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右室异常肌束X线平片诊断的评价
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作者 杨东益 罗建光 +1 位作者 刘顾岗 杨树仁 《临床放射学杂志》 CSCD 北大核心 1998年第5期273-275,共3页
目的:评价X线平片对右室异常肌束的诊断价值及限度。材料与方法:分析经手术证实的右室异常肌束73例的X线平片表现,根据血液动力学改变,将此病分为3型:无分流型;左向右分流型;右向左分流型。结果:在X线平片上,右室异常肌... 目的:评价X线平片对右室异常肌束的诊断价值及限度。材料与方法:分析经手术证实的右室异常肌束73例的X线平片表现,根据血液动力学改变,将此病分为3型:无分流型;左向右分流型;右向左分流型。结果:在X线平片上,右室异常肌束可表现下列征象:(1)右室增大与心腰凸出不相称(35/73例);(2)左室增大与肺血增多不相称(15/73例);(3)右室流出道处呈局限性凹陷(23/73例)。结论:X线平片检查对本病的诊断具有较大的限度,但若上述3个征象中有2个或3个征象同时存在时,结合临床表现,部分梗阻型病例可提示诊断。 展开更多
关键词 先天性心脏病 右室异常 X线诊断
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右室流出道异常肌束误诊为房间隔缺损1例
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作者 赵文淑 顼志敏 《中国临床医生杂志》 2003年第2期51-52,共2页
关键词 诊断 右室流出道异常 误诊 房间隔缺损
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小儿右室异常肌束12例临床分析
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作者 黄星原 张双船 +2 位作者 吴耀贵 邢富强 夏光 《武汉医学杂志》 1996年第2期79-80,共2页
右室异常肌束又称双腔右心室,临床较少见,大多数病例合并其他畸形,因而容易误诊。现将我院1989年1月~1995年12月经手术证实的12例患儿报道如下。
关键词 右室异常 心脏病 诊断 儿童
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中等强度运动对大鼠心室肌蛋白质组差异表达的影响 被引量:8
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作者 史绍蓉 袁爱国 +3 位作者 王娟 刘建荣 刘田 李颂 《体育科学》 CSSCI 北大核心 2008年第12期56-61,共6页
目的:探讨4周中等强度运动后大鼠左、右室肌蛋白质组的差异性表达,初步筛选出心脏在运动反应与适应过程中的目标蛋白质;方法:将18只雄性SD大鼠随机分为实验组和平行对照组(n=9)。实验组经4周中等负荷强度(70%V.O2max~80%V.O2max)跑台... 目的:探讨4周中等强度运动后大鼠左、右室肌蛋白质组的差异性表达,初步筛选出心脏在运动反应与适应过程中的目标蛋白质;方法:将18只雄性SD大鼠随机分为实验组和平行对照组(n=9)。实验组经4周中等负荷强度(70%V.O2max~80%V.O2max)跑台训练后,与对照组一起,提取左、右室肌组织的全蛋白样品。进行2-DE蛋白样品分离,采用PD-Quest软件进行图像分析和数据采集。选择运动后差异表达量≥10倍的备选目标蛋白点,进行胶內原位酶解与一、二级质谱鉴定;结果:运动后左、右心室差异表达量≥10倍的蛋白质点共24个,取其中9个点,经一、二级质谱鉴定出ATP合酶偶合因子6、葡萄糖调节蛋白78、烯酰辅酶A水合酶、ATP合酶α亚基、丙酮酸脱氢酶E1α1、硒联蛋白1、类似信号增殖关联蛋白1和丝氨酸精氨酸前体-mRNA拼接因子SR-A1以及一个分子量为116kDa的未知蛋白;结论:1)实验大鼠在心脏重塑过程中,左、右室肌蛋白质组发生了显著的变化。2)成功筛选出在运动医学领域中尚未涉足的8种目标蛋白,其表达量发生的适应性变化表明,在中等强度运动下,会引起心肌能量代谢水平的提高、心肌应激反应与适应能力的增强、血压调节能力的改善等一系列有益变化。 展开更多
关键词 运动心脏 左室 右室肌 中等强度运动 蛋白质组 差异表达
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应用小儿超声心动学新的切面诊断右室异常肌束
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作者 吴明君 张毅 +1 位作者 王洪梅 刘姿薇 《中国超声诊断杂志》 2006年第8期581-583,共3页
目的应用小儿超声心动学新的切面技术诊断右室异常肌束,避免有创方法检查,提高外科手术质量。方法应用常规切面与新切面技术分别对56例右室异常肌束的诊断进行对比、分析。结果常规切面检出9例真性右室异常肌束,0例潜在右室异常肌束,新... 目的应用小儿超声心动学新的切面技术诊断右室异常肌束,避免有创方法检查,提高外科手术质量。方法应用常规切面与新切面技术分别对56例右室异常肌束的诊断进行对比、分析。结果常规切面检出9例真性右室异常肌束,0例潜在右室异常肌束,新切面技术检出15例真性右室异常肌束,41例潜在右室异常肌束。结论新切面技术应用能够提高右室异常肌束的检出率,指导外科治疗。 展开更多
关键词 超声心动图学 新切面技术 右室异常
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V_(3R)~V_(5R)导联心电图对诊断右室心梗的价值分析 被引量:1
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作者 孙桂萍 马泽强 《中国厂矿医学》 2000年第5期337-338,共2页
关键词 V3R^V5R导联 心电图 诊断 右室肌梗塞
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二维多普勒超声心动图对右室双腔心的判断
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作者 赵秀凤 吴信 靳三友 《中国民康医学》 1994年第4期164-165,171,共3页
对8例右室双腔心(DCRV)手术患者的术前2-DE诊断和术后结果对照,探讨超声心动图对DCRV的诊断价值。术前超声显示异常肥大肌束形成的狭窄孔径为0.5~1.2cm,CDFI于心尖四腔心、主动脉根部短轴,剑下二尖瓣水... 对8例右室双腔心(DCRV)手术患者的术前2-DE诊断和术后结果对照,探讨超声心动图对DCRV的诊断价值。术前超声显示异常肥大肌束形成的狭窄孔径为0.5~1.2cm,CDFI于心尖四腔心、主动脉根部短轴,剑下二尖瓣水平左室短轴切高检测出收缩期通过狭窄孔的五色血流来,2-DE诊断DCRV与手术符合率达100%。 展开更多
关键词 右室双腔心 右室异常 二维多普勒超声心动图
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3例右室双腔心诊断及手术治疗
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作者 张旭光 雷定华 +1 位作者 杨应南 李亚雄 《云南医药》 CAS 1999年第S1期131-132,共2页
关键词 右室双腔心 手术治疗 室间隔缺损 先天性心脏病 右室流出道狭窄 右室异常 心胸外科 主动脉瓣 昆明市 右心室增大
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先天性双腔右心室(DCRV)彩色多普勒超声的诊断价值
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作者 张尔娟 张春鹏 +1 位作者 王勇 孙平 《中国实验诊断学》 2008年第3期412-413,共2页
关键词 彩色多普勒超声心动图 先天性双腔右心室 诊断价值 先天性心脏畸形 右室异常 肺动脉瓣狭窄 先天性心血管畸形 漏斗部狭窄
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双腔右心室的外科治疗——附32例报告
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作者 胡健才 张殿堂 +3 位作者 张代文 殷桂林 张荣华 谭焱 《华南国防医学杂志》 CAS 1997年第4期264-265,共2页
10年来,外科治疗双腔右心室(DCRV)32例。单纯DCRV2例,合并畸形以室缺最多见30例,房缺3例,肺窄和右位心各一例。右心造影和右心导管对诊断有决定意义。笔者强调经右室切口:术中仔细瓣认DCRV病理解剖以免漏诊误治。手术死亡1例并对死亡原... 10年来,外科治疗双腔右心室(DCRV)32例。单纯DCRV2例,合并畸形以室缺最多见30例,房缺3例,肺窄和右位心各一例。右心造影和右心导管对诊断有决定意义。笔者强调经右室切口:术中仔细瓣认DCRV病理解剖以免漏诊误治。手术死亡1例并对死亡原因和术中险些失误进行初步分析。 展开更多
