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Outcomes of staged hepatectomies for liver malignancy 预览
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作者 Naif A Albati Ali A Korairi +2 位作者 Ibrahim Al Hasan Helayel K Almodhaiberi Abdullah A Algarni 《世界肝病学杂志:英文版(电子版)》 2019年第6期513-521,共9页
Liver malignancies are the fifth most common cause of death worldwide.Surgical intervention with curative intent is the treatment of choice for liver tumors as it provides long-term survival.However,only 20%of patient... Liver malignancies are the fifth most common cause of death worldwide.Surgical intervention with curative intent is the treatment of choice for liver tumors as it provides long-term survival.However,only 20%of patients with metastatic liver lesions can be managed by curative liver resection.In most of the cases,hepatectomy is not feasible because of insufficient future liver remnant(FLR).Two-stage hepatectomy is advocated to achieve liver resection in a patient who is considered to not be a candidate for resection.Procedures of staged hepatectomy include conventional two-stage hepatectomy,portal vein embolization,and associating liver partition and portal vein ligation for a staged hepatectomy.Technical success is high for each of these procedures but variable between them.All the procedures have been reported as being effective in achieving a satisfactory FLR and completing the second-stage resection.Moreover,the overall survival and disease-free survival rates have improved significantly for patients who were otherwise considered nonresectable;yet,an increase in the morbidity and mortality rates has been observed.We suggest that this type of procedure should be carried out in high-flow centers and through a multidisciplinary approach.An experienced surgeon is key to the success of those interventions. 展开更多
关键词 Staged HEPATECTOMY PORTAL VEIN EMBOLIZATION PORTAL VEIN LIGATION Colorectal LIVER metastasis Hepatocellular carcinoma Associated LIVER partition and PORTAL VEIN LIGATION for staged HEPATECTOMY
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Acute portal vein thrombosis after liver transplant presenting with subtle ultrasound abnormalities: A case report and literature review 预览
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作者 Thomas Couri Carla Harmath +1 位作者 Talia Baker Anjana Pillai 《世界肝病学杂志:英文版(电子版)》 2019年第2期234-241,共8页
BACKGROUND Portal vein thrombosis (PVT) after liver transplantation (LT) is an uncommon complication with potential for significant morbidity and mortality that transplant providers should be cognizant of. Recognizing... BACKGROUND Portal vein thrombosis (PVT) after liver transplantation (LT) is an uncommon complication with potential for significant morbidity and mortality that transplant providers should be cognizant of. Recognizing subtle changes in postoperative ultrasounds that could herald but do not definitively diagnose PVT is paramount. CASE SUMMARY A 30-year-old female with a history of alcohol-related cirrhosis presented with painless jaundice and received a deceased donor orthotopic liver transplant. On the first two days post-operatively, her liver Doppler ultrasounds showed a patent portal vein, increased hepatic arterial diastolic flows, and reduced hepatic arterial resistive indices. She was asymptomatic with improving labs. On postoperative day three, her resistive indices declined further, and computed tomography of the abdomen revealed a large extra-hepatic PVT. The patient then underwent emergent percutaneous venography with tissue plasminogen activator administration, angioplasty, and stent placement. Aspirin was started to prevent stent thrombosis. Follow-up ultrasounds showed a patent portal vein and improved hepatic arterial resistive indices. Her graft function improved to normal by discharge. Although decreased hepatic artery resistive indices and increased diastolic flows on ultrasound are often associated with hepatic arterial stenosis post-LT, PVT can also cause these findings.CONCLUSION Reduced hepatic arterial resistive indices on ultrasound can signify PVT post-LT, and thrombolysis, angioplasty, and stent placement are efficacious treatments. 展开更多
关键词 PORTAL VEIN THROMBOSIS PORTAL VEIN stent Liver TRANSPLANT Case report
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Metasediments in the Alahina Sector and Associated Mineralization (North-Eastern Guinea) 预览
