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经导管主动脉瓣置换术后患者发生结构性瓣膜退化的研究进展 [PDF]

open access: yes浙江大学学报. 医学版
结构性瓣膜退化(SVD)是人工心脏瓣膜的自身组件发生内在不可逆的病理改变,表现为瓣膜纤维化、钙化、磨损、撕裂、松弛以及支架断裂或变形等,最终导致瓣膜狭窄和/或反流。经导管主动脉瓣置换术(TAVR)后出现SVD的发生机制可能与机械应力、免疫反应及钙磷代谢异常有关。TAVR后SVD的危险因素包括患者因素(如年龄、心血管基础疾病及其合并症)、瓣膜因素(如材料、处理方式、类型)和手术因素(如瓣膜损伤、支架扩张不良、支架释放形态不规则)。临床上影像学评估TAVR后SVD时,超声心动图 ...
晏 梦云, 赵 振刚, 陈 茂
doaj   +2 more sources

西罗莫司洗脱支架对气管支架内再狭窄的作用

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2016
摘 要: 【目的】 评价西罗莫司洗脱支架的可行性、安全性,明确其对兔子气管支架内再狭窄的作用。【方法】 将16只新西兰白兔分为实验组(n = 8)和对照组(n = 8),实验组横向切开兔气管,置入自制西罗莫司洗脱支架后闭合气管。对照组同等条件下置入裸金属支架。分别于术后2、4周使用超细气管镜观察气管支架内肉芽组织生长情况。术后第4周处死所有动物,取气管标本,HE染色后进行组织学观察。【结果】 支架内肉芽组织厚度(?滋m)实验组(813 ± 236)小于对照组(1578 ± 508)(P = 0.004),
doaj   +1 more source

雷帕霉素洗脱支架与金属裸支架治疗症状性颅内动脉粥样硬化性狭窄的效果比较Comparison of Rapamycin-Eluting Stent with Bare-Metal Stent in Patients with Symptomatic IntracranialAtherosclerotic Stenosis

open access: yesZhongguo cuzhong zazhi, 2022
Objective To observe the clinical efficacy and safety of rapamycin-eluting stent (RES) and baremetal stent (BMS) in treatment of symptomatic intracranial atherosclerotic stenosis (ICAS).
凌一童, 孙玉杰, 李广文, 刘彤晖, 李野, 张勇
doaj   +1 more source

Interventional therapy and perioperative nursing management of Budd-Chiari syndrome: A report of 139 cases (布-加综合征的介入治疗及围术期护理管理: 附139例报告)

open access: yes中西医结合护理, 2023
Objective This article aims to study the effect of endovascular treatment of Budd-Chiari syndrome (BCS) and perioperative nursing experience. Methods The clinical data of 139 patients with BCS who received endovascular treatment in our hospital from ...
ZHANG Nan (张楠)   +1 more
doaj   +1 more source

延长氯吡格雷联合拜阿司匹林治疗冠心病合并糖尿病PCI术后的效果及安全性 [PDF]

open access: yes, 2019
目的:研究延长氯吡格雷+拜阿司匹林运用于冠心病合并糖尿病经皮冠状动脉介入术(PCI)后的价值。方法:选择厦门大学附属心血管病医院2014年7月-2016年6月纳入的78例冠心病合并糖尿病PCI术患者,按照随机数字表法分为研究组与对照组,各39例。研究组采取延长氯吡格雷+拜阿司匹林治疗,对照组采取常规治疗,对比两组治疗结果。结果:研究组心力衰竭、心绞痛再发、非致死性心肌梗死及心源性死亡的发生率均低于对照组(P0.05)。研究组不良反应发生率为5.13%,与对照组的10.26%对比,差异无统计学意义(P>0.
李文彬, 程晔, 邹素娟
core   +1 more source

无症状性颈内动脉狭窄和颅内动脉狭窄诊治进展 Advances in Study of Asymptomatic Carotid Artery Stenosis and Asymptomatic Intracranial Artery Stenosis

open access: yesZhongguo cuzhong zazhi, 2023
本文探讨无症状性颈内动脉狭窄(asymptomatic carotid artery stenosis,aCAS)或无症状性颅内动脉狭窄(asymptomatic intracranial artery stenosis,aICAS)的优化筛查策略,以及基于分子标志物和影像学的精准预防策略。aCAS的患病率为1.5%,其风险评分有助于aCAS的筛查。aICAS患病率为6.9%~12.8%,与研究人群和筛查方法的不同有关。对于aCAS或aICAS患者,动脉管腔的狭窄程度和管壁的稳定性与卒中风险相关 ...
李雯博,刘洁,刘阳,张龙友,李世平,郑华光
doaj   +1 more source

磁共振成像与CT在膝关节交叉韧带损伤诊治重建中的效果 [PDF]

open access: yes, 2019
交叉韧带是膝关节中起最大作用的一个部分,它能通过限制小腿的内翻、外翻和前后移动来保持膝关节的稳定,对膝关节的运动有着重要作用。交叉韧带连接胫骨髁间隆起和股骨髁间窝,以铰链形式存在,防止胫骨朝着股骨方向前后移位[1]。膝关节的交叉韧带分为两条:前交叉韧带与后交叉韧带,它们位置不同,所起的作用也有较大差异 ...
林建忠, 林玉琳, 肖东健
core   +1 more source

Application of Intravascular Imaging in Forensic Autopsy#br# [PDF]

open access: yes, 2019
With the emergence of new technologies and devices including minimally invasive catheters and rotary couplers, the application of imaging technology such as traditional ultrasound and optical coherence tomography (OCT) is gradually expanded.
LI Yang, WEI Zhi-bin, DING Yu-han,et al.
core   +1 more source

静脉窦支架置入术治疗合并静脉窦狭窄的特发性颅内高压的单中心研究 Effectiveness of Venous Sinus Stenting on Idiopathic Intracranial Hypertension with Venous Sinus Stenosis: A Single Center Study

open access: yesZhongguo cuzhong zazhi, 2019
目的 探讨静脉窦支架置入术对合并静脉窦狭窄的特发性颅内高压(idiopathic intracranial hypertension, II H)的治疗作用。 方法 回顾性分析2009年7月-2019年1月在解放军总医院第一医学中心确诊并行静脉窦狭窄支架置 入术的IIH患者的临床资料。术前清醒状态和术后即刻测静脉窦狭窄远近端压力差。术后1周复查腰椎 穿刺测颅内压,随访术后1年临床症状改善情况。术后6~12个月行DSA检查,评估静脉窦支架置入术 对合并静脉窦狭窄的IIH的治疗作用。 结果 共纳入97例患者,
侯磊,杜志华,曹向宇,苏慧,刘新峰,张荣举,李宝民,王君
doaj   +1 more source

Study on intercellular communication and key genes of smooth muscle cells in human coronary atherosclerosis based on single cell sequencing technology [PDF]

open access: yes
Objective·To use single-cell RNA sequencing (scRNA-Seq) technology to interpret the cellular communication landscape of coronary atherosclerosis (CA), and to explore the dominant cell subsets and their key genes.Methods·The GSE131778 data set was ...
GUAN Huaimin   +4 more
core   +1 more source

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