876 results match your criteria: "Claude-Bernard Lyon-1 University[Affiliation]"

What is the best fixation method in medial patellofemoral ligament reconstruction? A biomechanical comparison of common methods for femoral graft attachment.

SICOT J

February 2024

Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 69004, Lyon, France - LIBM - EA 7424, Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University, Lyon, France.

Introduction: A variety of techniques have been described for femoral fixation in medial patellofemoral ligament reconstruction (MPFLr). The aim of this study was to compare the biomechanical performance of the most used methods for graft fixation in the femur using human cadaveric tissue. We wondered what is the best fixation method for femoral fixation in MPFL reconstruction?

Hypothesis: A suspensory fixation device provides the best femoral fixation.

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Neurological patients confronting climate change: A potential role for the glymphatic system and sleep.

J Neurol Sci

March 2024

Department of Neurology, School of Medicine, Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, USA.

Interest in the health consequences of climate change (global warming, heatwaves) has increased in the neurological community. This review addresses the impact of elevated ambient temperatures and heatwaves on patients with neurological and mental health disorders, including multiple sclerosis, synucleinopathies, dementia, epilepsies, mental health, and stroke. Patients with such conditions are highly vulnerable during heatwaves because of functional disorders affecting sleep, thermoregulation, autonomic system reactivity, mood, and cognitive ability.

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Purpose: One of the most pertinent questions in total knee arthroplasty (TKA) is: what could be considered normal coronal alignment? This study aims to define normal, neutral, deviant and aberrant coronal alignment using large data from a computed tomography (CT)-scan database and previously published phenotypes.

Methods: Coronal alignment parameters from 11,191 knee osteoarthritis (OA) patients were measured based on three dimensional reconstructed CT data using a validated planning software. Based on these measurements, patients' coronal alignment was phenotyped according to the functional knee phenotype concept.

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Background: Organizational factors may influence surgical outcomes, regardless of extensively studied factors such as patient preoperative risk and surgical complexity. This study was designed to explore how operating room organization determines surgical performance and to identify gaps in the literature that necessitate further investigation.

Methods: We conducted a systematic review according to PRISMA guidelines to identify original studies in Pubmed and Scopus from January 1, 2000 to December 31, 2019.

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Bile acids (BA) are key for liver regeneration and injury. This study aims at analyzing the changes in the BA pool induced by ischemia-reperfusion (IRI) and investigates the impact of hypothermic oxygenated perfusion (HOPE) on the BA pool compared to static cold storage (SCS). In a porcine model of IRI, liver grafts underwent 30 min of asystolic warm ischemia followed by 6 h of SCS (n = 6) ± 2 h of HOPE (n = 6) and 2 h of ex-situ warm reperfusion.

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Prior medial meniscus arthroscopy is not associated with worst functional outcomes in patients undergoing primary total knee arthroplasty: A retrospective single-center study with a minimum follow-up of 5 years.

SICOT J

January 2024

Orthopaedic Surgery and Sports Medicine Department, Croix-Rousse Hospital, University Hospital, 69004 Lyon, France - LIBM - EA 7424, Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University, 69622 Lyon, France.

Introduction: There have been controversial studies on the impact of prior knee arthroscopy (KA) on outcomes of total knee arthroplasty (TKA). The purpose of this comparative study is to investigate the impact of prior KA of medial meniscus on patients undergoing TKA by evaluating the International Knee Society Score (IKS), the complications, and revisions.

Methods: This retrospective study reviewed 84 patients with TKA who had undergone prior KA of the medial meniscus and compared them to 84 cases, without a history of prior KA as a control group.

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Objectives: In head and neck squamous cell carcinoma (HNSCC), PD-1/PD-L1 inhibitors remain inefficient in most patients, which points to the need for better characterization of immune checkpoint (ICP) molecule expression.

Material And Methods: We evaluated the expression of 22 ICP ligands (ICPL) in 2,176 malignant cells from 10 patients in a public single-cell RNA-sequencing dataset and in two cohorts of HNSCC patients for which gene expression data are available.

Results: Based on ICPL expression, malignant cells formed three distinct clusters characterized either by a strong expression of ICPL together with an immune phenotype linked to IFN-γ response (cluster 1) or by a weak ICPL expression and little response to IFN-γ (clusters 2 and 3).

