实验性下腔静脉可扩张性内支撑形态学研究

目的 :通过观察实验犬下腔静脉内放置可扩张性内支撑后血管的形态学变化 ,确定支撑的内皮化进程 ,以期为临床减少内支撑阻塞、合理应用抗凝剂提供组织学的依据。　 方法 :在 14只杂种犬下腔静脉内放置金属内支撑 ,于术后 1个月起 ,逐月取下腔静脉作光镜和电镜检查。　 结果 :术后 1个月左右 ,内支撑基本内皮化 ,5个月完成血管的重构。　 结论 :早期抗凝治疗是防止内支撑阻塞的关键 ,首次提出内支撑放置后血管重构的现象     

A new modification in temporary stent technique of microvenous anastomosis — An experimental study

Summary A new modification of microvenous anastomosis, which has increased patency rates while simultaneously decreasing the difficulty of the procedure, is presented in this paper. The primary purpose of this study was to compare the classical and the temporary stent techniques of microvenous anastomosis. Because of problems such as mixing and tangling of strings during insertion and tying of the last four sutures while applying the temporary stent technique, we decided to modify the procedure. The silastic tube was removed through an incision (venotomy), distant from the actual suture line. This modified technique and the other above mentioned techniques were carried out on rat femoral veins. The results indicate that this modification has increased patency rates, shortened the time of anastomosis and facilitated the procedure.     

喉罩全麻在颈动脉狭窄造影及介入治疗术中的应用

目的：观察喉罩全麻下行颈动脉狭窄的造影诊断及介入治疗术的临床效果。方法：择期DSA下颈动脉狭窄患者23例，年龄42-78岁，无明显肺部疾患及喉罩禁忌症患者，异丙酚（Pmpofol）泵入静脉全麻下插入喉罩完成手术，观察其不同时段的BP（MAP）、SpO2、HR、ECG（ST-Ⅱ）。结果：各时段的BP（MAP）、Sp02、HR、ECG（ST-Ⅱ）比较无显著性差异。结论：喉罩全麻在行颈动脉狭窄的造影诊断及介入治疗术的临床效果是肯定的。喉罩全麻颈动脉狭窄造影介入治疗     

食管支架置入术的临床应用

目的探讨食管支架置入术对良、恶性食管狭窄和食管瘘的治疗方法、疗效和并发症的处理。方法对55例不同原因所致良、恶性食管狭窄和食管瘘患者采用食管金属支架置入术。结果食管狭窄的主要症状吞咽困难、呛咳得到改善，近期疗效达100％。出现的并发症主要为疼痛和大便隐血，发生率分别为100％和92．7％，其余依次为胃食管返流、食管再狭窄、支架脱落，经过治疗后得到缓解或消失。结论金属支架置入术是治疗中晚期食管癌、狭窄的有效方法之一，对食管良性狭窄和瘘效果亦好。并发症可以预防，处理后大部分缓解。     

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。     

Thrombotic occlusion of the common carotid artery (CCA) in acute ischemic stroke treated with intravenous tissue plasminogen activator (TPA)

Although common carotid artery (CCA) occlusions are rare, acute clinical presentations vary from mild to devastating strokes primarily due to tandem occlusions in the intracranial arteries. Three patients with acute CCA occlusions were treated with systemic tissue plasminogen activator (TPA). Blood pressures were kept at the upper limits allowed with TPA therapy with fluid balance and the 'head-down' position. Recanalization occurred in intracranial vessels only. Marked early neurological improvement occurred in two of three patients. CCA occlusions should not be considered contra-indication to systemic thrombolysis.     

Stent fracture: an unusual cause of late restenosis after sirolimus-eluting stent placement.

Stent fracture is uncommon but may have consequences including restenosis. To date, stent fractures reported have been related to aggressive post dilation. We describe a case that involves fracture of a stent deployed to nominal pressure. Unlike most stent fractures reported that involve stent struts only our case demonstrated circumferential disruption with complete separation of the stent segments.     

老年颈动脉硬化患者血清炎症因子与中医证型的关系

目的研究老年颈动脉硬化患者不同中医证型血清内皮细胞粘附分子-1（ICAM-1）、血管细胞粘附分子-1（VCAM-1）、E选择素（E-selectin）、P选择素（p-selectin）、白细胞介素-6（IL-6）和C反应蛋白（CRP）等炎症因子水平。方法收集176例颈动脉硬化患者，采用酶联免疫吸附法测定血清ICAM-1、VCAM-1、E-selectin、p-selectin、IL-6和CRP等水平，比较痰证、血瘀证和精髓亏虚证型颈动脉硬化患者血清粘附分子水平变化。结果发现各型颈动脉硬化患者血清炎症因子水平均较对照组显著上升；颈动脉硬化痰证组患者血清ICAM-1和VCAM-1均较血瘀证和精髓亏虚证患者显著上升（P〈0．05）。结论老年患者外周血中炎症因子水平可以在一定程度上反映患者的颈动脉硬化程度，老年颈动脉硬化痰证患者外周血中粘附分子水平的变化具有一定特异性，痰的微观实质可能与粘附分子之间存在某种内在联系。     

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.