关键词 双腔右心室 右室异常 外科治疗
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Pathological study on right atrium myocardium in rheumatic heart disease patients with atrial fibrillation
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作者 段翔鹰 张宝仁 李莉 《Journal of Medical Colleges of PLA(China)》 CAS 2002年第4期285-289,共5页
Objective: To study the pathological basis of right atrial fibrillation in rheumatic heart disease (RHD) patients with atrial fibrillation (AF). Methods: Twenty-nine patients with mitral valve replacement of RHD were ... Objective: To study the pathological basis of right atrial fibrillation in rheumatic heart disease (RHD) patients with atrial fibrillation (AF). Methods: Twenty-nine patients with mitral valve replacement of RHD were divided into AF group (n=13) and sinus rhythm group (SN group) (n=16). There was no significant statistical difference in clinical factors between the 2 groups. During the operation of valve replace-ment, the samples of right atrial appendages were taken and the qualitative and quantitative study were made by light microscopy and electron microscopy. Results: (1) Light microscope: The interstitial fibrosis and the arrangement of myocardium was more disordered in AF group than that in SN group. However, no statistic difference was found in interstitial fibrosis and cellar hypertrophy degree between the 2 groups. (2) Electron microscope: Mitochondrial crosta broke and dissolved obviously in AF group. The mitochondrial volume in AF group was smaller than that in SN group. Volume density, average area and average perimeter in AF group were less than that in SN group ; specific surface in AF group was bigger than that in SN group. There was significant difference of above factors between the 2 groups; but there was no significant difference of surface density and numerical density on area in the 2 groups. Volume density of myofibril in AF group and SN group were less than that in SN group. (3)Split of Intercalated disc(ID) gap was found in AF group, and there was marrowing and floccular substance in ID gap. Conclusion : There were significant differences in the pathological changes of right atrial myocardium between AF and SN with RHD, these changes may be the im-portant pathological basis for RA fibrillation of AF patients with RHD. 展开更多
关键词 HEART rheumatic heart disease atrial fibrillation PATHOLOGY ULTRASTRUCTURE
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Clinical and familial study of arrhythmogenic right ventricular cardiomyopathy
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作者 单其俊 曹克将 +6 位作者 黄元铸 廖铭扬 陈明龙 李闻奇 邹建刚 朱必顺 马文珠 《Chinese Medical Journal》 SCIE CAS CSCD 2001年第4期33-37,104-105,共7页
Objective To explore the characteristics of arrhythmogenic right ventricular cardiomyopathy (ARVC) Methods Seven patients with arrhythmogenic right ventricular cardiomyopathy and 34 members of three families were ... Objective To explore the characteristics of arrhythmogenic right ventricular cardiomyopathy (ARVC) Methods Seven patients with arrhythmogenic right ventricular cardiomyopathy and 34 members of three families were studied All patients and family members underwent history collection, clinical examination, electrocardiogram (ECG), two dimensional echocardiography (2 DE) and a signal averaging electrocardiogram Programmed ventricular stimulation was performed in five patients Results All patients and family members had normal morphologic characteristics and normal function of the left ventricular by 2 DE Fourteen persons had abnormal findings indicating ARVC Five had enlargement of the right ventricular with diffused hypocontractility, eight had thin and systolic bulging in the focal anterior wall with hypokinesia and one had bulging of the inferior wall Twenty five persons (seven patients and 18 family members) had