阵发性室上性心动过速英文课件

HuYufanModifiedValsalvaManoeuvreEmergencyDepartmentHaveyoueverfeltheartbeatingfaster?FallinloveNo,itmaightbePSVT!DefinitionPSVTParoxysmalSupraventriculartachycardia[1]阵发性室上性心动过速LongerperiodsPSVTShortnessofbreathDizzinessAnginaHeartfailureCONTENTSCONTENTS1ThefeaturesofPSVTValsalvamanoeuvreModifiedValsalvamanoeuvre23ThefeaturesofPSVT01PSVTFeaturesOriginatedintheatriumoratrioventricularjunctionareaRegularrhythms150-250/minSuddenonsetandoffsetEmergencytreatmentofPSVT

MethodsPSVTWhatcanwedo?EmergencytreatmentofPSVT

MethodsEyeballcompressionCarotidsinusmassageVagusnervestimulationTonguedepressorstimulationValsalvamanoeuvreValsalvamanoeuvre02HowtoperformValsalvamanoeuvre?[2]UsageHoldbreathinasittingpositionHowtoperformValsalvamanoeuvre?[2]UsageHold

breathIncreaseintrathoracicpressureDecreasereturnedbloodvolumeStopholdingyourbreathMassivebloodreturnActivethevagusnerve＜20%SuccessrateofValsalvaManoeuvre

UsageModifiedValsalvamanoeuvre03ModifiedValsalvamanoeuvre(MVM)[3]

LancetRaiselegs

Successrate

17%

43%Increasereturnedbloodvolume

Sitinsemi-recumbentpositionHowtoperformMVM?Step1Takea10mlsyringeandblowfor15secondsHowtoperformMVM?Step2Raisethelegsfor15s,Keepsemi-recumbentfor30sHowtoperformMVM?Step3Howtoassesstheaccuracyofblowingpressure？QuestionBloodpressuremonitorAirbagPressuregauge40mmHgHowtoperformaMVM?ReviewSitBlowRaise123ReviewThefeaturesofPSVTValsalvamanoeuvreModifiedValsalvamanoeuvreQestions3.whatarethestepsofModifiedValsalvamanoeuvre?1.whatare3featuresofPSVT?2.HowtoperformtheValsalvamanoeuvre?ThesimpleactionsletyourheartslowdownReference[1]LuXuejun,LiuYang.Paroxysmalsupraventriculartachycardia[J].JournalofCommunityMedicine,2008,6(22):9-10.[2]LynchJJ,SchuchardGH,GrossCM,etal.Prevalenceofright-to-leftatrialshuntinginahealthypopulation:detectionbyValsalvamaneuvercontrastechocardiography.[J].AmericanJournalofCardiology,1984,53(10):1478-1480.[3]AppelboamA,ReubenA,MannC,etal.PosturalmodificationtothestandardValsalvamanoeuvreforemergen