简介:摘要目的探讨剖宫产或产时出血的处理用药,以提高剖宫产手术质量。方法对国内外防治剖宫产出血的处理用药最新研究进展进行综述。结果防治剖宫产出血的一线药物有缩宫素、麦角新碱、钙制剂和前列腺素制剂。结论剖宫产出血时选择药物一定要根据适应症及禁忌症,单用一种药物效果不满意时,可考虑联合用药。
简介:<正>DearSir,IamDrZheSong,fromDepartmentofOphthalmologyofDongfangHospitalAffiliatedtoBeijingUniversityofChineseMedicineinBeijing,China.Iwritetopresentacasereportofthetreatmentofcomplextraumaticretinadetachment,whichhasthreehugebreaks.A35-year-oldman,whowasknockeddownandhurthisrighteyewhileplayingfootball,complainedofblurvisionforaday.Thevisualacuitywere4/20ODand10/20OS.Thecorrectedvisualacuitywere4/20ODand10/20OS.Theintraocularpressurewere12mmHgODand13mmHgOS.Therewasbloodinthecentralvitreousoftherighteye.Onegiantbreakandthreenailtypebreakswerefoundinthetempleretina.Thetempleretinadetached,yetthemacularareawasnotinvolved(Figure1).Andthefundusofthelefteyewasnormal.Bultrasonicscanshowedtherighteyetempleretinadetachment(Figure2).VEPandERGoftheeyeswerenormal.
简介:摘要:本文结合工程案例,分析隧道施工塌方原因,详细介绍塌方长短大管棚处置方案,提出了相应的处理措施及注意事项。关键词:隧道施工;塌方;管棚处理;注浆1工程概况本隧道是一条单洞双车道隧道,为山岭重丘区二级公路隧道。隧道设计行车时速为40km/h;隧道净宽8.5m,即3.5m×2(2车道)+0.25m×2(余宽)+0.5m×2(检修道),净高5m;全隧道共设6个紧急停车带,间距为500~600m,紧急停车带净宽12m,净高5m,加宽带3.5m;隧道路面采用“人字坡”±0.2%。隧道围岩为Ⅳ类围岩,主要由泥灰岩、泥质白云岩夹灰岩、白云岩、粉砂岩构成,以岩质软-硬,中-厚层状构造为主,岩层单斜,受地质构造影响较大,不同岩性层间结合较差,节理发育,岩体以大块状砌体结构为主......