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Causes of impaired consciousness while driving a motorized vehicle

      The frequency of motor vehicle accidents in patients previously diagnosed with ventricular arrhythmias or vasovagal syncope has been reported.
      • Curtis A.B.
      • Conti J.B.
      • Tucker K.J.
      • Kubilis P.S.
      • Reilly R.E.
      • Woodard D.A.
      Motor vehicle accidents in patients with an implantable cardioverter defibrillator.
      ,
      • Rehm C.G.
      • Ross S.E.
      Syncope as etiology of road crashes involving elderly drivers.
      ,
      • Li H.
      • Weitzel M.
      • Easley A.
      • Barrington W.
      • Windle J.
      Potential risk of vasovagal syncope for motor vehicle driving.
      ,
      • Epstein A.E.
      • Miles W.M.
      • Benditt D.G.
      • Camm A.J.
      • Darling E.J.
      • Friedman P.L.
      • Garson Jr, A.
      • Harvey J.C.
      • Kidwell G.A.
      • Klein G.J.
      • et al.
      Personal and public safety issues related to arrhythmias that may affect consciousness implications for regulation and physician recommendations.
      ,
      • Akiyama T.
      • Powell J.L.
      • Mitchell L.B.
      • Ehlert F.A.
      • Baessler C.
      Resumption of driving after life threatening ventricular tachyarrhythmia.
      However, the converse, namely, the incidence of arrhythmias and vasovagal syncope in patients presenting with impaired consciousness while driving, has not been previously determined. This information is critical to help guide evaluation and management decisions and avoid future potentially lethal incidents. Our study examines the incidence of different etiologies of impaired consciousness while driving in motorists referred to the electrophysiologic service for evaluation.
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