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虎口区的动脉及其吻合与临床意义 被引量:17
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作者 秦小云 徐达传 钟世镇 《中国临床解剖学杂志》 CSCD 北大核心 1995年第3期166-170,共5页
在64例成人上肢标本上(其中3O例为动脉铸型标本)观察了虎口区的动脉及吻合情况。虎口区动脉分布复杂,吻合丰富。纵向吻合类型和横向吻合类型的出现率分别为70.3%和14.1%,各类型又分为浅、深层吻合。此外,还分别观察... 在64例成人上肢标本上(其中3O例为动脉铸型标本)观察了虎口区的动脉及吻合情况。虎口区动脉分布复杂,吻合丰富。纵向吻合类型和横向吻合类型的出现率分别为70.3%和14.1%,各类型又分为浅、深层吻合。此外,还分别观察了虎口区掌侧和背侧动脉的连接以及掌背侧的动脉穿支。根据虎口区动脉的起源、吻合,讨论了其临床意义。 展开更多
关键词 虎口区 动脉 吻合
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小腿皮动脉密度及其方向性的X线观察 被引量:13
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作者 马福顺 杨果凡 孟庆延 《中华整形烧伤外科杂志》 CAS CSCD 北大核心 1996年第5期333-336,403,共4页
应用新鲜成人尸体小腿10侧,用 X 线血管造影的方法,对小腿深筋膜以浅的小动脉血管的密度、方向和吻合进行了研究。发现皮肤和浅筋膜层中纵行血管密度明显高于横行者。纵行血管密度以浅筋膜层为高,横行血管密度两层比较差别不明显。各层... 应用新鲜成人尸体小腿10侧,用 X 线血管造影的方法,对小腿深筋膜以浅的小动脉血管的密度、方向和吻合进行了研究。发现皮肤和浅筋膜层中纵行血管密度明显高于横行者。纵行血管密度以浅筋膜层为高,横行血管密度两层比较差别不明显。各层中分区血管密度的比较说明,不论何种走向的血管,其密度可因部位而异。不同层次、不同部位、不同方向的血管吻合率比较均无显著差别。血管密度高的部位血管吻合也相应丰富。为小腿轴型皮瓣设计提供了参考。 展开更多
关键词 小腿 皮动脉 血管密度 血管方向性 血管吻合
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Endoscopic management of difficult common bile duct stones:Where are we now?A comprehensive review 被引量:11
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作者 Alberto Tringali Deborah Costa +4 位作者 Alessandro Fugazza Matteo Colombo Kareem Khalaf Alessandro Repici Andrea Anderloni 《World Journal of Gastroenterology》 SCIE CAS 2021年第44期7597-7611,共15页
Endoscopic management for difficult common bile duct(CBD)stones still presents a challenge for several reasons,including anatomic anomalies,patients’individual conditions and stone features.In recent years,variable m... Endoscopic management for difficult common bile duct(CBD)stones still presents a challenge for several reasons,including anatomic anomalies,patients’individual conditions and stone features.In recent years,variable methods have emerged that have attributed to higher stone removal success rates,reduced cost and lower adverse events.In this review,we outline a stepwise approach in CBD stone management.As first line therapy,endoscopic sphincterotomy and large balloon dilation are recommended,due to a 30%-50%reduction of the use of mechanical lithotripsy.On the other hand,cholangioscopy-assisted lithotripsy has been increasingly reported as an effective and safe alternative technique to mechanical lithotripsy but remains to be reserved in special settings due to limited large-scale evidence.As discussed,findings suggest that management needs to be tailored to the patient’s characteristics and anatomical conditions.Furthermore,we evaluate the management of CBD stones in various surgical altered anatomy(Billroth II,Roux-en-Y and Roux-en-Y gastric bypass).Moreover,we could conclude that cholangioscopy-assisted lithotripsy needs to be evaluated for primary use,rather than following a failed management option.In addition,we discuss the importance of dissecting other techniques,such as the primary use of interventional endoscopic ultrasound for the management of CBD stones when other techniques have failed.In conclusion,we recognize that endoscopic sphincterotomy and large balloon dilation,mechanical lithotripsy and intraductal lithotripsy substantiate an indication to the management of difficult CBD stones,but emerging techniques are in rapid evolution with encouraging results. 展开更多