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作者 Koffi Germain Tchokpon Christophe Kaki +2 位作者 Glodji Luc Adissin Soulémana Yessoufou Mory Kourouma 《地质学期刊(英文)》 2019年第12期897-918,共22页
The Alahina sector is located in the North-East of Guinea, precisely in the Siguiri volcano-sedimentary basin. It consists mainly of meta-sediments traversed by Paleoproterozoic pyroclastite, granite, monzogranite and... The Alahina sector is located in the North-East of Guinea, precisely in the Siguiri volcano-sedimentary basin. It consists mainly of meta-sediments traversed by Paleoproterozoic pyroclastite, granite, monzogranite and granodiorite veins as well as Mesozoic dolerite and gabbros veins. This article presents new data, on the one hand, on the geochemical petrographic features and the origin of the metasediments of this zone, and on the other hand, on the genetic model of the gold mineralization that they contain. Field observations, as well as petrographic and geochemical studies reveal that the meta-sediments consist of sericite and chlorite schists. They belong to the groups of shales and grauwackes. Their protholites are moderately altered (60 N/YbN = 6.31 - 13.24) and a flat heavy rare earth patterns (HREE). This spectrum is almost identical to those of the “Post-Archean average Australian Shale” and Early Proterozoic Greywackes. Two types of polyphase gold mineralization occur in the Alahina sector: disseminated and veined. They consist of particular of grains and nanoparticles pyrite associated with gold, magnetite, hematite, ilmenite. The hydrothermal alteration accompanying this mineralization consists of silica, microcline, chlorite-epidote-sericite-carbonates. 展开更多
关键词 Metasediment SCHIST SERICITE CHLORITE VEIN Quartz Gold Alahina Siguiri Basin
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Anchor-based manifold binary pattern for finger vein recognition
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作者 Haiying LIU Gongping YANG +2 位作者 Lu YANG Kun SU Yilong YIN 《中国科学:信息科学(英文版)》 SCIE EI CSCD 2019年第5期129-144,共16页
This paper proposes a novel learning method of binary local features for recognition of the finger vein. The learning methods existing in local features for image recognition intend to maximize the data variance, redu... This paper proposes a novel learning method of binary local features for recognition of the finger vein. The learning methods existing in local features for image recognition intend to maximize the data variance, reduce quantitative errors, exploit the contextual information within each binary code, or utilize the label information, which all ignore the local manifold structure of the original data. The manifold structure actually plays a very important role in binary code learning, but constructing a similarity matrix for large-scale datasets involves a lot of computational and storage cost. The study attempts to learn a map, which can preserve the manifold structure between the original data and the learned binary codes for large-scale situations. To achieve this goal, we present a learning method using an anchor-based manifold binary pattern(AMBP) for finger vein recognition. Specifically, we first extract the pixel difference vectors(PDVs) in the local patches by calculating the differences between each pixel and its neighbors. Second,we construct an asymmetric graph, on which each data point can be a linear combination of its K-nearest neighbor anchors, and the anchors are randomly selected from the training samples. Third, a feature map is learned to project these PDVs into low-dimensional binary codes in an unsupervised manner, where(i) the quantization loss between the original real-valued vectors and learned binary codes is minimized and(ii) the manifold structure of the training data is maintained in the binary space. Additionally, the study fuses the discriminative binary descriptor and AMBP methods at the image representation level to further boost the performance of the recognition system. Finally, experiments using the MLA and PolyU databases show the effectiveness of our proposed methods. 展开更多
关键词 FINGER VEIN recognition feature LEARNING local linear EMBEDDING fusion MANIFOLD LEARNING ANCHOR
Influence of Microstructures on Aerodynamic Characteristics for Dragonfly Wing in Gliding Flight
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作者 Sheng Zhang Masayuki Ochiai +1 位作者 Yuta Sunami Hiromu Hashimoto 《仿生工程学报:英文版》 SCIE EI CSCD 2019年第3期423-431,共9页
