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基于心脏模型的心肌梗死病变仿真研究 被引量:2
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作者 刘锋 肖国臻 +2 位作者 刘亚群 夏灵 吕维雪 《自然科学进展(国家重点实验室通讯)》 2000年第11期1018-1023,共6页
根据心肌纤维结构和复合材料理论建立了人体左心室的三维有限元力学模型,进行了心肌梗死的病变仿真研究。结果表明兴奋延迟使得左心室功能异常,心壁运动不协调,病变区应力集中。仿真结果与加标记的核磁共振成像结果及其他模型进行了对... 根据心肌纤维结构和复合材料理论建立了人体左心室的三维有限元力学模型,进行了心肌梗死的病变仿真研究。结果表明兴奋延迟使得左心室功能异常,心壁运动不协调,病变区应力集中。仿真结果与加标记的核磁共振成像结果及其他模型进行了对比分析,结果表明该模型可用于探讨心脏的病理机制。该研究将心脏电生理模型和力学模型进行了有机结合,为建立具有电生理和力学特性的虚拟心脏打下了良好基础。 展开更多
关键词 人体左心室 电生理 心肌梗死病变 心脏模型 仿真
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急性心肌梗死桥血管病变急诊介入治疗的临床研究——年龄组对比分析 被引量:5
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作者 王禹 A.H.Katus +14 位作者 K.K.Hasse 盖鲁粤 杨庭树 沈洪 计达 陈练 刘宏斌 孙志军 任艺红 金琴花 王有 杜洛山 李志坚 邵如宏 李天德 《中国危重病急救医学》 CAS CSCD 北大核心 2005年第3期137-141,共5页
目的 评价包括 ST段抬高性和非抬高性急性心肌梗死 (AMI)患者在急诊冠状动脉 (冠脉 )造影明确其梗塞相关血管为静脉搭桥血管 (SVBG)后 ,进行急诊直接经皮血管成型术 (PCI)的临床有效性及安全性 ;比较≥ 70岁与 <70岁两组患者 SVBG... 目的 评价包括 ST段抬高性和非抬高性急性心肌梗死 (AMI)患者在急诊冠状动脉 (冠脉 )造影明确其梗塞相关血管为静脉搭桥血管 (SVBG)后 ,进行急诊直接经皮血管成型术 (PCI)的临床有效性及安全性 ;比较≥ 70岁与 <70岁两组患者 SVBG病变再通的临床效果和不良事件。方法 分析 2 0 0 3年 1月—2 0 0 4年 11月在解放军总医院和德国海德堡大学附属海德堡医院行急诊介入治疗的连续 AMI患者 30 9例 ,其梗塞相关血管为 SVBG患者。全部患者行急诊冠脉造影 ,根据造影显示梗塞相关 SVBG血流为心肌梗死溶栓治疗临床试验 (TIMI) 级以下 ,或同时伴有较明显胸痛 ,梗塞对应心电图导联 ST段仍抬高或压低 ,并均在确认无介入治疗禁忌证后行急诊 PCI治疗 (包括球囊成型术或支架术 )。比较两组患者即刻 SVBG再通效果、血管有效再通成功率、住院期间病死率及短期临床效果。结果 急诊 PCI治疗 SVBG罪犯血管共 30 9例支 ,≥ 70岁组 2 13例 ,<70岁组 96例。两组患者中应用各种血管远端保护器者 4 7例 ,其比例两组间差异无显著性。两组患者行球囊扩张术和支架植入术的技术成功率、急性再闭塞率差异均无显著性。≥ 70岁组 SVBG直接 PCI后发生慢血流或无血流现象明显增多 ,住院期间绝对死亡数多 (2 0 /2 4例 ) ,均较 <70岁组明显? 展开更多
关键词 急性心肌桥血管病变 急诊措施 介入治疗 年龄 保护器 血管远端
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直接支架置入与预扩张后支架置入处理急性心肌梗死相关病变的对比研究 被引量:4
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作者 李成祥 贾国良 +4 位作者 郭文怡 李伟杰 栾荣华 王琼 吕安林 《中国介入心脏病学杂志》 2003年第5期248-250,共3页
目的 探讨直接支架置入术处理急性心肌梗死相关病变 (IRL)的安全性、可行性 ,以及扩张压对无复流 慢血流发生率的影响。方法 发病 4 8h内行介入治疗的首次急性心肌梗死患者 ,在导丝通过后IRL开通 ,弥漫性或巨大血栓形成、明显钙化、... 目的 探讨直接支架置入术处理急性心肌梗死相关病变 (IRL)的安全性、可行性 ,以及扩张压对无复流 慢血流发生率的影响。方法 发病 4 8h内行介入治疗的首次急性心肌梗死患者 ,在导丝通过后IRL开通 ,弥漫性或巨大血栓形成、明显钙化、长度≥ 2 0mm的病变除外。比较球囊预扩张组 (A组 )、直接支架组 (B组 )的成功率和严重并发症发生率。比较最大扩张压≤ 12 16kPa(12atm ,1atm =10 1 32 5kPa) ,与 >12 16kPa患者支架置入后即刻无复流 慢血流的发生率。结果 A组 35例 ,B组 4 2例 ,A、B组的成功率分别为 10 0 %和 95 % ,B组 2例 (5 % )因IRL成角 ,支架无法直接通过 ,球囊预扩张后均成功置入原支架。两组无 1例发生介入治疗相关的严重心脏事件 (死亡、再梗死、急诊冠状动脉旁路移植术 )。最大扩张压≤ 12 16kPa和 >12 16kPa患者支架置入后即刻无复流 慢血流的发生率分别为 7%和 32 % (P <0 0 5 )。结论 直接置入支架术处理IRL ,安全可行 ,成功率高 ;高压扩张置入支架后即刻无复流 慢血流发生率高。 展开更多
关键词 直接支架置入术 预扩张 急性心肌相关病变 围手术期 并发症 无复流 慢血流
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药物球囊在急性心肌梗死分叉病变中的应用 被引量:1
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作者 高爽 罗育红 《中国实用医药》 2020年第3期191-193,共3页
急性心肌梗死经皮冠状动脉介入治疗(PCI),要求手术过程迅速、操作尽量简单,以开通梗死相关血管,血管出现Ⅲ级前向血流为目的。冠状动脉分叉病变有单支架术以及双支架术。急性心肌梗死分叉病变无论是必要时边支置入(Provisional T)支架术... 急性心肌梗死经皮冠状动脉介入治疗(PCI),要求手术过程迅速、操作尽量简单,以开通梗死相关血管,血管出现Ⅲ级前向血流为目的。冠状动脉分叉病变有单支架术以及双支架术。急性心肌梗死分叉病变无论是必要时边支置入(Provisional T)支架术,还是双支架术,手术过程相对复杂,手术时间相对较长,加大急性心肌梗死病变的风险。本文探讨急性心肌梗死分叉病变使用Provisional T支架术+药物涂层球囊(DCB)处理边支开口的策略,既能操作简单快捷,又能解决边支开口狭窄问题,是一种有价值的PCI治疗方案。 展开更多
关键词 冠状动脉分叉病变 急性心肌分叉病变 必要时边支置入支架术 药物涂层球囊
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延迟性PTCA对多支病变急性心肌梗死左心功能和预后的影响
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作者 杨伟 金惠根 +3 位作者 尚孝堂 江蓓湖 刘宗军 汪蔚青 《介入放射学杂志》 CSCD 2002年第3期202-203,共2页
关键词 延迟性PTCA 多支病变急性心肌 左心功能 预后
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急性心肌梗死后非梗死相关动脉狭窄的介入治疗策略
