2,294 results match your criteria: "Lausanne University Hospital-CHUV[Affiliation]"

Clinical notes contain valuable information for research and monitoring quality of care. Named Entity Recognition (NER) is the process for identifying relevant pieces of information such as diagnoses, treatments, side effects, etc., and bring them to a more structured form.

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Generative machine learning models such as Generative Adversarial Networks (GANs) have been shown to be especially successful in generating realistic synthetic data in image and tabular domains. However, it has been shown that such generative models, as well as the generated synthetic data, can reveal information contained in their privacy-sensitive training data, and therefore must be carefully evaluated before being used. The gold standard method through which such privacy leakage can be estimated is simulating membership inference attacks (MIAs), in which an attacker attempts to learn whether a given sample was part of the training data of a generative model.

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Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is a new therapeutic approach for patients with peritoneal cancer. So far, most published studies investigated the administration of established cytostatic agents through PIPAC. This study aimed to evaluate the effect of PIPAC on two breakthrough anti-cancer agents, specifically anti-PD1 pembrolizumab, and anti-HER2 antibody-drug conjugate (ADC) - trastuzumab-deruxtecan.

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Article Synopsis
  • * Data from 459 patients with vessel perforation showed a 90-day mortality rate of 51.9%, with only 16.3% achieving a favorable recovery (mRS 0-2).
  • * The findings indicate that large vessel perforation leads to worse outcomes, while thrombolysis doesn’t worsen prognoses; quick management of bleeding is crucial for survival.
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Twenty-year trends of potentially avoidable hospitalizations for hypertension in Switzerland.

Hypertens Res

October 2024

Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland.

We assessed the trends, characteristics, and consequences of potentially avoidable hospitalizations (PAH) for hypertension in Switzerland, for the period 1998 to 2018. Data from 117,507 hospitalizations (62.1% women), minimum age 20 years.

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Background: Most studies on tumour progression from precursor lesion toward gallbladder adenocarcinoma investigate lesions sampled from distinct patients, providing an overarching view of pathogenic cascades. Whether this reflects the tumourigenic process in individual patients remains insufficiently explored. Genomic and epigenomic studies suggest that a subset of gallbladder cancers originate from biliary intraepithelial neoplasia (BilIN) precursor lesions, whereas others form independently from BilINs.

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Predicting Antigen-Specificities of Orphan T Cell Receptors from Cancer Patients with TCRpcDist.

Adv Sci (Weinh)

October 2024

Department of Oncology, Ludwig Institute for Cancer Research, Lausanne Branch, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Agora Cancer Research Center, Lausanne, CH-1005, Switzerland.

Approaches to analyze and cluster T-cell receptor (TCR) repertoires to reflect antigen specificity are critical for the diagnosis and prognosis of immune-related diseases and the development of personalized therapies. Sequence-based approaches showed success but remain restrictive, especially when the amount of experimental data used for the training is scarce. Structure-based approaches which represent powerful alternatives, notably to optimize TCRs affinity toward specific epitopes, show limitations for large-scale predictions.

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Aim Of The Study: Complementary and integrative medicine (CIM) has been increasingly recognized as offering promising treatment adjunctions in various clinical settings, even amongst patients with serious, chronic, or recurrent illness. Today, only few tertiary care facilities in Switzerland offer dedicated CIM services for inpatients. The aim of the present study was to evaluate whether CIM services for complex medical conditions are adequately valued by the national inpatient SwissDRG reimbursement system.

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Article Synopsis
  • - Guselkumab, an interleukin-23p19 subunit inhibitor, has shown significant improvements in clinical outcomes and patient-reported results in patients with moderate-to-severe psoriasis, emphasizing the need for personalized treatment approaches based on these factors.
  • - A post hoc analysis of the VOYAGE 1 trial revealed that 22.2% of patients maintained complete skin clearance for over three years, with this group showing lower baseline rates of obesity and depression, and a higher rate of non-smokers compared to those who did not maintain clearance.
  • - Despite achieving full skin clearance, some patients still reported quality-of-life impacts, particularly in the areas of symptoms and feelings, indicating that clinical measures alone may not fully capture the
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Brain aging patterns in a large and diverse cohort of 49,482 individuals.

