内镜下套扎联合经皮经肝TH胶栓塞治疗肝硬化食管胃底静脉曲张的临床应用

目的评价内镜下套扎(EVL)联合经皮经肝曲张静脉TH胶栓塞术(PTVE)治疗肝硬化食管胃底静脉曲张出血的远期疗效。方法 44例肝硬化食管胃底静脉曲张出血患者,先行食管曲张静脉的内镜下套扎治疗,1周后再行TH胶PTVE,栓塞食管胃底曲张静脉区域及其来源血管。联合治疗术后定期复查胃镜,观察曲张静脉消失情况,随访治疗后曲张静脉复发率及再出血率。结果 44例食管胃底静脉曲张患者,32例食管曲张静脉基本消失,消失率72.7%;8例胃底静脉曲张基本消失,消失率100%;12例食管静脉曲张程度明显减轻,总有效率100%。随访6~39个月,平均25.6个月,5例食管静脉曲张复发,复发率11.4%;3例再出血,再出血率6.8%。结论内镜下套扎治疗能机械性地消除食管曲张静脉,经皮经肝TH胶栓塞能栓塞食管胃底曲张静脉区域及其供血血管,二者联合能达到协同作用,具有更好的远期疗效。     

门脉高压症食管胃底静脉曲张的内镜治疗

20世纪90年代，内镜下食管静脉曲张结扎治疗(EVL)作为内镜下食道静脉曲张硬化剂注射疗法(ES)的替代疗法，其疗效和安全性逐渐为学术界所认可。EVL的原理与弹性套圈结扎内痔的原理相似。研究发现，结扎局部可产生缺血性坏死、急性无菌性炎症、浅溃疡及疤痕所致的静脉腔闭塞。内镜下曲张静脉硬化和结扎治疗可有效控制90%以上患者的出血，内镜下曲张静脉结扎治疗与硬化治疗一样有效．     

内镜下组织胶注射联合套扎治疗急性胃食管静脉曲张出血的临床应用

目的探讨内镜下组织胶注射联合套扎治疗急性胃食管静脉曲张出血的临床价值。方法23例临床确诊为肝硬化急性胃食管静脉曲张破裂出血患者,均于出血稳定12h内采用胃曲张静脉三明治法组织胶注射后联合食管曲张静脉套扎治疗,术后2周、3个月进行内镜随访。观察治疗后再出血率、死亡率、食管胃静脉曲张程度。结果所有患者均一次成功止血。6例患者于术后2周,再次行EVL术。食管胃静脉曲张程度明显减轻,食管静脉治疗有效率95．65％,胃底静脉曲张治疗有效率91．30％。随访期3个月内无一例再出血及死亡病例。结论内镜下组织胶注射联合套扎是治疗胃食管静脉曲张急性出血一种安全可靠的方法。     

经皮经肝组织粘合剂栓塞联合内镜下套扎治疗食管静脉曲张的临床应用

目的 探讨经皮经肝组织粘合剂(TH胶)栓塞(PTVE)联合内镜下套扎(EVL)治疗食管静脉曲张的合理性和临床疗效.方法 23例食管静脉曲张患者先行PTVE使TH胶栓塞胃冠状静脉主干及胃底贲门周围静脉,1个月后对食管黏膜下曲张静脉行内镜下套扎治疗.结果 该组患者TH胶未栓塞食管下段曲张静脉,PTVE后静脉曲张缓解,但未完全消失;联合EVL后17例患者静脉曲张基本消失,消失率73.9%.21例行1次套扎治疗,2例行2次套扎治疗,平均套扎次数1.1次/例.随访3～31个月(平均19.2个月),静脉曲张复发或加重3例(13.1%),2例(8.7%)患者门脉高压性胃病出现少量出血.结论 经皮经肝TH胶栓塞能阻断冠状静脉主干、食管胃底周围血管等曲张静脉的供血血管,而内镜下套扎治疗则消除食管下段黏膜下曲张静脉,二者联合可优势互补,从而取得更好的远期疗效.     

