Publications by authors named "Choquet C"

Introduction: Autism spectrum disorder (ASD) is characterised by difficulty with social communication and restricted, repetitive patterns of behaviour. This study aimed to improve understanding of the ASD patient experience with the treatment (bumetanide) regarding the changes in core symptoms and to assess changes considered as meaningful. To achieve this, qualitative interviews were conducted with caregivers of patients in two phase 3 clinical trials (NCT03715153; NCT03715166) of a novel ASD treatment.

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Cardiopharyngeal mesoderm contributes to the formation of the heart and head muscles. However, the mechanisms governing cardiopharyngeal mesoderm specification remain unclear. Here, we reproduce cardiopharyngeal mesoderm specification towards cardiac and skeletal muscle lineages with gastruloids from mouse embryonic stem cells.

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Objectives: We aimed to evaluate the impact of malaria declaration year (before or after 2017) on the frequency of hospitalization in metropolitan France of patients with uncomplicated non-vomiting P.falciparum malaria.

Patients And Methods: An observational, multicenter, retrospective study was carried out, using the database from the French National Reference Centre for Malaria.

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Background: Respiratory syncytial virus (RSV) is widely recognized as a cause of acute respiratory failure in infants and immunocompromised patients. However, RSV can also contribute to acute respiratory failure in adults, particularly among the elderly population. The objective of this study was to analyze the clinical characteristics and outcomes of immunocompetent adults hospitalized for RSV infection.

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Background: Electrocardiogram (ECG) is one of the most commonly performed examinations in emergency medicine. The literature suggests that one-third of ECG interpretations contain errors and can lead to clinical adverse outcomes. The purpose of this study was to assess the quality of real-time ECG interpretation by senior emergency physicians compared to cardiologists and an ECG expert.

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Background: In 2018, the French "Yellow Vest" social protest movement spread with weekly demonstrations resulting in confrontations between protesters and law enforcement. Non-lethal weapons, such as defensive bullet launchers (DBL) were used, and significant injuries have been reported through media, leading to public controversy regarding their use. These injuries are not well-known to civilian emergency physicians.

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Article Synopsis
  • The study aimed to evaluate the effectiveness of self-administered low-dose methoxyflurane on managing trauma pain in patients outside the emergency department during the COVID-19 pandemic at Bichat University Medical Center in Paris.
  • It involved two groups: a control group receiving standard pain management and an intervention group using methoxyflurane alongside standard treatments.
  • Results showed both groups reported lower pain levels over time, with the intervention group experiencing a greater reduction between specific time points, indicating methoxyflurane may enhance pain relief in similar patients.
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The ventricular conduction or His-Purkinje system (VCS) mediates the rapid propagation and precise delivery of electrical activity essential for the synchronization of heartbeats. Mutations in the transcription factor have been implicated in a high prevalence of developing ventricular conduction defects or arrhythmias with age. heterozygous mutant mice reproduce human phenotypes associated with a hypoplastic His-Purkinje system resulting from defective patterning of the Purkinje fiber network during development.

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Article Synopsis
  • - Validated clinical decision rules aimed at reducing unnecessary use of computed tomographic pulmonary angiography (CTPA) in emergency departments (EDs) for suspected pulmonary embolism (PE) were analyzed to observe changes in CTPA usage over time.
  • - A retrospective study across 26 European EDs examined nearly 9,000 CTPAs performed between January 2015 and December 2019, revealing significant increases in CTPA usage and diagnosed PEs, particularly among low-risk patients.
  • - The findings indicated a trend toward more frequent CTPA use and a higher diagnosis rate of PEs despite efforts to limit unnecessary imaging, highlighting the need for ongoing assessment of clinical decision rules in practice.
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  • The study evaluated the effectiveness of nasopharyngeal swabs compared to bronchoalveolar lavage (BAL) for detecting non-SARS-CoV-2 respiratory viruses in pneumonia patients during a retrospective analysis from 2012 to 2018 at a French hospital.
  • In a cohort of 276 patients, primary findings showed that nasopharyngeal swabs detected viruses in 34.4% of cases, while BAL detected them in 29.0%, revealing an overall agreement of 83.7% between the two methods.
  • The research concluded that while both testing methods are reliable, BAL may still be beneficial when nasopharyngeal swabs return negative results, especially for certain viruses like rhinovirus
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Article Synopsis
  • - The study aimed to compare the outcomes of patients infected with Omicron BA.1 and BA.2 who were treated with either sotrovimab or nirmatrelvir to prevent severe COVID-19.
  • - Of the 255 patients analyzed, nirmatrelvir resulted in faster negative PCR conversion (4 days) compared to sotrovimab (11.5 days), and a lower hospitalization rate was observed in nirmatrelvir-treated patients.
  • - The findings suggest that nirmatrelvir may lead to quicker viral clearance than sotrovimab in high-risk patients, potentially reducing the spread of the virus.
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Monoclonal antibodies (MAbs) targeting the Spike glycoprotein of SARS-CoV-2 is a key strategy to prevent severe COVID-19. Here, the efficacy of two monoclonal antibody bitherapies against SARS-CoV-2 was assessed on 92 patients at high risk of severe COVID-19 between March and October 2021 (Bichat-Claude Bernard Hospital, Paris, France). Nine patients died despite appropriate management.

