電刺激失神經(jīng)支配環(huán)勺后肌聲帶外展功能研究.pdf

1、復(fù)旦大學(xué)碩士學(xué)位論文電刺激失神經(jīng)支配環(huán)勺后肌聲帶外展功能研究姓名：林岳鑫申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：耳鼻喉科指導(dǎo)教師：遲放魯20020801復(fù)旦大學(xué)項(xiàng)十論文英文摘要StudyonElectricalStimulationofvocalcardabductionofDenervatedPosteriorCrieoarytenoidMuscleAbstractManagementofbilateralrecurrentlaryngealnerv

2、eparalysishasbeenadifficultproblemNoneoftheavalablemethordsofrehabilitationfortheimpairedrespiratorydegulutoryandphonatoufunctionsoftheparalyzedlarynnxarecompletelysatisfactoryAlthroughtherearemanylitraturereportedthestu

3、dyoflaryngealpacingonanimalandprimaryusedonclinic，mostoftheexperimentsstudyatonceorshort—term，notstudyonlongtermThepatientswhoneedreconstractionoffunctionsoftheparalyzedlaryngxusuallyobserveonlongtimeincilinicalworkToobt

4、aintheoptimalelectricalstimulusparametersofdifferenttimeandsuitablechanceofplacedpacingofdenervatedposteriorcricoarytenoidmuscle，15catswereobservedatO，1，4，6monthsafterunilateralrecurrentlaryngealnervewascutbya2cmneurecto

5、myThechangeofactionpotentialandelectricalstimulusvalueoftheposteriorcricoarytenoidmuscletoproducemaximumvocalfoldabductioneverystagewererecordedInallanimalsobviousvocalfoldabductionwereobservedduringelecteicalstimulation

6、beforethercurrentnervewascutforfourmonths，butnotinanimalsaftersixmonthsWefoundthatsquare—wavesignalsof30—50Hzand25mAand1msecdurationresultedinoptimalstimulationItwasconcludedthatelectricalpacingwaseffectivetestorevocalfo