CardioPulmonaryResuscitation心肺复苏术(CPR)WhyshouldwelearntheCPR?Despiteimportantadvancesinprevention,cardiacarrestremainsasubstantialpublichealthproblemandaleadingcauseofdeathinmanypartsoftheworld.TheestimatedincidenceofEMS(emergencymedicalservices)-treatedout-of-hospitalcardiacarrestintheUSandCanadaisabout50to55/100000persons/year.StudieshaveshowntheimportanceofimmediateCPRfollowedbydefibrillationwithin3-5minutesofsuddenVF(VentricularFibrillation)cardiacarrestimprovesurvival.♦IncitiessuchasSeattlewhereCPRtrainingiswidespreadanddefibrillationbyEMSpersonnelfollowsquickly,thesurvivalrateisabout30%.♦IncitessuchasNewYork,withoutthoseadvantages,thesurvivalrateisonly1-2%.Therearemanylivesandlife-yearslostbecauseappropriateresuscitationisnotattempted.MostofusknowlittleaboutthedetailofCPR.When?●Cardiacarrest●NotbreathingornotmakingsufficientrespiratoryeffortontheirownHow?●C(Circulation)●A(Airway)●B(Breathing)--2015AmericanHeartAssociationGuidelinesforCardiopulmonaryResuscitationandEmergencyCardiovascularCare1.safety:checkthesceneforsafety2.Putthepersononhis/herbackonafirmsurface.3.Kneelnexttotheperson’sneckandshoulders.4.Checkfornormalbreathing(5-10s).●Lookforchestmotion●Listenfornormalbreathsounds●Feelfortheperson’sbreathonyourcheekandearTouchcommoncarotidarteryLessthan10seconds!4.Checkforcarotidpulse(thesametime)Twofingers/2cmlateralthethroat5.ActivatetheEMSSUnresponsivenessisverydangerous—activateEMSSComehere!helpme!Askabystander,tocall120andambulance…StartCPRimmediately……6.Circulation:RestorebloodcirculationwithchestcompressionsPlacetheheelofonehandoverthecenteroftheperson’schest,betweenthenipples.Placeyourotherhandontopofthefiesthand.Keepyourelbowsstraightandpositionyourshouldersdirectlyaboveyourhands.6.Circulation:RestorebloodcirculationwithchestcompressionsUseyourupperbodyweightsasyoupushstraightdownonthechestatleast5centimeters(lessthan6cm).Pushhardatarateofabout100compressionsaminute(lessthan120compressions).7.Airway:CleartheairwayOpentheperson’sairway.●Putyourpalmontheperson’sforeheadandgentlytilttheheadback.●Withtheotherhand,gentlyliftthechinforwardtoopentheairway.●beginartificialrespiration.8.Breathing:Breathfortheperson●mouth-to-mouthbreathing●mouth-to-nosebreathingifthemouthisseriouslyinjuredorcan’tbeopend.Breathing:Breathfortheperson1.Withtheairwayopen,pinchthenostrilsshutformouth-to-mouthbreathingandcovertheperson’smouthwithyours,makingaseal.Breathing:Breathfortheperson2.Thirtychestcompressionsfollowedbytworescuebreathsisconsideredonecycle.ContinueCPRuntiltherearesignsofmovementoremergencymedicalpersonneltakeover.=30:2:After5cycles(about2minutes)ofCPR,recheckcirculation.Ifnocirculation,continueCPRandrecheckcirculationevery2minutes.Stillpulsesareabsent,ContinueCPRcycleUntilhelparrives.Thewholeprocessatleast30minutes.Dothefollowingifthepersonhassignsofcirculation:a.Checkforbreathingb.Positionthepersoninrecoverypositionifthepersonsbreathingc.Monitorbreathingandcirculationd.Recordtheprocess.Remember:●Timeislife!●EarlyCPRcanimprovesurvival.