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Background And Aims: Implantable cardioverter-defibrillators (ICDs) are critical for preventing sudden cardiac death (SCD) in arrhythmogenic right ventricular cardiomyopathy (ARVC). This study aims to identify cross-continental differences in utilization of primary prevention ICDs and survival free from sustained ventricular arrhythmia (VA) in ARVC.

Methods: This was a retrospective analysis of ARVC patients without prior VA enrolled in clinical registries from 11 countries throughout Europe and North America.

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Adapting hip arthroplasty practices during the COVID-19 pandemic: Assessing the impact of outpatient care sudden increase on early complications and clinical outcomes.

SICOT J

January 2024

Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Centre of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France - Division of Surgery and Interventional Science, University College London, Gower Street, London WC1E 6BT, UK.

Article Synopsis
  • - The study evaluated how the COVID-19 pandemic impacted total hip replacement (THR) surgeries, showing a 14% increase in surgeries performed post-pandemic, with a notable shift toward outpatient care.
  • - Outpatient management rose dramatically from 0.5% to 29.6%, while the average length of stay (LOS) for patients dropped from 2.7 days to 1.4 days; discharges to rehabilitation centers also decreased markedly.
  • - Despite these changes, readmission rates remained stable at 1.4%, and early clinical outcomes, including satisfaction levels, did not show significant differences between pre-pandemic and post-pandemic patients.
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Background: Following a traumatic event, 40-80% of the patients with acute stress disorder (ASD) will develop post-traumatic stress disorder (PTSD), 67% at 6 months. Alpha1-blockers are effective in treating some symptoms of PTSD but their usefulness in acute stress situations remains unclear. We hypothesized that reducing noradrenergic hyperactivity with an alpha1-blocker during the acute phase after a traumatic event could prevent the transition to PTSD in patients with ASD.

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Pasireotide: potential treatment option for McCune-Albright-associated acromegaly.

Eur J Endocrinol

January 2024

Endocrinology Department, Reference Center for Rare Pituitary Diseases HYPO, "Groupement Hospitalier Est" Hospices Civils de Lyon, 69500 Bron, France.

Only 30% of patients with McCune-Albright syndrome (MAS)-associated acromegaly achieve biochemical control under first-generation somatostatin receptor ligands (fg-SRLs), while pegvisomant fails to normalize insulin-like growth factor 1 (IGF-I) in >20% of cases. Here, we report all the patients with MAS-associated acromegaly treated with pasireotide long-acting release (LAR) in our center. Pasireotide LAR 20 mg/month resulted in rapid and long-term IGF-I normalization in patients #1 and #3.

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Relationship among α‑synuclein, aging and inflammation in Parkinson's disease (Review).

Exp Ther Med

January 2024

Department of Pathology, College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China.

Parkinson's disease (PD) is a common neurodegenerative pathology whose major clinical symptoms are movement disorders. The main pathological characteristics of PD are the selective death of dopaminergic (DA) neurons in the pars compacta of the substantia nigra and the presence of Lewy bodies containing α-synuclein (α-Syn) within these neurons. PD is associated with numerous risk factors, including environmental factors, genetic mutations and aging.

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Purpose: The interim analysis of the phase IIIb LUCY trial demonstrated the clinical effectiveness of olaparib in patients with germline BRCA-mutated (gBRCAm), human epidermal growth factor receptor 2 (HER2)-negative metastatic breast cancer (mBC), with median progression-free survival (PFS) of 8.11 months, which was similar to that in the olaparib arm of the phase III OlympiAD trial (7.03 months).

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Context: Patients with primary (PAI) and secondary adrenal insufficiency (SAI) experience bone metabolism alterations, possibly due to excessive replacement. Dual-release hydrocortisone (DR-HC) has shown promising effects on several parameters, but bone metabolism has seldom been investigated.

Objective: We evaluated the long-term effects of once-daily DR-HC on bone in PAI and SAI.

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Functional and clinical characterization of a novel homozygous KCNH2 missense variant in the pore region of Kv11.1 leading to a viable but severe long-QT syndrome.