三腔单囊管压迫胃底静脉前后食管曲张静脉压力的变化

目的: 研究肝硬化食管静脉曲张患者在放置三腔单囊管压迫胃底静脉前、后食管曲张静脉压力的变化.方法:8例肝硬化食管静脉曲张患者在单胃囊三腔管牵引下, 采用50 g/L鱼肝油酸钠行食管静脉内注射. 在单胃囊三腔管牵引前、后测曲张静脉的压力变化情况, 并观察注射后针孔出血情况.结果: 单胃囊三腔管压迫胃底静脉前、后食管曲张静脉内的压力改变有显著性差异(t = 5.55, P<0.005). 经单胃囊三腔管压迫后再予以硬化剂注射治疗后, 未发生涌血, 2例为少量渗血, 其余无出血.结论:硬化治疗时, 改良的三腔单胃囊管牵引可有效降低食管曲张静脉内的压力, 使硬化治疗的疗效更确切、简便、安全.     

经皮经肝组织粘合剂栓塞治疗食管静脉曲张的疗效观察

目的观察经皮经肝组织粘合剂（TH胶）栓塞治疗食管静脉曲张的远期效果。方法经皮经肝TH胶栓塞治疗食管静脉曲张47例，术后定期复查胃镜及CT，了解食管下段曲张静脉内TH胶转归和静脉曲张消失情况。结果45例食管静脉曲张患者术后显效率100％，随访6～52个月，平均（31±22）个月，静脉曲张复发10例；随访过程中出血4例，再出血率8．9％。胃镜及cT随访显示，食管黏膜下曲张静脉内TH胶逐渐脱失，而食管旁和胃底贲门周围静脉内TH胶长期滞留栓塞。结论经皮经肝栓塞术能使TH胶到达食管下段的黏膜下曲张静脉，使曲张静脉长期闭塞，能有效的治疗食管静脉曲张，预防复发。     

食管胃静脉曲张超声内镜介入治疗进展及操作技巧（含视频）

详细介绍了内镜超声引导下食管、胃静脉曲张介入治疗的技术优势,结合门静脉高压时食管、胃曲张静脉的病理解剖与血流改变特点,阐明内镜超声引导下食管胃曲张静脉精准断流术的技术理念。应用图片与视频举例说明内镜超声引导下食管胃曲张静脉精准断流术与弹簧圈置入联合组织胶注射术治疗食管、胃曲张静脉的操作过程与技巧。     

小剂量硬化剂加固对食管静脉曲张术后的影响

目的探讨在密集套扎疗法的基础上进行硬化加固治疗对于食管静脉曲张复发的防治作用。方法对食管静脉曲张套扎治疗后食管曲张静脉消失或基本消失的患者进行硬化剂加固治疗,从齿状线开始依次向上在残存小曲张静脉内与血管旁粘膜下层注射5％鱼肝油酸钠,每点注射1—2ml,每次共注射10—14ml。观察其对静脉曲张消失后复发的预防作用。结果加固治疗组49例共行硬化治疗132次,平均2．7次,最多治疗4次。随访12～25个月,平均18个月。结果40例（81．9％）患者未发现食管静脉曲张再出现,原有细小静脉明显减轻或消失,9例复发。加固组与单纯套扎组再出血率有明显差异（10．2％对23．4％,P〈0．05）;超声内镜检查显示加固治疗组食管曲张静脉发现率明显低于单纯套扎组（42．9％对76．6％,P〈0．01）;加固治疗组与单纯套扎组穿通支血管检出率无明显差异（42．8％对57．4％,P〉0．05）。治疗后未发现严重并发症。结论套扎治疗后小剂量硬化剂加固治疗可显著减少套扎术后残留的食管曲张静脉、防止闭塞消失的静脉再通、预防再出血,有助于提高结扎术的长期疗效,延缓静脉曲张的复发。     

食管静脉曲张——从血管解剖基础到内镜下治疗

食管的静脉系统结构非常复杂,包括食管内静脉和食管外静脉。在食管的下段,根据食管静脉的结构特征,食管可以分为胃区、栅栏区、穿支区和干区4个区。在血液引流方面,颈部、胸部和腹部食管分别流入不同的静脉血管。门静脉高压时,由于门脉血管内静脉压增高,胃左静脉、胃后静脉和胃短静脉成为输入血管,食管各层的血管出现扩张,特别是深静脉明显扩张,形成内镜下可见的3～4条迂曲的曲张静脉。曲张静脉的血液来自胃区血管和穿通支血管,存在单纯胃区供血、单纯穿通支供血和二者同时供血三种情况。食管静脉曲张的内镜下治疗包括套扎和硬化治疗,两种治疗方法各有利弊。理解食管静脉的正常解剖结构和血液引流对于理解食管静脉曲张的发病机制、异位栓塞的途径、制定合理的、个体化的内镜治疗方案具有重要意义。     

