EuropeanJournalofAnaesthesiology Volume25,Supplement44,2008 Abstracts and Programme EUROANAESTHESIA 2008 The European Anaesthesiology Congress Copenhagen, Denmark, 31 May–3 June 2008 European Journal of Anaesthesiology Editor-in-Chief Editors Editor of Supplements B. J. Pollard Manchester, UK J.-P. Haberer Paris, France B. Matta Cambridge, UK M. Tramèr Genève, Switzerland Deputy Editor-in-Chief and Editor of G. Capogna Roma, Italy Editor of EACTA Supplements Commissioned Reviews H. Tydén Uppsala, Sweden R. Feneck London, UK T. A. Crozier Göttingen, Germany M. Leuwer Liverpool, UK A. W. Gelb London, Canada L. Bogar Pécs, Hungary Statistical Adviser C. J. D. Pomfrett Manchester, UK B. Matta Cambridge, UK C. Bailey London, UK P. Rosenberg Helsinki, Finland Associate Editors M. Columb Manchester, UK C. J. D. Pomfrett Manchester, UK S. De Hert Genk, Belgium N. J. N. Harper Manchester, UK Editorial Board Chairman A. R. Aitkenhead Nottingham, UK Members A. Hoeft Bonn, Germany B. Matta Cambridge, UK H. Van Aken Münster, Germany Editor-in-Chief Deputy Editor-in-Chief *P. Simpson Bristol, UK, President of the European Society of Anaesthesiology *E. Kochs Munich, Germany, Secretary of the European Society of Anaesthesiology *M. Tramèr Geneva, Switzerland, Treasurer of the European Society of Anaesthesiology *C.-J. Jakobsen Aarhus, Denmark, President of the European Association of Cardiothoracic Anaesthesiologists *J. T. A. Knape Utrecht, Netherlands, President of the Union Européenne des Médecins Spécialistes, Section of Anaesthesiology *P. Scherpereel Lille, France, President of the Fondation Européenne d’Enseignement en Anesthésiologie [*Ex-officio] Commissioning Editor Dan Edwards (E-mail: [email protected]) European Journal of Anaesthesiology (EJA) is the official publication of the Despatch. European Journal of Anaesthesiology is dispatched within the UK European Society of Anaesthesiology. 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In The Publishers’ Policy is to use acid-free permanent paper, to the draft stan- no way can they be construed necessarily to reflect the view of either the dard ISO/DIS 9706, made from sustainable forests using chlorine-free pulp. Editors or the Publishers. EUROANAESTHESIA 2008 The European Anaesthesiology Congress Copenhagen, Denmark, 31 May–3 June 2008 ABSTRACT PRESENTATION PROGRAMME Pleasenotethatallabstractsarepresentedasposterpresentations:abstractpresentersdonotmakeaformalpresentationoftheirabstract inaseparateroom,usingaudiovisualaids(exceptfortheESABestAbstractPrizeCompetition(BAPC)andtheBestAbstracts–Runner-up Session1&2).Instead,twochairpersonswillconduct,infrontofeachposter,ashortdiscussionofeachabstractwiththepresenterand theaudience,foreveryabstractinthatsession.Posterpresentershavebeenaskedtostandbytheirposterfor45minutesbeforeand30 minutesaftertheirsession,toaddressfurtherquestions. PosterBoardlocation Allpostersofregularabstract sessionswillbedisplayedinHallA1.Eachabstractpresentationsessionisdisplayedinadifferentposter boardrow.Rowsarenumbered,toeasilylocateagivensession.Thefirstboardofeachrowcontainsaninformationboardthatliststhe sessionreference,date,timeandchairperson(s). Note:AllabstractsessiondetailsinthisSupplementarecorrectatthetimeofprinting.Sessiondatadisplayedontheinformationboards,in particularchairpersonnames,maybemoreuptodate. NotethattheBestAbstractPrizeCompetition,withsessionreferenceESAPC1,takesplaceinRoomB5,asdotheBestAbstracts–Runner- upSession1andtheBestAbstracts–Runner-upSession2.Thepostersofthese“best”abstracts,however,willalsobeondisplayinHall A1forthedurationofthecongress. Locatinganabstract Theacceptedabstractnumberformatconsistsofthesessionreference,followedbyanumberdenotingtheorderoftheabstractwithinthis session:forexample,session6AP1wouldbethefirst(1)AbstractPresentation(AP)sessionforsubcommittee6).Thefirstabstracttobe presentedinsession6AP1willthusbecalled6AP1-1,thesecondone6AP1-2andsoon.(Theremaybeomissionsinthenumberingdue towithdrawnabstracts.) Tolocateabstract6AP1-2orotherabstractsforsession6AP1,lookforthesessionreference(6AP1)intheschedulelistedbelow,thenfind theappropriatepagenumber,whichalwaysreferstothepagenumberofthefirstabstractwithinthespecifiedsession. Thenumberoftheposterboardrowisindicatedforeachsession.Tofindtheposterboardforabstract6AP1-2,gototheposterboardrow indicatedforsession6AP1(onthedayofpresentation),thenlookfortheposterboardwithnumbertwoindicatedatthetop. Date Time Reference Room/RowinHallA1 Page ESABestAbstractPrizeCompetition(BAPC) Sunday,June1 12:15–13:45 ESAPC1 RoomB5 1 BestAbstracts–Runner-upSessions Sunday,June1 08:30–10:00 ESAAP1 RoomB5 2 Sunday,June1 10:30–12:00 ESAAP2 RoomB5 4 Subcommittee1–Evidence-basedpracticeandqualityassurance Sunday,June1 10:15–11:45 1AP1 ROW2B 6 Sunday,June1 16:00–17:30 1AP2 ROW1B 9 Monday,June2 10:30–12:00 1AP3 ROW1A 12 Monday,June2 16:00–17:30 1AP4 ROW2A 14 Subcommittee2–Ambulatoryanaesthesia Sunday,June1 10:15–11:45 2AP1 ROW4B 18 Sunday,June1 14:00–15:30 2AP2 ROW2A 20 Monday,June2 16:00–17:30 2AP3 ROW4A 22 Subcommittee3–Monitoring:equipmentandcomputers