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Three-dimensional visualization technology for guiding one-step percutaneous transhepatic cholangioscopic lithotripsy for the treatment of complex hepatolithiasis 被引量:4
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作者 Yong-Qing Ye Ya-Wen Cao +6 位作者 Rong-Qi li en-ze li Lei Yan Zhao-Wei Ding Jin-Ming Fan Ping Wang Yi-Xiang Wu 《World Journal of Gastroenterology》 SCIE CAS 2024年第28期3393-3402,共10页
BACKGROUND Biliary stone disease is a highly prevalent condition and a leading cause of hospitalization worldwide.Hepatolithiasis with associated strictures has high residual and recurrence rates after traditional mul... BACKGROUND Biliary stone disease is a highly prevalent condition and a leading cause of hospitalization worldwide.Hepatolithiasis with associated strictures has high residual and recurrence rates after traditional multisession percutaneous transhepatic cholangioscopic lithotripsy(PTCSL).AIM To study one-step PTCSL using the percutaneous transhepatic one-step biliary fistulation(PTOBF)technique guided by three-dimensional(3D)visualization.METHODS This was a retrospective,single-center study analyzing,140 patients who,between October 2016 and October 2023,underwent one-step PTCSL for hepatolithiasis.The patients were divided into two groups:The 3D-PTOBF group and the PTOBF group.Stone clearance on choledochoscopy,complications,and long-term clearance and recurrence rates were assessed.RESULTS Age,total bilirubin,direct bilirubin,Child-Pugh class,and stone location were similar between the 2 groups,but there was a significant difference in bile duct strictures,with biliary strictures more common in the 3D-PTOBF group(P=0.001).The median follow-up time was 55.0(55.0,512.0)days.The immediate stone clearance ratio(88.6%vs 27.1%,P=0.000)and stricture resolution ratio(97.1%vs 78.6%,P=0.001)in the 3D-PTOBF group were significantly greater than those in the PTOBF group.Postoperative complication(8.6%vs 41.4%,P=0.000)and stone recurrence rates(7.1%vs 38.6%,P=0.000)were significantly lower in the 3D-PTOBF group.CONCLUSION Three-dimensional visualization helps make one-step PTCSL a safe,effective,and promising treatment for patients with complicated primary hepatolithiasis.The perioperative and long-term outcomes are satisfactory for patients with complicated primary hepatolithiasis.This minimally invasive method has the potential to be used as a substitute for hepatobiliary surgery. 展开更多
关键词 HEPATOLITHIASIS One-step percutaneous transhepatic cholangioscopic lithotripsy Biliary disease Three-dimensional visualization Clinical efficacy
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Development and validation of a nomogram for predicting lymph node metastasis in early gastric cancer
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作者 Jing-Yang He Meng-Xuan Cao +5 位作者 en-ze li Can Hu Yan-Qiang Zhang Ruo-Lan Zhang Xiang-Dong Cheng Zhi-Yuan Xu 《World Journal of Gastrointestinal Oncology》 2024年第7期2960-2970,共11页
BACKGROUND Lymph node metastasis(LNM)significantly impacts the treatment and prognosis of early gastric cancer(EGC).Consequently,the precise prediction of LNM risk in EGC patients is essential to guide the selection o... BACKGROUND Lymph node metastasis(LNM)significantly impacts the treatment and prognosis of early gastric cancer(EGC).Consequently,the precise prediction of LNM risk in EGC patients is essential to guide the selection of appropriate surgical approaches in clinical settings.AIM To develop a novel nomogram risk model for predicting LNM in EGC patients,utilizing preoperative clinicopathological data.METHODS Univariate and multivariate logistic regression analyses were performed to examine the correlation between clinicopathological factors and LNM in EGC patients.Additionally,univariate Kaplan-Meier and multivariate Cox regression analyses were used to assess the influence of clinical factors on EGC prognosis.A predictive model in the form of a nomogram was developed,and its discrimination ability and calibration were also assessed.RESULTS The incidence of LNM in the study cohort was 19.6%.Multivariate logistic regression identified tumor size,location,degree of differentiation,and pathological type as independent risk factors for LNM in EGC patients.Both tumor pathological type and LNM independently affected the prognosis of EGC.The model’s performance was reflected by an area under the curve of 0.750[95%confidence interval(CI):0.701-0.789]for the training group and 0.763(95%CI:0.687-0.838)for the validation group.CONCLUSION A clinical prediction model was constructed(using tumor size,low differentiation,location in the middle-lower region,and signet ring cell carcinoma),with its score being a significant prognosis indicator. 展开更多
关键词 Early gastric cancer Lymph node metastasis NOMOGRAM Overall survival Signet ring cell carcinoma
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“点击化学”离子化聚砜对磺化聚醚醚酮/聚砜共混膜性能的影响研究
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作者 陈琛 党杰 +4 位作者 李小雨 许召赞 李恩泽 成怀刚 程芳琴 《高分子学报》 SCIE CAS CSCD 北大核心 2023年第12期1899-1910,共12页
为制备氢离子/二价金属离子渗透选择性优异的阳离子交换膜,探究功能基团(季铵基团、羧基)含量对膜性能的影响规律,采用“点击化学”反应,在聚砜(PSF)侧链接枝季铵基团和羧基获得离子化PSF,将其与磺化聚醚醚酮(SPEEK)共混制备阳离子交换... 为制备氢离子/二价金属离子渗透选择性优异的阳离子交换膜,探究功能基团(季铵基团、羧基)含量对膜性能的影响规律,采用“点击化学”反应,在聚砜(PSF)侧链接枝季铵基团和羧基获得离子化PSF,将其与磺化聚醚醚酮(SPEEK)共混制备阳离子交换膜,分别通过离子化PSF添加量、功能化度和侧链阴阳离子比例调控共混膜中季铵基团含量,探究其对膜性能的影响规律.膜对氢离子和亚铁离子的渗透选择性随着离子化PSF含量和功能化度的增加均呈现先升高后降低的趋势,当离子化PSF的季铵与羧基比例为1:1时,共混膜的渗透选择性最佳.季铵基团与磺酸基形成离子对有利于抑制膜溶胀,通过Donnan排斥和尺寸筛分效应提高阳离子交换膜的渗透选择性;但当季铵基团的含量超过一定值,离子簇的形成导致其在膜内分布不均,膜的渗透选择性有所降低.羧基则通过形成氢键减小膜的氢离子渗透性降低幅度. 展开更多
关键词 阳离子交换膜 渗透选择性 点击化学 离子簇
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