In this paper, the functionalities of microstructures for dragonfly wing during gliding flight are investigated. Three dragonfly-mimic airfoil-shaped wings with hybrid structures were designed and fabricated as: flat ... In this paper, the functionalities of microstructures for dragonfly wing during gliding flight are investigated. Three dragonfly-mimic airfoil-shaped wings with hybrid structures were designed and fabricated as: flat wing, zigzag-edged wing and zigzag-edged wing with pillar structure. Based on the wind tunnel experiments, the zigzag-edged wing structure significantly reduces the drag force in the gliding flight. Moreover, the drag reduction is more effective on the combination of the surface pillar and zigzag-edged structure. In addition, the zigzag-edged wing structure has less influence of Karman vortex street, and the surface pillars reduce the frictional drag and stabilized the streamline in the lower vortex region. Overall, the microstructure of the dragonfly wing is an important element in the aerodynamic study. These findings can enhance the knowledge of insect-mimic wing structure and facilitate the application of Micro Air Vehicle (MAV) in the gliding flight. 展开更多
关键词 DRAGONFLY WING VEIN structure AERODYNAMICS GLIDING biomimetics
Vein of Galen aneurismal malformations - clinical characteristics, treatment and presentation: Three cases report 预览
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作者 Peter Spazzapan Zoran Milosevic Tomaz Velnar 《世界临床病例杂志》 2019年第7期855-862,共8页
BACKGROUND The vein of Galen aneurismal malformations (VGAM) are rare arteriovenous malformations of the embryonic choroid plexus. They represent about 30% of paediatric neurovascular disorders and show diverse charac... BACKGROUND The vein of Galen aneurismal malformations (VGAM) are rare arteriovenous malformations of the embryonic choroid plexus. They represent about 30% of paediatric neurovascular disorders and show diverse characteristics. The VGAM is constituted by a midline dilated venous structure that receives blood from abnormal macroscopic or microscopic arteriovenous shunting vessels. Two types of VGAM exist, the choroidal and the mural. The treatment represents a challenge with the therapeutic objective to preserve the normal brain development without creating new neurological deficits. CASE SUMMARY We present three cases of VGAM in the early postnatal period and their treatment. All patents were treated with the endovascular technique, which was successful. According to our experience, the endovascular technique is a safe and efficient mode of VGAM treatment. CONCLUSION The objective of treatment aims to child’s normal neurological development. A proper selection of patients and a thorough diagnostic workup is of vital importance. When the endovascular treatment is performed, the primary aim is not a complete VGAM exclusion at one time, which could produce a sudden reversal of blood flow with consequent venous infarction and ischemia. The aim is therefore to occlude as much of the VGAM as needed to relieve the congestive cardiac failure, to gain time and to create the conditions for a normal maturation of the neurovascular system. With the use of endovascular techniques, which represent not only the first choice of treatment but also the only safe therapeutic modality, the natural history of VGAM and their risks may be avoided safely. 展开更多
关键词 VEIN of GALEN Aneurismal MALFORMATION Children TREATMENT Case REPORTS
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8种禾本科观赏草叶片解剖学特征的描述及其适应性分析 预览
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作者 张咏梅 白小明 +1 位作者 田彥锋 龚良建 《草地学报》 CAS CSCD 北大核心 2019年第5期1370-1376,共7页
本研究观察了芒(M.sinensis)属4种观赏草[花叶芒(M.sinensis‘Variegatus’)、斑叶芒(Miscanthus sinensis‘Zebrinus’)、纤细芒(M.sinensis‘Gracilimus’)、金酒吧芒(M.sinensis‘Gold Bar’)]、芨芨草(Achnatherum splendes)、画眉... 本研究观察了芒(M.sinensis)属4种观赏草[花叶芒(M.sinensis‘Variegatus’)、斑叶芒(Miscanthus sinensis‘Zebrinus’)、纤细芒(M.sinensis‘Gracilimus’)、金酒吧芒(M.sinensis‘Gold Bar’)]、芨芨草(Achnatherum splendes)、画眉草(Eragrostis pilosa)、蓝茎冰草(Agropyron smithii)和柳枝稷(Panicum virgatum)叶片结构的解剖学特点,并分析其环境适应性,为观赏草的引种推广和景观配置提供解剖学理论基础。观察发现:这些观赏草具有一般单子叶植物叶片结构特点,且平行叶脉在画眉草、柳枝稷及4种芒属观赏草中发达,在芨芨草和蓝茎冰草中次发达。叶脉外有明显的维管束鞘细胞,成花环形排列。画眉草、芒属、柳枝稷维管束鞘细胞中含有丰富的大型叶绿体,是典型的C 4植物;前两种观赏草主脉由多个大小不一的叶脉和大量薄壁细胞组成。芨芨草和蓝茎冰草为C 3植物,叶肉细胞间气腔发达。芨芨草大、小叶脉尺寸相差巨大,大、小叶脉相间排列,具泡状细胞,具有典型卷叶植物的特点。这8种观赏草叶片多具有中生或旱生结构,对环境的适应性强,结构特点和适应策略各有特色。 展开更多
关键词 观赏草 叶脉 维管束鞘 泡状细胞 气腔
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Enhanced hepatic differentiation in the subpopulation of human amniotic stem cells under 3D multicellular microenvironment 预览