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作者 杨露 魏盟 《心血管病学进展》 CAS 2008年第6期862-864,共3页
急性心肌梗死多支病变患者急诊冠脉介入手术开通梗死相关动脉后,残余的非梗死相关动脉狭窄的介入治疗问题一直存在争议。现就如何评价非梗死相关动脉狭窄及如何选择最能从分期冠脉介入术中获益的患者等问题进行综述。
关键词 急性心肌多支病变 相关动脉狭窄 分期冠脉介入手术
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高血压病人如何应对夏季酷暑
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作者 陈文贵 《心血管病防治知识》 2014年第8期28-30,共3页
酷暑天气,高温高湿,当气温超过33℃时,对高血压合并有心脑血管疾病、糖尿病患者来说,极容易诱发脑血栓,脑出血和心肌梗死病变。因此,应在如下方面加以注意。
关键词 高血压病人 夏季 心脑血管疾病 心肌梗死病变 高温高湿 糖尿病 脑血栓 脑出血
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高血压病人如何应对夏季酷暑
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作者 高祥云 《开卷有益(求医问药)》 2007年第7期54-55,共2页
酷暑天气,高温高湿,当气温超过33℃时,对高血压合并有心脑血管疾病、糖尿病患者来说,极容易诱发脑血栓、脑出血和心肌梗死病变,因此,应在如下方面加以注意。
关键词 高血压病人 夏季 心脑血管疾病 心肌梗死病变 高温高湿 糖尿病患 脑血栓 脑出血
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Stenting versus non-stenting treatment of intermediate stenosis culprit lesion in acute ST-segment elevation myocardial infarction: a multicenter random- ized clinical trial 被引量:14
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作者 Jing DAI Shu-Zheng LYU +12 位作者 Yun-Dai CHEN Xian-Tao SONG Min ZHANG Wei-Min LI Yang ZHENG Shang-Yu WEN Shao-Ping NIE Yu-Jie ZENG Hai GAO Yi-Tong MA Shu-Yang ZHANG Li-Jun GUO Zheng ZHANG 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2017年第2期108-117,共10页
Background The benefit/risk ratio of stenting in acute ST-segment elevation myocardial infarction (STEMI) patients with single vessel intermediate stenosis culprit lesions merits further study, therefore the subject... Background The benefit/risk ratio of stenting in acute ST-segment elevation myocardial infarction (STEMI) patients with single vessel intermediate stenosis culprit lesions merits further study, therefore the subject of the present study. Methods and results It was a pro- spective, multicenter, randomized controlled trial. Between April 2012 and July 2015, 399 acute STEMI patients with single vessel disease and intermediate (40%-70%) stenosis of the culprit lesion before or after aspiration thrombectomy and/or intracoronary tirofiban (15 pg/kg) were enrolled and were randomly assigned (h 1) to stenting group (n = 201) and non-stenting group (n = 198). In stenting group, patients received pharmacologic therapy plus standard percutaneous coronary intervention (PCI) with stent implantation. In non-stenting group, pa- tients received pharmacologic therapy and PCI (thrombectomy), but without dilatation or stenting. Primary endpoint was 12-month rate of major adverse cardiac and eerebrovascular events (MACCE), a composite of cardiac death, non-fatal myocardial infarction (M1), repeat re- vascularization and stroke. Secondary endpoints were 12-month rates of all cause death, ischemia driven admission and bleeding complica- tion. Median follow-up time was 12.4 ~ 3.1 months. At 12 months, MACCE occurred in 8.0% of the patients in stenting group, as compared with 15.2% in the non-stenting group (adjusted HR: 0.42, 95% Ch 0.19-0.89, P = 0.02). The stenting group had lower non-fatal MI rate than non-stenting group, (1.5% vs. 5.5%, P = 0.03). The two groups shared similar cardiac death, repeat revascularization, stroke, all cause death, ischemia driven readmission and bleeding rates at 12 months. Conclusions Stent implantation had better efficacy and safety in reducing MACCE risks among acute STEMI patients with single vessel intermediate stenosis culprit lesions. 展开更多