Saterday,May31 15:15–16:45 3AP1 ROW2B 24 Sunday,June1 12:15–13:45 3AP2 ROW1A 27 Sunday,June1 12:15–13:45 3AP3 ROW3A 31 Sunday,June1 16:00–17:30 3AP4 ROW3B 34 Sunday,June1 16:00–17:30 3AP5 ROW5B 38 Monday,June2 16:00–17:30 3AP6 ROW6A 40 Monday,June2 16:00–17:30 3AP7 ROW8A 44 iv Contents Subcommittee4–Clinicalandexperimentalcirculation Saterday,May31 15:15–16:45 4AP1 ROW4B 47 Sunday,June1 12:15–13:45 4AP2 ROW5A 51 Sunday,June1 12:15–13:45 4AP3 ROW7A 53 Sunday,June1 14:00–15:30 4AP4 ROW4A 57 Sunday,June1 14:00–15:30 4AP5 ROW6A 59 Monday,June2 16:00–17:30 4AP6 ROW10A 62 Monday,June2 16:00–17:30 4AP7 ROW11A 64 Tuesday,June3 10:30–12:00 4AP8 ROW1B 66 Subcommittee5–Respiration Sunday,June1 10:15–11:45 5AP1 ROW6B 69 Sunday,June1 10:15–11:45 5AP2 ROW8B 72 Monday,June2 14:00–15:30 5AP3 ROW2B 74 Tuesday,June3 10:30–12:00 5AP4 ROW3B 77 Subcommittee6–Transfusionandhaemostasis Saterday,May31 13:15–14:45 6AP1 ROW1B 80 Sunday,June1 12:15–13:45 6AP2 ROW9A 83 Sunday,June1 14:00–15:30 6AP3 ROW8A 87 Monday,June2 16:00–17:30 6AP4 ROW12A 89 Subcommittee7–Neurosciences Sunday,June1 10:15–11:45 7AP1 ROW10B 92 Sunday,June1 16:00–17:30 7AP2 ROW7B 94 Monday,June2 10:30–12:00 7AP3 ROW3A 96 Monday,June2 10:30–12:00 7AP4 ROW5A 98 Monday,June2 14:00–15:30 7AP5 ROW4B 101 Tuesday,June3 10:30–12:00 7AP6 ROW5B 104 Subcommittee8–Localandregionalanaesthesia Saterday,May31 15:15–16:45 8AP1 ROW6B 107 Saterday,May31 15:15–16:45 8AP2 ROW8B 109 Sunday,June1 12:15–13:45 8AP3 ROW11A 112 Sunday,June1 14:00–15:30 8AP4 ROW10A 114 Sunday,June1 14:00–15:30 8AP5 ROW12A 116 Sunday,June1 16:00–17:30 8AP6 ROW9B 118 Tuesday,June3 10:30–12:00 8AP7 ROW7B 121 Subcommittee9–Pharmacology Sunday,June1 12:15–13:45 9AP1 ROW13A 125 Sunday,June1 12:15–13:45 9AP2 ROW15A 127 Sunday,June1 16:00–17:30 9AP3 ROW11B 130 Sunday,June1 16:00–17:30 9AP4 ROW13B 132 Monday,June2 10:30–12:00 9AP5 ROW7A 135 Monday,June2 10:30–12:00 9AP6 ROW9A 138 Monday,June2 16:00–17:30 9AP7 ROW14A 141 Monday,June2 16:00–17:30 9AP8 ROW16A 144 Tuesday,June3 10:30–12:00 9AP9 ROW13B 147 Subcommittee10–Paediatricanaesthesiaandintensivecare Saterday,May31 13:15–14:45 10AP1 ROW3B 151 Sunday,June1 16:00–17:30 10AP2 ROW15B 154 Monday,June2 16:00–17:30 10AP3 ROW18A 157 Subcommittee11–Obstetricanaesthesia Saterday,May31 15:15–16:45 11AP1 ROW12B 159 Monday,June2 14:00–15:30 11AP2 ROW6B 161 Subcommittee12–Intensivecaremedicine Saterday,May31 15:15–16:45 12AP1 ROW14B 164 Sunday,June1 10:15–11:45 12AP2 ROW12B 167 Sunday,June1 12:15–13:45 12AP3 ROW17A 169 Sunday,June1 12:15–13:45 12AP4 ROW19A 172 Sunday,June1 14:00–15:30 12AP5 ROW14A 175 Monday,June2 10:30–12:00 12AP6 ROW11B 178 Monday,June2 10:30–12:00 12AP7 ROW13A 180 Monday,June2 14:00–15:30 12AP8 ROW8B 183 Contents v Subcommittee13–Resuscitationandemergencymedicine Saterday,May31 13:15–14:45 13AP1 ROW5B 186 Monday,June2 14:00–15:30 13AP2 ROW12B 189 Tuesday,June3 10:30–12:00 13AP3 ROW15B 190 Subcommittee14–Acuteandchronicpainmanagement Saterday,May31 13:15–14:45 14AP1 ROW7B 193 Saterday,May31 13:15–14:45 14AP2 ROW9B 195 Saterday,May31 15:15–16:45 14AP3 ROW16B 198 Sunday,June1 10:15–11:45 14AP4 ROW14B 202 Sunday,June1 10:15–11:45 14AP5 ROW16B 204 Sunday,June1 12:15–13:45 14AP6 ROW20B 207 Sunday,June1 14:00–15:30 14AP7 ROW16A 210 Sunday,June1 16:00–17:30 14AP8 ROW17B 213 Monday,June2 10:30–12:00 14AP9 ROW15A 215 Monday,June2 10:30–12:00 14AP10 ROW17A 216 Monday,June2 14:00–15:30 14AP11 ROW14B 219 Monday,June2 14:00–15:30 14AP12 ROW16B 221 Subcommittee15–Education,researchandpresentation Sunday,June1 14:00–15:30 15AP1 ROW18A 223 Monday,June2 10:30–12:00 15AP2 ROW19A 226 Subcommittee17–Patientsafety Sunday,June1 10:15–11:45 17AP1 ROW18B 228 Monday,June2 10:30–12:00 17AP2 ROW21A 231 Monday,June2 14:00–15:30 17AP3 ROW18B 233 Subcommittee19–Airwaymanagement Saterday,May31 15:15–16:45 19AP1 ROW18B 236 Saterday,May31 15:15–16:45 19AP2 ROW20B 238 Sunday,June1 12:15–13:45 19AP3 ROW22B 241 Sunday,June1 16:00–17:30 19AP4 ROW19B 243 Sunday,June1 16:00–17:30 19AP5 ROW21B 246 Monday,June2 16:00–17:30 19AP6 ROW20A 249 Monday,June2 16:00–17:30 19AP7 ROW22B 253 Tuesday,June3 10:30–12:00 19AP8 ROW17B 255 The abstracts published in this Supplement have been typeset from electronic submissions and camera-ready copies prepared by the authors.Everyefforthasbeenmadetoreproducefaithfullytheabstractsassubmitted.Theseabstractshavebeenpreparedinaccordance with the requirements of the European Society of Anaesthesiology and have not been subjected to review nor editing by theEuropean JournalofAnaesthesiology.However,noresponsibilityisassumedbytheorganizersorpublisherforanyinjuryand/ordamagetopersons or property as a matter of products liability, negligence or otherwise, or from any use or operation of methods, products, instructions or ideascontainedinthematerialherein.Becauseoftherapidadvancesinmedicalsciences,werecommendthatindependentverificationof diagnosesanddrugdosesshouldbemade. Call for abstracts The ESA solicits the submission of abstracts for the Euroanaesthesia 2009 Meeting Milan, Italy 6-9 June 2009 All abstracts must be submitted online via