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经房间隔途径消融左侧房室旁路合并腹主动脉闭锁一例
患者女性,65岁,阵发性心悸3年入院.心悸旱突发突止并伴有心前区闷痛.入院体格检查无阳性体征,发作时心电图呈室上性心动过速,终止后心电图Ⅱ、Ⅲ、aVF导联ST段压低≥0.1 mV.X线胸片、超声心动图未见异常.外院电生理检查提示左侧隐匿性房室旁路参与折返的室上性心动过速,因消融导管难以逆行通过腹主动脉,放弃治疗.
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内科治疗腹主动脉骑跨栓一例
患者女,81岁,因反复心慌黑矇发作1年余,抽搐发作2次人院.2007年8月至2008年7月患者因反复黑矇及抽搐发作2次住外院,住院期间心房颤动(房颤)发作时心室率达160次/min,房颤转为窦性心率时出现长RR间期达6 s,考虑为"病态窦房结综合征,阵发性房颤",于8月1日到我科准备行永久性心脏起搏器安装术.
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肝总动脉与肠系膜上动脉合干、脾动脉发自腹主动脉、腹腔干缺如一例报告
胃癌根治术、胰头癌根治术、肝门部胆管癌根治术时,因需要行淋巴结清扫,腹腔干、肝总动脉、胃左动脉、脾动脉常需要骨骼化游离.为此,相关血管解剖变异亦常有报道.我院曾遇1例患者肝总动脉与肠系膜上动脉合干、脾动脉发自腹主动脉、腹腔干缺如,现报道如下.
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腹主动脉主干闭塞一例报告
腹主动脉闭塞(acute obstruction of the abdominal aorta)临床罕见,现将1例以脊髓血管病形式起病的,经磁共振血管造影(MRA)和病理诊断的病例报道如下.
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Objective. In a model of rat cardiac hypertrophy, the changes in the distribution of ET-1 receptors in two subcellular fractions, the sarcolemma and the light vesicles during myocardial hypertrophy were studied. Methods. Cardiac hypertrophy was produced by placing a constricting clip around the suprarenal abdominal aorta of rats, and ET-1 receptor was assayed with radioactive analysis method. Results. It was found that plasma and ventricular ET-1 levels increased significantly on week 2 and week 4 of pressure overload. ET-1 binding studies showed that during myocardial hypertrophy, the maximum binding capacity (Bmax) was increased by 41% (P<0.01) and 65% (P< 0.01) in sarcolemma in H-2 week and H-4 week groups, but was decreased by 24% (P< 0.01) and 21% (P< 0.01) in light vesicles. The sum of Bmax of sarcolemmal and light vesicle fractions was increased by 33% (P< 0.01) and 57% (P< 0.01) in group H-2 week and H-4 week, respectively. ? Conclusion. ET-1 receptors in rat heart were externalized from light vesicles to sarcolemma, which may contribute to the development of myocardial hypertrophy.
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常温下血管阻断肿瘤切除术(附10例报告)
本文报道了10例在常温下阻断腹主动脉,切除了用常规方法难以切除或无法切除的肿瘤的手术经验,结合14只犬的动物实验数据,提出常温下血管阻断的可行性及注意事项.
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Objective:To investigate the correlation of abdominal aorta CT value,renal artery CT value and renal cor-tex thickness with renal cortex CT value on contrast enhanced 64-slice CT images.Methods:96 patients (50 men and 46 women;16~74 years)with normal kidney function,which was confirmed by kidney function test were enrolled in this stud-y,including bilateral kidneys of 92 cases and unilateral kidney of 4 cases (total of 188 kidneys;92 left,96 right).After intra-venous (IV)injection of contrast agent the kidneys of the selected patients were scanned by MDCT.The scans were per-formed in arterial,venous and 3min delayed phases.All statistical analyses were performed by using IBM SPSS 20.0.Graphs were generated using Graph Pad Prism 5 software.Quantitative data were presented as mean ± standard deviation,while qualitative data were presented as frequency (%).P<0.05 was considered to be statistically significant.Results:The mean renal cortex thickness was (5.19±0.81)mm in all kidneys.In the arterial phase,a statistically significant positive correla-tion between renal cortex CT values and abdominal aortic CT values was showed (r= 0.584;P<0.001).A statistically sig-nificant positive correlation between renal cortex CT values and renal cortex thickness was demonstrated (r= 0.533,P<0.0001).Likewise,there was a positive correlation between renal cortex CT value and renal artery CT values (r= 0.43,P<0.001).Conclusion:It is a promising approach to assess the individual kidney function by measuring abdominal aorta CT value,renal artery CT value,renal cortex CT value and renal cortex thickness using contrast MDCT.