关键词 Acute myocardial infarction Anti-thrombotic therapy Clinical trial Primary percutaneous coronary intervention Stent ST-segment elevation myocardial infarction
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Culprit vessel only versus "one-week" staged percutaneous coronary intervention for multivessel disease in patients presenting with ST-segment elevation myocardial infarction 被引量:10
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作者 Li-Xiang MA Zhen-Hua LU Le WANG Xin DU Chang-Sheng MA 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2015年第3期226-231,共6页
Objective To explore the impact of a "one-week" staged muhivessel percutaneous coronary intervention (PCI) versus culprit-only PCI on deaths and major adverse cardiac events (MACE). Methods We retrospectively an... Objective To explore the impact of a "one-week" staged muhivessel percutaneous coronary intervention (PCI) versus culprit-only PCI on deaths and major adverse cardiac events (MACE). Methods We retrospectively analyzed 447 patients with multivessel disease who experienced a ST-segment elevation myocardial infarction (STEMI) within 12 h before undergoing PCI between July 26, 2008 and Septem- ber 25, 201 l. After completion of PCI in the infarct artery, 201 patients still in the hospital agreed to undergo PCI in non-infarct arteries with more than 70% stenosis for a "one-week" staged multivessel PCI. A total of 246 patients only received intervention for the culprit vessel. Follow-up ended on September 9, 2014. This study examined the differences in deaths from any cause (i.e., cardiac and noncardiac) and MACE between the two treatment groups. Results Compared to a culprit-only PCI treatment approach, the "one-week" staged multivessel PCI was strongly associated with greater benefits for 55-month all cause death [41 (16.7%) vs. 13 (6.5%), P = 0.004] and MACE [82 (33.3%) vs. 40 (19.9%), P = 0.002] rates. In addition, there were significant differences in the number of myocardial infarctions [43 (17.5%) vs. 20 (10.0%), P = 0.023], coronary-artery bypass grafting [CABG; 20 (8.1%) vs. 6 (3.0%), P = 0.021], and PCI [31 (12.6%) vs. 12 (6.0%), P - 0.018]. Patients undergoing culprit-only PCI compared to "one-week" PCI had the same number of stent thrombosis events [7 (2.8%) vs. 3 (1.5%), P - 0.522]. Conclusions Compared to a culprit-only PCI treatment approach, "one-week" staged multi-vessel PCI was a safe and effective selection for STEMI and multi-vessel PCL 展开更多
关键词 ST-segment elevation myocardial infarction Percutaneous coronary intervention Multivessel revascularization
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Comparison of clinical outcomes between culprit vessel only and multivessel percutaneous coronary intervention for ST-segment elevation myocardial infarction patients with multivessel coronary diseases 被引量:1
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作者 Kwang Sun Ryu Hyun Woo Park +19 位作者 Soo Ho Park Ho Sun Shon Keun Ho Ryu Dong Gyu Lee Mohamed EA Bashir Ju Hee Lee Sang Min Kim Sang Yeub Lee Jang Whan Bae Kyung Kuk Hwang Dong Woon Kim Myeong Chan Cho Young Keun Ahn Myung Ho Jeong Chong Jin Kim Jong Seon Park Young Jo Kim Yang Soo Jang Hyo Soo Kim Ki Bae Seung 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2015年第3期208-217,共10页