the ESA Website www.euroanesthesia.org The submission module will be available to submitters from November 1st to December 15th 2008 Submission Conditions When submitting your abstract, you will be prompted to accept the submission conditions that will be made available on the ESA website at least one month before the submission starts. ESA Best AbstractPrize Competition(BAPC) ESAPC1-1 cellsdisplayedgradualdevelopmentofmechanicalallodyniaandthermalhyper- XenonreducesNMDA-receptormediatedsynaptic algesia,beginningfromday7followinginjectionofcells.TwosiRNAswereiden- transmissioninthemouseamygdalaviapostsynaptic tifiedthatwerecapableofahighly-selectiveattenuationofNav1.8messagein mechanismsandindependentontheNR2AorNR2Bsubunit culturedDRGcells.IntrathecalinjectionofM-siRNA,butnotthenegativecontrol RNAorvehiclealone,attenuatedmechanicalallodyniaandthemalhyperalgisa R.Haseneder,S.Kratzer,E.Kochs,W.Zieglgänsberger,G.Rammes ofbonecancerpain.IntrathecaladministrationofM-siRNAwasconcomitant DepartmentofAnesthesiology,KlinikumRechtsderIsar,Technische withareductionintheNav1.8transcriptsinthelumbarDRG.Negativecon- UniversitätMünchen,Munich,Germany trolRNAinjectiondidnotalterexpressionofNav1.8inlumbarDRG,andhad BackgroundandGoalofStudy:Althoughtheneuronalmechanismsofthe noeffectonthebaselinethresholdofnociception.Theantinociceptioneffectof anaestheticgasXenon(Xe)arenotyetfullyunderstood,thereisevidencefrom M-siRNAcontinuedto72hafterthelastRNAinjection. studiesusingneuronsinculture(1),thattheNMDAreceptorisamajortarget Conclusion(s):WeconcludethatsilencingofNav1.8channelusingasiRNA forXeaction.Inthepresentstudy,weinvestigatedthemechanisms,howXe approachiscapableofproducingallodyniaandhyperalgesiareliefinthebone reducesNMDAreceptormediatedsynaptictransmissioninaninvitrobrainslice cancemodel. preparationofthemouseamygdala. Materials and Methods: Coronar brain slices were obtained from male mice(Bl6;d28-35). Neurons inthebasolateral amygdala wereidentified by ESAPC1-3 infrared-phasevideomicroscopy. Fromtheseneurons,pharmacologically iso- InfluenceofrhDNAseonthedurationofmechanical lated NMDA receptor mediated currents were recorded using patch clamp ventilationinintensivecarepatients technique.Thecurrentswereevokedeitheruponelectricalstimulation(NMDA- N.Deschner,W.Brehm,R.Vonthein,J.Riethmueller eEPSCs)oruponfocal,laser-guidedphotolysisofcagedL-glutamate(p-NMDA- Cs).Undercontrol conditions,thesliceswerekeptinartificialcerebro-spinal Dept.ofAnaesthesiologyandIntensiveCareMedicine,UniversityHospital fluid (ACSF)gassed with 65% N2/30% O2/5% CO2. For Xe application, the Tuebingen,Tuebingen,Germany ACSFwasgassedwith65%Xenon/30% O2/5% CO2.NVP-AAM077(NVP), Background and Goal ofStudy: RhDNaseis effective inthetreatment of andRo25-6981 (Ro),whichareselectiveantagonists oftheNMDAreceptor childrenwithcysticfibrosis[1].Significantreductionofdurationofventilationby NR2A(2)andNR2B(3)subunit,respectively,wherebathappliedatknowncon- rhDNAsehasbeenreportedinchildrenfollowingcardiacsurgery[2].Thegoal centrationsviathesuperfusionsystem. ofthisstudywastoinvestigatewhetherrhDNaseisabletoreducetheduration Results and Discussion: Xe reversibly reduced electrically evoked NMDA- ofventilationinadultmechanicallyventilatedintensivecarepatients. eEPSCsto64.6±5.3%ofcontrol(n=6).Whenmimickingsynapticresponses MaterialsandMethods:Afterapprovaloflocalethicscommitteeswecon- byuncagingglutamate,p-NMDA-CswerereducedinthepresenceofXetoa ducted adouble-blind,placebo-controlled, randomised, multi-centrenational similarextent(72.9±5.1%,n=6;p>0.05vs.NMDA-eEPSCs).Totestwhether trial.Patientswerestratifiedintwosubgroupsdependingontheirstatusassur- Xe-induceddepressionoftheNMDAreceptor-mediatedsynaptictransmission gicalornon-surgical.Thetrialwasstartedwithin48hafterstartofmechanical isdependentonthefunctionalityoftheNR2AorNR2Bsubunit,p-NMDA-Cs ventilationandlasteduntilweaningwassuccessful.Patientsinthetreatment wererecordedinthepresenceoftheselectiveantagonistsNVP(50nM)orRo groupreceived2,5mlofrhDNaseendotracheally twiceaday.Patientsinthe (0.5μM).TheXeinducedreductionundertheseconditionswasnotsignificantly placebogroupreceivedthesameamountofnormalsaline. differentfromthatwithoutNR2AorNR2Bblockade,respectively,indicatingthat ResultsandDiscussion:123surgicaland162non-surgicalpatientswerein- Xeexertsitseffectatneitherofthesesubunits. cludedinthestudy.Factorslikegender,weight,smokinghabit,chronicpre- Conclusion(s): In the present study we found a pronounced depression of existing diseases and prevalence of COPD were distributed equally in both NMDAreceptormediatedsynaptictransmissioninthemousebasolateralamyg- groups insurgicalpatients.Innon-surgicalpatientsmoresmokerswereran- dala.TheeffectsofXecantherebybeexplainedbyapostsynapticmechanism. domizedtotherhDNasegroup.Acuteburnpatientswererandomizedtothe Additionally,weprovideevidence,thatthepharmacologicaltargetofXemight rhDNasegrouponly.12patients(2surgical)diedintherhDNasegroupver- bepredominantlytheNR1subunit. sus16(4surgical)intheplacebogroup.Insurvivingsurgicalpatientsmedian References: durationofventilationwas16.6days(CI11.5to21days)intherhDNaseand 1 DeSousaS,DickinsonR,LiebWR,etal.Anesthesiology2000;92:1055–66. 