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作者 Kinji Furuya Yun-Wen Zheng +11 位作者 Daisuke Sako Kenichi Iwasaki Dong-Xu Zheng Jian-Yun Ge Li-Ping Liu Tomoaki Furuta Kazunori Akimoto Hiroya Yagi Hiromi Hamada Hiroko Isoda Tatsuya Oda Nobuhiro Ohkohchi 《世界干细胞杂志:英文版(电子版)》 2019年第9期705-721,共17页
BACKGROUND To solve the problem of liver transplantation donor insufficiency,an alternative cell transplantation therapy was investigated.We focused on amniotic epithelial cells(AECs)as a cell source because,unlike in... BACKGROUND To solve the problem of liver transplantation donor insufficiency,an alternative cell transplantation therapy was investigated.We focused on amniotic epithelial cells(AECs)as a cell source because,unlike induced pluripotent stem cells,they are cost-effective and non-tumorigenic.The utilization of AECs in regenerative medicine,however,is in its infancy.A general profile for AECs has not been comprehensively analyzed.Moreover,no hepatic differentiation protocol for AECs has yet been established.To this end,we independently compiled human AEC libraries,purified amniotic stem cells(ASCs),and co-cultured them with mesenchymal stem cells(MSCs)and human umbilical vein endothelial cell(HUVECs)in a 3D system which induces functional hepatic organoids.AIM To characterize AECs and generate functional hepatic organoids from ASCs and other somatic stem cells METHODS AECs,MSCs,and HUVECs were isolated from the placentae and umbilical cords of cesarean section patients.Amnion and primary AEC stemness characteristics and heterogeneity were analyzed by immunocytochemistry,Alkaline phosphatase(AP)staining,and flow cytometry.An adherent AEC subpopulation was selected and evaluated for ASC purification quality by a colony formation assay.AEC transcriptomes were compared with those for other hepatocytes cell sources by bioinformatics.The 2D and 3D culture were compared by relative gene expression using several differentiation protocols.ASCs,MSCs,and HUVECs were combined in a 3D co-culture system to generate hepatic organoids whose structure was compared with a 3D AEC sphere and whose function was elucidated by immunofluorescence imaging,periodic acid Schiff,and an indocyanine green(ICG)test.RESULTS AECs have certain stemness markers such as EPCAM,SSEA4,and E-cadherin.One AEC subpopulation was also either positive for AP staining or expressed the TRA-1-60 and TRA-1-81 stemness markers.Moreover,it could form colonies and its frequency was enhanced ten-fold in the adherent subpopulation after selective primary passage.Bioinfo 展开更多
关键词 3D MICROPATTERN Amniotic epithelial CELLS Amniotic STEM CELLS Hepatic differentiation Heterogeneity HUMAN PLACENTAL tissue HUMAN umbilical vein endothelial CELLS Mesenchymal STEM CELLS Multicellular microenvironment Organoid
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Quantitative analysis of cardiac vein system of normal adults in different phase of cardiac cycle
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作者 贾芳莹 《中国医学文摘:内科学分册(英文版)》 2019年第2期93-94,共2页
Objective To quantitatively measure the coronarysystem parameters at different phase of cardiac cycle innormal adults by 256-slice computed tomography,and toprovide normal reference ranges of coronary sinus,mainlybran... Objective To quantitatively measure the coronarysystem parameters at different phase of cardiac cycle innormal adults by 256-slice computed tomography,and toprovide normal reference ranges of coronary sinus,mainlybranch diameter,sectional area in different phase ofcardiac cycle. Methods A total of 70 patients (30 men,40 women;mean age [49. 89 ± 10. 85]years) were selectedin this analysis. These patients were examined byMSCT with suspected coronary heart disease,and MSCTresults showed no coronary artery disease ( no coronaryartery deformity,variation,right dominant type of coronaryartery) and no other heart disease in these patients.Systolic phase (45%) and diastolic phase image (75%)of the original image were reconstructed,and coronary sinus,mainly branch diameter,sectional area were quantitativelymeasured to analyze the relationship between theabove imaging indexes with the different phase of cardiaccycle. 展开更多
关键词 QUANTITATIVE analysis CARDIAC VEIN SYSTEM IMAGE
西藏东达山3种嵩草属植物叶片解剖结构的比较 预览
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作者 孙晓红 杨春娇 张大才 《西南林业大学学报》 CAS 北大核心 2019年第5期58-65,共8页
