蔣亞新,季德剛,馬寧,郝志強(qiáng)
(吉林大學(xué)中日聯(lián)誼醫(yī)院 肝膽胰外科,吉林 長(zhǎng)春 130000)
膽囊結(jié)石是肝膽外科常見疾病,發(fā)病率約為7%[1]。因膽囊結(jié)石行膽囊切除的患者中約20%合并膽總管結(jié)石(common bile duct stones),其發(fā)病率隨年齡增長(zhǎng)逐漸升高,61~70歲的患者達(dá)到31%,71~80歲的患者達(dá)到48%[2]。膽囊結(jié)石合并膽總管結(jié)石的傳統(tǒng)術(shù)式是膽囊切除、膽總管切開取石、T管引流術(shù),隨著腹腔鏡技術(shù)及內(nèi)鏡技術(shù)的快速發(fā)展,開腹手術(shù)已逐漸被微創(chuàng)術(shù)式取代。目前微創(chuàng)術(shù)式主要有兩種:其一,腹腔鏡下膽囊切除術(shù)(LC)+膽總管探查取石術(shù)(LCBDE);其二,逆行性胰膽管造影(ERCP)/經(jīng)十二指腸鏡Oddi括約肌切開術(shù)(EST)+LC[3-4]。當(dāng)前對(duì)兩種術(shù)式的效果及安全性研究已經(jīng)有很多且有爭(zhēng)議,對(duì)于不同年齡段患者的選用標(biāo)準(zhǔn)是否統(tǒng)一尚無(wú)共識(shí)。本文通過(guò)回顧我科近年來(lái)收治的老年膽囊結(jié)石合并膽總管結(jié)石患者的臨床資料,對(duì)比兩種術(shù)式,探討老年膽囊結(jié)石合并膽總管結(jié)石微創(chuàng)治療術(shù)式的選擇。
回顧性分析本院肝膽胰外科2012年10月—2 0 1 6年4月診治的6 0歲以上[5-6]的膽囊結(jié)石合并膽總管結(jié)石老年患者9 4例,其中4 5例行LC+LCBDE(LC+LCBDE組),49例行ERCP/EST+LC(ERCP/EST+LC組)。LC+LCBDE組男23例,女22例;平均年齡(68.36±5.16)歲。ERCP/EST+LC組男28例,女21例;平均年齡(68.8±5.83)歲。
納入標(biāo)準(zhǔn):術(shù)前B超、上腹部CT或磁共振膽胰管造影(MRCP)等影像學(xué)檢查明確診斷為膽囊結(jié)石合并膽總管結(jié)石。排除標(biāo)準(zhǔn):⑴ 肝內(nèi)膽管結(jié)石;⑵ 術(shù)中探查發(fā)現(xiàn)膽管囊狀擴(kuò)張或膽管狹窄;⑶ 合并嚴(yán)重的心、肺、腎等功能障礙,不能耐受手術(shù)者;⑷ 有上腹部手術(shù)史。
兩組患者性別、年齡、最大結(jié)石直徑、膽管直徑、術(shù)前總膽紅素、丙氨酸轉(zhuǎn)氨酶、術(shù)前合并癥(腹痛、黃疸、膽源性胰腺炎、膽管炎、高血壓、糖尿病、心血管系統(tǒng)疾?。┑炔町悷o(wú)統(tǒng)計(jì)學(xué)意義(均P>0.05)(表1)。
表1 兩組患者一般資料Table 1 General data of the two groups of patients
