URL结合微创PCNL治疗严重输尿管石街

目的：总结输尿管镜取石术（URL）结合微创经皮肾穿刺取石术（mini-PCNL)治疗严重输尿管石街的经验。方法：对45列严重输尿管石街（平均长14.3cm)采用输尿管镜下用气压弹道碎石器将结石上推到肾盂后再结合mini-PCNL顺行取石。结果：所有病例均一次性取尽输尿管内结石，且无输尿管穿孔，狭窄及大出血等并发症发生。结论：URL结合微创PCNL治疗严重输尿管石街，不仅显著缩短了手术时间，降低输尿管损伤的风险性，也可同时处理肾内结石，是一较佳手术方法。     

鹿角状肾结石开放取石的术式选择

目的:探讨鹿角状肾结石开放取石的术式选择、预防术中意外切肾和术后失肾的措施。方法:术中根据结石形态与肾脏解剖关系选择术式。对23例鹿角状肾结石患者行开放取石术治疗,左肾鹿角状结石9例,右肾10例,双肾4例。手术前后加强防治感染,术后充分引流,以预防术后失肾。结果:手术均顺利完成,结石均于术中取尽。术中无一例意外切肾。术后1个月随访全部患者的术侧肾脏功能恢复良好。结论:对鹿角结石,根据结石的形态、分布、肾盂类型、肾积水状态和肾实质厚度等因素综合判断,选择合理的术式,能保障手术安全、干净取石。     

经皮肾镜超声弹道碎石术治疗复杂性肾结石

目的：探讨经皮肾镜超声弹道碎石术治疗复杂性肾结石的疗效。方法：采用经皮肾镜联合EMS Ⅲ代超声弹道碎石清石系统治疗48例复杂性肾结石患者，完全性鹿角状结石12例，部分鹿角状结石30例，多发性结石6例。结石直径2．0～6．5cm，平均2．8cm。结果：48例患者中，43例Ⅰ期取净结石；5例完全性鹿角状结石者术后2个月仍有结石残留，结石直径均小于1．0cm，辅助施行ESWL后排净。结石粉碎率100％，结石清除率89．6％（43／48）。手术时间50～120min，平均70min，平均出血量50ml。无严重并发症发生。术后随访3～6个月，肾功能均有不同程度改善。结论：经皮肾镜下使用EMSⅢ代碎石清石系统治疗复杂性肾结石，具有高效、可靠、安全、损伤小、出血少及恢复快等优点，可以作为目前治疗复杂性肾结石的首选方法。     

术前置D-J管后腹腔镜手术治疗输尿管结石

目的:探讨术前膀胱镜下留置D-J管后腹腔镜下输尿管切开取石治疗输尿管结石的效果。方法:对38例输尿管中上段结石患者,行后腹腔镜输尿管切开取石治疗,术前膀胱镜下留置D-J管。结果:38例手术均成功,手术完成率100%,手术时间平均50min,术中出血量平均15ml;术后漏尿3例。术后3~5d拔除后腹膜腔引流管,留置导尿5~7d,术后住院平均6d。随访2~22个月,患者肾输尿管积水明显好转,无结石复发和输尿管切口处狭窄。结论:后腹腔镜输尿管切开取石术前置D-J管安全可行;比术中置管具有损伤小、寻找输尿管容易、出血少、手术时间短、术后并发症少等优点,二者结合,适用于输尿管中上段结石的治疗。     

Sonographic evaluation of gallbladder kinetics: in vitro and in vivo comparison of different methods to assess gallbladder emptying.

In an in vitro study, 10 gallbladders of adult pigs and 6 gallbladders of lambs, all removed immediately after slaughtering, were stimulated in a water bath by electric means to induce active contraction. Gallbladder emptying was followed by ultrasonography employing five measurement procedures: (1) gallbladder width, (2) longitudinal planimetry, (3) transverse planimetry, (4) ellipsoid method, and (5) sum of cylinders method. In an in vivo investigation, gallbladder emptying of 30 volunteers (12 healthy subjects, 18 diabetics) was evaluated in the same way after ingestion of a fatty meal. Gallbladder width was found to be unsuitable to estimate the decrease in gallbladder volume due to a nonlinear relation of the parameters. Longitudinal planimetry tended to be less valid than transverse planimetry in assessing gallbladder volume reduction. The most valid estimation of gallbladder volume decreases was obtained by the two three-dimensional procedures. However, in neither in vitro nor in vivo could a significant difference between the sum of cylinders method and the ellipsoid method in determining relative volume reduction be established. We conclude that a three-dimensional measurement procedure should be used for valid assessments of gallbladder motility. However, according to our data there is no advantage in using the time-consuming sum of cylinders method compared to the simple ellipsoid method.     

