RESUMO
Penetrating trauma has increased in developed and urban environments. Pulmonary artery injury is rare, but can be associated with significant morbidity. We report a case of delayed cardiac arrest following a stab injury to the chest. The patient had active great vessel bleeding and required extensive surgical intervention. Clinicians should have a high index of suspicion for life-threatening thoracic injuries following a stab injury to the chest, despite initial clinical stability or negative baseline radiological findings.
Assuntos
Aorta Torácica/lesões , Artéria Pulmonar/lesões , Traumatismos Torácicos/complicações , Ferimentos Perfurantes/complicações , Aorta Torácica/cirurgia , Humanos , Escala de Gravidade do Ferimento , Masculino , Pessoa de Meia-Idade , Artéria Pulmonar/cirurgia , Traumatismos Torácicos/cirurgia , Ferimentos Perfurantes/cirurgiaRESUMO
Classical swine fever virus (CSFV) is a member of the genus Pestivirus in the family Flaviviridae. The N(pro) product of CSFV targets the host's innate immune response and can prevent the production of type I interferon (IFN). The mechanism by which CSFV orchestrates this inhibition was investigated and it is shown that, like the related pestivirus bovine viral diarrhea virus (BVDV), this involves the N(pro) protein targeting interferon regulatory factor-3 (IRF-3) for degradation by proteasomes and thus preventing IRF-3 from activating transcription from the IFN-beta promoter. Like BVDV, the steady-state levels of IRF-3 mRNA are not reduced markedly by CSFV infection or N(pro) overexpression. Moreover, IFN-alpha stimulation of CSFV-infected cells induces the antiviral protein MxA, indicating that, as in BVDV-infected cells, the JAK/STAT pathway is not targeted for inhibition.