学科分类
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5 个结果
  • 简介:AIM:Toreportthecytologyresultsof25-gaugetransconjunctival(25G-TSV)diagnosticvitrectomyincasessuspiciousforintraocularlymphoma(IOL),andcomparetheresultstothosereportedintheliterature.METHODS:Clinicalandcytopathologicalrecordsof18vitreousbiopsyspecimensobtainedvia25G-TSVdiagnosticvitrectomyin12patientssuspiciousforIOLwerereviewedretrospectively.Areviewoftheliteratureinregardstothediagnosticyieldsofvitreousspecimensobtainedvia25-gaugeand20-gaugediagnosticvitrectomyinsuspectedcasesofIOLwasperformed.RESULTS:Eighteeneyesfrom12patientswithclinicalsuspicionofIOLunderwentdiagnostic25G-TSV.ThecytopathologicalinvestigationsdemonstratedIOLin15eyes(83.3%).Vitreousanalysiswasnon-diagnosticin3eyes(16.7%).CONCLUSION:Twenty-five-gaugediagnosticvitrectomyyieldsadequatesampleforcytologicalevaluationofthevitreousincasessuspiciousforIOL.Thediagnosticresultsofthe25G-TSVinthecurrentstudyaresuperiortothosereportedfor20-gaugevitrectomybutequivalenttothosereportedfor25G-TSVinthepublishedliterature.

  • 标签: 25 计量器 vitrectomy 20 计量器 vitrectomy intraocular 淋巴瘤
  • 简介:AIM:Tocomparetheclinicaloutcomesofcombined25-gaugeparsplanavitrectomy(PPV)andphacoemulsification/posteriorchamberintraocularlens(PC-IOL)implantationwithvitrectomyalonesurgeryinpatientswithvariousvitreoretinaldiseases.METHODS:Atotalof306eyes(145withPPValoneand161withphaco-vitrectomy)wereenrolledinthisretrospectiveanalysis.Thesurgicalapproachwas25-gaugePPVcombinedwithphacoemulsificationandPC-IOLimplantationatthesametimeineyesinphaco-vitrectomygroupandonlyPPVineyesinvitrectomyalonesurgerygroup.Themainoutcomemeasureswerepostoperativeclinicaloutcomesincludedanteriorchamberinflammation,changesinintraocularpressure(IOP)andbestcorrectedvisualacuity(BCVA).RESULTS:Themostcommonpostoperativecomplicationwasanteriorchamberreactionwhichhashigherincidenceinphaco-vitrectomygroup(P<0.001).Themeanpostoperative1stdayIOPofvitrectomyalonegroupwassignificantlylowerthanthatofphaco-vitrectomygroup(16.3±5.8mmHgvs17.8±8.1mmHg,respectively,P=0.02).Hypotony(IOP(8mmHg)wasnotdifferentbetweengroupsinthepostoperative1stday(P>0.05).Themeanpreoperativevisualacuitywasnotdifferentbetweengroups(1.6±0.9logMARvs1.8±0.9logMAR,respectively,P>0.05).However,themeanvisualacuitywasdecreasedinvitrectomyalonegroupatthefinalvisitcomparedtophaco-vitrectomygroup(1.2±0.8logMAR,0.9±0.7logMAR,respectivelyP<0.05).CONCLUSION:Twenty-fivegaugePPVcombinedwithphacoemulsificationsurgeryisasafeandefficientprocedure,whichcanbepreferredinphacicpatientswithavarietyofvitreoretinaldiseasescomparedtovitrectomyalone.Despiteimprovedoutcomes,thisapproachisnotfreeoflimitationsasanteriorchambercomplicationsespeciallywithcombinedsurgery.

  • 标签: PARS plana VITRECTOMY PHACOEMULSIFICATION small gauge
  • 简介:目的:探讨术前注射曲安奈德(TA)联合25G微创玻璃体视网膜手术(vitreoretinalsurgery,VRS)治疗增生型糖尿病性视网膜病变(proliferativediabeticretinopathy,PDR)的效果。方法:选取我院眼科需行VRS治疗的PDR患者108例108眼随机分为两组,VRS+TA组:VRS术前1wk行玻璃体腔注射TA的患者54例;VRS组:直接行VRS治疗患者54例,比较两组患者手术情况、术前、术后3mo裸眼视力、最佳矫正视力,术前、术后1wk,1、3mo眼压和并发症情况。结果:VRS+TA组手术时间、电凝率、医源性裂孔率和术中出血率显著短于或低于VRS组,差异有统计学意义(P〈0.05),而两组患者眼内填充物比较无统计学差异(P〉0.05);两组患者术后3mo裸眼视力和最佳矫正视力较术前均得到显著提高,差异有统计学意义(P〈0.05),两组间比较差异无统计学意义(P〉0.05);VRS+TA组术后1、3mo眼压较术前显著升高,差异有统计学意义(P〈0.05),两组间比较差异无统计学意义(P〉0.05);VRS+TA组前房渗出率显著低于VRS组,差异有统计学意义(P〈0.05),但两组并发症总发生率差异无统计学意义(P〉0.05)。结论:PDR患者行VRS治疗前1wk注射TA,可降低手术难度,缩短手术时间,并减少术中、术后并发症,利于患者术后视力改善。

  • 标签: 增生型糖尿病性视网膜病变 25G微创玻璃体视网膜手术 曲安奈德
  • 简介:目的观察1,25(OH)2D3对高糖诱导牛视网膜血管内皮细胞(BRECs)中血管内皮生长因子(VEGF)的表达水平变化及对细胞凋亡水平的影响。方法将分离培养的BRECs分为三组,分别为正常糖组、高糖组和高糖处理组。正常对照组细胞培养液含5mmol/L葡萄糖,高糖组细胞培养液含30mmol/L葡萄糖,高糖处理组细胞培养液含30mmol/L葡萄糖和50nM,1,25(OH)2D3。培养48h后收集细胞蛋白。蛋白免疫印迹法检测细胞VEGF及细胞凋亡相关蛋白Bax和Bcl-2表达水平;PI/Hoechst双染色法检测细胞凋亡。结果相比于正常糖组,高糖组中VEFG水平和Bax/Bcl-2比值显著增加;而在高糖处理组中表达水平远远低于高糖组,差异均有统计学意义(P〈0.05)。高糖的细胞凋亡水平高于正常糖组,而经过1,25(OH)2D3处理后,其细胞凋亡水平则有所下降,差异均有统计学意义(P〈0.05)。结论1,25(OH)2D3可以抑制高糖诱导BRECs中VEGF表达增加及细胞凋亡。

  • 标签: 维生素D 人视网膜血管内皮细胞 细胞凋亡