37 research outputs found
Ătude de lâĂ©puration pulmonaire chez lâhomme aprĂšs administration dâaĂ©rosols de particules radioactives
A lâoccasion de bilans fonctionnels respiratoires, lâĂ©tude de lâĂ©puration du poumon profond a Ă©tĂ© effectuĂ©e sur deux groupes de sujets, composĂ©s, lâun, de 20 sujets normaux, lâautre, de 18 sujets atteints pour la plupart dâaffections diverses : sarcoĂŻdose, tuberculose, bronchite chronique, et pneumoconiose. Chaque groupe comprend des sujets fumeurs et non fumeurs. Le produit administrĂ© sous forme dâaĂ©rosol est pour le premier de lâor 198, pour le deuxiĂšme des billes de polystyrĂšne marquĂ©es au chrome 51. Les mesures effectuĂ©es Ă lâaide dâune installation de spectromĂ©trie gamma pour lâensemble du corps, Ă bas niveau dâactivitĂ©, ont Ă©tĂ© conduites pendant plusieurs semaines ou plusieurs mois. Les courbes de rĂ©tention sont dâallure exponentielle, et les pĂ©riodes calculĂ©es sont comparĂ©es Ă diverses donnĂ©es : Ăąge, sexe, profession, consommation de tabac, Ă©preuves spiromĂ©triques, Ă©tiologie dans le cas des malades. La pĂ©riode biologique normale est voisine de 68 jours : elle est augmentĂ©e de façon significative par la consommation de tabac : elle est allongĂ©e Ă©galement dans les Ă©tats pathologiques considĂ©rĂ©s, exceptĂ© dans la sarcoĂŻdos
Radiopathologie
C'est dans une perspective clinique que les auteurs analysent les principales questions relatives à la radiopathologie, branche des sciences médicales qui étudie les lésions induites par les rayonnements, en vue essentiellement du diagnostic et du traitement. AprÚs avoir évoqué la question de la radiosensibilité et le problÚme des risques consentis en pratique médicale, ils analysent les cas relatifs aux accidents aigus locaux, à l'irradiation globale aiguë, aux modifications tardives provoquées par les rayonnements et aux contaminations interne et externe
Définition du Néolithique Moyen Bourguignon du Jura (4200-3600 av. J.-C.). Premiers résultats
National audienc
Effect of intra-articular Botulinum toxin injections on temporo-mandibular joint pain
International audienceTemporo-mandibular joint dysfunction can be painful and disabling. In some cases, it is refractory to classical treatment. Intra-articular Botulinum toxin injections have been shown to have an anti-inflammatory and analgesic effect. The aim of this study was to evaluate the effectiveness of such injections on severe, refractory temporo-mandibular joint pain. This was a retrospective study. Patients were included if they still had joint painâ„5 on a Visual Analogue Scale following completion of all other treatments. A complete treatment protocol (including physiotherapy, tongue splints, intra muscular injections of Botulinum toxin and injections of hyaluronic acid, excluding surgery) having being done before the injection of 30 Botox* units (Botulinum toxin A), the treatment being considered clinically successful if the Visual Analogue Scale decreases by at least 2 points. Seventy-seven patients were included. Sixty-six percent of patients have a significant reduction in pain at 1 month which lasted at least until 3 months. Mouth opening and quality of life also improved. Moreover, no complications were reported. Further randomized, controlled studies are needed to confirm the results, however this study suggests intra-articular injection of Botulinum toxin is a safe and effective treatment for severe, refractory temporo-mandibular joint pain, avoiding surgery
Dysfonction de lâappareil manducateur : approches rĂ©Ă©ducative et posturale
International audienceRehabilitation of temporomandibular joint dysfunctions has for a long time tried to treat symptoms: pain relief, joint kinetics restoration, disk re-capture by manual maneuvers. The authors present their own therapeutic approach, which is no longer limited to symptoms, but addresses the causes and identifies risk factors to prevent relapse
Etude prospective de la symptomatologie clinique précoce aprÚs irradiation corporelle totale thérapeutique de 2 Gy
