laryngitis lectures慢性喉炎讲座课件

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1、ChronicLaryngitisPreparedbyDr.HiwaAs’adDefinition:Isachronicinflammationofthemucosaofthelarynx.EtiologyFollowsrepeatedacuteattacksbutusuallyitariseinsidiouslydueto:Faultyuseofvoice.Infectionofteeth,tonsil,sinus,andlowerrespiratorytractinfection.Excessivealcoholcon

2、sumptionorsmoking.Dustorirritantfumes.Clinicalclassification:Chronicnonspecificlaryngitis:Chronicsimplelaryngitis.Hyperkeratosisoflarynx(chronickeratosisorleukoplakia).Pachydermialaryngis.Contactgranuloma.Atrophiclaryngitis.Chronicspecificlaryngitis:Tuberculouslar

3、yngitisSyphiliticlaryngitis.Leprosyofthelarynx.Scleromaofthelarynx.Wegener’s(malignant)granulomaofthelarynx.Mycosisofthelarynx.ChronicNonspecificlaryngitisSimplechroniclaryngitisPathology:Hyperaemiaofvocalcord.Edema.Myositisoccursintheintrinsicmuscles.Excessivesec

4、retionduetohyperactivityofthemucousgland.Hyperaemicandedematousstageoftenpassestoahypertrophiconeandrarelytoanatrophicone.ClinicalFeatures:-Hoarseness(intermittentthenpersistent).-Cough(slightlydry).-Sorethroat(verycommon).Chroniclaryngitis:thereishyperemiaofmucus

5、membrane.Odemaofthemarginsofthevocalcord(Rienkesedema)LaryngealappearanceThreetypes:Hyperaemic.Hypertrophic.Edematous.Inalltypesthelarynxisalwaysaffectedbilaterally&symmetrically.Treatment:VocalrestEliminationofirritatingfactorssuchasdustandsmoking.Systemicantibio

6、tics.Carbocisteine(amucolytic)whensecretionarethick.Strippingofthevocalcordsisperformedendoscopicallyinpersistentcases.ChronicNonspecificlaryngitisHyperkeratoisofthelarynx(leukoplakia)Definition:Alocalizedformofepithelialhyperplasiacharacterizedbyleukoplakicraised

7、patchesonthevocalcord.Pathology:Thereishyperplasticchangeintheepithelium,togetherwithextensionofthepapillaeintothecornium;andbasementmembraneremainsintact.Clinicalfeatures:Hoarseness(gradualonset).Examination:thereisawhiteraisedpatchononeorbothvocalcordstheanterio

8、randmiddlethirdsareusuallyinvolved.Mobilityofcordsisnotimpaired.Treatment:-Infectioninthemouth,throatandnosetreated.-Strippingofthecordscansometimesbedo