11.7days(CI8.4to15.6days,p=0.39)intheplacebogroup.Insurvivingnon- 2 AubersonYP,AllgeierH,BischoffS,etal.BioorgMedChemLett2002;12:1099–1102. surgicalpatientsmediandurationofventilationwas7.8days(CI6to9.3days)in 3 FischerG,MutelV,TrubeG,etal.JPharmacolExpTher.1997;283:1285–92. therhDNaseand12.6days(CI7.9to16.9days;p=0.038)intheplacebogroup withoutadjustmentforsmokinghabits.Inadultnon-surgicalintensivecarepa- tients,rhDNasesignificantlyshortensthedurationofventilation.Thiseffectis ESAPC1-2 notseeninsurgicalpatients.Thehypothesisthatespeciallypneumoniathatre- AlleviateallodyniaandhyperalgesiabysilencingofNav1.8 quiresmechanicalventilationresponds favourablytotreatmentwithrhDNase withsiRNAinbonecancerpainrats shouldbeinvestigated. Conclusion(s):RhDNaseisabletoreducethedurationofventilationinadult L.Xu,Y.Liu,H.Zhang non-surgicalintensivecarepatients. Anesthesiology,PLAGeneralHospital,Beijing,China Disclosure: Travel expenses are paid by Roche, the manufacturer of Pul- BackgroundandGoalofStudy:Thegoalofthestudywastoevaluatethe mozyme. invivogenesilencingeffectofNav1.8indorsalrootanglia(DRG)byintrathecal References: administrationofchemicallysynthesizedsiRNAwith3’terminalmethylmodifi- 1 Fuchsetal.,NEnglJMed1994;331:637–642. cation,andtoinvestigatetheantinociceptiveeffectofsiRNAtargetingNav1.8 2 RiethmuellerJetal.,PediatrPulmonol.2006;41:61–6. inaratmodelofbonecancerpain. MaterialsandMethods:(1)FemaleSDratsrecievedintra-tibialinjectionof 5×104syngeneticWalker256mammaryglandcarcinomacells.Mechanicalal- ESAPC1-4 lodyniaandthermalhyperalgesiaweretestedaftercellinjection.(2)Threepairs Annon-O2consuminginotropedrugimprovessurvivalinan ofsiRNAtargetingNav1.8byinvitrotranscriptionwithT7RNApolymerasewere animalmodelofcardiacarrest synthesized.Amismatchedduble-strandRNAwaschoosedasnegativecontrol E.Koudouna,T.Xanthos,E.Dassiakou,D.Perrea,L.Papadimitriou RNA.siRNAweretransfectedintoprimaryculturedDRGneuronsandmRNA expressionofNav1.8wasdeterminedwithRT-PCRandQ-PCR48hafterthe ExperimentalSurgeryandSurgicalResearch,UniversityofAthens,Athens, transfecion.(3)WesynthesizedsiRNAchemicallyaccordingtothesequence Greece thatcanmosteffectivelyattenuationofNav1.8mRNAinvitroand3’terminalof BackgroundandGoalofStudy:Cardiacarrestremainstheleadingcause siRNAwasmethylmodified(M-siRNA).M-siRNA,negativecontrolRNAandnor- of death in Europe. The role of adrenaline remains controversial, due to its malsalineweredeliveredasrepeateddailybolusdoses(25-100ug,for7days) beta-adrenergiceffects,whichareknowntoinducepost-resuscitationmyocar- viaimplantedintrathecalcathetertothelumbarspinalcordofbonecancerrats. dialdysfunction.Thegoalofthisstudy wastodeterminewhetheranon-O2 Mechanicalallodyniaandthermalhyperalgesiaweretestedeverydayafterin- consuminginotropedrug,suchaslevosimendan,incombinationtoadrenaline, trathecalinjection.(4)L4-6DRGoftheratswasobtainedtwenty-fourhoursafter duringresuscitation,wouldimprovesurvival. thelastsiRNAinjection.Nav1.8expressionintheDRGwasevaluatedbyusing Materials and Methods: Thirty two healthy Landrance/Large White piglets ofRT-PCRandQ-PCRmethods. 20±1.7kg aged 16-18 weeks, were randomized into 2 groups (16 animals Results and Discussion: Ratsreceivingintra-tibial injections ofwalker256 each).Coronaryperfusionpressurewasmonitoredduringtheresuscitationpe- 2 BestAbstracts–Runner-upSession1 riod.Usingapacingwirethroughtheinternaljugularvein,ventricularfibrillation ducedspontaneousacutepain(NRS=6of10)andstableareasofpinprick- wasinducedtoallanimalsandleftuntreatedfor6minutes.AnimalsinGroup hyperalgesiaandallodynia.Painintensitiesaswellastheareasofhyperalgesia A receivedsalineas placebo (10ml dilution, bolus)+adrenaline (0.02mg/kg) wereassessedbeforeandaftera10dayslastingintakeofeitherrimonabantat andanimalsinGroupBreceivedlevosimendan(12mcg/kg/10ml dilution,bo- anoraldoseof20mgonceperday(sufficienttoreach>90%ofthesteady lus)+adrenaline(0.02mg/kg)duringcardiorespiratoryresuscitation(precordial stateplasmalevel)orplacebo.Eachsessionwasperformedoveraperiodof compressionsandmechanicalventilation).Electricalfibrillationwasattempted 100minwhileacuteongoingpainaswellasareasofallodyniaandhyperalgesia after8minutesofcardiacarrest(6minofuntreatedventricularfibrillationand wereassessedatregularintervals.Stimulationintensityinsession1andsession 2minofcardiorespiratoryresuscitation).Coronaryperfusionpressure(CPP)was 2wasidentical.Statisticalanalysiswasperformedontheintegralofpainratings monitoredduringresuscitationperiod.Animalswithreturnofspontaneouscir- andhyperalgesicandallodynicareasizes(cm2)overtime(min). culation(ROSC)wereplacedbacktotheircagesfor48hours,inordertorecord ResultsandDiscussion:Rimonabanttreatmenthadnoeffectontheratings survival. ofacutepaininducedbyelectricalstimulation(NRSdecrease:-2.0±5.7%,n= Results and Discussion: Sevenanimals inGroup Arestored spontaneous 