Paranasal SinusesSinusitisEndoscopyParanasal Sinus DiseasesRhinitisOtorhinolaryngologic Surgical ProceduresNasal PolypsMaxillary SinusEthmoid SinusEthmoid SinusitisMucoceleFrontal SinusEthmoid BoneSphenoid SinusAdministration, IntranasalEndoscopesMaxillary SinusitisChronic DiseaseCerebrospinal Fluid RhinorrheaParanasal Sinus NeoplasmsTurbinatesOrbitSkull BaseNasal SeptumAkinetic MutismOlfaction DisordersTomography, X-Ray ComputedNasal SpraysTreatment OutcomeProspective StudiesNose DiseasesCavernous SinusRetrospective StudiesQuality of LifeCranial SinusesNasal LavageFollow-Up StudiesMagnetic Resonance ImagingSinus of ValsalvaNasal MucosaOtolaryngologyCarotid SinusNasal ObstructionNasal CavityPapilloma, InvertedAdministration, OralCoronary SinusPostoperative ComplicationsOrbital DiseasesOsteitisSinus Thrombosis, IntracranialSick Sinus SyndromePostoperative CareTime FactorsTachycardia, SinusMice, Inbred BALB C