F e a s i b i l i t
y afoctjund laicaf motor evoked laitnetop nitoringmo roteduce e nth umber of f
a l s e - p o s i t i v
e stluser during lacivrec neisp yrgersu
R y u t
a ka,suoMat M .,1.D oirsuhYa Takeshima , M . P,.D h. H,1.D ironobu Hayashi , M . PD.,,2.D.h Tsun 巴iron T
a k a t a n i
, M. Tサ,3.D.hP Fumihiko ,aurimshNi .,M.D ,1.D.hP orihcI Nakagawa, M.D., ..DhP 1, iushYas M
o
toyama, D.,M. ,1.D.hP kraP001,1_S-gunoY , 1,..DM ,.D.hP Masahiko Kawaguchi, ,M.D. Ph.D 人and
H i
r・0i N戸kl.e,asak D.,M. 1.D.hP
1 D e p a r t m e n
t f No,rygersuoure Nara Ml巴acid isreviUn ザ,,aarhihsaK napaJ
2 D e p a i t m e n
t f Aonesth ,yg巴olois Nara Micaled ,ytisrevinU rabahiasK , anapJ
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n of Clartne lacinilC ,yrotarobaL Nara Ml巴acid yitsrevinU ,latipsoH aharbiKas , napaJ
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rresponding r:othau
Y a s u h i r
o Takeshima
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epartm 巴ntofN ,yre巴grusoru Nara Medic al Univ yt巴isr olhoSc of Mneedici
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40 S,ohc-ojih rahaishKa , ,aarN ,152-8463 napaJ
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1
E - m a i l
: mhiesakt @naramed ・c .a.uoi
Key Words: cla巴civr enips ;lo; rtnoc laicaf evern ; eslafitisop- i;evpoartn ev巴itar ;gniortinomrouen motor
巴voked laitnetop
Running :eltiT ctdjunA laicaf MEP 且s a lortnoc cnila巴civr nips 巴yregrus
A b s t r a c
t word c:tnuo 279
T巴t wxord count:主盟l~おL
Number iferfo 巴r巴nce: 3s 7
Numb 巴Iof tselba and frugi 巴: 2 s (3/latot )5
Numb er of v:soedi 0
A b s t r a c t
O b j e c t
: evitisop-eslaF ni仕aopev巴itar muscle motor evoked laitnetop (mMEP) ginrtoniom stluser due to s
y s t e m i
c stceffe f aoscitehtsen and placigoloisyh ghanc 巴sceunitno bote a gnignellach ussi 巴.houghAlt c
o n t r o
l MEPs rdroce 巴dfrom th巴edtceffanu edis ueralufes iroffitned シmg aむue pevitiso ,langis ht巴r巴era
no mesuscl on th巴rppeu lrorweo seitimertxe iotcdun 巴lortnoc MEPs i cnlacivre nips 巴.yregrus ,eroferehT t
h i
s yudts was cedctduon cotyfiral afilanoitidd MEPs dvire 巴dfrom flaica sclemus fancylbisae evres sa c
o n t r o l
s rotcdue 巴eslaf evit四isop mMEP mginortnio stluser cnilacivre enips .yregrus
M
ethods: stneitaP who uerwentnd lacivrec enips yregrus otar iunoitutitsn who d ndi t eoecneierpx p
o s t o p e r a t i v
e nc巴igoloru noitaroireted were rylevitcepsorte deiduts . mMEPs were ieducnd ithw
仕ainarcsna
l imalamaxsupr .noitalumits laicaF MEPs (fMEPs) wer 巴sbus 巴qu巴y iltn ducend thwi s
u p r a t h
r 巴ldohs.noitalumits mMEP and squbseu 巴y rltn derdoec 岱P wE1. aveforms were pderia gniurd hace moment gnriud .yregrus The ilaitin wriap as rderdaeg tsah巴nilesab 巴.A singi 白t dnac enilce mniMEP and fMEP adtuiplm 巴was ddeinfe >sa80% and >50% d巴enilc compar 巴dw bhit as,e巴nil pser.yle巴vitc llA mMEP asrmal wer 巴deerdisnoc slaf.se巴v-itisop Based on two dtnereffi la紅mctir , m巴air MEP aenol ro b
o t h
mMEP and fMEP , setar slaffo 巴-vitisop 巴mMEP mngritoion stluser w巴r.de巴taluclac
R e s u l t s
: eehr-ttyenTw stneitap were ideducln tnisih ,yduts rroc 巴ngdipons 1ot2 p0sria of mMEPs and fMEPs. ishiT dedulcn 23 ilaitin and 79 sntequsebu pa江. Bsased on t aeh rmla noiretirc of mMEP aenol , 71 f
a l s e - p o s i t i v
e stluser ).5%(21 were orvseb 巴d.B出巴don t aeh marl noiretirc of b mtho MEP and fMEP , 5 f
a l s e - p o s i t i v
e stluser %)36.( w巴r巴,dveresbo which was syltnacifingi reffid 巴t cnompared motMEP aenol (
d i f f e r e n c e
, 5.12%; 95% cecnedfino lavretni , 2 -.723;.1% p<0.)10.