多层螺旋CT门静脉血管成像与内镜对食管、胃静脉曲张诊断的比较研究

目的对比研究多层螺旋CT门静脉血管成像(CTP)和内镜对食管、胃静脉曲张的诊断。方法采用16排多层螺旋CT门静脉血管成像,对57例临床和实验室检查提示门静脉高压的患者进行CTP,观察门静脉及其分支走形、分布,并结合横断面图像仔细观察食管和胃有无静脉曲张,并记录其部位、曲张静脉深浅、观察曲张静脉来源、有无其他部位曲张静脉或其他病理情况。同期对这些病例行胃镜检查,观察食管、胃是否存在静脉曲张及其他病变。结果CTP显示食管及胃静脉曲张病例51例,其中胃底静脉曲张合并食管静脉曲张39例,单纯胃底静脉曲张9例,胃底静脉曲张合并胃体静脉曲张3例。内镜发现食管及胃底静脉曲张46例,其中胃静脉曲张合并食管静脉曲张24例,单纯胃静脉曲张5例,单纯食管静脉曲张17例。CTP可发现内镜无法诊断的肌层或管腔外静脉曲张。结论CTP可清晰显示门静脉高压患者食管、胃底静脉曲张及主要侧支血管的走行、分布。在食管静脉曲张检查方面,CTP与内镜效果相当,CTP有几例假阳性,可作为普通内镜检查的良好补充;对于胃静脉曲张的检查,CTP效果较胃镜敏感,且CTP可清晰显示内镜无法观察的胃腔周围和食管周围静脉曲张。     

EVS、EVS+EVL续贯EVS和EVL续贯EVS治疗食管静脉曲张的疗效比较

目的:比较内镜下食管静脉曲张硬化治疗(EVS)、EVS EVS加套扎(EVL)续贯EVS和EVL续贯EVS治疗食管静脉曲张的疗效.方法:乙型病毒性肝炎肝硬化食管静脉曲张破裂出血患者130例,随机分为EVS治疗组50例,EVS EVL续贯EVS组40例,EVL续贯EVS组40例,比较3组食管静脉曲张的消失率、并发症、硬化剂总用量,患者住院天数和远期复发出血率.结果:三组患者治疗后食管静脉曲张消失率无差异;EVS组硬化剂应用总量、治疗次数和住院天数都高于EVS EVL续贯EVS组,EVL续贯EVS组(95.64±37.51 mL vs 55.90±38.93 mL,32.15±26.97 mL;3.64±1.32 vs 1.85±1.18,1.35±0.88;25.92±8.69 vs 20.6±5.00 d,17.55±4.62 d;P均<0.05),而后两组之间没有差异;EVL续贯EVS组食管静脉曲张复发率高于另外两组(45% vs 12%,20%,P<0.05),而后两组间没有差异.3组间再出血发生率及并发症的发生率没有差别.结论:EVL续贯EVS和EVS EVL续贯EVS在食管静脉曲张的治疗上优于单纯EVS,尤其后者兼具EVL和EVS的优点.     

内镜黏膜切除术在切除大肠息肉中的应用

目的观察内镜黏膜切除术在切除大肠息肉中的应用价值。方法收集173例经结肠镜诊断的大肠息肉,用内镜黏膜切除术法予以摘除,观察创面情况和患者并发症发生率。结果 173例患者均顺利摘除,无出血和穿孔发生,且创面较常规电凝摘除浅。结论内镜黏膜切除术用于切除大肠息肉是安全、有效的。     

Propofol use in endoscopic retrograde cholangiopancreatography and endoscopic ultrasound

Compared to standard endoscopy,endoscopic retrograde cholangiopancreatography(ERCP)and endoscopic ultrasound(EUS)are often lengthier and more complex,thus requiring higher doses of sedatives for patient comfort and compliance.The aim of this review is to provide the reader with information regarding the use,safety profile,and merits of propofol for sedation in advanced endoscopic procedures like ERCP and EUS,based on the current literature.     