1.2.1LC+LCBDE組手術(shù)采用四孔法,術(shù)中維持腹壓在12 mmHg(1 mmHg=0.133 kPa),解剖膽囊三角,確切尋及膽囊管及膽囊動(dòng)脈后,結(jié)扎離斷膽囊動(dòng)脈,距離膽總管0.5cm處雙重結(jié)扎鎖夾閉膽囊管,暫不切斷膽囊管以做牽引,顯露并穿刺明確為膽總管,在十二指腸上緣切開膽總管前壁正中約0.8~1.5cm,術(shù)中聯(lián)合使用纖維膽道鏡取石,如結(jié)石較大或有嵌頓,可在液電碎石后用網(wǎng)籃取出,最后探查肝內(nèi)外膽管無(wú)結(jié)石殘留后退出膽道鏡,視術(shù)中膽道及取石情況一期縫合或留置T管,切斷膽囊管,取出膽囊,常規(guī)放置肝下緣引流管1根,術(shù)后2~3 d拔除,留置T管患者,術(shù)后6~8周經(jīng)T管行膽道照影,確認(rèn)無(wú)殘留結(jié)石后拔除。
1.2.2ERCP/EST+LC組行ERCP,明確膽管解剖情況、結(jié)石數(shù)目、大小及位置后,在導(dǎo)絲引導(dǎo)下行EST,置入網(wǎng)籃取石,根據(jù)結(jié)石情況酌情使用碎石取石器或球囊進(jìn)行取石,再造影未發(fā)現(xiàn)殘留結(jié)石后,留置鼻膽引流管(于LC術(shù)后1~2 d造影無(wú)異常拔除)。術(shù)后常規(guī)禁食水24 h,靜點(diǎn)抑酸藥、生長(zhǎng)抑素、抗生素預(yù)防急性胰腺炎及膽管炎。監(jiān)測(cè)血、尿淀粉酶變化,血淀粉酶超過(guò)正常上限值3倍以上,同時(shí)合并典型的胰性腹痛診斷急性胰腺炎[7]。術(shù)后2~7 d,若患者病情平穩(wěn),血淀粉酶正常,無(wú)發(fā)熱、腹痛、腹脹、惡心嘔吐等癥狀,再行腹腔鏡下膽囊切除術(shù)(LC)。
比較兩組患者手術(shù)成功率、結(jié)石殘留率、住院時(shí)間、住院費(fèi)用、術(shù)后并發(fā)癥發(fā)生率,以及遠(yuǎn)期隨訪結(jié)果。
使用SPSS 21.0 軟件進(jìn)行統(tǒng)計(jì)學(xué)分析,計(jì)數(shù)資料采用χ2檢驗(yàn),計(jì)量資料滿足正態(tài)分布者采用t檢驗(yàn),用均數(shù)±標(biāo)準(zhǔn)差描述,不滿足正態(tài)分布者采用秩和檢驗(yàn),用中位數(shù)(第一四分位數(shù))[M(Q1)]描述,P<0.05為差異有統(tǒng)計(jì)學(xué)意義。
LC+LCBDE組45例,手術(shù)成功42例(包括1例陰性探查,疑為結(jié)石術(shù)前排入腸道;1例因結(jié)石較多無(wú)法一次取凈而殘留結(jié)石,于術(shù)后6周經(jīng)T管竇道取石成功),成功率93.3%。膽總管一期縫合3例,留置T管39例。3例中轉(zhuǎn)開腹手術(shù),其中2例炎癥較重、腹腔內(nèi)粘連致密,1例術(shù)中出血腹腔鏡下無(wú)法確切止血。術(shù)后出現(xiàn)早期并發(fā)癥共4例(8.9%),1例因意外牽拉導(dǎo)致T管滑脫,出現(xiàn)膽汁漏,經(jīng)十二指腸鏡置入鼻膽引流管,并充分腹腔引流2周后痊愈。另有膽瘺、切口感染、肺部感染患者各1例,對(duì)癥處理后治愈。
ERCP/EST+LC組49例,手術(shù)成功44例(包括結(jié)石殘留1例,留置鼻膽引流管7 d后行二次ERCP取凈結(jié)石;陰性探查2例,疑為結(jié)石術(shù)前排入腸道),成功率89.8%。ERCP失敗3例,2例乳頭位于十二指腸憩室插管困難,1例結(jié)石過(guò)大無(wú)法取出,均轉(zhuǎn)行LCBDE。中轉(zhuǎn)開腹2例,由于LC術(shù)中肝門區(qū)嚴(yán)重粘連,腹腔鏡下操作困難。術(shù)后出現(xiàn)并發(fā)癥5例(10.2%),其中急性胰腺炎4例,膽管炎1例,對(duì)癥支持治療后好轉(zhuǎn)。