关键词 Common bile duct stones Balloon dilation Endoscopic retrograde cholangiopancreatography Endoscopic ultrasonography anastomoses Roux en y Double balloon enteroscopy Mechanical lithotripsy CHOLANGIOSCOPY
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冠状窦及其属支的应用解剖 被引量:8
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作者 姜华东 姚友生 +3 位作者 姚作宾 任国良 朱晞 沈良华 《中国临床解剖学杂志》 CSCD 北大核心 2003年第5期477-479,共3页
目的 :研究冠状窦及其属支的形态、局部解剖以及其与冠状动脉的毗邻 ,为临床提供解剖学基础。方法 :在 5 2例成人尸体心脏标本中 ,经冠状窦及其属支逆行灌注墨汁明胶溶液 ,固定后存放 10 %福尔马林。结果 :前、后室间静脉的吻合管径约 1... 目的 :研究冠状窦及其属支的形态、局部解剖以及其与冠状动脉的毗邻 ,为临床提供解剖学基础。方法 :在 5 2例成人尸体心脏标本中 ,经冠状窦及其属支逆行灌注墨汁明胶溶液 ,固定后存放 10 %福尔马林。结果 :前、后室间静脉的吻合管径约 1mm ,此二静脉与左冠状静脉和冠状窦共同连成环绕左心室的静脉环占 15 .4%。静脉肌桥被覆前室间静脉或左冠状静脉属支占 3 .8%。心大静脉与左冠状动脉分叉支组成Brocq和Mouchet血管三角占 80 .8%和形成心大静脉角 (角静脉 )占 19.2 %。在血管三角区 ,心大静脉位于动脉支浅表占 40 .4%。一例残存左上腔静脉与双冠状窦。结论 :了解冠状窦及其属支的形态和局部解剖 ,有助于临床心血管疾病的诊治。 展开更多
关键词 解剖 心脏 静脉 冠状窦 吻合 肌桥
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肺内支气管动脉及其与肺血管的吻合 被引量:6
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作者 姚作宾 周家宝 《解剖学报》 CAS 1985年第1期15-20,共6页
在解剖显微镜下放大3~40倍,观察了30例(成人与儿童)正常和病变肺的肺内支气管动脉及其与肺血管的吻合。支气管动脉伴随支气管呈弯曲、蛇行经过,于支气管分叉的前方或后方分支,常以2支沿支气管支分布,呈对向排列,在支气管外膜中形成动脉... 在解剖显微镜下放大3~40倍,观察了30例(成人与儿童)正常和病变肺的肺内支气管动脉及其与肺血管的吻合。支气管动脉伴随支气管呈弯曲、蛇行经过,于支气管分叉的前方或后方分支,常以2支沿支气管支分布,呈对向排列,在支气管外膜中形成动脉网。小支穿支气管壁,在粘膜下层亦形成动脉网。支气管动脉的纵隔面胸膜支与叶间胸膜支位于肺胸膜下,与支气管树分离,在肺外周部管径较粗。在支气管壁与肺胸膜中,支气管动脉与肺动、静脉间存在毛细管前的端一端吻合或端一侧吻合。9例胸膜粘连处的新生胸膜支(发自肋间动脉、最上肋间动脉、心包膈动脉或胸廓内动脉)通过肺胸膜动脉网与支气管动脉吻合,以加强肺病变区的血液供应。此外,对支气管动脉在肺内的经过、分布及其与肺血管吻合的生理功能进行了讨论。 展开更多
关键词 支气管动脉 吻合
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Clinical diagnostic advances in intestinal anastomotic techniques:Hand suturing,stapling,and compression devices 被引量:1
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作者 Ah Young Lee Joo Young Cho 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第5期1231-1234,共4页
The development of intestinal anastomosis techniques,including hand suturing,stapling,and compression anastomoses,has been a significant advancement in surgical practice.These methods aim to prevent leakage and minimi... The development of intestinal anastomosis techniques,including hand suturing,stapling,and compression anastomoses,has been a significant advancement in surgical practice.These methods aim to prevent leakage and minimize tissue fibrosis,which can lead to stricture formation.The healing process involves various phases:hemostasis and inflammation,proliferation,and remodeling.Mechanical staplers and sutures can cause inflammation and fibrosis due to the release of profibrotic chemokines.Compression anastomosis devices,including those made of nickel-titanium alloy,offer a minimally invasive option for various surgical challenges and have shown safety and efficacy.However,despite advancements,anastomotic techniques are evaluated based on leakage risk,with complications being a primary concern.Newer devices like Magnamosis use magnetic rings for compression anastomosis,demonstrating greater strength and patency compared to stapling.Magnetic technology is also being explored for other medical treatments.While there are promising results,particularly in animal models,the realworld application in humans is limited,and further research is needed to assess their safety and practicality. 展开更多
关键词 anastomoses Diagnostic advances Anastomotic techniques Technique Intestine
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Portal vein arterialization in 25 liver transplant recipients:A Latin American single-center experience
