3 research outputs found

    Hematoma epidural cervical tras latigazo cervical

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    Se describe un hematoma epidural a nivel cervical en un varĂłn de 43 años, tras un traumatismo menor tipo latigazo cervical. Su sintomatologĂ­a inicial obligĂł a descartar patologĂ­a cardiaca llegĂĄndose al diagnĂłstico tras estudio mediante resonancia nuclear magnĂ©tica. El cuadro clĂ­nico parcial y no progresivo desaconsejĂł la cirugĂ­a, observĂĄndose su reabsorciĂłn con nuevo control de resonancia. Se realza una revisiĂłn de la bibliografĂ­a, señalĂĄndose las principales caracterĂ­sticas de esta entidad poco frecuente.We repor a case of cervical epidural hematoma in a 43 year-old man, after soft-tissue cervical spine strain (known as a “whiplast”). At the beginnig, because previous presumptive cardiac pain in this patient, we need to discart cardiac cause. We made the diagnostic of cervical epidural hematoma with the use of magnetic resonance imaging. The incomplete, not severe and nonprogressing defficits led us to conservative treatment; and the hematoma resolved spontaneously, as documented with a new magnetic resonance imaging. The medical literature relating to this uncommon entity has been reviewe

    Charged-particle multiplicities in pp interactions at root s=900 GeV measured with the ATLAS detector at the LHC ATLAS Collaboration

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    The first measurements from proton–proton collisions recorded with the ATLAS detector at the LHC are presented. Data were collected in December 2009 using a minimum-bias trigger during collisions at a centre-of-mass energy of 900 GeV. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity, and the relationship between mean transverse momentum and charged-particle multiplicity are measured for events with at least one charged particle in the kinematic range |η|500 MeVpT>500 MeV. The measurements are compared to Monte Carlo models of proton–proton collisions and to results from other experiments at the same centre-of-mass energy. The charged-particle multiplicity per event and unit of pseudorapidity at η=0η=0 is measured to be 1.333±0.003(stat.)±0.040(syst.)1.333±0.003(stat.)±0.040(syst.), which is 5–15% higher than the Monte Carlo models predict

    Charged-particle multiplicities in pp interactions at sqrt(s) = 900 GeV measured with the ATLAS detector at the LHC

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    The first measurements from proton¿proton collisions recorded with the ATLAS detector at the LHC are presented. Data were collected in December 2009 using a minimum-bias trigger during collisions at a centre-of-mass energy of 900 GeV. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity, and the relationship between mean transverse momentum and charged-particle multiplicity are measured for events with at least one charged particle in the kinematic range |¿|<2.5 and pT>500 MeV. The measurements are compared to Monte Carlo models of proton¿proton collisions and to results from other experiments at the same centre-of-mass energy. The charged-particle multiplicity per event and unit of pseudorapidity at ¿=0 is measured to be 1.333±0.003(stat.)±0.040(syst.), which is 5¿15% higher than the Monte Carlo models predict
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