共查询到20条相似文献，搜索用时 62 毫秒
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目的:探讨国人血浆脂蛋白相关磷脂酶A2(Lp-PLA2)活性与急性冠脉综合征(ACS)不同临床类型以及冠脉病变严重程度之间的关系.方法:对80例疑诊为ACS的患者行冠状动脉造影,按造影结果分为冠心组和正常对照组,再以冠心病临床类型、冠脉病变支数、Gensini积分将冠心病组患者分成不同的亚组,用统计学方法比较各组之间Lp-PLA2水平的不同.结果:不稳定型心绞痛组和心肌梗死组Lp-PLA2活性均显著高于正常对照组(P<0.05).Lp-PLA2活性随着冠脉病变支数和Gensini积分的增加而升高.结论:Lp-PLA2活性能反应冠脉病变的稳定性,与冠脉病变严重程度有关. 相似文献
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目的探讨彩色多普勒超声心动图(CDE)诊断冠心病的价值。方法选择年龄在55～85岁之间的138例初诊为冠心病的病人,进行CDE检查及冠状动脉造影(CAG)检查,并进行对照,以CAG诊断结果为标准来评价CDE对冠心病的诊断价值。结果138例临床初诊为冠心病的患者,经CAG检查明确了105例冠心病的诊断,其中74例经CDE检出室壁运动异常,且主要出现在室间隔和左室前壁,而左室下壁及后壁出现较少;CDE诊断冠心病的敏感性和特异性分别为64.76%、81.82%。结论CDE对诊断冠心病有较高的特异性和敏感性,尤其是当病变累及左前降支及其分支时,但对左旋支及右冠状动脉病变的诊断尚存在一定的局限性。 相似文献
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《赤峰学院学报(自然科学版)》2016,(5)
目的:探讨血浆脂蛋白(a)[LP(a)]水平与冠状动脉粥样硬化性心脏病及冠状动脉病变程度之间的关系.方法:入选2011年1月~2014年12月在我心内科住院并行冠状动脉造影检查的患者203例,根据冠状动脉造影结果分为非冠心病组(n=49)和冠心病组(n=154),其中冠心病组分为冠状动脉单支病变组(n=40),双支病变组(n=46),三支病变组(n=68).测定患者空腹血浆LP(a)水平并进行比较,分析LP(a)水平与冠心病及冠脉病变程度的关系.结果:冠心病组患者血浆Lp(a)水平较非冠心病组明显升高,差异有统计学意义(P0.05),且冠心病组患者的冠脉病变支数越多,差异越明显.Gensini评分与血浆LP(a)水平呈正相关,有统计学意义(P0.01).结论:血浆Lp(a)水平与冠心病的发生及冠状动脉病变的严重程度相关,在临床上对血浆LP(a)水平高的患者应高度重视,及早给予强化治疗. 相似文献
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目的:探讨以晕厥为首发症状的老年性急性心肌梗塞的临床改变与冠状动脉病变的相关关系。方法根据16例老年性急性凡肌梗塞的心电图首要改变,将其分为窦缓、窦停和房室传导阻滞(AVB)三组,以冠状动脉造影的结果为依据,对其临床表现、心肌酶学检测和心电图的定位诊断进行对比研究。结果结果显示三组病人的临床表现相似,均有不同程度高血压(93.7％)、冠心病(87.5％)、糖尿病(81.3％)、高血脂(62.5％)和长期吸烟史(68.7％),以晕厥为首发症状(100％),脉缓(93.8％)伴低血压(56.3％)心电图定位诊断显示窦缓织对应下壁,窦停组对应下壁和侧壁,房室传导组对应下壁、正后壁、右室和侧壁。心肌酶学检测以肌酸磷酸肌酶(CK—MB)的峰值为标准,CK-MB的高低与梗塞面积大小和AVB存在与否有正相关性。冠状动脉造影显示AVB组的冠状动脉病变的支数和狭窄程度较窦缓组和窦停组严重(88.8％对57.1％,P<0.05),尤其是优势型冠状动脉狭窄程度最突出。结论 以晕厥为首发症状的老年性心肌梗塞的临床症状不明显,心电图常以窦缓、窦停或AVB为其突出改变,对应冠状动脉造影显示三组病变与冠脉病变的支数和狭窄程度有关,尤其是优势型的冠状动脉严重狭窄是AVB发生的重要的独立因素。 相似文献
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甄彤 《荆门职业技术学院学报》2010,25(5):27-29