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作者 Nicolas Andres Cortes-Mejia Diana Fernanda Bejarano-Ramirez +3 位作者 Juan Jose Guerra-Londono Diego Rymel Trivino-Alvarez Raquel Tabares-Mesa Alonso Vera-Torres 《World Journal of Transplantation》 2024年第2期135-147,共13页
BACKGROUND Portal vein arterialization(PVA)has been used in liver transplantation(LT)to maximize oxygen delivery when arterial circulation is compromised or has been used as an alternative reperfusion technique for co... BACKGROUND Portal vein arterialization(PVA)has been used in liver transplantation(LT)to maximize oxygen delivery when arterial circulation is compromised or has been used as an alternative reperfusion technique for complex portal vein thrombosis(PVT).The effect of PVA on portal perfusion and primary graft dysfunction(PGD)has not been assessed.All patients receiving PVA and LT at the Fundacion Santa Fe de Bogota between 2011 and 2022 were analyzed.To account for the time-sensitive effects of graft perfusion,patients were classified into two groups:prereperfusion(pre-PVA),if the arterioportal anastomosis was performed before graft revascularization,and postreperfusion(post-PVA),if PVA was performed afterward.The pre-PVA rationale contemplated poor portal hemodynamics,severe vascular steal,or PVT.Post-PVA was considered if graft hypoperfusion became evident.Conservative interventions were attempted before PVA. 展开更多
关键词 Liver transplantation Portal vein arterialization Arteriovenous anastomoses Portal hypertension Portal vein thrombosis Spontaneous portosystemic shunts Vascular steal phenomenon Primary graft dysfunction Early allograft dysfunction
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内镜超声引导下组织获取和引流治疗现状 被引量:5
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作者 洪颋樑 《中华消化杂志》 CAS CSCD 北大核心 2021年第7期436-445,共10页
Endoscopic ultrasound(EUS)has both diagnostic and therapeutic clinical applications.This review article focuses on recent advances in two commonly performed procedures:EUS-guided tissue acquisition and EUS-guided drai... Endoscopic ultrasound(EUS)has both diagnostic and therapeutic clinical applications.This review article focuses on recent advances in two commonly performed procedures:EUS-guided tissue acquisition and EUS-guided drainage.There is a shift from acquiring aspirates for cytology to obtaining tissue cores for histological diagnoses and molecular analyses.There is growing interest and research about artificial intelligence in EUS.Artificial intelligence may potentially be useful to guide clinical decision making if biopsy results are non-diagnostic.The range of EUS-guided drainage procedures has expanded.EUS-guided drainage of walled-off pancreatic fluid collections is an accepted first line treatment option.EUS-guided palliative drainage of malignant biliary obstruction after unsuccessful endoscopic retrograde cholangiopancreatography(ERCP)is now an accepted alternative to percutaneous transhepatic biliary drainage.EUS-guided gallbladder drainage for management of acute cholecystitis is now a preferred option over percutaneous cholecystostomy for non-surgical candidates.Other EUS-created gastrointestinal anastomoses such as EUS-guided gastroenterostomy in the context of gastric outlet obstruction,and EUS-directed transgastric ERCP for Roux-en-Y gastric bypass are now technically feasible,but further prospective randomized studies are needed to establish the actual clinical impact. 展开更多