急性胆源性胰腺炎的微创治疗

目的探讨应用十二指肠镜及腹腔镜治疗急性胆源性胰腺炎(ABP)的有效性。方法回顾性分析5年间对94例ABP患者进行微创治疗的临床资料。ABP合并胆囊结石的59例行行单纯腹腔镜胆囊切除术(LC);胆总管结石14例内镜下乳头括约肌切开取石术(EST),同时置入鼻胆管引流(ENBD),其中3例联合LC;对胆囊结石合并胆总管结石21例行ERCP EST,联合LC治疗。结果全组术后再次发作胰腺炎1例,胆道出血1例,均为ERCP EST患者;另肺部感染2例,切口感染1例,5例均经非手术治疗痊愈。全组有效率100%。结论十二指肠镜及腹腔镜联合应用于治疗ABP效果好。微创技术是目前ABP理想的治疗方法。     

Biliary stent causing colovaginal fistula: case report.

OBJECTIVES: Perforation of the bowel during placement of a biliary stent is a known complication of this procedure. We report the endoluminal loss of a biliary stent during routine stent extraction that ultimately led to a chronic colovaginal fistula. This case emphasizes the need for evaluation of fecal passage of stents in patients with a known dislodged prosthesis. CASE REPORT: A 65-year-old white female underwent biliary stent placement for an episode of choledocholithiasis. The stent was lost in the duodenum during routine extraction. The patient was managed expectantly. She denied ever passing this stent via the rectum and began to develop symptoms of colovaginal fistula. Evaluation found a retained biliary stent in the sigmoid colon and a fistula into the vagina. The patient underwent elective low anterior resection and colovaginal fistula repair. DISCUSSION: Reports exist of migration of stents that lead to acute colonic perforation and the need for emergent surgery. For this reason, it has been suggested that dropped or migrated stents be purposefully retrieved. However, if the option of expectant observation is used, it is important to clearly document the fecal passage of these stents and be prepared to retrieve these objects if they have a prolonged bowel transit time.     

苄丙酮香豆素对实验性大鼠肾草酸钙结石形成的影响

目的：探讨Vit．K拮抗剂苄丙酮香豆素(商品名华法令)对大鼠肾草酸钙结石形成的影响。方法：采用乙二醇饮水和氯化铵灌胃作成石剂，30只Wistar大鼠随机分为对照组(A组)、成石组(B组)、华法令组(C组)。饲养4周后，检测大鼠肾组织钙含量和草酸钙晶体形成、24h尿钙、尿草酸含量及血生化指标。结果：成石组和华法令组肾组织中钙、镁含量，24h尿草酸及尿钙、镁排泄量差异无显著性意义；镜下观察发现：华法令组大鼠肾脏草酸钙结晶形成多于成石组，但组间比较差异无显著性意义。结论：苄丙酮香豆素对大鼠肾草酸钙结石的形成无显著影响。     

Liver Transplantation Across Rh Blood Group Barriers Increases the Risk of Biliary Complications

Background Cold ischemia time and the presence of postoperative hepatic arterial thrombosis have been associated with biliary complications (BC) after liver transplantation. An ABO-incompatible blood group has also been suggested as a factor for predisposal towards BC. However, the influence of Rh nonidentity has not been studied previously. Materials Three hundred fifty six liver transplants were performed from 1995 to 2000 at our hospital. BC incidence and risk factors were studied in 345 patients. Results Seventy patients (20%) presented BC after liver transplantation. Bile leakage (24/45%) and stenotic anastomosis (21/30%) were the most frequent complications. Presence of BC in Rh-nonidentical graft–host cases (23/76, 30%) was higher than in Rh-identical grafts (47/269, 17%) (P = 0.01). BC was also more frequent in grafts with arterial thrombosis (9/25, 36% vs 60/319, 19%; P = 0.03) and grafts with cold ischemia time longer than 430 min (26/174, 15% vs 44/171, 26%; P = 0.01). Multivariate logistic regression confirmed that Rh graft–host nonidentical blood groups [RR = 2(1.1–3.6); P = 0.02], arterial thrombosis [RR = 2.6(1.1–6.4); P = 0.02] and cold ischemia time longer than 430 min [RR = 1.8(1–3.2); P = 0.02] were risk factors for presenting BC. Conclusion Liver transplantation using Rh graft–host nonidentical blood groups leads to a greater incidence of BC.     

肝移植术后并发胆道狭窄和胆泥淤积影像诊断及介入治疗

目的:评价肝移植术后胆道狭窄和胆泥淤积影像诊断及介入治疗的价值。方法:对39例肝移植术后并发胆道狭窄和胆泥淤积的影像诊断及介入治疗进行回顾性分析。结果:超声、T型管胆道造影、CT和MRI检查诊断胆道狭窄伴胆泥形成39例,38例介入治疗后胆道梗阻症状明显缓解;1例介入治疗后胆道梗阻症状未明显改善,后行外科胆管修补术。结论:T型管胆道造影或直接经皮胆道造影对肝移植术后胆道狭窄和胆泥淤积诊断特异性及敏感性最高,放射介入和内镜介入技术对其均发挥重要的治疗作用。