最新Emergency ContraceptionA Well Kept Secret[紧急避孕保存完好的秘密](33)教学讲义ppt课件.ppt

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1、EmergencyContraceptionAWellKeptSecret[紧急避孕保存完好的秘密](33)EmergencyContraceptionAWellKeptSecretTonyOgburn,MDUniversityofNewMexicoHealthSciencesCenterObjectivesUnderstandtheneedforECReviewthecurrentmethodsofECavailableintheU.S.UnderstandthebarrierstousethatexistforEC.BefamiliarwithapproachestoimproveECu

2、tilization.3MillionUnintendedPregnanciesONEHALF...couplesusingnomethodofcontraception3millioncouplesONEHALF...couplesusingareversiblemethodimperfectly,orexperiencingamethodfailure24millioncouplesSource:Henshaw1998;Abmaetal.1997EC:PotentialImpactReduceunintendedpregnanciesby1.5millionReduceabortion

3、s0.7millionSource:Trusselletal.1992;Henshaw1998EmergencyOptionsintheUnitedStatesOralcontraceptivepillscontainingonlyprogestinOralcontraceptivepillscontainingestrogenandprogestinEmergencyCopper-TIUDinsertionEmergencyContraceptivePills:CombinedRegularbirthcontrolpills-YuzpemethodContainestrogenandpr

4、ogestin-atleast1mgofLNGand200mcgofethinylestradiol2dosesof2,4,or5pills,dependingonbrandFirstdosewithin72(120)hoursSeconddose12hourslater(ormaybenot!)Sideeffects:nausea(50%)andvomiting(20%)Trusselletal.Women’sHealthPrimCare1998;1:55(Nolongeravailable)PrevenEmergencyContraceptivePills:CombinedEmergen

5、cyContraceptivePills:Progestin-onlyBirthcontrolpillscontainingonlyprogestin2dosesof1PlanBtabletor20OvrettetabletsFirstdosewithin72(120)hoursafterintercourseSeconddose12hourslater(ormaybenot!)Lessnausea/vomitingthancombinedECPsTaskForce.Lancet1998;352:428EmergencyContraceptivePills:Progestin-onlyPla

6、nBEmergencyCopperIUDInsertionCopper-TIUD(ParaGard)Insertionwithin5daysafterunprotectedintercourse10moreyearsofhighlyeffectivecontraceptionMuchmoreeffectivethanECPsNotrecommendedforwomenatriskofsexuallytransmittedinfections(STIs)Copper-TIUDOrthoCombinedECPEffectiveness:SingleUse100womenhaveunprotect

7、edsexinthe2ndor3rdweekoftheircycle8willbecomepregnantwithoutemergencycontraception2willbecomepregnantusingcombinedECPs(75%reduction)Source:Trussell,RodríguezandEllertson1998Progestin-onlyECPEffectiveness:Si