为研究3种嵩草属植物叶片形态解剖特征,采用石蜡切片法,分析叶片表皮、叶肉、叶脉等解剖结构的差异,并比较分析叶片不同部位的解剖结构特征。结果表明:3种嵩属草植物叶表皮近、远轴面均由1层表皮细胞组成,线叶嵩草表皮细胞最大,其次为... 为研究3种嵩草属植物叶片形态解剖特征,采用石蜡切片法,分析叶片表皮、叶肉、叶脉等解剖结构的差异,并比较分析叶片不同部位的解剖结构特征。结果表明:3种嵩属草植物叶表皮近、远轴面均由1层表皮细胞组成,线叶嵩草表皮细胞最大,其次为高山嵩草,大花嵩草最小。大花嵩草近轴面主脉凹陷处存在泡状细胞,高山嵩草和线叶嵩草近轴面无泡状细胞。3种嵩草叶表皮均具有较厚的角质层,近轴面角质层均厚于远轴面,线叶嵩草角质层最厚,其次是高山嵩草,大花嵩草最薄。叶肉没有栅栏组织与海绵组织的分化,但有发达的气腔。机械组织和维管束占叶片横切面面积的比例均较小,线叶嵩草最大,高山嵩草次之,大花嵩草最小。线叶嵩草维管束鞘总面积最大,高山嵩草次之,大花嵩草最小。3种嵩草属植物叶片不同部位解剖结构均存在差异,其中高山嵩草在叶片不同部位中存在极显著差异的结构最多,线叶嵩草次之,大花嵩草最少。可见,3种嵩草植物叶片解剖结构差异显著,可以作为分类学的重要依据;均具有典型的旱生植物特点,线叶嵩草和高山嵩草有较厚的角质层,而大花嵩草通过较小的表皮细胞和泡状细胞响应生境干旱化。 展开更多
关键词 嵩草属 叶片部位 解剖结构 叶表皮 叶脉
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Can emergency physicians perform extended compression ultrasound for the diagnosis of lower extremity deep vein thrombosis? 预览
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作者 Elaine Situ-LaCasse Helpees Guirguis +3 位作者 Lucas Friedman Asad E.Patanwala Seth E.Cohen Srikar Adhikari 《世界急诊医学杂志(英文)》 CAS CSCD 2019年第4期205-209,共5页
BACKGROUND:Current point-of-care ultrasound protocols in the evaluation of lower extremity deep vein thrombosis (DVT) can miss isolated femoral vein clots.Extended compression ultrasound (ECUS) includes evaluation of ... BACKGROUND:Current point-of-care ultrasound protocols in the evaluation of lower extremity deep vein thrombosis (DVT) can miss isolated femoral vein clots.Extended compression ultrasound (ECUS) includes evaluation of the femoral vein from the femoral vein/deep femoral vein bifurcation to the adductor canal.Our objective is to determine if emergency physicians (EPs) can learn ECUS for lower extremity DVT evaluation after a focused training session.METHODS:Prospective study at an urban academic center.Participants with varied ultrasound experience received instruction in ECUS prior to evaluation.Two live models with varied levels of difficult sonographic anatomy were intentionally chosen for the evaluation.Each participant scanned both models.Pre-and post-study surveys were completed.RESULTS:A total of 96 ultrasound examinations were performed by 48 participants (11 attendings and 37 residents).Participants' assessment scores averaged 95.8% (95% CI 93.3%-98.3%) on the easier anatomy live model and averaged 92.3% (95% CI 88.4%-96.2%) on the difficult anatomy model.There were no statistically significant differences between attendings and residents.On the model with easier anatomy,all but 1 participant identified and compressed the proximal femoral vein successfully,and all participants identified and compressed the mid and distal femoral vein.With the difficult anatomy,97.9% (95% CI93.8%-102%) identified and compressed the proximal femoral vein,whereas 93.8% (95% CI 86.9%-100.6%) identified and compressed the mid femoral vein,and 91.7% (95% CI83.9%-99.5%) identified and compressed the distal femoral vein.CONCLUSION:EPs at our institution were able to perform ECUS with good reproducibility after a focused training session. 展开更多
关键词 EMERGENCY medicine POINT-OF-CARE ULTRASOUND Deep VEIN THROMBOSIS
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Splenectomy in living donor liver transplantation and risk factors of portal vein thrombosis 预览
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作者 Nobuhiko Kurata Yasuhiro Ogura +3 位作者 Satoshi Ogiso Yasuharu Onishi Hideya Kamei Yasuhiro Kodera 《国际肝胆胰疾病杂志:英文版》 SCIE CAS CSCD 2019年第4期337-342,共6页
Background:Graft inflow modulation(GIM)during adult-to-adult living donor liver transplantation(LDLT)is a common strategy to avoid small-for-size syndrome,and some transplant surgeons attempt small size graft strategy... Background:Graft inflow modulation(GIM)during adult-to-adult living donor liver transplantation(LDLT)is a common strategy to avoid small-for-size syndrome,and some transplant surgeons attempt small size graft strategy with frequent GIM procedures,which are mostly performed by splenectomy,in LDLT.However,splenectomy can cause serious complications such as portal vein thrombosis and overwhelming postsplenectomy infection.Methods:Forty-eight adult-to-adult LDLT recipients were enrolled in this study and retrospectively reviewed.We applied the graft selection criteria,which routinely fulfill graft-to-recipient weight ratio≥0.8%,and consider GIM as a backup strategy for high portal venous pressure(PVP).Results:In our current strategy of LDLT,splenectomy was performed mostly due to hepatitis C and splenic arterial aneurysms,but splenectomy for GIM was intended to only one