氨溴索大剂量-英文
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Short-termperioperativetreatmentwithambroxolreduces
pulmonarycomplicationsandhospitalcostsafterpulmonary
lobectomy:arandomizedtrial§
MajedRefai*,AlessandroBrunelli,FrancescoXiume´,MicheleSalati,
ValeriaSciarra,LauraSocci,LucaDiNunzio,ArmandoSabbatini
DepartmentofThoracicSurgery,UmbertoIRegionalHospitalAncona,Italy
Received9July2008;receivedinrevisedform28October2008;accepted10November2008;Availableonline13January2009
Abstract
Objective:Toassessinarandomizedclinicaltrialtheinfluenceofperioperativeshort-termambroxoladministrationonpostoperative
complications,hospitalstayandcostsafterpulmonarylobectomyforlungcancer.Methods:Onehundredandfortyconsecutivepatients
undergoinglobectomyforlungcancer(April2006—November2007)wererandomizedintwogroups.GroupA(70patients):ambroxolwas
administeredbyintravenousinfusioninthecontextoftheusualtherapyonthedayofoperationandonthefirst3postoperativedays(1000mg/
day).GroupB(70patients):fluidtherapyonlywithoutambroxol.Groupswerecomparedintermsofoccurrenceofpostoperativecomplications,
lengthofstayandcosts.Results:Therewerenodropoutsfromeithergroupandnocomplicationsrelatedtotreatment.Thetwogroupswerewell
matchedforperioperativeandoperativevariables.ComparedtogroupB,groupA(ambroxol)hadareductionofpostoperativepulmonary
complications(4vs13,6%vs19%,p=0.02),andunplannedICUadmission/readmission(1vs6,1.4%vs8.6%,p=0.1)rates.Moreover,the
postoperativestayandcostswerereducedby2.5days(5.6vs8.1,p=0.02)and2765Euro(2499Eurovs5264Euro,p=0.04),respectively.
Conclusions:Short-termperioperativetreatmentwithambroxolimprovedearlyoutcomeafterlobectomyandmaybeusedtoimplementfast-
trackingpoliciesandcutpostoperativecosts.Nevertheless,otherindependenttrialsareneededtoverifytheeffectofthistreatmentindifferent
settings.
#2008EuropeanAssociationforCardio-ThoracicSurgery.PublishedbyElsevierB.V.Allrightsreserved.
Keywords:Pulmonarylobectomy;Non-smallcelllungcancer;Postoperativecomplications;Ambroxol
1.Introduction
Despitenewtechniquesandrecentadvancesinhospital
carethatareimplementedtoimprovethequalityandreduce
costs,morbidityandhospitalcostsaftermajorlungresection
forlungcancerarestillhigh.
Thoracicsurgeonsarefacedwithanincreasingpopulation
ofelderlypatientswithasignificantprevalenceofchronic
obstructivedisease.Surgeryinthesepatientscanbe
associatedwithincreasedriskofmorbidityandmortality
causedbytheunderlyinglungdisease.
Thispatientpopulationislikelytohaveanincreased
incidenceofsignificantpostoperativepulmonarycomplica-
tionssuchasatelectasis,pneumonia,andacuterespiratory
failurerequiringintubationandmechanicalventilation[1].Thereforeeveryeffortmustbeimplementedtoruleoutor
reducethesecomplications.
Ambroxolisatrans-4[2-amino-3,5-dibromo-benzyl,
amino]cyclohexanol-hydrochloridewhichhasbeenshown
toincreasethenumberandactivityoftype2pneumocytes
[2],andthustoincreasesurfactantlevelsandlecithin/
sphyngomyelinratio[3]andmucociliaryclearance[4].
Weconductedarandomizedclinicaltrialtoassessthe
influenceofperioperativeshort-termambroxoladministra-
tiononpostoperativecomplications,hospitalstayandcosts
afterlobectomyforlungcancer.
2.Patientsandmethods
Thetrialwasdesignedandanalyzedaccordingto
ConsolidatedStandardsofReportingTrials(CONSORT)
recommendationsandchecklist(seeFig.1forCONSORT
flowchart)[5].Simpleunrestrictedrandomizationwasused
toallocatepatientsintothetwogroupsbeforeoperation.
Bothpatientsanddatamanageranalyzingtheoutcomewerewww.elsevier.com/locate/ejctsEuropeanJournalofCardio-thoracicSurgery35(2009)469—473
§Presentedatthe16thEuropeanConferenceonGeneralThoracicSurgery,
Bologna,Italy,June8—11,2008.