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Objectives: A global outbreak of monkeypox virus infections in human beings has been described since April 2022. The objectives of this study were to describe the clinical characteristics and complications of patients with a monkeypox infection.

Methods: All consecutive patients with a polymerase chain reaction (PCR)-confirmed monkeypox infection seen in a French referral centre were included.

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Background: Elderly and frail patients who are unable to call for help in case of vital distress can develop complications during their hospitalization. As a supplement to clinical monitoring by the nursing staff, these patients can also be monitored in real time, with the Sensium E-health technology. An application notifies clinical staff of any change in their vital signs (heart rate, respiratory rate, temperature) outside of normal ranges, suggestive of physiological decline.

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Article Synopsis
  • The COVID-19 pandemic caused significant challenges for emergency departments (EDs), necessitating quick adaptations in their operations.
  • A study focused on 5 academic EDs in a hard-hit region of France explored how they identified suspected COVID-19 cases and implemented a triage system based on real-time infection rates.
  • The findings highlight hospitals' ability to reorganize and effectively manage resources during the crisis, providing insights that could help other EDs facing similar situations in the future.
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Objectives: We aimed to evaluate the effectiveness of a multifaceted procedure in improving pneumococcal and influenza vaccinations 6 months after an emergency department (ED) visit among patients aged 65 years and older.

Methods: We conducted a cluster-randomized, controlled, parallel-group, open-label implementation trial in 18 EDs in France and Monaco. Participants were recruited from November 2015 to September 2016.

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Background: Virus-associated respiratory infections are in the spotlight with the emergence of SARS-CoV-2 and the expanding use of multiplex PCR (mPCR). The impact of molecular testing as a point-of-care test (POCT) in the emergency department (ED) is still unclear.

Objectives: To compare the impact of a syndromic test performed in the ED as a POCT and in the central laboratory on length of stay (LOS), antibiotic use and single-room assignment.

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Background: Approximately 5000 cases of imported malaria are observed each year in metropolitan France. Guidelines for the prevention and management of imported malaria were published by the French infectious disease society (French acronym SPILF) in 2017.

Objective: Study objective was to describe in a retrospective analysis (2015-2016) imported malaria cases recorded in a Parisian hospital, to analyze the congruence to previous guidelines (2014), deviation in respect to post hoc published guidelines and potential areas for improvement.

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The rapid propagation of electrical activity through the ventricular conduction system (VCS) controls spatiotemporal contraction of the ventricles. Cardiac conduction defects or arrhythmias in humans are often associated with mutations in key cardiac transcription factors that have been shown to play important roles in VCS morphogenesis in mice. Understanding of the mechanisms of VCS development is thus crucial to decipher the etiology of conduction disturbances in adults.

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Background: Medical patients are on occasion admitted transiently to surgical wards when more appropriate wards are at capacity, potentially leading to suboptimal care. The aim of this study was to compare 6-month outcomes in older adults diagnosed with medical conditions in the ED then admitted inappropriately to surgical wards (defined as outliers), with outcomes in comparable patients admitted to medical wards (controls).

Methods: In a matched cohort study, 100 consecutive medical outliers from the ED aged 75 years and over were matched according to age, sex and diagnosis to 200 controls.

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Background: Vaccination is one of the most effective ways to fight the influenza epidemic and the coronavirus disease 2019 (COVID-19) pandemic, which represent a major public issue. The objective was to investigate the adherence of heads of French emergency departments (ED) and nursing departments on a potential vaccination campaign of healthcare workers (HCW) and patients in ED.

Method: In February 2021, ED and nursing department heads were asked to answer a national survey.

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Objectives: Our work assessed the prevalence of co-infections in patients with SARS-CoV-2.

Methods: All patients hospitalized in a Parisian hospital during the first wave of COVID-19 were tested by multiplex PCR if they presented ILI symptoms.

Results: A total of 806 patients (21%) were positive for SARS-CoV-2, 755 (20%) were positive for other respiratory viruses.

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