Evolving endoscopic surgery

Since the days of Albukasim in medieval Spain, natural orifices have been regarded not only as a rather repugnant source of bodily odors, fluids and excreta, but also as a convenient invitation to explore and treat the inner passages of the organism. However, surgical ingenuity needed to be matched by appropriate tools and devices. Lack of technologically advanced instrumentation was a strong deterrent during almost a millennium until recent decades when a quantum jump materialized. Endoscopic surgery is currently a vibrant and growing subspecialty, which successfully handles millions of patients every year. Additional opportunities lie ahead which might benefit millions more, however, requiring even more sophisticated apparatuses, particularly in the field of robotics, artificial intelligence, and tissue repair (surgical suturing). This is a particularly exciting and worthwhile challenge, namely of larger and safer endoscopic interventions, followed by seamless and scarless recovery. In synthesis, the future is widely open for those who use together intelligence and creativity to develop new prototypes, new accessories and new techniques. Yet there are many challenges in the path of endoscopic surgery. In this new era of robotic endoscopy, one will likely need a virtual simulator to train and assess the performance of younger doctors. More evidence will be essential in multiple evolving fields, particularly to elucidate whether more ambitious and complex pathways, such as intrathoracic and intraperitoneal surgery via natural orifice transluminal endoscopic surgery (NOTES), are superior or not to conventional techniques.     

Meta-analysis comparison of endoscopic papillary balloon dilatation and endoscopic sphincteropapillotomy

AIM: To assess endoscopic papillary balloon dilatation (EPBD) and endoscopic sphincteropapillotomy (EST) for common bile duct (CBD) stone removal using a meta-analysis. METHODS: Randomized controlled trials published from 1990 to 2012 comparing EPBD with EST for CBD stone removal were evaluated. This meta-analysis was performed to estimate short-term and long-term com-plications of these two treatments. The fixed random effect model or random effect model was established to analysis the data. Results were obtained by analyz-ing the relative risk, odds ratio, and 95%CI for a given comparison using RevMan 5.1. Statistical significance was defined asP < 0.05. Risk of bias was evaluated us-ing a funnel plot. RESULTS: Of the 1975 patients analyzed, 980 of them were treated with EPBD and 995 were treated with EST. Of the patient population, patients in the EPBDgroup were younger (OR=-1.16, 95%CI:-1.49 to 0.84, P<0.01). There were no significant differences in gender proportion, average size of stones, number of gallstones, previous cholecystectomy, the incidence of duodenal diverticulum, CBD diameter or the total follow-up time between EST and EPBD groups. Com-pared with EST, the total stone clearance in the EPBD group decreased (OR=0.64, 95%CI: 0.42 to 0.96,P=0.03), the use of stone extraction baskets significantly increased (OR=1.91, 95%CI: 1.41 to 2.59, P<0.01), and the incidence of pancreatitis significantly increased (OR=2.79, 95%CI: 1.74 to 4.45, P<0.0001). The incidence of bleeding (OR=0.12, 95%CI: 0.04 to 0.34, P<0.01) and cholecystitis (OR=0.41, 95%CI: 0.20 to 0.84, P=0.02) significantly decreased. The stone re-currence rate also was significantly reduced in EPBD (OR=0.48, 95%CI: 0.26 to 0.90, P=0.02). There were no significant differences between the two groups with the incidence of stone removal at first attempt, hours of operation, total short-term complications and infection, perforation, or acute cholangitis. CONCLUSION: Although the incidence of pancreatitis was higher, the overall stone     

Advantages of endoscopic submucosal dissection over conventional endoscopic mucosal resection

BACKGROUND: Endoscopic mucosal resection is an established method for treating intramucosal gastric neoplasms. Conventional endoscopic mucosal resection has predominantly been performed using strip biopsy, but local recurrence sometimes occurs due to such piecemeal resection. Endoscopic submucosal dissection has recently been performed in Japan using new devices such as an insulation-tip diathermic knife. The efficacy and problems associated with endoscopic submucosal dissection were evaluated by comparison with conventional endoscopic mucosal resection. METHODS: Treatment consisted of conventional endoscopic mucosal resection for 48 lesions from January 1999 to October 2002, and endoscopic submucosal dissection for 59 lesions from November 2002 to June 2005. Endoscopic submucosal dissection was performed using an insulation-tip diathermic knife and flex and hook knives, as appropriate. RESULTS: For lesions >or=11 mm in size, en bloc resection rates were significantly higher with endoscopic submucosal dissection than with conventional endoscopic mucosal resection, but treatment time was significantly longer. En bloc resection rates were higher with endoscopic submucosal dissection than with conventional endoscopic mucosal resection in all areas. Treatment of lesions in the upper one-third of the stomach took a long time using endoscopic submucosal dissection, and intraoperative bleeding was frequent. However, en bloc resection rates and intraoperative bleeding with endoscopic submucosal dissection were improved using various knives. CONCLUSIONS: Endoscopic submucosal dissection can take a long time, but is superior to conventional endoscopic mucosal resection for treating intramucosal gastric neoplasms.