Bioethics after the COVID-19 pandemic: More research, fewer committees?

In the face of the pandemic, , once again, proved its scientific utility. In France, in particular, the academic approach (= peer-reviewed, scientific publications, etc.) should be given priority over the institutional approach (= public surveys, public meetings, etc.

Mechanical Performance Assessment of Physician Modified Aortic Stent Graft.

Objective: This study aimed to compare various fenestration configurations of physician modified aortic stent grafts in order to identify which design parameters have a significant influence on the mechanical behaviour of the fenestration.

Methods: the fenestration configurations were considered according to different manufacturing parameters: cutting technique, fenestration reinforcement, suture material, reinforcement loop design, and number of suture points. The performance of the graft/bridging stent assembly was assessed at various levels: (1) branch pull out force; (2) fenestration enlargement and rupture strength; (3) balloon angioplasty resistance; and (4) behaviour under cyclic fatigue.

Analysis of Predictive Factors for Successful Vascular Anastomoses in a Sheep Uterine Transplantation Model.

Uterine transplantation is becoming an increasingly realistic therapeutic for uterine infertility. Surgical training on large animal models such as sheep is a prerequisite for establishing a program in humans. The objective of our study was to analyze the predictive factors for successful vascular anastomoses.

Bio-ethical issues in oncology during the first wave of the COVID-19 epidemic: A qualitative study in a French hospital.

Background: Using a specific bioethical theory (=global bioethics) and method (=a posteriori), we try here to identify and evaluate the bio-ethical issues raised by the COVID-19 pandemic, and possible solutions, to improve the management of cancer patients at the hospital in future pandemics, before the emergence of vaccines or scientifically validated treatments.

Materials & Methods: Our work is based primarily on the clinical experience of three oncologists from the oncology department of Foch Hospital in France, who were on the frontline during the first wave of the epidemic. We compared their perceptions with published findings, to complete or nuance their views.

Parenchymal Hemorrhage Rate Is Associated with Time to Reperfusion and Outcome.

Objective: Despite a 90% reperfusion rate, only 50% of patients with anterior circulation large vessel occlusion-related acute ischemic stroke (LVO-AIS) have a functional recovery at 3 months. Parenchymal hematoma (PH) is a predictor of poor outcome after endovascular treatment (EVT). We aim to investigate the relationship between the delay from onset to reperfusion, the occurrence of PH, and functional outcome.

From a voluntary vaccination policy to mandatory vaccination against COVID-19 in cancer patients: an empirical and interdisciplinary study in bioethics.

Background: At the start of 2021, oncologists lacked the necessary scientific knowledge to adapt their clinical practices optimally when faced with cancer patients refusing or reluctant to be vaccinated against COVID-19, despite the marked vulnerability of these patients to severe, and even fatal forms of this new viral infectious disease. Oncologists at Foch Hospital were confronted with this phenomenon, which was observed worldwide, in both the general population and the population of cancer patients.

Methods: Between April and November 2021, the Ethics and Oncology Departments of Foch Hospital decided to investigate this subject, through an empirical and interdisciplinary study in bioethics.

International Recommendations to Manage Poststroke Equinovarus Foot Deformity Validated by a Panel of Experts Using Delphi.

Objective: To establish international recommendations for the management of spastic equinovarus foot deformity.

Design: Delphi method.

Setting: International study.

Contamination and carryover free handling of complex fluids using lubricant-infused pipette tips.

Cross-contamination of biological samples during handling and preparation, is a major issue in laboratory setups, leading to false-positives or false-negatives. Sample carryover residue in pipette tips contributes greatly to this issue. Most pipette tips on the market are manufactured with hydrophobic polymers that are able to repel high surface tension liquids, yet they lack in performance when low surface tension liquids and viscous fluids are involved.

A 6-Month Home-Based Functional Electrical Stimulation Program for Foot Drop in a Post-Stroke Patient: Considerations on a Time Course Analysis of Walking Performance.

Foot drop is a common disability in post-stroke patients and represents a challenge for the clinician. To date, ankle foot orthosis (AFO) combined with conventional rehabilitation is the gold standard of rehabilitation management. AFO has a palliative mechanical action without actively restoring the associated neural function.

