播散性水痘带状疱疹病毒性脑炎

文章来源:化脓性脑膜炎   发布时间:2019-1-16 13:35:32   点击数:
 

?颅脑MRI-A显示:胼胝体区多发微出血

?颅脑MRI-B显示:双侧颞叶多发微出血

?左下肢弥漫性丘疹及血疱

?A33-year-oldhomelesswomanpresentedtotheemergencyroominSeptember,,with2daysofdrycough,dyspnoea,andfever,and1weekofpruriticrash.Onexaminationshehadatemperatureof41·0°C,bloodpressureof98/65mmHg,heartrateof85bpm,respiratoryrateof16bpm,andO2saturationof47%onroomair.

?Shehadadiffusepapularrashwithvesiclesofdifferentageswithhaemorrhagiccrustaffectingthetrunk,extremities,face,andscalp,butsparingthepalmsandsoles(figure).Shehadnormalmentalstatus,cranialnerves,motor,andsensoryexamination.Chestradiographshoweddiffusebilateralairspaceopacities.

?Withinafewhoursofpresentationshesuddenlybecameconfused,withflaccidparalysisnecessitatingintubationandadmissiontothemedicalintensivecareunit.Electroencephalogramshowednon-convulsivestatusepilepticus.MRIbrainshowedmultiplefociofpunctatemicrohaemorrhagesthroughoutthecorpuscallosum,bothtemporallobes,andleftposteriorcingulategyrus,consistentwithinfectioushaemorrhagicencephalitis(figure).HIVtestingwaspositive,withCD4count4cells/μL(normal–cells/μL),andviralloadwas66?copies/mL(normal50copies/mL).Askinbiopsysamplestainedpositiveforvaricellazostervirus(VZV),butnegativeforherpessimplexvirus(HSV).

?Zoster-associatedencephalitisfromdisseminatedVZVcandevelopwithindaysofthedisseminatedrash,andshouldbestronglysuspectedinimmunosuppressedpatients.Characteristicsignsofzoster-associatedencephalitisincludeacutedelirium,typicalsignsofstrokesuchasheadachewithacutehemiplegia,aphasia,ataxia,hemisensoryloss,orvisualchanges,dependentonthepredominantlocationoftheVZVvasculitis.Intravenousaciclovir10mg/kgevery8hfor7–10daysshouldbestartedearlyifthereisclinicalsuspicionofencephalitis.

?Ourpatientwasgivenintravenousaciclovirandmultipleantiepilepticdrugstocontrolherseizures.WetreatedherforVZVpneumonia,aspergilluspneumonia,propofol-inducedpancreatitis,Escherichiacoliurinarytractinfection,andcriticalillnessmyopathy.

?Afterstabilisationinhospitalshewasstartedonantiretroviralsandpneumocystispneumoniaprophylaxis.After2monthsofrehabilitationshecouldwalkindependentlyand







































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