兩組患者在手術(shù)成功率、結(jié)石殘留率、術(shù)后并發(fā)癥方面差異均無(wú)統(tǒng)計(jì)學(xué)意義(P>0.05);LC+LCBDE組住院時(shí)間(P=0.015)及住院費(fèi)用(P<0.001)明顯少于ERCP/EST+LC組(表2)。
表2 兩組治療結(jié)果比較Table 2 Comparison of the treatment results between the two groups
8 1例術(shù)后隨訪6~4 8個(gè)月,失訪1 3例(LC+LCBDE組6例,ERCP/EST+LC組7例),隨訪率86.2%。LC+LCBDE組術(shù)后1例出現(xiàn)急性膽管炎。ERCP/EST+LC組1例于2年后結(jié)石復(fù)發(fā),再次行ERCP取石成功,并有1例出現(xiàn)急性膽管炎,另2例死于與本次研究不相關(guān)的疾病。兩組患者結(jié)石復(fù)發(fā)、膽道感染發(fā)生率均無(wú)統(tǒng)計(jì)學(xué)差異(均P>0.05),均未發(fā)生膽道狹窄、胰腺炎、膽管惡變(表3)。
表3 兩組遠(yuǎn)期隨訪結(jié)果比較[n(%)]Table 3 Comparison of the long-term follow-up results between the two groups [n (%)]
LC+LCBDE與ERCP/EST+LC是目前外科治療膽囊結(jié)石合并膽總管結(jié)石主要的兩種術(shù)式,兩者同為微創(chuàng)技術(shù),均有創(chuàng)傷小、恢復(fù)快、患者痛苦少等優(yōu)點(diǎn)[8-10]。老年患者病情復(fù)雜多變,器官功能衰退,常合并有其他系統(tǒng)疾病,手術(shù)風(fēng)險(xiǎn)相對(duì)較大,預(yù)后差。對(duì)于老年患者兩種術(shù)式哪一種更有優(yōu)勢(shì),值得商榷。
本研究中兩組的手術(shù)成功率和手術(shù)并發(fā)癥差異不顯著,LC+LCBDE組手術(shù)成功率93.3%,術(shù)后并發(fā)癥發(fā)生率8.9%;ERCP/EST+LC組手術(shù)成功率89.8%,術(shù)后并發(fā)癥發(fā)生率10.2%,與Bansal等[11]研究的結(jié)果相近。LC+LCBDE組平均住院費(fèi)用(37 735±9 777)元,平均住院時(shí)間(11.51±3.51)d(P<0.001);ERCP/EST+LC組平均住院費(fèi)用(48 260±10 680)元,平均住院時(shí)間(13.39±3.77)d(P=0.015)。表明了LC+LCBDE在住院費(fèi)用及住院時(shí)間上的優(yōu)勢(shì)。