C o n c l u s i o n s
: fMEPs htmig be u adse cson 仕s tlo rocude 巴slaf 巴・evitisop mMEP mgnirotion stluser ni c
e r v i c a
l enips .yregrus
I n t r o d u c t i o n
Complex lanips yerrgus asidetacioss th a wi tnacifingis oksir f nlcaiglooreu .yrujni Thus , p
r e v e n t i n
g eivtarpeotosp cgioolurne sticifed a si m司r concerno srof einp .snoergus Many r
e p o r t s
6・ ・17723034・3・・ have idetacidn eehtssenevitceff of ievitarepoartn g.inoritonomurne itIs c
u r r e n t l
y becoming a dreiquer evitsissa equnichet drofgnitcete impending lauren damage gnridu n
e u r o l o g i c a
l ,yregrus gndiulnci einps eηgrus 人Muscle motor evoked laitnetop (mMEP) m
o n i t o r i n g
, lopeddeve motonitor fehtlanoitcnu ytirgetni of t deh gcendines motor 4ys,hwapat 3・1 a
l l o w
s erofylra noitcteed and rlasreve of slanip icord yrujn ginurd complex enpis eηgrus _,21 N
e v e r t h e l e s s
, nscercon about rehtytilibaile of in仕eivtaerpoa mMEP mgorinonit dniylia lacinilc p
r a c t i c
e .inaemr The main cseau of concern isievitarepoartn ytilibatsni of t mMEP weh aveform due t vosouira lcaigursn-on retni son「itnev such a ascitehtsen ,stnega snoitautculf bnilood ersusepr o
r
body tempera 回re, among 42.srehto I5'y2tilibatsn of the mMEP waveform seusca evitisop-eslaf r
e s u l t s 2 2
; ,suht rehtytilibaile of ievitarepoartn mMEP mringonito becomes .elbanoitseuq C
o n t r o
l mMEPs 企om也 巴iffanu 巴tc巴dsdi巴,which ra巴t ioncneulfn 巴dby slacigru noitalupinam , 訂C u
s e f u
l irofitned ちrg tniylur evitisop slangis bygn巴idulcx elbissop srotacidni of th巴tsys 巴nせscetceff fo a
ncit巴ehts stnega and placigoloisyh ngcha 巴sdgniru .yregrus gnIlarene nlacigr巴usoru ecitcarp , a once s
i g n i f i c a n
t esaerced mniMEP aedutilpm bsah e巴nddetcete ylevitarepoartni on t aehceff ed t,edis we can r
e f e
r tot cehlortno mMEP adutilpm 巴d巴devir tromf uehiffan 巴tc巴ds tedi coh巴ck f sroetsy mic eiff巴s btc 巴rof巴 g
i v i n
g ht巴onegrus .mrala eFor,elpmax lnibarum nips ,巴yregrus w巴canr 巴r tef mo MEP wav 巴smorf romf 4