patient(2.1%).The final PVP values≤20 mmHg were achieved in all recipients,and no significant difference was observed in patient survival or postoperative clinical course based on whether splenectomy was performed or not.However,6 of 18 patients with splenectomy(33.3%)developed postsplenectomy portal vein thrombosis(PVT),while none of the 30 patients without splenectomy developed PVT after LDLT.Splenectomy was identified as a risk factor of PVT in this study(P<0.001).Our study revealed that a lower final PVP could be risk factor of postsplenectomy PVT.Conclusions:Using sufficient size grafts was one of the direct solutions to control PVP,and allowed GIM to be reserved as a backup procedure.Splenectomy should be avoided as much as possible during LDLT because splenectomy was found to be a definite risk factor of PVT.In splenectomy cases with a lower final PVP,a close follow-up is required for early detection and treatment of PVT. 展开更多
关键词 Living donor liver transplantation SPLENECTOMY PORTAL VENOUS pressure Graft-to-recipient weight ratio PORTAL VEIN THROMBOSIS
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Repair of the portal vein using a hepatic ligamentum teres patch for laparoscopic pancreatoduodenectomy: A case report 预览
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作者 Qiang Wei Qiang-Pu Chen +1 位作者 Qing-Hai Guan Wen-Tao Zhu 《世界临床病例杂志》 2019年第18期2879-2887,共9页
BACKGROUND Laparoscopic pancreatoduodenectomy (LPD) has been developed gradually with the advances in surgical laparoscopic techniques. It is technically challenging to perform LPD with portal vein resection and recon... BACKGROUND Laparoscopic pancreatoduodenectomy (LPD) has been developed gradually with the advances in surgical laparoscopic techniques. It is technically challenging to perform LPD with portal vein resection and reconstruction. CASE SUMMARY A 71-year-old female patient was diagnosed with distal cholangiocarcinoma. After preoperative examination and rigorous preoperative preparation, the patient underwent LPD using 3D laparoscopy on July 17, 2018. During the surgery, we found that the tumor invaded the right wall of the portal vein;thus, pancreaticoduodenectomy combined with partial portal vein wall resection was performed. The defect of the portal vein wall was approximately 2.5 cm × 1.0 cm. The hepatic ligamentum teres was excised by laparoscopy and then recanalized in vitro. Following recanalization, the hepatic ligamentum teres was cut longitudinally and then trimmed into vascular patches that were then used to reconstruct the defect of the portal vein through 3D laparoscopy. The operative time was 560 min, and intraoperative blood loss was 100 mL. The duration of the blood occlusion time was 63 min. No blood transfusion was required. The patient underwent enhanced recovery after surgery procedures after the operation. The patient was discharged on postoperative day 11. Follow-up for 6 months after discharge showed no stenosis of the portal vein and good patency of blood flow. CONCLUSION It is safe and feasible to use the hepatic ligamentum teres patch to repair portal vein in LPD. However, the long-term patency of this technique for venous reconstruction requires further investigation. 展开更多
关键词 HEPATIC ligamentum teres PATCH LAPAROSCOPIC PANCREATODUODENECTOMY Portal VEIN REPAIR Case report
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基层医院采用静脉溶栓技术治疗急性缺血性脑卒中的疗效分析 预览
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作者 韦潋滟 徐冬娟 《浙江医学》 CAS 2019年第15期1625-1628,1632共5页
目的探讨基层医院采用重组组织型纤溶酶原激活剂(rt-PA)静脉溶栓技术在治疗急性缺血性脑卒中的疗效和安全性。方法选择468例在本市5家医院接受治疗的急性缺血性脑卒中患者,将其中242例采用rt-PA静脉溶栓治疗的患者设为观察组,226例采用... 目的探讨基层医院采用重组组织型纤溶酶原激活剂(rt-PA)静脉溶栓技术在治疗急性缺血性脑卒中的疗效和安全性。方法选择468例在本市5家医院接受治疗的急性缺血性脑卒中患者,将其中242例采用rt-PA静脉溶栓治疗的患者设为观察组,226例采用常规治疗的患者设为对照组。对比两组患者的临床疗效、两组患者溶栓前、溶栓后12h、7d、14d美国国立卫生研究院卒中量表(NIHSS)评分、两组不良反应发生情况。结果与对照组比较,观察组总有效率明显较高,差异有统计学意义(P<0.05)。两组患者溶栓前的NIHSS评分差异无统计学意义(P>0.05);观察组患者溶栓后12h、7d、14d的NIHSS评分显著低于对照组,差异均有统计学意义(均P<0.05)。两组非症状性颅内出血和症状性颅内出血比较差异无统计学意义(P>0.05),两组对出现非症状性颅内出血和症状性颅内出血的病例并未作特殊处理,14 d后予CT检查发现出血均被吸收。观察组泌尿道出血和牙龈出血比例与对照组比较明显较高,差异有统计学意义(P<0.05)。结论急性缺血性脑卒中患者采用rt-PA静脉溶栓治疗,可明显改善临床症状和体征,改善神经功能缺损程度,不良反应较低。有条件的基层医院应积极推广rt-PA静脉溶栓技术,改善临床疗效和预后,提高患者生存质量。 展开更多
关键词 脑卒中 缺血 溶栓 静脉 美国国立卫生研究院卒中量表
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地塞米松不同途径给药治疗突发性聋的临床效果比较 预览
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作者 陈声伟 陈伟东 +1 位作者 林楚标 方忠泓 《中国当代医药》 2019年第26期123-126,共4页