有研究[12]認(rèn)為老年患者應(yīng)用LC+LCBDE與年輕患者同樣安全有效。此術(shù)式一次手術(shù)解決了膽囊和膽管兩個(gè)問(wèn)題,創(chuàng)傷小、恢復(fù)快。聯(lián)合使用術(shù)中膽道鏡可直視膽道內(nèi)情況,操作方便,成功率高。該術(shù)式對(duì)結(jié)石的數(shù)量沒(méi)有太多限制,且可應(yīng)用于較大的膽總管結(jié)石。本組1例患者最大結(jié)石直徑達(dá)到2.5cm,聯(lián)合使用術(shù)中膽道鏡,行液電碎石后取石成功。最大優(yōu)點(diǎn)是LC+LCBDE不損傷Oddi括約肌,保留了膽道的正常開閉功能。但腹腔鏡手術(shù)操作復(fù)雜,術(shù)者需掌握嫻熟的操作技術(shù),手術(shù)時(shí)間長(zhǎng),術(shù)后多需要留置T管,由于腹腔鏡手術(shù)對(duì)腹腔臟器的干擾輕,T管形成竇道慢,帶管時(shí)間較傳統(tǒng)開腹手術(shù)長(zhǎng),本組患者T管帶管時(shí)間6~8周,無(wú)形中減小了微創(chuàng)的優(yōu)勢(shì),T管膽汁外引流可造成機(jī)體生理功能紊亂,且有意外脫落可能,老年患者多有其他系統(tǒng)的疾患,風(fēng)險(xiǎn)較大。本研究中LC+LCBDE組留置T管39例,一期縫合3例,3例一期縫合患者術(shù)后恢復(fù)良好,均未出現(xiàn)明顯并發(fā)癥。國(guó)外有研究[13]發(fā)現(xiàn)一期縫合是同樣安全有效的,而且一期縫合住院時(shí)間和術(shù)后并發(fā)癥發(fā)生率都明顯降低,國(guó)內(nèi)文獻(xiàn)[14]報(bào)道一期縫合與放置T 管效果相似,術(shù)后住院時(shí)間明顯縮短,但膽瘺的相關(guān)風(fēng)險(xiǎn)因素尚需要大樣本的數(shù)據(jù)資料研究確定,黃強(qiáng)等[15]則認(rèn)為膽總管結(jié)石患者多有過(guò)膽道感染病史,一期縫合無(wú)法保證膽道低壓和無(wú)菌。因此臨床工作中須嚴(yán)格把握一期縫合的適應(yīng)證:⑴ 膽總管直徑>0.8cm;⑵ 膽總管內(nèi)無(wú)結(jié)石殘留;⑶ 膽總管下端通暢,無(wú)狹窄,膽管壁炎癥輕,無(wú)明顯水腫;⑷ 無(wú)胰腺炎、重度黃疸及肝功能損害;⑸ 熟練的腹腔鏡下縫合技術(shù)[16-17]。
ERCP/EST+LC應(yīng)用于特定患者有其獨(dú)到之處,對(duì)于合并急性化膿性膽管炎生命體征不穩(wěn)定或膽源性胰腺炎腹腔內(nèi)炎癥較重的老年患者,腹腔鏡膽總管探查術(shù)難度大、時(shí)間長(zhǎng),手術(shù)及麻醉風(fēng)險(xiǎn)較大。而對(duì)于此類患者行ERCP留置鼻膽引流管,可迅速解除膽道梗阻,降低黃疸水平,控制膽道感染,待患者臨床癥狀及全身情況好轉(zhuǎn)后,再施行LC。術(shù)前行ERCP還可以提前了解膽囊管及膽道情況,為下一步的LC手術(shù)提供參考,減少術(shù)中損傷膽總管的幾率[18]。而且避免了長(zhǎng)期帶T管,避免了由于膽汁外引流造成的生理功能及水電解質(zhì)紊亂,減少了膽道逆行感染的可能,提高了術(shù)后生活質(zhì)量。然而EST近期并發(fā)癥率約為8%~10%[19],包括急性胰腺炎、急性膽管炎、出血、十二指腸穿孔等,其中以急性胰腺炎最為常見。EST切開了Oddi括約肌,破壞了其生理屏障功能,可能導(dǎo)致十二指腸液逆行進(jìn)入膽總管內(nèi),引起多種遠(yuǎn)期并發(fā)癥,如膽管炎、膽總管結(jié)石復(fù)發(fā)、膽管癌等[20]。