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InfantileDiarrhea
outlinePrevalenceDefinitionPredisposingfactorsEtiologyPathogenesisManifestationsDiagnosis DifferentialdiagnosisTreatmentPrognosisPreventionrotavirusdiarrheaenterotoxigenicE.coli(ETEC)invasivebacterialenteritisfungus
Question:What’skindofstoolisnormal?stool
Definition——isasyndromewithincreasedstoolfrequencyandchangesofcharacterofstoolwhichcausedbypathogensinfectionorotherreasons.Waterystoolwith/withoutmucous,bloodystoolFrequency≥3timesaday,Stoolvolume10g/kg.dThemainreasoncausemalnutritionandgrowthretardation
PredisposingfactorsImmaturedigestivefunctionGastricacidityDigestiveenzymesRapidgrowthPoorimmunefunction(hostdefenses)ImmunoglobulinsDisturbedentericbacterialfloraFormulafeeding
Etiologyinfectiondiarrheanon-infectionIntestinalextraintestinaldietallergyweather
InfectiousfactorsVirus(70%)RotavirusAdenovirusAstrovirus,NorwalkvirusCalicivirusNorovirusEnterovirusBacteriaEnteropathogenicE.coliCampylobacterjejuniShigellaSalmonellaStaphylococcusaureusClostridiumdifficileFungiCandidaalbicansParasite
DevelopedcountryDevelopingcountry
NoninfectiousfactorsDietWeatherColdHotImproperdietAllergyLactasedeficiency
PathogenesisOsmoticdiarrheaSecretorydiarrheaExudativediarrheaAbormalmotilitynotone,buttogether
Intestinalvillicryptepithelium
virusenteritisvirusduplicatemucosalinjury,villidamagedisaccharidaseactivitycarrierglucose,fatabsorption
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