8volunteerseach,P=0.75,pairedStudentt-test).However,thesizesofhyper- circulationand4survivedfor48hoursafterROSC,incomparisonto16ani- algesicandallodynicskinareasweresignificantlydecreasedintherimonabant- malswhichrestoredspontaneouscirculation(p<0.05)and14,whichsurvived treatedgroup(hyperalgesia:46.3±5.2%,P<0.001;allodynia:42.6±5.0%,P (p<0.05)inGroupB.CPPwassignificantlyhigher(p<0.05)duringresuscita- =0.0074). tioninGroupB.Inconclusion,anon-O2consuminginotrope,whenadminis- Conclusion(s):Ourresultsprovidefirstdataaboutreductionofcentralsensi- teredduringcardiorespiratoryresuscitation,significantlyimprovessurvivaland tisationinahumanpainmodelcausedbyaCB1receptorantagonist.These increasescoronaryperfusionpressureduringresuscitation.Levosimendanisan findingsattributetoendocannabinoidsanovelpronociceptivefunctionindor- inotropedrug,whichisknownnottoincreaseoxygenconsumptionbythemy- sal horn neuronal circuits whichmay limitthe analgesicefficacy ofsystemic ocardiumorinducearrythmias.Inaddition,levosimendanisknowntodecrease cannabinoidagonists. rightatriumsystolicanddiastolicpressures.Itwasthereforelogicalthatlevosi- References: mendanwouldincreaseCPP,whichistheonlypredictingfactorofROSC,and 1 V.Chevaleyre,K.A.Takahashi,P.E.Castillo,AnnuRevNeurosci(Mar15,2006). improvesurvival,astheanimalswouldnotbeexpectedtohavelife-threatening post-resuscitationmyocardialdysfunction. ESAPC1-6 Conclusion(s):Levosimendan,co-administeredwithadrenalinebeforedefib- rillation,improvessurvivalinthisanimalmodelofcardiacarrestandcardiopul- Sevofluraneinducedpreconditioningintheisolatedmouse monaryresuscitation. heart:Aroleforcaveolin-1 M.Damm,A.Heintz,P.Panousis,T.Koch,S.Stehr ESAPC1-5 DepartmentofAnaesthesiologyandIntensiveCareMedicine,MedicalFaculty CarlGustavCarus,UniversityHospitalDresden,Dresden,Saxony,Germany TheCB1-receptorantagonistrimonabantreducescentral BackgroundandGoalofStudy:Caveolae,smallinvaginationsintheplasma sensitisationinahumanpainmodel membraneandtheirmainscaffoldingproteinCaveolin-1areessentialproteins J.Filitz,A.Nieberle,H.Zeilhofer,W.Koppert forsignaltransductionandtransportationprocessinsidethecell.Thereisevi- DepartmentofAnaesthesiology,UniversityHospital,Erlangen,Germany dencethatcaveolaehaveapotentialroleincardiacprotectionthroughischemia BackgroundandGoalofStudy:ReducedglycinergicandGABAergicinhi- andreperfusion.Wetestedthehypothesisthatcaveolaearealsoinvolvedin bitionisthoughttounderliesecondaryhyperalgesiaelicitedbyintensepainful sevofluraneinducedpreconditioningintheisolatedmouseheart. stimulation.Spinalendocannabinoids producedinresponsetopainfulstimu- MaterialsandMethods:Twelve6-wk-oldmaleC57BL/6(WT)andCaveolin-1 lationaresuspectedtoservethisfunction.Aimofthisstudywastoexamine knockoutmice(CAV-1-KO)wereanaesthetisedwithpentobarbitalsodium(70 theanalgesicandantihyperalgesicproperties oftheCB1-receptorantagonist mg/kg/h).Heartswererapidlyremovedduringcontinuouscoolingandmounted rimonabantinanexperimentalpainmodelinhumans. viaaortaonaperfusioncannula.Heartswereallowedtoequilibratefor20min andweresubjectedtocarbogeninthecontrolgroup(WTcontrol,n=6;CAV-1- KOcontrol,n=6)or2.8%sevofluraneinthesevofluranegroup(WTsevo,n=6; CAV-1-KOsevo,n=6)for15min.Aftera10minperiodofwashoutallhearts underwent60minischemiathroughligationoftheleftcoronaryartery(LCA). A 30 minreperfusion period followed. Ventricular pressure (LVP),dP/dtmax, heartrate,coronary flowandcoronary perfusionpressurewerecontinuously measured.Arterialandvenousperfusatesampleswerecollected.Thenormal perfusedarea,theareaperfusedbytheLCA(areaatrisk,AAR)andthesize oftheinfarctitselfweredeterminedbyusingastainingtechniquewithmicro- spheresandpropidiumiodide.Infarctsizewascalculatedasthepercentageof myocardialinfarctioncomparedwiththeAAR.Dataanalysiswasperformedus- ingOne-Way-ANOVAandpost-hocanalysisbyBonferroni. ResultsandDiscussion:Intheisolatedperfusedmouseheart60minofleft coronaryocclusionand30minofreperfusioncausedmyocardialinfarctionof 67.3±2.3%inWT-groupandof67.0±2.8%in,respectivelyCAV-1-KOgroup. Sevofluranereducedinfarctionby50.1%to33.6±2.1%(p≤0.01)intheWT heartsandbyonly18.5%to54.7±3.4%intheCAV-1-KOhearts(p≤0.01). Conclusion(s):Sevofluraneinducedpreconditioning intheisolatedperfused Materials and Methods: After approval of the local ethics committee, 16 mouse heart as infarct sizes were significantly decreased. This effect was healthy volunteers were enrolled in this double-blind and placebo-controlled presentinWTandCAV-1-KOmouse.Sevofluraneinducedpreconditioningis studyandwererandomizedintotwosex-andage-matchedgroupsof8per- interestinglylimitedintheCaveolin-1knockouthearts.Therefore,caveolin-1is sonseach.Transcutaneous electricalstimulationathighcurrentdensitiesin- likelytobeofmajorimportanceforsevofluraneinducedpreconditioning. Best Abstracts– Runner-up Session 1 ESAAP1-1 poor,weconductedarandomizedcontrolledexperimentaimingatmeasuring Colourcoding:Awaytopreventsyringeswaperrors(ssE) theimpactofcolourlabelsonssE,keepinginmindthatassEalwaysresults P.Garnerin,D.Tsoncheva,P.Chopard,T.Perneger,P.Bonnabry frombothasyringeselectionerror(Esel)andeitherachecknotperformed(Ochk) oracheckperformedbutfailed(Fchk). AnaesthesiologyService,GenevaUniversityHospitals,Geneva,Switzerland