Early-onset neonatal sepsis in the Paris area: a population-based surveillance study from 2019 to 2021.

Background: Early-onset neonatal sepsis (EOS) is a rare condition but an important cause of severe morbidity and mortality in neonates.

Methods: This is a prospective observational study in neonates born at ≥34 weeks of gestation (WG). The primary endpoint was EOS, defined by isolation of pathogenic species from blood culture and/or cerebrospinal fluid culture within 72 hours after birth.

General anesthesia or conscious sedation for endovascular therapy of basilar artery occlusions: ETIS registry results.

Background And Purpose: Acute basilar artery occlusions (BAO) are associated with poor outcome despite modern endovascular treatment (EVT). The best anesthetic management during EVT is not known and may affect the procedure and clinical outcome. We compared the efficacy and safety of general anesthesia (GA) and conscious sedation/local anesthesia (CS/LA) in a large cohort of stroke patients with BAO treated with EVT in current clinical practice.

Validation of a liquid chromatography coupled to tandem mass spectrometry method for simultaneous quantification of tryptophan and 10 key metabolites of the kynurenine pathway in plasma and urine: Application to a cohort of acute kidney injury patients.

A sensitive and rapid liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the simultaneous determination of tryptophan (Trp) and ten metabolites of kynurenine pathway, including kynurenine (Kyn), 3-hydroxy-kynurenine (3-HK), kynurenic acid (KA), xanthurenic acid (XA), 3-Hydroxy-anthranilic acid (3-HANA), quinolinic acid (QA), nicotinic acid mononucleotide (NaMN), picolinic acid (Pic), nicotinamide (NAM) and nicotinic acid (NA) in both plasma and urine. This LC-MS/MS method was used to predict the occurrence of acute kidney injury (AKI) in a cohort of patients with cardiac surgery under cardiopulmonary bypass (CPB). Urinary concentrations of Pic, as well as Pic to Trp and Pic to 3-HANA ratios were highly predictive of an AKI episode the week after CPB, indicating that Pic could be a predictive biomarker of AKI.

Thrombosis of Medium-Sized and Large Arteries During Covid-19 Infection: Results of the COVIVASC Study.

Background: COVID-19 infection is associated not only with venous thromboses but also with arterial thromboses (COV-ATs) in relation with an endothelial dysfunction, a coagulopathy and rhythm disorders. The incidence, the topography, and the prognosis of COV-ATs remain poorly known. The objective of this study was to report the overall experience of the Greater Paris University Hospitals (Assistance Publique - Hopitaux de Paris, AP-HP) during the first pandemic wave of COVID-19 infection.

Qualitative analysis of the organisational response of a university hospital during the first wave of the COVID-19 crisis.

Background: The COVID-19 pandemic has required urgent organisational and managerial adaptation, with hospital medical and administrative leaders under considerable pressure.

Methods: At a single French university hospital, we performed a sociological analysis of management adaptation by medical and administrative leaders during the first wave of the COVID-19 crisis. Two sociologists performed interviews with representative members of staff from all the structures involved in managing the crisis to analyse adaptation and the solutions found during this period.

Molecular Spectrum in a French Cohort with Primary Dyslipidemia.

Primary hypercholesterolemia is characterized by elevated LDL-cholesterol (LDL-C) levels isolated in autosomal dominant hypercholesterolemia (ADH) or associated with elevated triglyceride levels in familial combined hyperlipidemia (FCHL). Rare variants are known in ADH and FCHL. We explored the molecular spectrum in a French ADH/FCHL cohort of 5743 unrelated probands.

Cancer and COVID-19: ethical issues concerning the use of telemedicine during the pandemic.

The lockdown imposed in France during the first wave of the COVID-19 pandemic wreaked havoc with access to healthcare. From March 2020 onwards, the oncologists of Foch Hospital, like many others at hospitals throughout the world, were obliged to adapt to the new conditions, including, in particular, the impossibility of seeing patients in classic consultations for the diagnosis and treatment of cancer. Patients with cancer are particularly susceptible to this new virus, due to their immune status, and this made it difficult to carry out standard hospital visits for these patients.