📇 Rhumatologue · PARIS CEDEX 15 · (75) · Hospitalier

M LAURENT BELEC

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4 raisons identifiées

Plateau technique de référence
Assistance publique – Hôpitaux de Paris (APHP) — équipements et expertise pointus pour les cas complexes
Auteur de référence en rhumatologie
28 articles scientifiques publiés — un praticien à la pointe de la recherche
Encadrant universitaire
Forme la prochaine génération de rhumatologues (6 thèses dirigées)
Délais de RDV courts dans la région
336.2 rhumatos / 100 000 hab. — département bien doté

Rhumatologue

📍 PARIS CEDEX 15 (75)HospitalierRPPS 10000459916

Enseignement

📊 Reconnaissance scientifique : 49/100📝 363 articles publiés🇫🇷 Publications académiques françaises (8)🎓 6 thèses dirigées

✨ Génération du profil synthétique IA en cours…

Données ANS publiques (Licence Ouverte 2.0) · Enrichissements MonRhumato 100 % opt-in · Toute personne référencée peut demander la suppression ou la rectification.

Top publications · les plus citées

Highly Sensitive Quantification of Plasma Severe Acute Respiratory Syndrome Coronavirus 2 RNA Sheds Light on its Potential Clinical Value

Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021

📚 85 citations🎯 RCR 5.16Top 7% NIH🔓 Open Access📄 PDF gratuit ↗

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Abstract Background Coronavirus disease 2019 (COVID-19) is a global public health problem that has already caused more than 662 000 deaths worldwide. Although the clinical manifestations of COVID-19 are dominated by respiratory symptoms, some patients present other severe damage such as cardiovascular, renal and liver injury, and/or multiple organ failure, suggesting a spread of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in blood. Recent ultrasensitive polymerase chain reaction (PCR) technology now allows absolute quantification of nucleic acids in plasma. We intend to use the droplet-based digital PCR technology to obtain sensitive detection and precise quantification of plasma SARS-CoV-2 viral load (SARS-CoV-2 RNAemia) in hospitalized COVID-19 patients. Methods Fifty-eight consecutive COVID-19 patients with pneumonia 8 to 12 days after onset of symptoms and 12 healthy controls were analyzed. Disease severity was categorized as mild to moderate in 17 patients, severe in 16, and critical in 26. Plasma SARS-CoV-2 RNAemia was quantified by droplet digital Crystal Digital PCR next-generation technology (Stilla Technologies, Villejuif, France). Results Overall, SARS-CoV-2 RNAemia was detected in 43 (74.1%) patients. Prevalence of positive SARS-CoV-2 RNAemia correlated with disease severity, ranging from 53% in mild-to-moderate patients to 88% in critically ill patients (P = .036). Levels of SARS-CoV-2 RNAemia were associated with severity (P = .035). Among 9 patients who experienced clinical deterioration during follow-up, 8 had positive SARS-CoV-2 RNAemia at baseline, whereas only 1 critical patient with undetectable SARS-CoV-2 RNAemia at the time of analysis died at day 27. Conclusion SARS-CoV-2 RNAemia measured by droplet-based digital PCR constitutes a promising prognosis biomarker in COVID-19 patients.

Usefulness of Plasma SARS-CoV-2 RNA Quantification by Droplet-based Digital PCR to Monitor Treatment Against COVID-19 in a B-cell Lymphoma Patient

Stem cell reviews and reports · 2021

📚 19 citations🔓 Open Access📄 PDF gratuit ↗

Comparison of practicability and effectiveness between unassisted HIV self-testing and directly assisted HIV self-testing in the Democratic Republic of the Congo: a randomized feasibility trial

BMC infectious diseases · 2020

📚 15 citations🎯 RCR 1.16🩺 Clinique🔓 Open Access📄 PDF gratuit ↗

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Abstract Background HIV self-testing (HIVST) can be performed using directly assisted and unassisted approaches in facilities or communities to reach different populations. The aim of this study was to compare the practicability and effectiveness of the two delivery approaches for HIVST, unassisted HIVST (UH) and directly assisted HIVST (DAH), in the field setting of Kisangani, the Democratic Republic of the Congo (DRC). Methods A randomized (1:1), non-blinded, non-inferiority trial using a blood-based and facility-based HIVST method was carried out in four facilities in Kisangani, the DRC, targeting populations at high risk for HIV infection. The primary outcome was the difference in the practicability of the HIV self-test between the two arms. Practicability was defined as successfully performing the test and correctly interpreting the result. Requests for assistance, positivity rate, linkage to care, and willingness to buy an HIV self-test kit constituted the secondary outcomes for HIVST effectiveness. The adjusted risk ratios (aRRs) were calculated using Poisson regression. Results The rate of successfully performing the test was same (93.2%) in the UH and DAH arms. The rate of correctly interpreting the results was 86.9% in the UH arm versus 93.2% in the DAH arm, for a difference of − 6.3%. After the follow-up 72 h later, participants in the UH arm had a significantly lower chance of correctly interpreting the test results than those in the DAH arm (aRR: 0.60; P = 0.019). Although the positivity rate was 3.4% among the participants in the DAH arm and 1.7% among those in the UH arm, no significant differences were found between the two arms in the positivity rate, requests for assistance, and linkage to care. Willingness to buy an HIV self-test was higher in the UH arm than in the DAH arm (92.3% versus 74.1%; aRR: 4.20; P < 0.001). Conclusion The results of this study indicate that UH is as practicable and effective as DAH among individuals at high risk for HIV infection in Kisangani, the DRC. However, additional support tools need to be assessed to improve the interpretation of the self-test results when using the UH approach. Trial registration PACTR201904546865585. Registered 03 April 2019 - Retrospectively registered, https://pactr.samrc.ac.za/TrialDisplay.aspx?TrialID=6032

Cookies & analyse de trafic

M LAURENT BELEC

Pourquoi vous devez consulter ce praticien

Direction de thèses

Activité de recherche & publications

Publications académiques en France

Lieu de consultation

Tarifs & secteur de conventionnement

Prendre rendez-vous & contact

Top publications · les plus citées

Publications scientifiques (28) — classées par pathologie

Transversal14

Épidémiologie & registres5

Biomarqueurs / Auto-Ac3

Revue générale2

Biothérapies non-anti-TNF1

Économie santé1

Essai clinique1

Génétique1

Pédiatrie1

Vraie vie / RWE1

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