MaterialsandMethods:Viaacomputerscreen,participantswereaskedto BackgroundandGoalofStudy:TopreventssE,ithasbeensuggestedto pick-upasyringeofafictivedrugfromatraycontaining2,4,6or8items, resortoncolourcodingofdrugs.Asevidenceinfavourofthisproposalwas anddecidewhethertheywouldinjectit,byinsertingthesyringeineitherthe BestAbstracts–Runner-upSession1 3 “inject”or“inject”slotattachedtothetray.Threefactors-i.e.b&wvs.colour 3 EvronS,GladkovV,SesslerDI,etal.Predistentionoftheepiduralspacebeforecatheter labels;presencevs.absenceofsimilaritybetween2drugnames(2consecu- insertionreducestheincidenceofintravascularepiduralcatheterinsertionAnesthAnalg tivesyllablesincommon);intra-colourvs.inter-coloursimilarity-wererandomly 2007;105:460–464. allocatedto76distincttasks.ssE,Esel,OchkandFchkwereidentifiedusingdi- rectandvideotapeobservation.Theimpactofthesefactorsonthefrequency ofEsel,OchkandFchkwasanalysedinlogisticregression.Colourcodingdom- ESAAP1-3 inanceoverb&wwasassessedusingaprobabilisticriskassessmentmodel. Coughtest,abdominalsurgeryandthecombinationofboth TheprobabilityofssEwascomputedfromtheprobabilitiesofEsel,Ochk and aspredictivefactorsofpostoperativepulmonary Fchk(PssE=PEselx(POchk+(1-POchk)xPFchk))whichwereobtainedbyboostrap complicationsandmortality samplingofcorrespondingbinomialdistributions.Threescenarios(i.e.:b&w– nosimilarityvs.colour–nosimilarity;b&w–similarityvs.colour–inter-colour A.Rojo,R.Armand-Ugón,Z.Briones,J.Vallès,L.Gallart similarity;b&w–similarityvs.colour–intra-coloursimilarity)wereanalysedby Anesthesiology,HospitaldelMar-Esperança(IMAS).IMIM.UAB,Barcelona, meansof10,000Monte-Carlosimulations. Catalonia,Spain ResultsandDiscussion:ColourcodingdecreasesthefrequencyofEsel(8.8% Background and Goal of Study: Postoperative pulmonary complications vs.17.4%;OR:2.2),increasestheoccurrenceofOchk(3.8%vs.0.6%;OR:6.6), (PPC)areassociated with substantial morbidity and mortality (1).Abdominal andhasnoimpactonFchk.ThefrequencyofssEisreduced(0.2%vs.1.3%; surgery and positive cough test (CT) are relevant risk factors of PPC (1,2). OR:6.0).Colourlabelsstronglydominateb&wlabelswhenthereisnosimilar- Therelevanceofcoughtestcouldbegreaterinpatientsundergoingabdom- ity(99.6%;95%CI:99.41-99.68%),orwhensimilarityispresentwithindistinct inalsurgery,andtheaimofthisstudywastoevaluatethishypothesis. colourcodes(100%;95%CI:99.97-100%).Colourlabelsprovideonlyaslight MaterialsandMethods:Weanalyzeddatafromaprospectivemulticenterco- advantage whensimilarity exits withinthe same colour code (60.7%;95 CI: hortstudy(ARISCAT)performedin59hospitals.Forthepresentpartialstudy 59.68-61.61%). cardiacandthoracicsurgerywereexcluded.Coughtestwasperformedbyhav- Conclusion(s):Useofcolourlabelsshouldbyrecommended.However,anaes- ingthepatienttakeadeepinspirationandcoughonce,andapositivetestwas thesiologistsshouldbeawarethatwhenusingcolourcoding,hazardsremainas defined as recurrent coughing after thefirstcough (2).PPCregistered were soonasdrugnamesimilaritiesarepresentwithinthesamecolourcode.Insuch respiratory infection,athelectasis,pleuraleffusionandbronchospasm.Three- circumstances,otherdifferentiationmeanssuchasTallmanletters(ATROpine) month mortality was assessed by telephone. Patients were distributed in 4 shouldbeaddedtolimitsyringeselectionerrors. groupsconsideringabdominalsurgery(yes/no)andcoughtest(+/-).Chi-square wasandmultivariableanalyseswereused.Thecontrolgroupwasestablished fromnonabdominalsurgeryandnegativeCT.Genderandagewerealsocon- ESAAP1-2 sidered. ResultsandDiscussion:Table1showstheriskofPPC(2378patients).CT+ Doesthelateralrecumbenthead-downpositiondecreasethe representsanincreasedriskofPPC,greatlyincreasedinpatientsundergoing numberofepiduralvenouspuncturesduringcatheter abdominalsurgery. insertion? M.Chanimov,M.Friedland,M.Cohen,M.Bahar,Z.Haitov Table1.RiskfactorsofPPC DepartmentofAnesthesiology,AssafHarofehMedicalCenter,Affiliatedtothe RiskFactors OR(95%CI) SacklerFacultyofMedicine,TelAvivUniversity,Zerifin,Israel Abdominalsurgeryno,CT- BackgroundandGoalofStudy:Aninadvertentandunrecognizedepidural Abdominalsurgeryno,CT+ 3.6(1.8–7.4) veincannulationisapotentialcomplicationofepiduralanesthesia.Weevalu- Abdominalsurgeryyes,CT- 9.6(5.3–17.4) atedtheeffectofbodypostureduringepiduralcatheterinsertionontheriskof Abdominalsurgeryyes,CT+ 15.8(7.1–35.2) bloodvesselpuncture. Gender 1.04(1.03–1.06) MaterialsandMethods:Thestudysampleconsistedof900obstetricpatients Age 2.2(1.3–3.7) withabodymassindex(BMI)lessthan35,450patientswithaBMIof35–40 PPC=Postoperativepulmonarycomplications;CT=coughtest;OR=Oddsratio. whowereundergoingepiduralanalgesia,and347morbidclassIIIpatients.Pa- tientswererandomizedtohaveepiduralcatheterizationinoneofthefollowing Table2showspostoperativemortalityrisk(2431patients).Asimilarpatternof postures:sitting,lateralrecumbenthorizontalandlateralrecumbentheaddown riskwhenabdominalsurgeryandcoughtestareassociatedcanbeobserved. position.Bloodvesselpuncturewasevidencedbybloodaspiration. ResultsandDiscussion:OurresultsshowedthatasBMIincreased,theinci- Table1.RiskfactorsofMortality