关键词 Endoscopic ultrasound HISTOLOGY Drainage treatment Gastrointestinal anastomoses
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两种手术方式建立A-V内瘘的临床研究 被引量:5
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作者 刘春 周泽梅 +2 位作者 郑文搏 计蕾 彭献代 《中国血液净化》 2004年第9期487-489,共3页
目的 比较不同的手术方式对动静脉内瘘 (AVF)在使用过程中血流量的差异 ,探寻适宜于肾衰竭患者较佳的手术方式。方法 采用彩色多普勒超声检查测定血液透析患者以不同手术方式形成的动静脉内瘘的血流量大小。结果  4 3例端侧吻合并加... 目的 比较不同的手术方式对动静脉内瘘 (AVF)在使用过程中血流量的差异 ,探寻适宜于肾衰竭患者较佳的手术方式。方法 采用彩色多普勒超声检查测定血液透析患者以不同手术方式形成的动静脉内瘘的血流量大小。结果  4 3例端侧吻合并加用钛环固定的患者造瘘后 1个月时内瘘血流量在 (5 92±116 )ml/min。其内瘘的血流量调节在较理想的范围内 ,透析间期均无心力衰竭发作而透析时血流量可达到30 0ml/min。结论 用丝线缝合将桡动脉与头静脉行侧 -端吻合并加用 3.0mm钛环固定吻合口大小是慢性肾功能衰竭患者行动静脉内瘘 (AVF)的最佳手术方式。既不诱导高心输出性心力衰竭的发生 。 展开更多
关键词 血液透析 动静脉内瘘 吻合口 血流量
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胰腺外科学分段的解剖学基础及其意义 被引量:3
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作者 吴樾 李崇谦 +3 位作者 袁武 黄三合 陈仲欣 贺能树 《中国临床解剖学杂志》 CSCD 北大核心 1998年第4期334-335,共2页
目的:为胰腺外科学分段提供解剖学基础。方法:在64具灌注标本和4具铸型标本上观察胰内动脉分布、吻合。结果:头由胰十二指肠上动脉和胰十二指肠下动脉供血;颈为一乏血管区;体和尾由胰背动脉、胰支、胰大动脉和胰尾动脉供血。
关键词 胰腺 外科学分段 乏血管区 解剖学
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枕区皮瓣动脉的巨微解剖 被引量:3
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作者 应大君 何光篪 +1 位作者 陈尔瑜 刘正津 《解剖学报》 CAS 1986年第1期1-9,共9页
本文用手术显微镜,对50侧枕动脉在头皮的分布进行了观测。枕动脉穿头皮深筋膜浅出,有相对恒定的部位,82%的浅出点可包括在半径为15mm的圆内。动脉可分为主干型和两分支型,行程纡曲,纡曲指数多集中在100~150之间。枕动脉分布面积平均为89... 本文用手术显微镜,对50侧枕动脉在头皮的分布进行了观测。枕动脉穿头皮深筋膜浅出,有相对恒定的部位,82%的浅出点可包括在半径为15mm的圆内。动脉可分为主干型和两分支型,行程纡曲,纡曲指数多集中在100~150之间。枕动脉分布面积平均为89cm^(2),多呈左右均衡分布(78%)。动脉与相邻头皮动脉呈L型、Y型或X型吻合。两侧枕动脉之间、枕动脉与颢浅动脉、耳后动脉之间的吻合点,分别为7.3、8.1和2.3个。吻合点外径在0.3~0.5 mm之间的占60%以上。相邻吻合点间的距离有85%在20mm以内。本文还测定了吻合点的分布位置和频数;讨论了枕动脉在游离头皮瓣和治疗全头皮撕脱伤中的应用。 展开更多
关键词 枕动脉 头皮 皮瓣 吻合
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闭孔动脉跨区供血的长型股薄肌肌皮瓣的应用解剖学研究 被引量:2
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作者 肖玲 高国兰 +2 位作者 陈宗基 杨心凤 李忠华 《整形再造外科杂志》 2005年第1期6-9,共4页
目的为闭孔动脉跨区供血的长型股薄肌肌皮瓣的临床应用提供解剖学基础。方法在38侧灌注红色乳胶的成人下肢标本上,对股薄肌上闭孔动脉和旋股内侧动脉的出现率、闭孔动脉和旋股内侧动脉在股薄肌内的走行以及闭孔动脉与旋股内侧动脉之间... 目的为闭孔动脉跨区供血的长型股薄肌肌皮瓣的临床应用提供解剖学基础。方法在38侧灌注红色乳胶的成人下肢标本上,对股薄肌上闭孔动脉和旋股内侧动脉的出现率、闭孔动脉和旋股内侧动脉在股薄肌内的走行以及闭孔动脉与旋股内侧动脉之间的吻合支等进行解剖学观测。结果闭孔动脉在股薄肌的出现率为97.37%(37侧,40支),其中有2侧是闭孔动脉与旋股内侧动脉在肌肉上端的吻合支发出分支入肌,闭孔动脉入肌点距股薄肌肌肉起点距离为(2.84±8.27)cm,起始处外径(0.62±0.45)mm;旋股内侧动脉出现率为95%,其入肌处管径(0.88±0.29)mm;闭孔动脉在股薄肌内与旋股内侧动脉吻合支的出现率为95%,主要吻合类型为终末支网状血管吻合。结论闭孔动脉及其与旋股内侧动脉的吻合支出现率高,分布具有规律性,闭孔动脉跨区供血的长型股薄肌肌皮瓣经尸体模拟实验,证明具有可行性。 展开更多
关键词 闭孔动脉 股薄肌肌皮瓣 旋股内侧动脉 吻合支
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Bowel anastomoses: The theory, the practice and the evidence base 被引量:3
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作者 Frances Goulder 《World Journal of Gastrointestinal Surgery》 SCIE CAS 2012年第9期208-213,共6页
Since the introduction of stapling instruments in the 1970s various studies have compared the results of sutured and stapled bowel anastomoses. A literature search was performed from 1960 to 2010 and articles relating... Since the introduction of stapling instruments in the 1970s various studies have compared the results of sutured and stapled bowel anastomoses. A literature search was performed from 1960 to 2010 and articles relating to small bowel, colonic and colorectal anastomotic techniques were reviewed. References from these articles were also reviewed, and relevant articles obtained. Either a stapled or sutured gastrointestinal tract anastomosis is acceptable in most situations. The