Gene

March 2024

National Reference Center for Inherited Arrhythmias of Lyon, Department of Cardiac Electrophysiology, Louis Pradel Hospital, Hospices Civils de Lyon, Lyon, France; University of Lyon, Claude Bernard Lyon 1 University, MeLiS, CNRS UMR 5284, INSERM U1314, Institut NeuroMyoGène, Lyon 69008, France. Electronic address:

Article Synopsis
  • The study identifies a novel homozygous missense variant (p.Gly603Ser) in the KCNH2 gene linked to severe long-QT syndrome (LQTS) in a family context.
  • The research employs functional analysis using Xenopus oocytes to compare the effects of this variant with the wild-type version of the gene, revealing significant differences in electrical properties.
  • The findings suggest that while this variant leads to severe yet survivable LQTS in homozygous individuals, it causes a milder Type 2 LQTS in heterozygous carriers, marking a unique discovery in the genetic understanding of heart rhythm disorders.
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Purpose: The aims of the study were to evaluate the performance and robustness of [F]fluorocholine PET/CT in detecting hyperfunctioning parathyroid glands in MEN1-related primary hyperparathyroidism (pHPT) at different stages of their disease.

Methods: Retrospective French multicenter study including patients with MEN1 pHPT who underwent [F]fluorocholine PET/CT at initial diagnosis or for evaluation of persistent/recurrent disease. PET/CT were independently reviewed by two readers in a blinded manner.

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Septic non-union in long-bone fractures represents a challenging clinical entity. Management of lower extremity segmental bone defects, aiming to restore functional anatomy, remains extremely difficult and controversial. Masquelet technique is a reconstruction method for large diaphyseal bone defects, based on the notion of the induced membrane.

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Rationale: Kimura's disease (KD) is a rare and chronic eosinophilic related-disease, characterized by subcutaneous tissue masses, regional enlarged lymph nodes, hypereosinophilia and elevated serum IgE. KD usually affects young adults in the Asian population. In Western countries, the clinical and biological presentation of KD is often unknown, delaying the diagnosis.

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Article Synopsis
  • * Out of 89 participants, the treatment achieved a complete metabolic response (CMR) in 77.5% of cases after 6 cycles, with a tolerance for side effects, as 88% completed the regimen despite a 20% rate of serious adverse events.
  • * In long-term follow-up (median 42 months), the 4-year progression-free survival rate was 50% and overall survival 69%, with factors like liver involvement and lymphopenia affecting outcomes.
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CDK4 phosphorylation status and rational use for combining CDK4/6 and BRAF/MEK inhibition in advanced thyroid carcinomas.

Front Endocrinol (Lausanne)

February 2024

Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium.

Background: CDK4/6 inhibitors (CDK4/6i) have been established as standard treatment against advanced Estrogen Receptor-positive breast cancers. These drugs are being tested against several cancers, including in combinations with other therapies. We identified the T172-phosphorylation of CDK4 as the step determining its activity, retinoblastoma protein (RB) inactivation, cell cycle commitment and sensitivity to CDK4/6i.

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A new approach for cognitive impairment pattern in chronic kidney disease.

Nephrol Dial Transplant

April 2024

Center for Research in Epidemiology and Population Health (CESP), Clinical Epidemiology Team, Paris-Saclay University, Versailles Saint-Quentin-en-Yvelines University, Inserm, Villejuif, France.

Background: Chronic kidney disease (CKD) is associated with an elevated risk of neurocognitive disorders (NCDs). It remains unclear whether CKD-related NCDs have a specific cognitive pattern or are earlier-onset phenotypes of the main NCDs (vascular NCDs and Alzheimer's disease).

Methods: We used the Mini Mental State Examination score (MMSE) to assess cognitive patterns in 3003 CKD patients (stage 3-4) followed up over 5 years in the Chronic Kidney Disease-Renal Epidemiology and Information Network (CKD-REIN) cohort.

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Background: The practice of self-medication is common but not without risk, especially for vulnerable populations such as the pediatric population. Community pharmacists have an important role of vigilance in dispensing drugs available without a medical prescription, with the possibility of carrying out a Pharmaceutical Intervention (PI) if necessary. The aim of our study was to characterize the Pediatric Pharmaceutical Interventions (PPIs) in self-medication carried out during a spontaneous request for a drug at the community pharmacy.

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Long-term efficacy of intrastromal voriconazole injections in recalcitrant deep fungal keratitis: Case series.

J Fr Ophtalmol

May 2024

Department of Ophthalmology, hôpital Édouard-Herriot, hospices civils de Lyon, 5, place d'Arsonval, 69003 Lyon, France.

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Societal concern about climate change and global warming has grown worldwide along with the concomitant awareness that health will be impacted deeply. Among living beings, humans have quite large capacities for adaptation to varied temperature conditions. Despite their tropical origin, they live under all Earth climates, such as polar, temperate, altitude, arid, and tropical climates, using a wide range of behavioral and physiological adaptive responses.

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