denceofinadvertentepiduralveincannulationalsoincreased,butinthelateral RiskFactors OR(95%CI) recumbenthead-downpositionitsignificantlydecreased. Abdominalsurgeryno,CT- PrevalenceofSecondaryOutcomes Abdominalsurgeryno,CT+ 1.7(0.8–3.7) Abdominalsurgeryyes,CT- 2.2(1.1–4.5) Sitting Lateralrecumbent Lateralrecumbent p-value Abdominalsurgeryyes,CT+ 6.1(2.4–15.1) position horizontalposition head-downposition Gender 1.1(1.06–1.11) SampleSize 300 300 300 Age 3(1.5–5.8) BodyMassIndex <35 <35 <35 PPC=Postoperativepulmonarycomplications;CT=coughtest;OR=Oddsratio. BloodinCatheter 32(10.7%) 18(6.0%) 6(2.0%) 0.001 BloodinNeedle 6(2.0%) 4(1.3%) 1(0.3%) NS Ageandgenderalsoareindependentandrelevantfactorswhichhavetobe >1Attempt 4.1% 3.8% 4.0% considered. SampleSize 150 150 150 Conclusion(s):Positivecoughtest,abdominal surgeryandmainlythecom- BodyMassIndex >35≤40 >35≤40 >35≤40 binationofbothvariablesarerelevantriskfactorsofpostoperativepulmonary BloodinCatheter 20(12.0%) 11(7.3%) 3(2.0%) 0.001 complicationsandmortality,mainlyinagedandmalepatients. BloodinNeedle 5(3.3%) 3(2.0%) 1(0.6%) NS Acknowledgements:GrantedfromMaratódeTV3041610(2003). >1Attempt 16.6% 15.5% 16.0% References: SampleSize 115 112 120 1 ArozullahAMetal.AnnSurg2000;232:242–53. BodyMassIndex 43.2±4.5 42.9±5.3 44.6±4.9 2 McAlisterFAetal.AmJRespirCritCareMed2005;171:514–7. BloodinCatheter 21(18.3%) 14(11.6%) 5(4.8%) 0.001 BloodinNeedle 7(6.8%) 5(5.35%) 4(3.3%) NS >1Attempt 20.1% 22.0% 20.4% ESAAP1-4 NS=nonsignificant. Noiseinpressuresupportimprovestheperformanceof pressuresupportventilation Conclusion(s):Thelateralrecumbenthead-downpositionforepiduralanalge- siaforlaborattermsignificantlyreducestheriskofbloodvesselpuncture(1-3). M.GamadeAbreu,P.Spieth,P.Pelosi,A.Carvalho,T.Koch References: ClinicofAnesthesiology,UniversityClinicCarlGustavCarus,Dresden, 1 BaharM,ChanimovM,CohenML,etal.Lateralrecumbenthead-downpostureforepidu- Germany ralcatheterinsertionreducesintravascularinjection.CanJAnaesth2001;48:48–53. 2 BaharM,ChanimovM,CohenML,etal.Thelateralrecumbenthead-downpositionde- BackgroundandGoalofStudy:Biologicalsystemsmaybenefitfromnoise. creasestheincidenceofepiduralvenouspunctureduringcatheterinsertioninobesepar- Inthepresentstudy,weaimedatdescribingandevaluatingtheeffectsofthe turients.CanJAanesth2004;51:577–580. newnoisypressuresupportventilation(noisyPSV)onlungphysiologicalparam- 4 BestAbstracts–Runner-upSession2 etersinexperimentallunginjury.WehypothesizedthattheperformanceofPSV inMCFwhilepatientsreceivingplacebolost38%(p=0.016)duringsurgery, canbeimprovedbyextrinsicnoise. witha30%differencebetweengroups(p=0.04).Despitesimilarprothrombin MaterialsandMethods:Twelvepigsweighing25.0to36.5kgwereanes- converison,patientsintheF.XIIIvs.theplacebogrouphadsignificantlyreduced thetized,hadthetracheaintubatedandlungsventilatedwithamechanicalven- fibrinogenconsumption(-28%,p=0.01).Also,bloodlosswassignificantlyre- tilator(volume-controlled mode). Acutelunginjury wasthen inducedby sur- duced(-29%,p=0.041).Threepatientsexperiencedadverseevents,which factantdepletion.Biphasicintermittentairwaypressure/airwaypressurerelease seemednotrelatedtoF.XIIIsubstitution.Thetrialwasstoppedearlyaftera ventilation(BIPAP/APRV)wasinitiatedandanesthesiadepthwasdecreasedto plannedinterimanalysiswiththeprimaryendpointreached. allowspontaneousbreathing.Afterthat,eachanimalwasventilatedwithfour Conclusion(s):Theseresultsconfirmourhypothesisthatpatientsathighrisk differentmodesofassistedmechanicalventilation(1houreach,Latinsquares forintraoperativebloodlossbenefitfromearlyF.XIIIapplication. sequence):1)PSV;2)PSVcombinedwithintermittentsighs(PSV+Sighs);3) Disclosure:W.Kortehasreceivedresearchsupportandspeakerfeesfrom BIPAP/APRV+spontaneousbreathing;4)noisyPSVwithrandomvariationof CSLBehring. pressuresupport(normaldistribution,coefficientofvariationof30%).Themean levelofpressuresupportwassetidenticalinallPSVforms.Lungaerationwas assessedbycomputedtomography andthedistributionofpulmonary blood ESAAP1-6 flowwithintravenouslyadministeredcoloredmicrospheres. Results andDiscussion: WefoundthatnoisyPSV:increasedtidalvolume Foreigncellsandsubstancesdragintothesubarachnoid variabilitycomparedtoPSVandPSV+Sighs(19%vs.5%and7%,respectively, spaceduringspinalanesthesiainhumans:Incidencerelated p<0.05)independentlyfromtheinspiratoryeffort;improvedoxygenationand toneedletypeandapproach reducedvenousadmixture,butdidnotaffecttheamountofnon-aeratedlung F.Rocha,E.Ferreira,P.Amorim,J.Barbot tissueascomparedtootherassistedventilationmodes;reducedmeanairway Anestesia,HospitaldaPrelada,Porto,Portugal,Portugal pressureatcomparableminuteventilation;redistributedpulmonarybloodflow towardsnon-dependentlungregionssimilartootherPSVforms,whereasBI- BackgroundandGoalofStudy:Tissuecoringoccursinspinalanesthesiaas PAP/APRV+spontaneousbreathingdidnot;reducedtheinspiratoryeffortand theneedledragsforeigncellswhengoingfromtheskintothesubarachnoid cardiacoutputincomparisonwithBIPAP/APRV+spontaneousbreathing. space1.Tissuecoringbyepithelialcellshasbeenassociatedtothedevelop- Conclusion(s):Inthesurfactantdepletionmodelofacutelunginjury,thenew