目的探讨地塞米松不同途径给药治疗突发性聋的效果。方法选取2018年2月~2019年2月我院收治的98例突发性聋患者作为研究对象,采用随机数字表法将其分为静脉滴注组(32例)、鼓室注射组(33例)以及耳后鼓膜下注射组(33例)。静脉滴注组患者采... 目的探讨地塞米松不同途径给药治疗突发性聋的效果。方法选取2018年2月~2019年2月我院收治的98例突发性聋患者作为研究对象,采用随机数字表法将其分为静脉滴注组(32例)、鼓室注射组(33例)以及耳后鼓膜下注射组(33例)。静脉滴注组患者采取静脉注射地塞米松的给药方式,鼓室注射组患者采取经外耳道鼓室注射地塞米松的给药方式,耳后鼓膜下注射组患者采用耳后鼓膜下注射地塞米松的给药方式。比较三组患者的听力恢复情况以及耳鸣、耳闷等症状恢复情况。结果鼓室注射组和耳后鼓膜下注射组患者的听力恢复总有效率均高于静脉滴注组,差异有统计学意义(P<0.05)。鼓室注射组和耳后鼓膜下注射组患者的耳鸣、耳闷等症状恢复有效率均高于静脉滴注组,差异有统计学意义(P<0.05)。结论采用地塞米松鼓室给药和耳后鼓膜下注射给药治疗突发性聋患者的临床效果显著,能够有效改善患者的耳鸣、耳闷症状。 展开更多
关键词 突发性耳聋 地塞米松 静脉 鼓室 外耳道
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Sectoral changes of the peripapillary choroidal thickness in patients with unilateral branch retinal vein occlusion
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作者 Na Eun Lee Hae Min Kang +2 位作者 Jeong Hoon Choi Hyoung Jun Koh Sung Chul Lee 《国际眼科杂志:英文版》 SCIE CAS 2019年第3期472-479,共8页
AIM: To investigate sectoral changes in the mean peripapillary choroidal thickness(PCT) in patients with unilateral branch retinal vein occlusion(BRVO). METHODS: This retrospective, interventional study included 41 pa... AIM: To investigate sectoral changes in the mean peripapillary choroidal thickness(PCT) in patients with unilateral branch retinal vein occlusion(BRVO). METHODS: This retrospective, interventional study included 41 patients with acute, unilateral BRVO without macular edema. All patients completed at least a 6-month follow-up period. The PCT was measured at eight locations(temporal, superotemporal, superior, superonasal, nasal, inferonasal, inferior, and inferotemporal). In addition to calculating the average of all locations, the peripapillary choroidal area was divided into four sectors: superior(average of superotemporal PCT, superior PCT, and superonasal PCT), temporal, inferior(average of inferotemporal PCT, inferior PCT, and inferonasal PCT), and nasal. RESULTS: In the BRVO-affected eyes, the mean PCT was 177.7±69.8 μm(range, 70.1-396.0 μm) at baseline and 127.8±54.8 μm(range, 56.4-312.1 μm) at 6 mo(P<0.001). In the non-affected contralateral eyes, the mean PCT was 192.5±60.6 μm(range, 61.4-365.0 μm) at baseline and 165.9±61.1 μm(range, 56.8-326.8 μm) at 6 mo(P<0.001). In sectoral analysis, the mean PCT in each sector was significantly reduced in over 6 mo in the BRVO-affected eyes(all P<0.001). In the non-affected contralateral eyes, the mean PCT was not significantly changed in any sector over the 6-month follow-up period(superior sector, P=0.143;temporal sector, P=0.825;inferior sector, P=0.192;and nasal sector, P=0.599).CONCLUSION: Sectoral analysis shows that the mean PCTs in all sectors are reduced significantly over 6 mo in the BRVO-affected eyes, but not in the non-affected contralateral eyes. 展开更多
关键词 branch RETINAL VEIN OCCLUSION CHOROID choroidal thickness peripapillary choroidal thickness
Chance and challenge of associating liver partition and portal vein ligation for staged hepatectomy 预览
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作者 Fei Xiang Ze-Min Hu 《国际肝胆胰疾病杂志:英文版》 SCIE CAS CSCD 2019年第3期214-222,共9页
Background: The associating liver partition and portal vein ligation for staged hepatectomy(ALPPS) was first performed in 2007. The critical patient selection, timing to perform the second stage operation, and minimal... Background: The associating liver partition and portal vein ligation for staged hepatectomy(ALPPS) was first performed in 2007. The critical patient selection, timing to perform the second stage operation, and minimally invasive technique are three key factors for patient outcomes. The aim of this review is to summarize published data on these three aspects. Data sources: Studies were identified by searching Pub Med for articles published from January 2007 to October 2018, using the keywords “associating liver partition and portal vein ligation for staged hepatectomy” or “ALPPS” or “in situ split”. Studies on colorectal liver metastasis(CRLM), perihilar cholangiocarcinoma(PHC), and hepatocellular carcinoma(HCC) indicated for ALPPS, cutoff values to determine the timing of stage 2, as well as modifications of ALPPS were included. Results: The mortality of ALPPS for CRLM is declining, for PHC is high. In patients with HCC, essential hypertrophy makes the ALPPS safer. However, the degrees of fibrosis affect the hypertrophy. The future liver remnant volume is still the gold standard to start the second stage. Hepatobiliary scintigraphy plays an important role in quantitatively assessing liver function, whereas cutoff values need to be further calibrated. Less-invasive ALPPS modifications have increased and led to a decreased mortality. Conclusions: ALLPS improved the CRLM outcomes;ALPPS is feasible in patients with PHC after failure of portal vein embolization;ALPPS may be an option for HCC patients with major vascular invasion and thrombosis. The simplified and less-invasive ALPPS is the trend. 展开更多