available evidence suggests that in the following situations, however, particular anastomotic techniques may result in fewer complications: A stapled side-to-side ileocolic anastomosis is preferable following a right hemicolectomy for cancer. A stapled side-to-side anastomosis is likely also preferable after an ileocolic resection for Crohn’s disease. Colorectal anastomoses can be sutured or stapled with similar results, although the incidence of strictures is higher following stapled anastomoses. Following reversal of loop ileostomy there is some evidence to suggest that a stapled side-to-side anastomosis or sutured enterotomy closure (rather than spout resection and sutured anastomosis) results in fewer complications. Non-randomised data has indicated that small bowel anastomoses are best sutured in the trauma patient. This article reviews the theory, practice and evidence base behind the various gastrointestinal anastomoses to help the practising general surgeon make evidence based operative decisions. 展开更多
关键词 BOWEL GASTROINTESTINAL Stapled anastomosIS anastomoses
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Direct Gene Transfer into Rabbit Peripheral Nerve in vivo
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作者 张世强 张经歧 +1 位作者 张英泽 刘玲 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2001年第1期52-55,共4页
Exogenous gene suture was used to achieve peripheral nerve anastomoses to probe into the feasibility that the sites of anastomoses of nerves directly transfer gene and thus enable gene to be expressed at the sites of... Exogenous gene suture was used to achieve peripheral nerve anastomoses to probe into the feasibility that the sites of anastomoses of nerves directly transfer gene and thus enable gene to be expressed at the sites of anastomoses under the condition that perfect nerve anastomoses are ensured. PCMVβ plasmid containing cytomegalovirus promoter (CMV promoter) and Escherichia coli (E.coli) β Galactosidase (β Gal) structural gene (lacZ gene) was conducted. A soaked medical 8 0nylon suture was used to perform epineurial repair of rabbit sciatic nerve. In the control group a suture soaked in sucrose PBS was used, while in the experimental group a suture soaked in PCMVβ plasmid solution was applied. The sites of anastomoses of nerves by stages were taken out, and β Gal histochemical staining was performed and β Gal enzyme activity was assayed with 5 bromo 4 chloro 3 indolyl β D galactoside. Results showed that the sites of anastomoses of nerves were taken out 2 days, 7 days, 14 days and 30 days respectively after the operation. The β Gal histochemical stains at the sites of anastomoses showed no indigo positive cells at different stages in the control group, whereas displayed indigo positive cells in the experimental group. In the control group, no β Gal enzyme activity was detected at different stages after operation, but in the experimental group, β Gal enzyme activity could be detected from the 3rd day to the 30th day after operation. It was concluded that by using exogenous gene suture, exogenous gene could be transferred to the sites of peripheral nerve and expressed the exogenous gene expression products with bioactivity, which provided the feasibility of using gene therapy to accelerate the recovery of nerve function. 展开更多
关键词 nerve anastomoses nerve regeneration gene transfer gene expression gene therapy