*Correspondingauthor.Address:ViaS.Vincenzo5/f,Polverigi60020,Italy.
Tel.:+390715964439;fax:+390715964433.
E-mailaddress:majedit@yahoo.com(M.Refai).
1010-7940/$—seefrontmatter#2008EuropeanAssociationforCardio-ThoracicSurgery.PublishedbyElsevierB.V.Allrightsreserved.
doi:10.1016/j.ejcts.2008.11.015blindedtogroupallocation.Randomizationwasperformed
bycomputerizednumericalsequence.
Samplesizewassettoreachastatisticalpowerof90%to
detectanexpecteddifferenceinpostoperativestayofat
least2days.Exclusioncriteriawerewedgeresection/
segmentectomy(62patients)orpneumonectomy(20
patients),andlungresectionassociatedwithchestwall
resection(4patients).Allpatientsgavetheirinformed
consenttoparticipateinthestudyandtousetheirdataina
prospectivedatabase.Thisstudyprotocolwasapprovedby
thelocalinstitutionalreviewboard(IRB).
Onehundredandfortyconsecutivepatients(females:28,
males:112)undergoinglobectomyforlungcancerfromApril
2006throughNovember2007wererandomizedbysimple
unrestrictedrandomizationintotwogroupsbeforeopera-
tion.GroupA(70patients):ambroxolwasadministeredby
intravenousinfusion(1000mg/day)inthecontextofthe
usualfluidtherapyonthedayofoperationandonthefirst
threepostoperativedays.GroupB(70patients):fluid
therapyonlywasadministeredwithoutambroxol.Onthe
secondandthirdpostoperativedayspatientsinbothgroups
receivedonlytheamountoffluidnecessarytoadminister
ambroxolorplacebo(500ml).
Therewerenodropoutsfromeithergroupandno
complicationsrelatedtotreatment.
Allpatientsweresubjectedtoastrictpreoperative
evaluationandcontraindicationstomajorlungresections
wereaccordingtotheAmericanCollegeofChestPhysician
criteria(ppoFEV1<30%,ppoDLCO<30%,VO2peak<10ml/
kg/min)[6].
Allpatientswereoperatedoninasinglededicated
thoracicsurgerycenterbyqualifiedthoracicsurgeons.
Alllobectomieswereperformedbymuscle-sparinglateral
thoracotomy.Short-termantibioticprophylaxiswithcefazo-
linwasadministered.Postoperativetreatmentwasstandar-dizedforallpatientsandfocusedonearlymobilizationand
physicalrehabilitation.Physicalrehabilitationwassuper-
visedtwiceadaybyaspecialistphysiotherapistwith
standardexercisesaimedatchestphysiotherapyandphysical
rehabilitation.Thoracotomychestpainwascontrolledby
intravenouscontinuousinfusionofnon-opiatesandwas
titratedtoachieveavisualanalogicpainscore(VAS)below
four(range0—10)duringthefirst48—72hafterthe
operation.Patientsweremobilizedassoonaspossibleand
bronchodilatorswereadministeredonlyincaseofan
objectiveevidenceofreversibleobstructionafterbronch-
odilatoradministrationatthepreoperativepulmonary
functiontests(PFTs).
Allpatientsweremanagedinadedicatedthoracicward
withspecializedpersonnelandresortedtointensivecareunit
(ICU)onlyincaseofcardiorespiratorycomplicationsrequir-
ingactivelife-supportingtreatments.
Thefollowingoutcomeswereanalyzed:
Totalcardiopulmonarymorbidity,cardiaccomplications,
pulmonarycomplications,mortality,postoperativestay
andcosts.
Postoperativemorbidityandmortalitywereconsideredas
thoseoccurringwithin30dayspostoperativelyorfora
longerperiodifthepatientwasstillinthehospital.
Forthepurposeofthisstudyandforthesakeof
comparisonwithpreviousstudies[7—9]thefollowing
complicationswereincluded:
Pulmonary,respiratoryfailurerequiringmechanical
ventilationformorethan48h;pneumonia(chestX-rays
infiltrates,increasedwhitebloodcellcount,fever);
atelectasisrequiringbronchoscopy;adultrespiratory
distresssyndrome(ARDS);pulmonaryedema;pulmonary
embolism;M.Refaietal./EuropeanJournalofCardio-thoracicSurgery35(2009)469—473470
Fig.1.ConsolidatedStandardsofReportingTrials(CONSORT)flowchart.