abnormal findings in ECG Positive ventricular late potential was recorded in 13 persons (six patients) Two to three monomorphic ventricular tachycardia (VT) with left bundle branch block (LBBB) configurations were induced in five patients Ventricular fibrillation was induced in two patients during the electrophysiologic study (EPS) Five patients had very high pacing threshold and/or ineffective pacing in one or many regions of the right ventricle Two members of one family died suddenly One member was a dwarf with ARVC Spontaneous VT with a left bundle branch block (LBBB) configuration was recorded in five patients, polymorphic VT with extremely short coupling interval in one, and premature ventricular complexes with LBBB configuration in 12 (six patients) Conclusion Our familial study strongly suggests that ARVC may be a hereditary disease and it is helpful in the diagnosis and detection of ARVC The most common manifestations were abnormal structure and function of the right ventricle and abnormal ECG of repolarization and ventricular arrhythmia which originates from the right ventricle 展开更多
关键词 arrhythmogenic right ventricular cardiomyopathy · ventricular arrhythmia · familial study
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L-type calcium current in right ventricular outflow tract myocytes of rabbit heart 被引量:3
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作者 LIANG ShengHui LIN ChenHui +2 位作者 LI Yuan LIU TaiFeng WANG Yan 《Science China(Life Sciences)》 SCIE CAS 2012年第1期41-46,共6页
The mechanism of idiopathic ventricular tachycardia originating from the right ventricular outflow tract (RVOT) is not clear. Many clinical reports have suggested a mechanism of triggered activity. However, there ar... The mechanism of idiopathic ventricular tachycardia originating from the right ventricular outflow tract (RVOT) is not clear. Many clinical reports have suggested a mechanism of triggered activity. However, there are few studies investigating this be- cause of the technical difficulties associated with examining this theory. The L-type calcium current (/Ca-L), an important in- ward current of the action potential (AP), plays an important role in arrhythmogenesis. The aim of this study was to explore differences in the APs of right ventricular (RV) and RVOT cardiomyocytes, and differences in electrophysiological character- istics of the ICa-L in these myocytes. Rabbit RVOT and RV myocytes were isolated and their AP and Ic,-L were investigated us- ing the patch-clamp technique. RVOT cardiomyocytes had a wider range of AP duration (APD) than RV cardiomyocytes, with some markedly prolonged APDs and markedly shortened APDs. The markedly shortened APDs in RVOT myocytes were abolished by treatment with 4-AP, an inhibitor of the transient outward potassium current, but the markedly prolonged APDs remained, with some myocytes with a long AP plateau not repolarizing to resting potential. In addition, early afterdepolariza- tion (EAD) and second plateau responses were seen in RVOT myocytes but not in RV myocytes. RVOT myocytes had a high- er current density for/Ca-L than RV myocytes (RVOT (13.16±0.87) pA pF-1, RV (8.59±1.97) pA pF-1; P〈0.05). The ICa-L and the prolonged APD were reduced, and the EAD and second plateau response disappeared, after treatment with nifedipine (10 μmol L^-1), which blocks the Ica-L. In conclusion, there was a wider range of APDs in RVOT myocytes than in RV myocytes, which is one of the basic factors involved in arrhythmogenesis. The higher current density for ICa-L is one of the factors causing prolongation of the APD in RVOT myocytes. The combination of EAD with prolonged APD may be one of the mechanisms of RVOT-VT generation. 展开更多
关键词 ARRHYTHMOGENESIS CARDIOMYOCYTES ventricular tachycardia right ventricular outflow tract L-type calcium current triggered activity early afterdepolarization patch-clamp technique
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