目的：探讨动态心电图ST-T变化在冠心病诊断中的价值,为提高该病的诊断率提供参考。方法：对2008年1月至2009年8月在我院心血管内一科进行诊治的可疑冠心病患者共计128例,首先进行动态心电图检测,然后对其进行冠状动脉造影,对检测结果进行比较分析。结果：应用动态心电图共检出ST段呈水平型或下斜型压低患者52例,阳性率为40.63%。而冠状动脉造影结果显示,共有49例患者为冠心病,单支病变24例,双支病变18例,三支病变7例。动态心电图灵敏度为89.80%（44/49）;特异度为89.87%（71/79）,准确指数为79.67%。结论：动态心电图在检测可疑冠心病患者心肌缺血方面具有很好的灵敏度、特异度和准确度,可以作为诊断冠心病患者的可靠指标。 相似文献
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目的探讨冠心病患者的血脂比值和单项血脂与冠脉狭窄严重程度的相关性。方法对已行冠状动脉造影的阳性病人(最少有一支血管狭窄≥50%)的各项血脂及其比值进行检测,并与其冠脉狭窄程度进行相关分析。结果①在单项血脂中,TG、CHO、LDL、LP(a)均与冠脉狭窄程度呈正相关,而HDL和apoA与冠脉狭窄程度呈负相关。②在血脂比值中,CHO/HDL、apoB/apoA TG/apoA、CHO/apoA LDL/apoA值均随冠脉狭窄程度加重而增加,且差异有显著性意义。③血脂比值比单项血脂反映CAD的敏感度更高。结论:对于CAD患者,血脂比值反映冠脉狭窄的严重程度较单项血脂更敏感更早期。 相似文献
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低分子肝素是从标准肝素中分离出来的分子量较小的片段 ,具有抗凝作用低、抗血栓作用强及出血发生率低的特点 ,因此在治疗不稳定型心绞痛、急性脑梗死等疾病中越来越受到重视。1 治疗不稳定型心绞痛不稳定型心绞痛是介于稳定型心绞痛和急性心肌梗死之间的中间状态 ,主要病理变化是冠状动脉内有动脉粥样硬化斑块和冠状动脉狭窄。患者有典型的心绞痛症状 ,经一般抗心肌缺血药物治疗效果不明显。临床资料显示 ,在常规抗心绞痛药物治疗基础上 ,加用低分子肝素皮下注射治疗不稳定型心绞痛 ,可减少患者心绞痛发作次数和硝酸甘油用量 ,缩短心绞痛… 相似文献
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蔡金玲 《河北北方学院学报(医学版)》2009,26(2)
冠状动脉造影术是目前诊断冠心病最准确的方法之一,它是采用介入的方法,应用在X线下显影的造影剂,对冠状动脉进行检查,主要用于了解冠状动脉有无狭窄及其狭窄程序,是诊断冠心病的可靠手段.现将我科2006-11-2007-11月的40例冠状动脉造影术后患者常规护理及体会报告如下. 相似文献
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目的:评估人乳头瘤病毒(HPV)16/18分型在细胞学正常或轻度异常的低度宫颈病变中的预测价值,为临床分流决策提供依据。创新点:目前对于细胞学正常或轻度异常的低度宫颈病变患者缺乏有效分流策略。本研究首次探索HPV16/18分型对这部分患者疾病转归的预测价值。方法:新招募细胞学正常或轻度异常的低度宫颈病变患者,以6个月为间隔随访2年,采用Cox回归模型对入组HPV16/18分型结果与疾病转归进行关联分析。结论:对于HPV16/18阳性,细胞学轻度异常,且30岁及以上的低度宫颈病变患者,可以考虑比保守随访更积极的诊疗方案。 相似文献
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目的:了解急性脑出血后全身炎症反应综合征(SIRS)的发生率及与其发生可能有关的因素,探讨SIRS在判断急性脑出血的病情和预后方面的临床价值.方法:回顾性分析163例急性脑出血患者的临床资料,且以目前外科、危重病领域公认的SIRS、多器官功能障碍综合征(MODS)的诊断标准为依据,了解急性脑出血后SIRS和MODS的发生情况及相关问题.结果:急性脑出血后SIRS的发生率为52%;出血量≥30ml、出血破入脑室、随机血糖≥11.1mmol/L的患者,SIRS的发生率分别较出血量＜30ml、出血未破入脑室、随机血糖＜11.1mmol/L的患者显著增高.脑出血后发生SIRS的患者,其MODS发生率、死亡率均明显高于未发生SIRS的患者.结论:急性脑出血后SIRS的发生率高,SIRS的发生提示病情危重,预后较差. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献
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Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献