Prévalence et Facteurs de Risque Associés à la Lombalgie Commune chez le Personnel Soignant au Centre Hospitalier Universitaire de Brazzaville en 2021

Objectif: Déterminer la prévalence et les facteurs de risque  associés à la lombalgie commune chez le personnel soignant au CHU de Brazzaville. Patients et méthodes: Il s’agit d’une étude transversale, descriptive et analytique menée au CHUB, du1er mars au 1er octobre 2021(8 mois). Elle concernait le personnel de santé en poste depuis au moins 6 mois, ayant consenti de participer à l’étude. L’instrument d’étude était un questionnaire anonyme auto-administré comprenait  les données sociodémographiques, les caractéristiques cliniques, les facteurs de risques et thérapeutiques de la lombalgie commune. La saisie et l’analyse des données ont été effectuées par les logiciels Excel version 2010 et Sphinx version 5. Résultats: La prévalence de la lombalgie commune chez le personnel soignant était de 37,9%. Les femmes étaient prédominantes dans 75,7% de cas (n=84)) et un sex ration de 0,3en faveur des femmes. L’âge moyen était de 42,69+-9,77 ans (extrêmes de 20 et 65 ans). Les infirmiers étaient majoritaires avec 72,1%(n=80), suivis des chirurgiens (9,9%), des médecins (9%), des sages-femmes et des aides-soignants respectivement dans 8,1 et 0,9% des cas. Le principal facteur déclenchant était un effort de soulèvement (51,4%). Les principaux facteurs de risques associés à la lombalgie commune étaient le sexe féminin, la surcharge pondérale, la profession infirmière, l’ancienneté au travail, le geste et postures au travail, le sport apparaissait comme facteur protecteur. L’arrêt de travail était les principales mesures thérapeutiques professionnelles observées (44% des cas).  Conclusion: La lombalgie commune est un trouble musculo-squelettique très fréquent chez les personnel soignant. Plusieurs facteurs de risque individuels et professionnels  peuvent être à l’origine de la survenue et de la persistance de cette pathologie. Sa prévention repose sur une sensibilisation et une formation sur les gestes et postures.   Objective: To determine the prevalence and risk factors associated with common low back pain in nursing staff at the University Hospital of Brazzaville. Patients and methods: This was a cross-sectional, descriptive and analytical study conducted at the CHUB from March 1 to October 1, 2021 (8 months). It concerned health personnel who had been in post for at least 6 months and who had agreed to participate in the study. The study instrument was an anonymous self-administered questionnaire that included sociodemographic data, clinical characteristics, risk factors and treatments for common low back pain. Data entry and analysis were performed by Excel version 2010 and Sphinx version 5 software. Results: The prevalence of common low back pain among the nursing staff was 37.9%. Women were predominant in 75.7% of cases (n=84) and a sex ratio of 0.3 in favor of women. The mean age was 42.69+-9.77 years (extremes 20 and 65 years). Nurses were in the majority with 72.1% (n=80), followed by surgeons (9.9%), physicians (9%), midwives and orderlies in 8.1 and 0.9% of cases respectively. The main triggering factor was lifting effort (51.4%). The main risk factors associated with common low back pain were female gender, overweight, nursing profession, length of time at work, gestures and postures at work, and sport appeared to be a protective factor. Work stoppage was the main occupational therapeutic measure observed (44% of cases).  Conclusion : Common low back pain is a very frequent musculoskeletal disorder among healthcare workers. Several individual and professional risk factors may be responsible for the occurrence and persistence of this pathology. Its prevention is based on awareness and training on gestures and postures

Prévalence et Facteurs de Risque Associés à la Lombalgie Commune chez le Personnel Soignant au Centre Hospitalier Universitaire de Brazzaville en 2021