mentofintraspinaltumors2.Westudiedthepresenceofepithelialcellsinthe noisyPSVincreasedthevariabilityoftherespiratorypatternandimprovedoxy- CSFwhenperformingspinalanesthesia,factorsrelatedtoitandifrejectingthe genationbyaredistributionofperfusiontowardstheventilatednon-dependent firstdropofCSFreducedthepresenceofepithelialcells.Thepresenceoftal- lungregionswithsimultaneouslowermeanairwaypressure,comparableminute cumandothercellswasalsoevaluated. ventilationandnoincreaseintheinspiratoryeffortorcardiacoutput. MaterialsandMethods:Prospectivestudyinpatientswithspinalanesthesia Disclosure:Drs.GamadeAbreu,SpiethandKochweregrantedapatenton fororthopedicsurgery,randomizedto27Gor29GQuinckeneedlesandme- noisyPSV.Dr.GamadeAbreureceivedaresearchgrantfromESAtoperform dianorparamedianapproach.ThefirstCSFdrop(alsothesecondin50cases) thisstudy. wascollectedonamicroscopeslideandlefttodryintheopenair,stainedwith References: hemacolorsolutionandanalyzedwithamicroscopebyananatomopathologist 1 GamadeAbreuetal.,Noisypressuresupportventilation:Apilotstudyonanewassisted whohadnopriorknowledgeoftheoriginofthesamples.Presenceofepithelial ventilationmodeinexperimentallunginjury.CritCareMed,inpress. cellsandothercellsorsubstanceswasanalyzed.Dataaremean=SD.Statistics usedt-testandChi-square;significanceforP<0,05). ResultsandDiscussion:Therewere110patientsstudied.Spinalswere55 ESAAP1-5 witheachneedle,halfofeachbymedianandhalfbyparamedianapproach. F.XIIIsubstitutioninpatientsathighriskforintraoperative Weobservedepithelialcellswithnucleusin5cases:4wereparamedianwith bleedingsignificantlyreduceslossofclotfirmness, 27G and 1 paramedian with 29G. Type ofneedle was not related to tissue consumptionoffibrinogenandbloodloss coring(P=0.2),buttheparamedianapproachwas(P<0.05).Scamouscellsap- W.Korte,K.Gabi,V.Filipin,A.Gähler,T.Schnider pearedin65%,meningealcellsin45%andredbloodcellsin41%.In4ofthe 5caseswhereepithelialcellswerepresentwealsoanalyzedtheseconddrop Institutef.Clin.Chemistry&HaematologyandDept.ofAnaesthesiology, anddidnotfindepithelialcells.In75caseswedetectedthepresenceoftalcum Kantonsspital,St.Gallen,Switzerland powder;duetothis,weconducted10casesusingtalcumfreegloves(samples BackgroundandGoalofStudy:Excessiveintraoperativebleedingisassoci- weredriedinaclosedbox)andnotracesoftalcumwerefound. atedwithsignificantmorbidityandmortality.Weandothershaveshownthatfib- Conclusion(s):Inourhands,epithelialcellswerepresentinthefirstdropof rinmonomer(FM)allowspreoperativeriskstratificationforintraoperativeblood CSFin5%ofcasesofspinalanesthesia.Thissuggeststhattissuecoringmay loss duetoanimbalance between availableF.XIIIandprothrombin conver- havethatincidence,whichisofconcernduetopossiblerelationwithintraspinal sion.WehypothesizedthatF.XIIIimprovesmaximumclotfirmness(MCF)and tumors.RejectingthefirstdropofCSFandusingthemedianapproachmight reducesbloodlossinhighriskpatients. reducetheincidenceoftissuecoring,althoughthisremainstobeproven.Also, MaterialsandMethods:Wetestedourhypothesisinaprospective,random- astalcumpresenceintheCSFwasreducedto0from75%whenpowdered ized,doubleblind,placebocontrolledtrialinelectiveabdominalcancersurgery. gloves wereabandoned, itseemsadvisabletousetalcum-freegloveswhen PatientswererandomizedtoreceiveF.XIII(30U/kg)orplaceboinadditionto doingspinalanesthesia.Morestudiesinthisfieldarejustified. controlledstandardtherapy. References: ResultsandDiscussion:Twentytwopatientswereevaluableforaplannedin- 1 RegAnesthPainMed2000;25(2):163–9. terimanalysis.PatientsreceivingF.XIIIshowedanonsignificant8%decrease 2 Spine2004;1;29(1):15–8. Best Abstracts– Runner-up Session 2 ESAAP2-1 MaterialsandMethods:MaleadultWistarratswereused.Focalcerebralis- ImplicationofmitochondrialKATP-dependentchannel chemiawasperformedduring1hourfollowedby24hofreperfusion(I/R).Pre- (mitoK )insevoflurane-inducedpreandpostconditioningin conditioningconsistedof15minexposuretosevofluraneat1MAC(2.6%)72h ATP thebrain beforeischemia(SPRE).Postconditioningwasobtainedbyexposuretosevoflu- raneimmediatelyattheonsetofreperfusion(SPOST)oraftert+5min(delayed S.Adamczyk,M.Simérabet,E.Robin,B.Vallet,G.Lebuffe SPOST).ImplicationofmitoKATPchannelwasassessedbyintraperitonealinjec- DepartmentofAnesthesiologyandIntensiveCare,UniversityHospitalofLille, tionoftheselectiveblocker5-hydroxydecanoate(5HD)oritsselectiveopener Lille,France diazoxide(DZX).Infarctwasassessedbyhistomorphometricquantificationafter BackgroundandGoalofStudy:Sevofluranehasshownexperimentaland 24hofreperfusion.Volumesaremeans±SEM.ANOVAwithLSDposthoctest clinical benefits onmyocardium againstischemia-reperfusion. Wetested the forstatisticalanalysis;significantforp=0.05(*)or0.01(**)vsI/R. neuroprotectiveeffectsofsevofluraneduringlatepreconditioningorpostcondi- Results and Discussion: Preconditioning and immediate postconditioning tioninginaninvivomodeloffocalcerebralischemiaintherat.Implicationof withsevofluranesignificantlyreducedtotalcerebralinfarctby35%and45%. mitoKATPwasalsoevaluated. Cortexandstriatumbothbenefitedoftheprotection.