Background The clinical significance of complete revascularization for ST segment elevation myocardial infarction (STEMI) pa- tients during admission is still debatable. Methods A total of 1406 STEMI patients from t... Background The clinical significance of complete revascularization for ST segment elevation myocardial infarction (STEMI) pa- tients during admission is still debatable. Methods A total of 1406 STEMI patients from the Korean Myocardial Infarction Registry with multivessel diseases without cardiogenic shock who underwent primary percutaneous coronary intervention (PPCI) were analyzed. We used propensity score matching (PSM) to control differences of baseline characteristics between culprit only intervention (CP) and multivessel percutaneous coronary interventions (MP), and between double vessel disease (DVD) and triple vessel disease (TVD). The major adverse cardiac event (MACE) was analyzed for one year after discharge. Results TVD patients showed higher incidence of MACE (14.2% vs. 8.6%, P = 0.01), any cause of revascularization (10.6% vs. 5.9%, P - 0.01), and repeated PCI (9.5% vs. 5.7%, P = 0.02), as compared to DVD patients during one year after discharge. MP reduced MACE effectively (7.3% vs. 13.8%, P = 0.03), as compared to CP for one year, but all cause of death (1.6% vs. 3.2%, P= 0.38), Ml (0.4% vs. 0.8%, P = 1.00), and any cause ofrevascularization (5.3% vs. 9.7%, P = 0.09) were comparable in the two treatment groups. Conclusions STEMI patients with TVD showed higher rate of MACE, as compared to DVD MP performed during PPCI or ad hoc during admission for STEMI patients without cardiogenic shock showed lower rate of MACE in this large scaled database. Therefore, MP could be considered as an effective treatment option for STEMI patients without cardiogenic shock. 展开更多
关键词 Culprit only intervention Multivessel intervention Multivessel coronary disease Myocardial infarction Primary percutaneous coronary intervention
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Percutaneous coronary Intervention for ostial occlusion lesion of an anomalous right coronary artery 被引量:1
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作者 Shi-Wei Yang Yu-Jie Zhou 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2009年第3期189-192,共4页
Ostial lesions present many challenges for percutaneous coronary intervention (PCI). Coronary anomaly will further increase difficulties in performing PCI for the patient. We present such a case as ostial occlusion ... Ostial lesions present many challenges for percutaneous coronary intervention (PCI). Coronary anomaly will further increase difficulties in performing PCI for the patient. We present such a case as ostial occlusion of an right coronary artery with high takeoff. A 77-year-old male was referred to our institution with a diagnosis of non-ST elevated acute myocardial infarction. Selective coronary angiography and nonselective ascending aortography could not identify the origin of the right coronary artery. Multi-slices computed tomography showed RCA ostial totally occluded. A successful PCI was performed and a perfect final result was achieved utilized with many tips and tricks, including buddy wtre technique and focused-force angloplasty(J Genatr Cardio12009, 6:189-192). 展开更多
关键词 ostial lesions high takeoff percutaneous coronary intervention buddy wire focused-force angioplasty
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