Ding等[21]對(duì)221例患者術(shù)后隨訪8~10年認(rèn)為ERCP/EST+LC組的結(jié)石復(fù)發(fā)率明顯高于LC+LCBDE組,Noble等[2]對(duì)91例70歲以上的老年患者隨訪1.38~3.15年發(fā)現(xiàn)兩組的術(shù)后遠(yuǎn)期并發(fā)癥無(wú)顯著差異。而本研究術(shù)后隨訪6~48個(gè)月,ERCP/EST+LC組僅1例出現(xiàn)結(jié)石復(fù)發(fā),兩組各出現(xiàn)1例急性膽管炎,無(wú)統(tǒng)計(jì)學(xué)意義。因此兩種術(shù)式術(shù)后遠(yuǎn)期并發(fā)癥發(fā)生率的差異還須要更多的臨床研究來(lái)證實(shí)。EST有一定的適應(yīng)證,對(duì)于直徑<1.5cm,數(shù)量少于5枚的膽總管結(jié)石,取石成功率高,當(dāng)結(jié)石直徑>1.5cm時(shí),耗時(shí)長(zhǎng)且難度大[22]。LC與ERCP/EST的間隔時(shí)間仍然存在著爭(zhēng)議,文獻(xiàn)[23]報(bào)道ERCP/EST取石術(shù)后應(yīng)盡早行LC,膽囊小結(jié)石有再次掉入膽總管的風(fēng)險(xiǎn),且術(shù)后3~7 d膽囊及膽囊三角水腫明顯,手術(shù)難度增加。但筆者認(rèn)為有效的膽管減壓,可減輕膽管炎癥,從而減輕腹腔粘連,而且膽囊結(jié)石再進(jìn)入膽總管的幾率低,身體一般狀態(tài)較差的老年患者不能耐受連續(xù)的兩次手術(shù),因此應(yīng)根據(jù)具體情況確定兩次手術(shù)的間隔時(shí)間。
近年來(lái),相繼有LC術(shù)中行ERCP/EST的報(bào)道,此術(shù)式一次手術(shù)同時(shí)解決膽囊結(jié)石和膽總管結(jié)石,能縮短住院時(shí)間,降低住院費(fèi)用,更能減少患者的痛苦,避免了等待LC過(guò)程中再次繼發(fā)膽總管結(jié)石的可能,若術(shù)中ERCP/EST失敗,可以立即轉(zhuǎn)行LCBDE或開腹手術(shù)[24]。但是術(shù)中行ERCP/EST,需具備術(shù)中X射線及內(nèi)鏡設(shè)備的一體化手術(shù)間,內(nèi)鏡醫(yī)生及外科醫(yī)生須嫻熟配合,同時(shí)要在術(shù)中調(diào)整患者的體位,導(dǎo)致該手術(shù)過(guò)程較復(fù)雜,技術(shù)要求更高,目前只有具備相當(dāng)規(guī)模的醫(yī)院才可能開展,很難推廣普及[25]。
LC+LCBDE和ERCP/EST+LC均是治療膽囊結(jié)石合并膽總管結(jié)石安全、有效的治療方案,兩者手術(shù)成功率、并發(fā)癥發(fā)生率無(wú)明顯差異。對(duì)于多數(shù)患者LC+LCBDE住院時(shí)間更短,住院費(fèi)用更低,對(duì)膽總管結(jié)石的大小、數(shù)量無(wú)限制,且保護(hù)了Oddi括約肌,應(yīng)作為首選。但對(duì)于病情嚴(yán)重合并凝血功能障礙、重度黃疸、急性化膿性膽管炎、膽源性胰腺炎以及心肺功能差的老年患者,ERCP/EST+LC是更好的選擇[26]。臨床醫(yī)生應(yīng)根據(jù)老年患者的病情及技術(shù)條件靈活選擇治療方案。
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