Objectif: Déterminer la prévalence et les facteurs de risque  associés à la lombalgie commune chez le personnel soignant au CHU de Brazzaville. Patients et méthodes: Il s’agit d’une étude transversale, descriptive et analytique menée au CHUB, du1er mars au 1er octobre 2021(8 mois). Elle concernait le personnel de santé en poste depuis au moins 6 mois, ayant consenti de participer à l’étude. L’instrument d’étude était un questionnaire anonyme auto-administré comprenait  les données sociodémographiques, les caractéristiques cliniques, les facteurs de risques et thérapeutiques de la lombalgie commune. La saisie et l’analyse des données ont été effectuées par les logiciels Excel version 2010 et Sphinx version 5. Résultats: La prévalence de la lombalgie commune chez le personnel soignant était de 37,9%. Les femmes étaient prédominantes dans 75,7% de cas (n=84)) et un sex ration de 0,3en faveur des femmes. L’âge moyen était de 42,69+-9,77 ans (extrêmes de 20 et 65 ans). Les infirmiers étaient majoritaires avec 72,1%(n=80), suivis des chirurgiens (9,9%), des médecins (9%), des sages-femmes et des aides-soignants respectivement dans 8,1 et 0,9% des cas. Le principal facteur déclenchant était un effort de soulèvement (51,4%). Les principaux facteurs de risques associés à la lombalgie commune étaient le sexe féminin, la surcharge pondérale, la profession infirmière, l’ancienneté au travail, le geste et postures au travail, le sport apparaissait comme facteur protecteur. L’arrêt de travail était les principales mesures thérapeutiques professionnelles observées (44% des cas).  Conclusion: La lombalgie commune est un trouble musculo-squelettique très fréquent chez les personnel soignant. Plusieurs facteurs de risque individuels et professionnels  peuvent être à l’origine de la survenue et de la persistance de cette pathologie. Sa prévention repose sur une sensibilisation et une formation sur les gestes et postures.   Objective: To determine the prevalence and risk factors associated with common low back pain in nursing staff at the University Hospital of Brazzaville. Patients and methods: This was a cross-sectional, descriptive and analytical study conducted at the CHUB from March 1 to October 1, 2021 (8 months). It concerned health personnel who had been in post for at least 6 months and who had agreed to participate in the study. The study instrument was an anonymous self-administered questionnaire that included sociodemographic data, clinical characteristics, risk factors and treatments for common low back pain. Data entry and analysis were performed by Excel version 2010 and Sphinx version 5 software. Results: The prevalence of common low back pain among the nursing staff was 37.9%. Women were predominant in 75.7% of cases (n=84) and a sex ratio of 0.3 in favor of women. The mean age was 42.69+-9.77 years (extremes 20 and 65 years). Nurses were in the majority with 72.1% (n=80), followed by surgeons (9.9%), physicians (9%), midwives and orderlies in 8.1 and 0.9% of cases respectively. The main triggering factor was lifting effort (51.4%). The main risk factors associated with common low back pain were female gender, overweight, nursing profession, length of time at work, gestures and postures at work, and sport appeared to be a protective factor. Work stoppage was the main occupational therapeutic measure observed (44% of cases).  Conclusion : Common low back pain is a very frequent musculoskeletal disorder among healthcare workers. Several individual and professional risk factors may be responsible for the occurrence and persistence of this pathology. Its prevention is based on awareness and training on gestures and postures

Prévalence et Facteurs de Risque Associés à la Lombalgie Commune chez le Personnel Soignant au Centre Hospitalier Universitaire de Brazzaville en 2021

Objectif: Déterminer la prévalence et les facteurs de risque  associés à la lombalgie commune chez le personnel soignant au Centre Hospitalier Universitaire  de Brazzaville (CHU-B). Patients et méthodes: Il s’agit d’une étude transversale, descriptive et analytique menée au CHU-B, du 1er mars au 1er octobre 2021(8 mois). Elle concernait le personnel de santé en poste depuis au moins 6 mois, ayant consenti de participer à l’étude. L’instrument d’étude était un questionnaire anonyme auto-administré et comprenant  les données sociodémographiques, les caractéristiques cliniques, les facteurs de risques et thérapeutiques de la lombalgie commune. La saisie et l’analyse des données ont été effectuées par les logiciels Excel version 2010 et Sphinx version 5.  Résultats: La prévalence de la lombalgie commune chez le personnel soignant était de 37,9%. Les femmes étaient prédominantes dans 75,7% de cas (n=84)), avec un sex ratio de 0,3 en faveur des femmes. L’âge moyen était de 42,69+-9,77 ans (extrêmes de 20 et 65 ans). Les infirmiers étaient majoritaires avec 72,1%(n=80), suivis des médecins chirurgiens (9,9%), des médecins (9%), des sages-femmes et des aides-soignants respectivement dans 8,1 et 0,9% des cas. Le principal facteur déclenchant était un effort de soulèvement (51,4%). Les principaux facteurs de risques associés à la lombalgie commune étaient le sexe féminin, la surcharge pondérale, la profession infirmière, l’ancienneté au travail, le geste et postures au travail, le sport apparaissait comme facteur protecteur. L’arrêt de travail était les principales mesures thérapeutiques professionnelles observées (44% des cas).  Conclusion: La lombalgie commune est un trouble musculo-squelettique très fréquent chez les personnel soignant. Plusieurs facteurs de risque individuels et professionnels  peuvent être à l’origine de la survenue et de la persistance de cette pathologie. Sa prévention repose sur une sensibilisation et une formation sur les gestes et postures.   Objective: Determining the prevalence and risk factors associated with common low back pain among nursing staff at the Brazzaville University Hospital Centre (CHU-B). Patients and methods: This was a cross-sectional, descriptive, and analytical study conducted at CHU-B from March 1 to October 1, 2021 (8 months). It concerned healthcare personnel who had been in post for at least 6 months and had consented to participate in the study. The study instrument was an anonymous self-administered questionnaire including socio-demographic data, clinical characteristics, risk, and therapeutic factors for common low back pain. Data entry and analysis were performed using Excel version 2010 and Sphinx version 5 software. Results: The prevalence of common low-back pain among nursing staff was 37.9%. Women predominated in 75.7% of cases (n=84), with a sex ratio of 0.3 in favor of women. The average age was 42.69+-9.77 (extremes 20 and 65). Nurses were in the majority with 72.1% (n=80), followed by surgical doctors (9.9%), physicians (9%), midwives, and orderlies in 8.1 and 0.9% of cases respectively. The main trigger was lifting effort (51.4%). The main risk factors associated with common low-back pain were female gender, overweight, nursing profession, seniority at work, gestures and postures at work, with sport appearing as a protective factor. The work stoppage was the main occupational therapeutic measure observed (44% of cases).  Conclusion: Common low-back pain is a very common musculoskeletal disorder among nursing staff. Several individual and occupational risk factors may be responsible for the onset and persistence of this pathology. Prevention is based on awareness-raising and training in gestures and postures

