简介:目的探讨鼻腔扩容术对改良悬雍垂腭咽成形术(H—UPPP)治疗效果的影响。方法将有腭咽和鼻腔平面阻塞的中重度阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者30例,按住院床位号分为:A组15例,先行鼻腔扩容术,1周后评估疗效,再行H—UPPP;B组15例,先行H—UPPP,1个月后经多道睡眠监测(PSG)评估疗效,再行鼻腔扩容术。所有结果采用SAS6.12统计软件进行分析。结果所有患者术后6个月,打鼾、憋气、头痛及嗜睡等症状均明显减轻或消失。A组鼻腔扩容术后和H—UPPP后的总有效率分别为66.67%和100%,B组H.UPPP后和鼻腔扩容术后的总有效率分别为86.67%和100%。2组患者经2个平面手术后,呼吸暂停低通气指数(AHI)、最低血氧饱和度(LSaO2)、Epworth嗜睡评分(ESS)及鼾声评分4个指标与单平面手术后和术前比较,差异均有统计学意义(P〈0.05)。术前、单平面手术后及2个平面手术后,AHI、LSaO2、ESS及鼾声评分4个指标,2组间差异无统计学意义(P〉0.05)。各组单平面手术后的AHI和LSaO2与术前比较,差异均有统计学意义(P〈0.05);ESS和鼾声评分2个指标差异无统计学意义(P〉0.05)。术中无腭咽关闭不全或闭锁发生。结论单独行H—UPPP或鼻腔扩容术均能改善AHI和LSaO2,联合治疗能显著提高疗效。先行鼻腔扩容术能增加行H—UPPP时的麻醉方便和安全,提高了治疗有效率。
简介:目的探讨视网膜脱离环扎术后玻璃体腔径改变及屈光度变化,揭示它们之间的变化规律及相互关系.方法采用自动角膜曲率计,眼A超及电脑验光仪对我院46例患者于巩膜环扎术前、术后1周、1个月及3个月进行角膜屈光力,眼轴及屈光度的测量.结果(1)术后1周角膜屈光力,散光值较术前稍增加,无统计学意义.而术后1个月,3个月角膜屈光力,散光值与术前检查基本相同.(2)术后眼轴明显延长,主要表现在玻璃体腔径的改变,近视度亦增加.随时间推移,眼轴(玻璃体腔径)逐渐缩短,近视度减少.但术后1个月,3个月眼轴长度(表现在玻璃体腔径),近视度较术前明显增加.结论巩膜环扎术后玻璃体腔径的改变是导致服轴延长的主要原因,进而引起眼屈光度的改变.
简介:目的探讨改良式小梁切除术联合丝裂霉素C治疗青光眼的临床疗效。方法应用改良式小梁切除术治疗42例(64眼)各型青光眼,术中一次性使用0.4mg/ml丝裂霉素C,术后随访6~12月,观察其临床疗效及其并发症。结果术后1月检查,58眼(90.6%)术后视力有不同程度的提高;术后1周测眼压,所有病例眼压均有不同程度的下降,有48眼(75.0%)眼压低于21mmHg,术后6月测眼压,54眼(84.6%)低于21mmHg;末次随访时,56眼(87.5%)形成弥散扁平的功能性滤过泡,8眼(12.5%)为非功能性滤过泡;总手术成功58眼(90.6%),其中完全成功54眼(84.4%),条件成功4眼(63%),失败6眼(9.4%)。术后主要并发症为:角膜水肿5眼,前房渗出4眼。讨论改良式小梁切除术联合丝裂霉素C治疗青光眼,可有效地减少青光眼术后滤过道瘢痕的形成,充分降低眼压。该方法不需要特殊设备,手术时间短、损伤小,并发症少,手术效果好,是一种安全、有效的治疗青光眼方法。
简介:目的探讨直视下孔源性视网膜脱离复位手术的临床效果。方法孔源性视网膜脱离16例(16眼)由同一术者进行外路手术,术前三面镜下,间接检眼镜下仔细严格定位裂孔,术中肉眼下大致定位,全部行环扎并裂孔变性区外垫压,根据裂孔大小冷凝或非冷凝,尽可能安全放液,根据眼压,裂孔形态,部位选择注入气体填充物,定期观察术后视力、眼内反应和视网膜复位情况。结果16例视网膜脱离手术患者,术后随访半年,视网膜完全复位14眼(87.5%),视力较术前提高12只眼(75%),不变3只眼(18.75%),不完全复位少量视网膜下液吸收缓慢1眼,再次脱离行玻璃体切割手术视网膜复位1眼(6.25%)。最好矫正视力0.1以上10只眼(62.5%)。结论手术前的仔细检查定位裂孔,环扎术避免遗漏裂孔及变性区均为直视下外路治疗孔源性视网膜脱离提供安全有效的保证,为眼科医师提供新的视网膜脱离手术方式的选择,且手术时间较短,操作相对简单,疗效有明确的保证。
