Publications by authors named "Catherine Grenier"

Since early 2020, the onset of the COVID-19 pandemic, physicians have continued to report adverse events associated with care. Patients also continued to participate in the hospital satisfaction surveys. To date, no study in France has measured the impact of the pandemic on adverse events and patient satisfaction.

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Background: End stage kidney disease (ESKD) is associated with increased morbidity and mortality. Hemodialysis (HD) is the main technique used for kidney replacement therapy. Dialyzed patients are expected to live less than one half as long as their counterparts without ESKD.

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Care quality and safety indicators, piloted by the national health authority, are tools forming part of a global programme of improvement of quality and safety of care. The national scheme for measuring the quality and safety of care provides, for all healthcare facilities, dashboards for managing care quality and safety. Currently focused on the public and private hospital sector, it needs to evolve to widen its scope to include community care and the medical-social sector.

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TOWARDS A NEW CERTIFICATION OF HEALTHCARE FACILITIES FOR 2020.: The accreditation process, now a certification process for healthcare facilities, has constantly evolved since 1999 in order to improve the quality and safety of care provided to patients. In order to meet demographic, epidemiological and social challenges, it needs to be revised again.

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Background: Results of associations between process and mortality indicators, both used for the external assessment of hospital care quality or public reporting, differ strongly across studies. However, most of those studies were conducted in North America or United Kingdom. Providing new evidence based on French data could fuel the international debate on quality of care indicators and help inform French policy-makers.

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Introduction: Quality improvement systems (QIS) that are based on empirical performance assessment have increasingly been implemented as a mandatory part of health systems across countries. This study aims to describe national mandatory QIS in Europe in 2014.

Materials And Methods: Relevant national agencies for national mandatory QIS in Europe were identified through online searches and key informants.

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Background: In-hospital mortality is widely used to judge the quality of hospital care, but is biased by discharge patterns. Fixed-timeframe indicators have thus been recommended. However, the 30-day postadmission indicator may underestimate hospital-wide mortality, as patients dying in hospital >30 days after admission are considered as survivors.

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Background: Dysregulated protein kinase signaling is involved in the pathogenesis of many chronic diseases. However, the dysregulated signaling pathways critical to prion pathogenesis remain incompletely characterized. Global analyses of signaling pathways may be useful to better characterize these pathways.

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Objectives: Accreditation in France relies on a mandatory 4-year cycle of self-assessment and a peer review of 82 standards, among which 14 focus priority standards (FPS). Hospitals are also required to measure yearly quality indicators (QIs-5 in 2010). On advice given by the accreditation committee of HAS (Haute Autorité en Santé), based on surveyors proposals and relying mostly on compliance to standards, accreditation decisions are taken by the board of HAS.

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Background: In acute myocardial infarction, the relationship between volume and quality indicators (QIs) is poorly documented. Through a nationwide assessment of QIs at discharge repeated for 3 years, we aimed to quantify the relationship between volume and QIs in survivors after acute myocardial infarction.

Methods And Results: Almost all healthcare centers in France participated.

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Objective: Implementation of a surgical checklist depends on many organisational factors and on socio-cultural patterns. The objective of this study was to identify barriers to effective implementation of a surgical checklist and to develop a best use strategy.

Setting: 18 cancer centres in France.

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Background: Coordination within hospitals is a major attribute of medical care and influences quality of care. This study tested the validity of 3 indicators covering two key aspects of coordination: the transfer of written information between professionals (medical record content, radiology exam order) and the holding of multidisciplinary team meetings during treatment planning.

Methods: The study was supervised by the French health authorities (COMPAQH project).

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The observation that PrP is present in the cytosol of some neurons and non-neuronal cells and that the N-terminal signal peptide is slightly inefficient has brought speculations concerning a possible function of the protein in the cytosol. Here, we show that cells expressing a cytosolic form of PrP termed cyPrP display a large juxtanuclear cytoplasmic RNA organelle. Although cyPrP spontaneously forms aggresomes, we used several mutants to demonstrate that the assembly of this RNA organelle is independent from cyPrP aggregation.

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Background: Our objective was to limit the burden of data collection for Quality Indicators (QIs) based on medical records.

Methods: The study was supervised by the COMPAQH project. Four QIs based on medical records were tested: medical record conformity; traceability of pain assessment; screening for nutritional disorders; time elapsed before sending copy of discharge letter to the general practitioner.

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Background: Aggresomes are juxtanuclear inclusion bodies that have been proposed to represent a general cellular response to misfolded proteins in mammalian cells. Yet, why aggresomes are not a pathological characteristic of protein misfolding diseases is unclear. Here, we investigate if a misfolded protein inevitably forms aggresomes in mammalian cells.

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In mammalian cells, cytoplasmic protein aggregates generally coalesce to form aggresomal particles. Recent studies indicate that prion-infected cells produce prion protein (PrP) aggresomes, and that such aggregates may be present in the brain of infected mice. The molecular activity of PrP aggresomes has not been fully investigated.

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Prion diseases or transmissible spongiform encephalopathies (TSEs) are infectious and fatal neurodegenerative disorders in humans and animals. Pathological features of TSEs include the conversion of cellular prion protein (PrP(C)) into an altered disease-associated conformation generally designated PrP(Sc), abnormal deposition of PrP(Sc) aggregates, and spongiform degeneration of the brain. The molecular steps leading to PrP(C) aggregation are unknown.

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Recent studies have revealed that accumulation of prion protein (PrP) in the cytoplasm results in the production of aggregates that are insoluble in non-ionic detergents and partially resistant to proteinase K. Transgenic mice expressing PrP in the cytoplasm develop severe ataxia with cerebellar degeneration and gliosis, suggesting that cytoplasmic PrP may play a role in the pathogenesis of prion diseases. The mechanism of cytoplasmic PrP neurotoxicity is not known.

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This paper attributes a novel function, namely, that of transcriptional promoter, to the self-complementary, self-cleaving hammerhead RNA sequences found in RNA derived from the peach latent mosaic viroid (PLMVd). The features of this RNA promoter, which adopts a hairpin structure that can be utilized by Escherichia coli RNA polymerase (RNAP) for in vitro transcription, that trigger the RNAP driven transcription and are responsible for the specific initiation of synthesis are described. The essential requirement for initiation is a basepaired uridine adjacent to the loop.

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