关键词 HEPATECTOMY LIVER regeneration Portal VEIN Colorectal LIVER metastasis Hepatocellular carcinoma Perihilar CHOLANGIOCARCINOMA
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Hepatocellular carcinoma successfully treated with ALPPS and apatinib:A case report 预览
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作者 Ling Liu Nian-Feng Li +1 位作者 Qi Zhang Ling Lin 《世界临床病例杂志》 2019年第16期2384-2392,共9页
BACKGROUND Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) has becoming ever more recognized in the treatment of hepatocellular carcinoma (HCC).Nevertheless,long-term survival rate ... BACKGROUND Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) has becoming ever more recognized in the treatment of hepatocellular carcinoma (HCC).Nevertheless,long-term survival rate and postoperative complications are far from ideal,mainly since the majority of patients treated with ALPPS surgery have large or multiple lesions and microvascular tumor thrombus.CASE SUMMARY We present the case of a 47-year-old male patient with a huge right hepatic mass and an estimated insufficient residual liver,who was successfully treated with ALPPS surgery and apatinib.Postoperative pathology revealed HCC with several significant microvascular embolisms.Twenty months after operation,no tumor reoccurrence was observed.CONCLUSION Our case indicated that combined targeted drug therapy with ALPPS can lead to long-term survival for patients with large HCC. 展开更多
关键词 HEPATOCELLULAR carcinoma Associating liver PARTITION and PORTAL VEIN LIGATION for staged HEPATECTOMY Apatinib Case report
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康柏西普联合光凝治疗视网膜分支静脉阻塞黄斑水肿
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作者 赵学军 张小鹏 张超玲 《中华眼外伤职业眼病杂志》 2019年第2期143-146,共4页
目的观察玻璃体内注射康柏西普联合光凝治疗缺血型视网膜分支静脉阻塞所致黄斑水肿的临床疗效。方法回顾性分析2014年6月至2018年4月在本院眼科缺血型视网膜分支静脉阻塞所致黄斑水肿48例(48眼)的临床资料,患者按住院顺序平均分为观察... 目的观察玻璃体内注射康柏西普联合光凝治疗缺血型视网膜分支静脉阻塞所致黄斑水肿的临床疗效。方法回顾性分析2014年6月至2018年4月在本院眼科缺血型视网膜分支静脉阻塞所致黄斑水肿48例(48眼)的临床资料,患者按住院顺序平均分为观察组和对照组,观察组行康柏西普联合视网膜激光光凝治疗,对照组直接行视网膜激光光凝治疗。观察两组治疗前及治疗后1周、1个月、3个月的最佳矫正视力、黄斑中心区视网膜厚度及并发症情况。结果观察组和对照组的视力和黄斑中心区视网膜厚度的差异在治疗后各时间点均有统计学意义(P<0.05)。结论玻璃体内注射康柏西普联合激光治疗缺血型视网膜分支静脉阻塞所致黄斑水肿可提高视力,减轻水肿,预防并发症的发生。 展开更多
关键词 阻塞 分支静脉 视网膜 水肿 黄斑 康柏西普 玻璃体内注射 光凝 激光
Non-negative locality-constrained vocabulary tree for finger vein image retrieval
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作者 Kun SU Gongping YANG +2 位作者 Lu YANG Peng SU Yilong YIN 《中国计算机科学前沿:英文版》 SCIE EI CSCD 2019年第2期318-332,共15页
Finger vein image retrieval is a biometric identification technology that has recently attracted a lot of attention. It has the potential to reduce the search space and has attracted a considerable amount of research ... Finger vein image retrieval is a biometric identification technology that has recently attracted a lot of attention. It has the potential to reduce the search space and has attracted a considerable amount of research effort recently. It is a challenging problem owing to the large number of images in biometric databases and the lack of efficient retrieval schemes. We apply a hierarchical vocabulary tree modelbased image retrieval approach because of its good scalability and high efficiency. However, there is a large accumulative quantization error in the vocabulary tree (VT) model that may degrade the retrieval precision. To solve this problem, we improve the vector quantization coding in the VT model by introducing a non-negative locality-constrained constraint: the non-negative locality-constrained vocabulary tree-based image retrieval model. The proposed method can effectively improve coding performanee and the discriminative power of local features. Extensive experiments on a large fused finger vein database demonstrate the superiority of our encoding method. Experimental results also show that our retrieval strategy achieves better performanee than other state-of-theart methods, while maintaining low time complexity. 展开更多
关键词 non-negative locality-constrained vocabulary tree finger vein image retrieval large scale inverted INDEXING
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