彭靜
【摘要】 目的:評價Ahmed青光眼引流裝置植入術(shù)與傳統(tǒng)小梁切除術(shù)(Trab)治療難治性青光眼的療效。方法:運用Cochrance系統(tǒng)評價方法,使用相關(guān)數(shù)據(jù)庫檢索關(guān)于Ahmed引流閥植入術(shù)與傳統(tǒng)Trab術(shù)治療難治性青光眼效果比較的隨機對照試驗(RCT)文獻。觀察兩種手術(shù)的眼壓下降幅度百分比(IOPR%)及使用與未使用抗青光眼藥物達到目標IOP成功率。結(jié)果:共293例患者(293只眼)被納入此次Meta分析,其中Ahmed組146只、Trab組147只;兩組術(shù)后隨訪結(jié)束時IOPR%比較,差異無統(tǒng)計學意義[MD=-0.59,95%CI=(-7.48,6.29),P>0.05];術(shù)后1年無論是否抗青光眼藥物,Trab組達到目標IOP成功率均低于Ahmed組(P<0.05)。結(jié)論:在治療青光眼的手術(shù)中,傳統(tǒng)Trab術(shù)與Ahmed引流閥植入術(shù)組有相似的降低IOP效果,但Ahmed引流閥植入術(shù)達到目標IOP成功率較高。
【關(guān)鍵詞】 Ahmed青光眼引流裝置; 小梁切除術(shù); 青光眼; Meta分析
【Abstract】 Objective:To evaluate the efficacy of Ahmed glaucoma drainage device implantation and trabeculectomy(Trab)in treatment of refractory glaucoma.Method:The Cochrance system evaluation method was used to retrieve the literature of randomized controlled trials(RCT)on the efficacy of Ahmed drainage valve implantation compared with traditional Trab in treatment of refractory glaucoma.The IOP reduction rate(IOPR%)and the success rate of IOP with or without antiglaucoma drugs were observed.Result:A total of 293 patients(293 eyes)were included in the Meta-analysis,included 146 in Ahmed group and 147 in Trab group.At the end of follow-up,the IOPR% in two groups was compared,the differences was not statistically significant[MD=-0.59,95% CI=(-7.48,6.29),P>0.05].After surgery 1 year,whether or not anti-glaucoma drugs were used,The successful rate of achieving IOP of Trab group were lower than those of Ahmed group(P<0.05).Conclusion:In glaucoma surgery,traditional Trab and Ahmed drainage valve implantation have similar effect in reducing IOP,but the success rate of Ahmed drainage valve implantation is higher.
【Key words】 Ahmed glaucoma drainage device; Trabeculectomy; Glaucoma; Meta-analysis
First-authors address:Meizhou Peoples Hospital,Meizhou 514000,China
doi:10.3969/j.issn.1674-4985.2019.16.042
難治性青光眼是指傳統(tǒng)的濾過手術(shù)或聯(lián)合抗代謝藥物和最大耐受性抗青光眼藥物難以控制眼壓(IOP)的正常范圍,難治性青光眼的治療一直是較為困難的問題之一。在眼科臨床工作中,一些患者經(jīng)常多次手術(shù)仍不能控制IOP的增加,醫(yī)療器械制造商和臨床的眼科醫(yī)生一直在不斷努力,并積極探索治療青光眼及其房水引流。近年來,房水引流裝置在難治性青光眼的治療中取得了突破性進展,隨著局部藥物代謝的應用和外科技術(shù)的提高,難治性青光眼的手術(shù)成功率也隨之提高[1]。在臨床治療青光眼中,最常用的方法是小梁切除術(shù)(Trab)及青光眼引流閥。近年來,Trab術(shù)成功率較低的問題愈發(fā)明顯,因此引流閥越來越多地應用于傳統(tǒng)手術(shù)成功率低的患者。引流閥降低IOP的機制為通過前房引流管將房水引流至眼球赤道部的結(jié)膜下外植體處,隨后由周邊的毛細血管及淋巴管吸收[2]。其特殊的單向壓力敏感控制閥門能控制引流裝置在IOP為8 mm Hg(即1.064 kPa)的條件時開放[3]。因為具有較好的可靠性及較高的成功率,傳統(tǒng)的Trab術(shù)被多數(shù)臨床眼科醫(yī)生選為治療青光眼的首要手術(shù)方式。同樣,青光眼引流裝置(GDD)植入術(shù)在全球范圍內(nèi)也得到大多數(shù)臨床工作者認可。一些研究發(fā)現(xiàn),GDD植入術(shù)與傳統(tǒng)Trab術(shù)治療青光眼的安全性無差異,而一些研究已經(jīng)表明前者優(yōu)于后者[4]。近年來國內(nèi)外傳統(tǒng)Trab術(shù)與引流閥治療青光眼效果比較的隨機對照試驗(RCT)文獻被納入到此次研究,并采用Cochrane系統(tǒng)評價方法進行分析,比較兩種手術(shù)方式的治療效果,并對比術(shù)后1年患者使用和不使用抗青光眼藥物達到目標IOP的成功率?,F(xiàn)報道如下。
綜上所述,傳統(tǒng)Trab術(shù)與Ahmed引流閥植入術(shù)組有相似的降低IOP效果,但前者的成功率明顯低于后者,因此Ahmed引流閥植入術(shù)其療效肯定,值得臨床推廣。然而,在其手術(shù)后的預后研究方面仍缺乏足夠病例數(shù)的臨床追蹤觀察,且由于此次研究所納入的臨床RCT文獻的樣本量過少,手術(shù)后的隨訪時間沒有嚴格控制,因此也存在一些缺陷。當前,國內(nèi)外開角型青光眼的臨床治療主要使用Ahmed引流閥植入術(shù),對于閉角型青光眼治療是否可以采用Ahmed植入術(shù)尚無統(tǒng)一結(jié)論。Ahmed閥植入術(shù)治療難治性青光眼,目前階段雖然仍不夠成熟和缺乏大量的臨床證據(jù),但根據(jù)患者情況合理進行手術(shù),Ahmed青光眼閥植入術(shù)仍不失為一種安全有效地手段。
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(收稿日期:2018-10-22) (本文編輯:董悅)