Nat Med

October 2024

Artificial Intelligence in Biomedical Imaging Laboratory (AIBIL), Center for and Data Science for Integrated Diagnostics (AI2D), Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.

Article Synopsis
  • - The aging process of the brain is affected by lifestyle, environmental, genetic factors, and age-related diseases, with advanced imaging and AI techniques helping to reveal the complexities of neuroanatomical changes.
  • - A study involving nearly 50,000 participants identified five major patterns of brain atrophy, which are quantified using R-indices to analyze their connections to various biomedical, lifestyle, and genetic factors.
  • - These R-indices not only predict disease progression and mortality but also offer a new, nuanced framework for understanding brain aging, which may enhance personalized diagnostics and improve clinical trial strategies.
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Importance: Adjuvant ovarian function suppression (OFS) with oral endocrine therapy improves outcomes for premenopausal patients with hormone receptor-positive (HR+) breast cancer but adds adverse effects. A genomic biomarker for selecting patients most likely to benefit from OFS-based treatment is lacking.

Objective: To assess the predictive and prognostic performance of the Breast Cancer Index (BCI) for OFS benefit in premenopausal women with HR+ breast cancer.

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The impact of sex on the prognosis of patients with esophageal cancer remains unclear. Evidence supports that sex- based disparities in esophageal cancer survival could be attributed to sex- specific risk exposures, such as age at diagnosis, race, socioeconomic status, smoking, drinking, and histological type. The aim of our study is to investigate the role of sex disparities in survival of patients who underwent surgery for esophageal cancer.

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Background: Non-pharmaceutical interventions during the COVID-19 pandemic caused an unusual epidemiology in bronchiolitis hospitalisations, with a peak in the summer seasons of 2020 and 2021.

Aim: The aim of this study was to analyse data from a 5-year period (2018-2022) at Hôpital du Jura in Delémont, Switzerland, regarding bronchiolitis hospitalisations before, during and towards the end of the COVID-19 pandemic in order to prepare for future changes in bronchiolitis epidemiology.

Materials And Methods: Anonymous retrospective data on bronchiolitis hospitalisations for children under 2 years of age with hospital admission date from 1 January 2018 to 31 December 2022 was obtained from the Health Records Coding Unit of our hospital.

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Article Synopsis
  • Biliary fibrosis is a significant yet often overlooked aspect of liver and bile duct diseases, which can lead to serious health issues like organ failure.
  • Understanding the causes and development of biliary fibrosis is essential for improving prevention and treatment options for various biliary disorders.
  • The review highlights the clinical signs, demographics, and key cellular elements involved in biliary fibrosis, while also discussing crucial signaling pathways and future treatment strategies.
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Respiratory motion-corrected T1 mapping of the abdomen.

MAGMA

August 2024

Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany.

Objective: The purpose of this study was to investigate an approach for motion-corrected T1 mapping of the abdomen that allows for free breathing data acquisition with 100% scan efficiency.

Materials And Methods: Data were acquired using a continuous golden radial trajectory and multiple inversion pulses. For the correction of respiratory motion, motion estimation based on a surrogate was performed from the same data used for T1 mapping.

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  • The COVID-19 pandemic has severely impacted immunosuppressed individuals, such as solid organ transplant recipients and those undergoing cancer treatment, leading to worse health outcomes and higher mortality rates.
  • Due to challenges in studying these vulnerable populations, researchers created a mathematical model to simulate immune responses and analyzed virtual patient cohorts that mirrored clinical data from cancer and immunosuppressed patients.
  • The model revealed that severe cases in these groups exhibited reduced CD8+ T cells, delayed type I interferon peaks, and higher tissue damage, suggesting that immune dysfunction is a critical factor in COVID-19 severity for cancer patients.
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Increased central obesity correlates with physical activity and food processing in recently diagnosed multiple sclerosis.

