A Randomized Comparison of Novel Biodegradable Polymer- and Durable Polymer–Coated Cobalt-Chromium Sirolimus-Eluting Stents

ObjectivesThe aim of this study was to investigate the hypothesis that a novel biodegradable polymer–coated, cobalt-chromium (CoCr), sirolimus-eluting stent (BP-SES) is noninferior in safety and efficacy outcomes compared with a durable polymer (DP)-SES.BackgroundNo randomized trials have the compared safety and efficacy of BP-SES versus DP-SES on similar CoCr platforms, thereby isolating the effect of the polymer type.MethodsIn this prospective, single-blind, randomized trial conducted at 32 Chinese sites, 2,737 patients eligible for coronary stenting were treated with BP- or DP-SES in a 2:1 ratio. The primary endpoint was 12-month target lesion failure (TLF), a composite of cardiac death, target vessel myocardial infarction, or clinically indicated target lesion revascularization. Secondary endpoints included TLF components, and definite/probable stent thrombosis.ResultsAt 12 months, the difference in the primary endpoint of TLF between BP-SES (6.3%) and DP-SES (6.1%) groups was 0.25% (95% confidence interval: −1.67% to 2.17%, p for noninferiority = 0.0002), demonstrating noninferiority of BP-SES to DP-SES. Individual TLF components of cardiac death (0.7% vs. 0.6%, p = 0.62), target vessel myocardial infarction (3.6% vs. 4.3%, p = 0.39), and clinically indicated target lesion revascularization (2.6% vs. 2.2%, p = 0.50) were similar, as were low definite/probable stent thrombosis rates (0.4% vs. 0.6%, p = 0.55).ConclusionsIn this large-scale real-world trial, BP-SES was noninferior to DP-SES for 1-year TLF. (Evaluate Safety and Effectiveness of the Tivoli ® DES and the Firebird ® DES for Treatment of Coronary Revascularization; NCT01681381)     

覆膜支架主动脉腔内修复术在Stanford B型主动脉夹层中的应用

目的观察覆膜支架主动脉腔内修复术（TEVAR）对Stanford B型主动脉夹层和降主动脉瘤的治疗效果。方法回顾性分析华西医院2013年3～6月采用TEVAR治疗Stanford B型主动脉夹层和降主动脉瘤患者20例的临床资料,其中男19例,女1例;年龄41～76（58．3±10．2）岁,分析其疗效。结果20例患者中,治愈18例,自动出院1例,术后死亡1例。随访满3个月者16例,随访率88．9％。全部随访患者支架范同内真腔管径有所恢复,假腔或瘤腔内血栓形成。结论TEVAR为Stanford B型主动脉瘤提供了一个新的选择,特别是为高龄和合并严重疾病的患者提供了新的治疗手段,优势明显,值得临床应用。     

Internal Pancreatic Stent Causing Irreversible Dilatation of Pancreatic Duct

A 28-year-old woman underwent a pylorus preserving Whipple procedure for pancreatic serous cystadenoma located on the head of the pancreas. During the operation, an internal stent (7F silastic catheter, 9 cm in length) was placed within the pancreatic duct in the area of pancreaticojejunal end-to-end Dunking type anastomosis to prevent development of fistula. The stent was positioned so that one third of its length would lie into the pancreatic duct, and it was anchored to the periductal pancreatic tissue with only one rapidly absorbable chromic suture. Leakage from the anastomosis was not observed, and she was discharged without any complaint. Early postoperative abdominal CT examination revealed that the stent was retained within the normal caliber pancreatic duct (Fig. 1a). Six months after the operation, she began to complain to epigastric pain triggered by the meals. The laboratory analysis was normal, particularly liver biochemical tests and serum amylase. The internal pancreatic stent within the dilated pancreatic duct was detected by an additional CT examination (Fig. 1b). The stent was removed endoscopically at the third attempt. The pain was resolved after its removal. Control CT examination which was taken at the 18th month after removal of the stent showed dilatation of the pancreatic duct (Fig. 2a). The patient remained free of any complaint, although regressed pancreatic duct dilatation has persisted over 4 years of follow-up (Fig. 2b).     

