study entry) from the United Kingdom. Predictors (36 in total) were assessed up to four times across a period of approximately 12 years.

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The success of the arterial switch operation mostly depends on the proper relocation of the coronary arteries. This involves more than the simple suturing of the coronary cuff to the neo-aortic root, it also involves the preparation of the landing zone and the correct mobilisation of the primary coronary branches. In this tutorial, we present our technique for correction of a dextro-transposition of the great arteries with a normal, type A, coronary artery pattern.

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