简介:摘要钱秋海教授潜心致力于内分泌系统疾病及临床教学30余载,积累了丰富的经验。笔者跟师学习,颇有心得,现从病因病机,治疗经验,病案举例,自我体会等方面对导师治疗黄褐斑经验做出介绍,以期对临床有所帮助。
简介:摘要目的调查慢性皮炎湿疹患者中常见的接触性变应原并探讨其与患者的性别、年龄及临床特征之间的相关性.方法对2013年7月至2014年12月在北京医院皮肤科门诊就诊的252例慢性皮炎湿疹患者进行瑞敏标准变应原系列斑贴试验,应用统计学方法比较常见变应原阳性率的高低与慢性皮炎湿疹患者的性别、年龄、病程、皮疹发生部位、个人过敏史和家族过敏史的相关性.结果252例患者斑贴试验总阳性率37.70%,变应原阳性率位居前5位的依次是硫酸镍、芳香混合物、对苯二胺基质、重铬酸钾、卡巴混合物.男性患者重铬酸钾、对苯类混合物和卡巴混合物三种变应原的阳性率高于女性患者.老年组(≥60岁)的卡巴混合物阳性率高于非老年组;非老年组的硫酸镍阳性率明显高于老年组.有个人过敏史、皮疹泛发的患者的总阳性率较高.结论慢性皮炎湿疹患者斑贴试验的总阳性率<40%;主要变应原为硫酸镍、芳香混合物、对苯二胺基质、重铬酸钾、卡巴混合物;变应原阳性率的高低与患者的性别、年龄、个人过敏史及发病部位有一定关联.关键词慢性皮炎湿疹;斑贴试验;变应原Analysisonpatchtestresultsin252patientswithchronicdermatitis/eczemaYANGMin,BaoYing-qiu,CHANGJian-min(DepartmentofDermatology,BeijingHospital,Beijing100730,China)AbstractObjectiveToinvestigatecommonallergensamongchronicdermatitis/eczemapatientsandthecorrelationbetweenthesecommonallergensandpatients’gender,age,andclinicalcharacteristics.MethodsWeusedRuiminstandardallergensseriestopatchtest252patientswithchronicdermatitis/eczemainouroutpatientdepartmentfromJuly2013toDecember2014.Correspondingstatisticalmethodswereusedtoanalyzethecorrelationbetweenthepositiveratesofcommonallergensandpatients’gender,age,durationofthedisease,locationanddistributionofthelesion,individualhistoryofallergy,andfamilyhistoryofallerGgy.ResultsTheoverallpositiverateoftestedallergensin252patientswas37.70%.Thefivemostcommonpositivetestedallergensare(fromfirsttofifth)nickelsulfate,fragrancemix,4-phenylenediaminebase,potassiumdichromate,andcarbamix.Malepatientshadhigherpositiveratesforpotassiumdichromate,paraGbensin,andcarbamixcomparedtofemalepatients.Thepatientsinelderlygroup(above60yearsold)hadhigherpositiverateforcarbamixandsignificantlylowerpositiveratefornickelsulfatecomparedtonon-elderlygroup.Thepatientswithindividualhistoryofallergyorgeneralizedrashhadhighertotalpositiverateoftestedalergensthanthosewithnohistoryofallergyornon-generalizedrash.ConclusionThetotalpositiverateofpatchtestinginchronicdermatitis/eczemapaGtientsis<40%.Themainallergensfoundinourstudyincludenickelsulfate,fragrancemix,4-phenylenediaminebase,potassiumdichromate,andcarbamix.ThepositivKeeryatweosrodfsseveralallergenswererelatedtopatients’gender,age,individualhistoryofallergy,andthedistributionofrash.chronicdermatitis/eczema;patchtest;allergens中图分类号R758文献标识码A文章编号1008-6315(2015)12-1024-02
简介:土地利用规划现状的成果多以CAD的DWG或DXF格式存储,图斑边界作为其最基本单位,一般采用闭合的多段线表示。矢量化过程中可能会产生多段线不闭合、折返或自相交等情况。错误的边界不仅造成图斑拓扑关系的异常,也影响图斑面积的准确计算及统计,会对土地利用规划现状造成不良后果。主要应用C++及ObjectARX二次开发技术研究在CAD环境下异常图斑边界的自动检测与校正算法,通过实例验证该算法在提高工作效率的同时可保证数据的精度和质量。