胆道、十二指肠支架置入治疗胆道合并十二指肠恶性梗阻

目的探讨胆道支架、十二指肠支架置入治疗胆道合并十二指肠恶性梗阻的临床价值。方法2008年1月～2013年12月,对24例同时存在胆道和十二指肠恶性梗阻的患者完成胆道支架、十二指肠支架置入,其中介入中心10例患者行经皮肝穿刺造影完成胆道金属支架置入（percutaneoustranshepaticinsertionofbiliarystent,PTIBS）,14例消化内镜中心患者行逆行胰胆管造影放置胆道金属支架（endoscopicretrogradecholangiopancreatography—guidedbiliarystent,ERCP．BS）,其中1例失败后改行经皮肝穿刺胆管外引流术不纳入随访研究。胆管支架置入术后1周完成十二指肠支架置入。观察手术成功率、临床症状缓解率、并发症、支架通畅时间及患者生存期等指标。结果联合支架置入成功率95．8％（23／24）,梗阻症状消失率87．0％（20／23）;十二指肠支架置入术后1周胃出口梗阻评分（2分6例,3分17例）较术前（O分6例,1分17例）明显改善（Z=-4．796,P=0．000）。胆道支架通畅时间（73．9±5．3）d,生存时间（93．0±4．9）d。十二指肠支架再发梗阻率17．4％（4／23）。均未出现严重并发症。结论胆道、十二指肠支架联合置入治疗恶性胆道、十二指肠梗阻安全有效。     

胡桃夹综合征的诊治进展简

胡桃夹综合征又称左。肾静脉压迫综合征,是左肾静脉在腹主动脉和肠系膜上动脉所形成的夹角或腹主动脉和脊柱之间的间隙处受机械挤压后导致左肾静脉回流受阻从而引起左。肾、输尿管及生殖腺静脉内压增高所产生一系列临床症候群的现象,临床上较为少见。结合文献报道和临场诊治经验,对胡桃夹综合征的病理生理、诊断、治疗及其进展进行了总结如下。     

高龄颈动脉狭窄支架成形术病人的护理

[目的]探讨高龄颈动脉狭窄支架成形术病人的护理.[方法]对颈动脉造影并支架植入病人进行术前、术后心理干预、康复训练并加强基础护理,比较手术前后病人日常生活能力(ADL)改变情况.[结果]手术后2个月病人ADL能力明显提高,与术前比较有统计学意义(P＜0.05).[结论]术前、术后加强护理干预可促进病人的康复.     

A case report on the usefulness of early endoscopic ultrasound (EUS)-guided transgastric internal stenting for severe blunt pancreatic trauma

IntroductionTherapeutic strategies for pancreatic trauma vary greatly depending on its severity. Surgical intervention is recommended in cases of severe pancreatic injuries for which standard therapy is not advised. We present a two-step treatment method for severe pancreatic injury using an endoscopic ultrasound (EUS)-guided transgastric internal stent.Clinical caseA 50 year-old male with blunt abdominal trauma sustained in a traffic accident was transported with vital signs indicating shock and CT findings of complete transection of the proximal pancreas and a huge haematoma. A life-saving primary emergency damage control operation was performed. A secondary EUS-guided transgastric internal stent was placed into the pancreatic fluid collection on post-operative day 8 (POD 8). The pancreatic juice secreted from the transected pancreatic tail eventually flowed along the internal stent and emptied completely into the stomach. The patient did not display prognostic symptoms at discharge.DiscussionEUS-guided transgastric internal stenting is currently considered the first line of therapy for pancreatic pseudocysts. It is recommended that pseudocyst drainage occur at least four weeks or more after its formation. In this severe case of blunt pancreatic trauma, the primary damage control operation saved the patient's life. Following primary surgery, a secondary early operation involved insertion of an EUS-guided transgastric internal stent into the collection of pancreatic juice secreted from the transected pancreatic tail, which allowed complete recovery without surgical extraction or reconstruction of the pancreatic tail.ConclusionIn cases of severe pancreatic trauma, practitioners should consider the value of early EUS-guided transgastric internal stenting.     

全覆膜金属支架治疗内镜乳头括约肌切开术后出血的疗效

EST是ERCP检查中常用的诊断与治疗操作,EST术后乳头切缘出血发生率为2％～9％[1-2].内镜下止血是其首选治疗方案.如内镜下治疗不能控制出血,则需行动脉栓塞和外科开腹手术治疗,增加了患者创伤和经济负担.目前临床上常用的内镜下控制EST术后出血的方法是金属夹夹闭出血灶和黏膜下注射肾上腺素[3-4].但这两种治疗方法均难以控制EST术后活动性出血,因此,临床上需要更简便有效的内镜下止血措施.近年来,笔者应用全覆膜自膨式金属支架（full covered self-expandable metal stents,FCSEMS）控制EST术后出血,取得了一定的效果.本研究回顾性分析2012年1月至2013年2月成都军区总医院应用FCSEMS治疗4例EST术后出血患者的临床资料,探讨EST术后出血治疗的新方法.