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Surgical Coronary Revascularization Using an Off-Pump, No-Touch Technique: The Cyclone (Hexalon) Experience
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作者 Jeffrey M. Schussler Theodore T. Theologes Baron L. Hamman 《Open Journal of Thoracic Surgery》 2014年第4期94-99,共6页
The CycloneTM System (Castlewood Surgical, Inc., Concord, MA) is a novel device that facilitates the attachment of the saphenous vein onto the ascending aorta for the purpose of creating a bypass graft during a corona... The CycloneTM System (Castlewood Surgical, Inc., Concord, MA) is a novel device that facilitates the attachment of the saphenous vein onto the ascending aorta for the purpose of creating a bypass graft during a coronary artery bypass grafting (CABG) operation. It allows the surgeon to perform a hand-sewn anastomosis with no disruption of the intima of the aorta, and no need for partial clamping. During a 36-month period 109 CABG operations were performed, and the CycloneTM System (and its predecessor, the HexalonTM) was utilized to create 138 proximal anastomoses. This study demonstrates that this is a safe and effective method of creating a clampless, no-touch proximal anastomoses during off-pump CABG. 展开更多
关键词 NO TOUCH Clampless Coronary BYPASS CABG anastomoses Stroke
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Applying refined pancreaticogastrostomy techniques in pancreatic trauma
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作者 Jake Krige Marc Bernon Eduard Jonas 《World Journal of Gastrointestinal Surgery》 SCIE 2022年第5期521-524,共4页
We comment on a study titled“Feasibility and safety of"bridging"pancreaticogastrostomy for pancreatic trauma in Landrace pigs”in which ten pigs were randomized to either experimental“bridging”pancreatico... We comment on a study titled“Feasibility and safety of"bridging"pancreaticogastrostomy for pancreatic trauma in Landrace pigs”in which ten pigs were randomized to either experimental“bridging”pancreaticogastrostomy(PG)or a control group with a routine mucosa-to-mucosa PG.At six months anastomoses had strictured and closed in both groups.The authors concluded that“bridging”PG is feasible and safe in damage control surgery during the early stage of pancreatic injury.In this letter we comment on the study design,specifically leaving a 2 cm gap between the pancreatic stump and the stomach and highlight the complexity of performing pancreatic anastomoses following trauma pancreaticoduodenectomy as to our experience in a high volume trauma centre.Our data emphasize that pancreatic anastomoses in trauma are complex procedures with significant postoperative morbidity and are best managed collaboratively by trauma and hepatopancreaticobiliary surgical teams with the required technical skills. 展开更多
关键词 Pancreatic trauma Pancreatic anastomoses PANCREATICOGASTROSTOMY COMPLICATIONS
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可降解镁基材料用于胃肠道吻合的动物实验研究
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作者 曹键 熊晓宇 +2 位作者 高志冬 王搏 叶颖江 《中华实验外科杂志》 CAS 北大核心 2022年第2期238-240,共3页
目的通过总结既往动物实验结果探讨可降解镁基金属用于胃肠道吻合的安全性和可行性。方法计算机检索Pubmed、Embase、Web of Science、中国知网(CNKI)、重庆维普(VIP)和万方数据库, 查找所有关于可降解金属用于胃肠道吻合的文献, 检索... 目的通过总结既往动物实验结果探讨可降解镁基金属用于胃肠道吻合的安全性和可行性。方法计算机检索Pubmed、Embase、Web of Science、中国知网(CNKI)、重庆维普(VIP)和万方数据库, 查找所有关于可降解金属用于胃肠道吻合的文献, 检索时限均为建库至2021年07月, 根据内容筛选出所有动物实验的研究。结果共纳入七项研究, 其中四项为对照研究。由于各项研究存在较大异质性, 无法进行荟萃分析。根据分别描述了体外及动物体内降解的三项研究结果, 体内降解过程明显慢于体外降解。各项研究中动物重要脏器功能均未受严重影响, 四项进行消化道吻合的研究中实验动物吻合口均愈合良好。组织病理学结果提示镁基材料可能会减轻吻合口周围炎性反应。结论镁基合金吻合钉具有良好的生物相容性, 是一种有希望广泛应用于胃肠外科领域的可降解植入物, 值得进一步扩大样本研究。 展开更多