An alternating algorithm for Prompt Gamma Time Imaging with the TIARA project

International audienceIn hadrontherapy, the precise tracking of the hadron during treatment and the real-time determination of its different characteristics (prompt gamma positions, velocity profile and energy loss) is highly recommended to detect any change or mismatch between the treatment planning and the conditions present at the time of the treatment.To the best of our knowledge, there is currently no automatic method proposed to meet this need and promptly alert or halt the treatment if there is a risk of over-irradiating healthy tissues.In the present work, we present a mathematical measurement model and an alternating strategy that ensure a joint estimation of the different properties of the hadron (the prompt gamma positions and the velocity profile allow us to determine the energy loss) throughout the measured times of flight. Our proposition is based on convergence guarantees

An alternating algorithm for Prompt Gamma Time Imaging with the TIARA project

International audienceIn hadrontherapy, the precise tracking of the hadron during treatment and the real-time determination of its different characteristics (prompt gamma positions, velocity profile and energy loss) is highly recommended to detect any change or mismatch between the treatment planning and the conditions present at the time of the treatment.To the best of our knowledge, there is currently no automatic method proposed to meet this need and promptly alert or halt the treatment if there is a risk of over-irradiating healthy tissues.In the present work, we present a mathematical measurement model and an alternating strategy that ensure a joint estimation of the different properties of the hadron (the prompt gamma positions and the velocity profile allow us to determine the energy loss) throughout the measured times of flight. Our proposition is based on convergence guarantees

Large Area Polycrystalline Diamond Detectors for Online Hadron Therapy Beam Tagging Applications

International audienceThe MoniDiam project of the LPSC laboratory is part of the French national collaboration CLaRyS for the on-line monitoring of hadron therapy. It relies on the imaging of nuclear reaction products that is related to the ion range. The goal here is to provide large area detectors with a high detection efficiency for carbon or proton beams giving time and position measurement at count rates greater than 100 MHz (beam tagging hodoscope). High radiation hardness and intrinsic electronic properties make diamonds reliable and very fast detectors with a good signal to noise ratio. Commercial Chemical Vapor Deposited (CVD) diamonds were studied starting with plasma etch thinning and contact metallization done at the LPSC laboratory. Their applicability as particle detector was investigated using α and β radioactive sources, 95 MeV/u carbon beams and short-bunched 8.5 keV photons from the European Synchrotron Radiation Facility (ESRF). This facility offers unique capability of highly focused beams. The energy deposition is uniform in the irradiated detector volume. It permits us to mimic the interaction of single ion beams. A time resolution ranging from 20 ps up to 40 ps and an energy resolution ranging from 7 % up to 10% were measured. It permitted us to conclude that polycrystalline CVD diamond detectors are good candidates for our beam tagging hodoscope development. The final detector will consist in a ~15×15 cm2 mosaic arrangement of stripped diamond sensors read by a dedicated integrated fast read-out electronics (~1800 channels)

Etiquetage spatio-temporel et monitorage de faisceaux pulsés : applications en hadronthérapieet thérapies « flash »

National audienc

A new X-ray beam induced current setup, coupled with X-ray diffraction imaging, for diamonds and semiconductors characterization by synchrotron techniques at ESRF

International audienceWe developed a Time-Of-Flight (TOF) X-Ray Beam Induced Current (XBIC) setup on the BM05 beamline of the ESRF aiming at characterizing the electronic properties of the commercially available semiconductors. By recording 2-dimensionnal current maps, we are able to evaluate the homogeneity of response of the semiconductor to the X-ray beam excitation. Time resolution studies can be performed thanks to the synchronization of the response to the individual X-rays bunches. In addition, the availability of Bragg diffraction imaging on the same beamline provides the advantage of coupled measurements using both techniques. This paper presents the results obtained from several diamonds during the commissioning of the XBIC setup. A comparison with the results obtained with Bragg diffraction imaging and fluorescence maps is also shown and demonstrates that these techniques are complementary