14高反应性鼻炎医学PPT课件.ppt
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1、耳鼻咽喉头颈外科学耳鼻咽喉头颈外科学 耳鼻咽耳鼻咽喉头颈外科学喉头颈外科学第二篇第二篇 鼻科学及颅面疾病鼻科学及颅面疾病(3)第十一章第十一章鼻黏膜高反应性鼻病鼻黏膜高反应性鼻病第一节第一节变态反应变态反应性鼻炎性鼻炎Respiratory mucosa in noseThe nasal mucosa showed by transmi-ssional electromi-Croscope.The picture of normal mucosa showed by nasal endoscope Nasal hyper-reactivitynNasal cavity:nFirst line
2、of airwaynSensitivity:nrich nerve distributionnMucosal compound:nrespiratory epithelial cells Goblet cell glands(serous or mucous)rich vessels nImmune compound:nToll-like receptors lymphocytes(T,B)serous cells mast cells epithelial cells Response of nose induced by some factorsChallenge factors:envi
3、romentalWeather、temperature、humidityinhalants:Dust、allergen、chemicals pollution most of aboveIntrinsic:nervous、stress or disappoint、depress or anxious Nasal responseProtective Congestion reduce patency of the airway and amount of harmful gas and particles to enter airwayRhinorrheaTo discharge foreig
4、n particles and inflammatory mediators Sneeze rapidly rule out harmful gas and particles hyper-reactivity of Nasal mucosaThe difference of nasal mucosal reaction between physiologic and pathologic condition physiologic pathologic Inducer nervous stress immunologic (allergy)temperature change suddenl
5、y psychologic odor dust endocrine duration 4 days (consecutively)1hpathologic nerve reflex inflammation base (mainly)(mainly)高反应性鼻病高反应性鼻病Definition:Hyperreactive Rhinopathy is symptomic disorder and the reaction of nasal mucosa induced by stimuli exceed normal limitMain including:Allergic RhinitisNo
6、n-allergic rhinitiscold air inducing rhinitisendocrine rhinitisdrug inducing rhinitisnonallergic allergic rhinitis with eosinophiliavasomotor rhinitis(idiopathic rhinitis)Allergic rhinitisAllergic rhinitis is a symptomatic disorder of the nose induced after allergen exposure by an immunoglobulin E(I
7、gE)-mediated inflammation of the membranes lining the noseDifinition of Allergic rhinitisKey point of the difinitionSusceptible individualInduced by allergen exposureIgE mediated mainlyNasal mucosa infalmmationMain symptoms include sneeze,rhinorrhea and obstruction allergenPollen:tree,grass,crop pla
8、nt fugidust mitepet danderMechanism of allergic inflammation-Th2 responseTh2BIL-4变应原变应原Naive ThIgEIL-4IL-5释放释放 炎症介质炎症介质 毒性蛋白毒性蛋白 细胞因子细胞因子释放炎症介质释放炎症介质和细胞因子和细胞因子Eo变应性鼻炎免疫学机制变应性鼻炎免疫学机制以以Th2反应为主的免疫性疾病反应为主的免疫性疾病嗜酸性粒细胞嗜酸性粒细胞肥大细胞和肥大细胞和嗜碱性粒细胞嗜碱性粒细胞速发反应速发反应(Early PhaseReaction)迟发反应迟发反应(Late PhaseReaction)抗原提
9、呈细胞抗原提呈细胞SymptomsNasal obstructionSymptoms1hr daylyLasting4ds weeklysneezeNose runningPale-edema mucosaNose itchHow are the symptoms caused?Irritation of freenerve endings-Itching and sneezingIncreasedmucus production -RhinorrhoeaVasodilation-Mucosa congestionIncreasedvascular permeability-Mucosa oe
10、demaRelationship between up and low airwayMorbidity of asthma in Patients with allergic rhinitis is 3 times more than one who no allergic rhinitis20%of children with allergic rhinitis will occur asthma in life lateRelationship between up and low airwayMucosal inflammation is present in the entire ai
11、rway of patients with allergic rhinitis and/or asthma.Upper airway inflammation is associated with bronchial hyperresponsivenessLower airway remodeling is present in asthmatic,but also in allergic rhinitis patients.Relationship between up and low airwayAllergic rhinitis and asthma are characterized
12、by an inflammatory process that is marked histologically by tissue eosinophils,mast cells,T lymphocytes,macrophages,and epithelial cells.inflammationImportant ConceptOne airway,One diseaseGrowsman-1997Worldwide prevalence Prevalence of Allergic rhinitis in CHINA(2007)Increasing prevalence of ARThe c
13、ause may be associated with factors as follows:Air pollution:exhaust particle;ozone,NO2(nitrogen dioxide),SO2(sulfur dioxide)Life style:unsaturated acidHyper-HygieneThe impact of AR on quality of Live Quality of live(QOL):Sleepingworkstudyentertainmentsocial communication systemic fellingAllergic rh
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