关键词 镁合金 吻合手术
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高精度激光显微手术系统及其在微血管吻合中的应用 被引量:1
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作者 曲世浦 于春莲 +12 位作者 周正谊 吴磊 贾锋 王胜利 刘邦珍 范静逸 黄宣劭 顾玉东 严计庚 姜继福 李继峰 袁伟 袁琦梅 《应用激光》 CSCD 北大核心 1991年第1期34-36,共3页
设计了一套具有高定位指示精度的 CO_2激光显微手术系统,并给出了用于微血管吻合的实验结果。
关键词 CO2激光 显微手术 血管吻合
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建立兔颈总动脉旁路移植模型的研究
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作者 黄海涛 王昆 +3 位作者 王飞 沈亮 仲崇俊 陆晨希 《外科研究与新技术》 2015年第2期85-88,102,共5页
目的采用3种不同的方法建立兔颈总动脉旁路移植的动物模型,比较建立各种动物模型的手术结果。方法将36例兔分为:P1组、P2组、C组,三组分别采用不同的方法建立兔颈总动脉旁路移植模型。P1组:将2~3 cm长的颈外静脉远近端倒转后端侧吻合... 目的采用3种不同的方法建立兔颈总动脉旁路移植的动物模型,比较建立各种动物模型的手术结果。方法将36例兔分为:P1组、P2组、C组,三组分别采用不同的方法建立兔颈总动脉旁路移植模型。P1组:将2~3 cm长的颈外静脉远近端倒转后端侧吻合移植至同侧颈总动脉上,结扎两吻合口间的颈总动脉。P2组:与P1组不同的是动脉离断后与倒置的静脉行端端连续吻合。C组:将同样长度的颈内静脉倒置后应用cuff管技术移植于颈总动脉。比较三组血管吻合技术的手术时间、吻合口术后即刻及4周时的通畅率,4周后静脉桥血管内,中膜增生情况。结果三种实验动物均无死亡。P1、2组动物手术时间相当,但较C组手术时间长(P〈0.05)。三组手术中出血量相当(P〉0.05)。Cuff技术制作的动静脉吻合口,大小相对固定,不容易形成手术技术的吻合口狭窄;缝合法,技术要求较高,缝合不当、打结过紧可直接导致吻合口狭窄,以端端吻合的狭窄率最高。4周后缝合法比cuff技术的吻合口管壁增生更加明显,吻合口发生狭窄的比率升高,cuff技术与端端吻合差异明显(P〈0.05)。静脉桥血管体部的内膜及中膜增生程度相似,无统计学差异(P〉0.05)。结论 Cuff技术制作兔颈总动旁路移植模型容易掌握,吻合口不易狭窄,适用于研究静脉桥血管体的病例生理变化。而缝合法手术要求高,吻合口狭窄的发生率高,但更近于临床,对研究吻合口狭窄具有重要意义。 展开更多
关键词 动脉旁路移植术 移植静脉 吻合口 动物模型
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TRACING COLLATERAL CIRCULATION AFTER ISCHEMIA IN RAT CORTEX BY LASER SPECKLE IMAGING
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作者 WEIHUA LUO PENGCHENG LI +2 位作者 ZHEN WANG SHAOQUN ZENG QINGMING LUO 《Journal of Innovative Optical Health Sciences》 SCIE EI CAS 2008年第2期217-226,共10页
The collateral circulation is crucial for the pathophysiology and outcome of acute cortical ischemia.Current understanding of collateral circulation still remains sparse,largely due to prior limitations of spatial or/... The collateral circulation is crucial for the pathophysiology and outcome of acute cortical ischemia.Current understanding of collateral circulation still remains sparse,largely due to prior limitations of spatial or/and temporal resolution in methods to evaluate these diminutive redistributive routes of cerebral blood flow(CBF)especially in leptomeningeal anastomoses that connected cortical arteries.In the study,based on a mini-stroke model,laser speckle imaging with high spatiotemporal resolution was used to assess the dynamic evolution of the collateral circulation around a mini-ischemia in the rat cortex.We found that the blood flow and diameter in the intra-arterial anastomoses were enhanced immediately after the ligation of one branch of middle cerebral artery and recovered to baseline level as arterial recirculation was performed.Whereas the communicative flow-through of the posterior cerebral artery and the middle cerebral artery anastomoses was not significant enough to be determined.This is the evidence that intra-arterial anastomoses were the primary routes to restore blood flow into the ischemic territory during the acute phase of ischemia,and laser speckle imaging method was proven as a powerful tool to be potential for subserving further investigation of the collateral circulation. 展开更多
关键词 Cerebral blood flow anastomoses mini-stroke model
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