Mult Scler Relat Disord

October 2024

Service of Endocrinology, Diabetology, Nutrition and Therapeutic Education, Department of Medicine, Geneva University Hospitals (HUG), Rue Gabrielle-Perret-Gentil 4, 1211 Geneva 14, Switzerland.; Diabetes Centre, Faculty of Medicine, University of Geneva, Rue Michel-Servet 1, 1211 Geneva 4, Switzerland. Electronic address:

Article Synopsis
  • Environmental and lifestyle factors, particularly metabolic syndrome, may worsen Multiple Sclerosis (MS) by increasing systemic inflammation, which impacts disease progression.
  • In a study involving 53 people with MS (PwMS) and 106 controls, it was found that PwMS had greater central obesity and lower levels of physical activity despite being matched for age, sex, and body mass index (BMI).
  • The research indicates that lifestyle modifications, like reducing processed food and increasing physical activity, could be important for improving health outcomes in individuals with MS.
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Synthetic mRNA produced by in vitro transcription (ivt mRNA) is the active pharmaceutical ingredient of approved anti-COVID-19 vaccines and of many drugs under development. Such synthetic mRNA typically contains several hundred bases of non-coding "untranslated" regions (UTRs) that are involved in the stabilization and translation of the mRNA. However, UTRs are often complex structures, which may complicate the entire production process.

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Correlates of chronic pain onset and recovery in the CoLaus cohort.

Eur J Pain

February 2025

Center for Integrative and Complementary Medicine, Department of Anesthesiology, Lausanne University Hospital (CHUV), The Sense and University of Lausanne, Lausanne, Switzerland.

Background: Only few previous cohort studies examined simultaneously predictors of chronic pain (CP) onset and recovery. Furthermore, these studies used various sociodemographic and pain-related characteristics, without standardized measures of sleep and depression. The present study aimed at expanding and strengthening these findings in a large Swiss population.

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Direct oral anticoagulants in cirrhosis: Rationale and current evidence.

JHEP Rep

August 2024

Hemostasis and Platelet Research Laboratory, Division of Hematology and Central Hematology Laboratory, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), CH-1010 Lausanne, Switzerland.

Cirrhosis is a major health concern worldwide with a complex pathophysiology affecting various biological systems, including all aspects of haemostasis. Bleeding risk is mainly driven by portal hypertension, but in end-stage liver disease it is further increased by alterations in haemostatic components, including platelet function, coagulation, and fibrinolysis. Concurrently, patients with cirrhosis are prone to venous thromboembolic events (VTE) because of the altered haemostatic balance, in particular an increase in thrombin generation.

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Evidence is growing that the individual adjustment of energy targets guided by indirect calorimetry (IC) can improve outcome. With the development of a new generation of devices that are easier to use and rapid, it appears important to share knowledge and expertise that may be used to individualize nutrition care. Despite the focus of this tutorial being on one contemporary device, the principles of IC apply across existing devices and can assist tailoring the nutrition prescription and in assessing response to nutrition therapy.

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Background: This study aimed to validate respiratory-resolved five-dimensional (5D) flow cardiovascular magnetic resonance (CMR) against real-time two-dimensional (2D) phase-contrast MRI, assess the impact of number of respiratory states, and measure the impact of respiration on hemodynamics in congenital heart disease (CHD) patients.

Methods: Respiratory-resolved 5D flow MRI-derived net and peak flow measurements were compared to real-time 2D phase-contrast MRI-derived measurements in 10 healthy volunteers. Pulmonary-to-systemic flow ratios (Qp:Qs) were measured in 19 CHD patients and aortopulmonary collateral burden was measured in 5 Fontan patients.

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