简介:目的:探讨改良式额肌腱膜瓣悬吊术矫治儿童重度上睑下垂的长期临床疗效。方法:回顾性分析2009-01/2011-12在我科收治的儿童重度上睑下垂患者83例114眼,采用改良式扇形额肌腱膜瓣悬吊术进行矫治,分析术后上睑下垂矫正效果和上睑缘弧度、重睑形成及倒睫、结膜脱垂等并发症发生情况。随访观察5a。结果:术后第5a,矫正满意和基本矫正者共有84眼(73.7%),部分矫正30眼(26.3%),手术效果满意。术后并发症包括倒睫4眼(3.5%),其中3例3眼上睑内侧1/3灰线处缝牵引缝线牵引lwk后消失,1例1眼行二次手术;结膜脱垂2眼(1.8%),应用皮质类固醇激素眼药水点眼,加压包扎lwk后结膜脱垂均消失;术后无1例发生暴露性角膜炎、眼睑外翻、睑球分离、眼睑成角畸形、血肿形成、感染等并发症。术后上睑回退和外侧重睑皱襞消失是长期随访最常见的问题。结论:改良式额肌腱膜瓣悬吊术矫治儿童重度上睑下垂长期疗效满意,效果持久稳定,安全可靠。
简介:目的探讨用改良圈匙娩核并注重粘弹剂应用对防止小切口非超声乳化白内障囊外摘出人工晶体植入术并发症的作用。方法用改良圈匙娩核并注重粘弹剂应用对355例白内障行小切口非超声乳化白内障人工晶体植入术。结果术后三天矫正视力≥0.5者291眼达82%,脱残339眼(95.5%)脱盲315眼(98.9%)。术后角膜水肿39眼,占10.98%均在3~6天后恢复透明。后囊破裂7眼,占1.97%,前房出血4眼,占1.13%。瞳孔轻度变形10眼,占2.8%,暂时性高眼压4眼,占1.13%。结论在行小切口白内障囊外摘出人工晶体植入时,应用改良后的圈匙娩核并注重粘弹剂应用,就会明显减少并发症,达到良好的效果。
简介:AIM:Tostudytheimpactofscleralflapposition,underwhichtheposteriorchamberintraocularlenses(PC-IOL)weresulcus-fixedbytrans-scleralsuture,oncorneaastigmatism.METHODS:Twenty-sixaphakicorcataracteyeswerecomprisedinthisprospectivenoncomparativecaseseriesstudy.Eleveneyeshadtraumaticcataractremovedwithoutsufficientcapsularsupport,3hadblunttraumawithsubluxatedtraumaticcataract,8hadundergonevitreoretinalsurgeryand4hadcongenitalcataractremoved.Theaverageagewas54years(range21-74years),with17menand7women.ThefoldablePC-IOLwasfixedinsulcusbytrans-scleralsuture.TheincisionforIOLimplantationwasmade1mmposteriortolimbusalongthesteepestmeridianofcornea,whilescleralflapstoburytheknotsoftrans-scleralsutureweremadealongtheflattestmeridian.Allthesurgerieswereperformedbyasingledoctor(MaL),andthefollowupwasatleast13months(range13-28months).Thepreoperative,3monthsand1yearpostoperativecornealcurvaturealongthesteepestandflattestcorneameridianandoverallcorneaastigmatismwerecompared.RESULTS:Thecurvaturealongthesteepestmeridianchangedfrom44.25±2.22Dpreoperativelyto44.08±2.16Dat3monthspostoperatively,and43.65±5.23Dat1yearpostoperatively(P>0.05);thecurvaturealongtheflattestmeridianchangedfrom41.24±2.21Dpreoperativelyto43.15±3.94Dat3monthspostoperatively,and42.85±5.17Dat1yearpostoperatively(P<0.05);andthesurgeryinducedastigmatism(SIA)oncorneawascalculatedbyvectoranalysis,whichwas2.42±2.13Dat3monthspostoperatively,and2.18±3.42Dat1yearpostoperatively,thedifferencewasstatisticallysignificant(P<0.05).CONCLUSION:Thescleralflapmadealongtheflattestmeridian,underwhichtheposteriorchamberintraocularlenses(PCIOL)weresulcus-fixedbytrans-scleralsuture,cansteepenthecorneainvaryingdegrees,thusreducingpreexistingcornealastigmatism.