La tolérance humaine précoce d'une irradiation corporelle totale (ICT) en fonction de la dose reçue n'est principalement connue que par le biais d'études rétrospectives. Nous avons étudié de maniÚre prospective la Symptomatologie clinique de 13 patients bénéficiant d'une ICT à visée thérapeutique, dans le cadre d'un conditionnement avant greffe de moelle osseuse. Tous ces patients sauf un étaient traités pour une hémopathie maligne et étaient en rémission clinique au moment de l'ICT. La moyenne d'ùge était de 43 ans et on comptait 3 femmes pour 10 hommes. L'ICT débutait par une fraction de 2 Gy délivrée le matin et l'évaluation clinique portait sur les 10 premiÚres heures suivant cette séance. Les nausées et vomissements étaient systématiquement prévenus par le granisétron intraveineux à raison de 3 mg, 1 h avant le début de l'ICT. Les principaux effets secondaires constatés sont la somnolence (69 %), les céphalées (62 %), la sécheresse buccale (62 %), les nausées et vomissements (46 %), l'anorexie (38 %), la douleur parotidienne (23 %) et les douleurs abdominales (8 %). Ces symptÎmes ont toujours été modérés, excepté pour 2 patients atteints de vomissements rebelles. Ces informations permettront d'évaluer plus précocement et plus précisément la dose reçue au cours d'une irradiation accidentelle. En particulier, la présence d'une fiÚvre supérieure à 38 °C à la 6e heure ne plaidera pas en faveur d'une dose d'irradiation inférieure ou égale à 2 Gy
Recommended from our members
Bridging the Faraoni and Selli oceanic anoxic events: late Hauterivian to early Aptian dysaerobic to anaerobic phases in the Tethys
A detailed geochemical analysis was performed on the upper part of the
Maiolica Formation in the Breggia (southern Switzerland) and Capriolo
sections (northern Italy). The analysed sediments consist of
well-bedded, partly siliceous, pelagic carbonate, which lodges numerous
thin, dark and organic-rich layers. Stable-isotope, phosphorus,
organic-carbon and a suite of redox-sensitive trace-element contents
(RSTE: Mo, U, Co, V and As) were measured. The RSTE pattern and
C-org:P-tot ratios indicate that most organic-rich layers were deposited
under dysaerobic rather than anaerobic conditions and that latter
conditions were likely restricted to short intervals in the latest
Hauterivian, the early Barremian and the pre-Selli early Aptian.
Correlations are both possible with organic-rich intervals in central
Italy (the Gorgo a Cerbara section) and the Boreal Lower Saxony Basin,
as well as with the facies and drowning pattern in the Helvetic segment
of the northern Tethyan carbonate platform. Our data and correlations
suggest that the latest Hauterivian witnessed the progressive
installation of dysaerobic conditions in the Tethys, which went along
with the onset in sediment condensation, phosphogenesis and platform
drowning on the northern Tethyan margin, and which culminated in the
Faraoni anoxic episode. This episode is followed by further episodes of
dysaerobic conditions in the Tethys and the Lower Saxony Basin, which
became more frequent and progressively stronger in the late early
Barremian. Platform drowning persisted and did not halt before the
latest early Barremian. The late Barremian witnessed diminishing
frequencies and intensities in dysaerobic conditions, which went along
with the progressive installation of the Urgonian carbonate platform.
Near the Barremian-Aptian boundary, the increasing density in dysaerobic
episodes in the Tethyan and Lower Saxony Basins is paralleled by a
change towards heterozoan carbonate production on the northern Tethyan
shelf. The following return to more oxygenated conditions is correlated
with the second phase of Urgonian platform growth and the period
immediately preceding and corresponding to the Selli anoxic episode is
characterised by renewed platform drowning and the change to heterozoan
carbonate production. Changes towards more humid climate conditions were
the likely cause for the repetitive installation of dys- to anaerobic
conditions in the Tethyan and Boreal basins and the accompanying changes
in the evolution of the carbonate platform towards heterozoan
carbonate-producing ecosystems and platform drowning