简介:AIM:ToinvestigatetheroleofBrn-3bindifferentiationprocessofstemcellsderivedfromretinalMiillercellsintotheganglioncell.METHODS:ThepassageculturemethodofMiillercellsfromretinaofnewbornSpragueDawleyratswascarriedoutbyrepeatedincompletepancreaticenzymedigestionmethod.Thecellsweredetectedbyfluorescenceactivatedcellsorter(FACS),immunohistochemistrytechnologyandreversetranscription-polymerasechainreaction(RT-PCR)todeterminethepurity.Thethirdpassageofcellswasinducedintheserum-freededifferentiationmedium.TheexpressionofthespecificmarkersKi-67andnestinofretinalstemcellswasmeasuredbyRT-PCRandWesternblot.Thecellproliferationofretinalstemcellswasdetectedby5-Ethynyl-2’-deoxyuridine(Edu)staining.Thecellswererandomlydividedinto5groupsasfollows:groupA:Brn-3bsiRNAgroup;groupB:Brn-3bcontrolsiRNAgroup;groupC:pGC-Brn-3b-greenfluorescentprotein(GFP)group;groupD:pGC-GFPgroup;groupE:controlgroup(withoutanyhandling).ThepurifiedMullercellswereculturedfor3-7d,then,thepercentageofganglioncellswascountedbyimmunofluorescencestaining.RESULTS:FACSdemonstratedthepurityofretinalMullercellswasmore97.44%.Afewsphericalcellspheresappeared.Immunofluorescencestainingshowedthatstemcellswithinthesphereswerepositiveforretinalstemcell-specificmarkersnestin(redfluorescence,92.94%±6.48%)andKi-67(greenfluorescence,85.96%±6.04%).Meanwhile,RT-PCRanalysisshowedcellspheresintheculturetohaveexpressedabatteryoftranscriptscharacteristicofstemcellssuchasnestinandKi-67,whichwereabsentintheMullercells.WesternblotanalysisfurtherconfirmedtheexpressionofnestinandKi-67inthecellspheresbutnotintheMullercells.Edustainingshowedmostofthenucleiwithinthecellsphereswerestainedred(82.80%±6.65%),suggestingthenewcellsphereshadthecapacityforeffectiveproliferation.ThestatisticsresultshowedthedifferencebetweenBrn-3bsiRNAgroupand