主动脉狭窄

Treatment of the coarctation is usually the surgical correction of the narrowed segment of the aorta.

主动脉缩窄的治疗通常是通过手术来校正狭窄片段。

Usually peripheral pulmonic stenosis' although other heart disorders such as Tetralogy of Fallot and coarctation of the aorta have been reported.

通常周围肺动脉狭窄，虽然其他心脏疾病，如法洛氏四联症和主动脉缩窄被报导。

Methods Eighty patients with aortic valve stenosis combined left ventricular ejection fraction less than 50% cases were diagnosed by echocardiography, mele 32, female 48, aged 38~85 years, mean age 42 years.

80例左心室收缩功能不全的主动脉瓣狭窄患者，其中男32例，女性48例，年龄38~85岁，平均年龄42岁。

Objective: To evaluate the application of echocardiography in diagnosis of congenital aortic orifice stenosis.

目的：探讨超声心动图诊断先天性主动脉出口狭窄的价值。

Methods:43 patients including 10 with mitral stenosis associated aortic regurgitation, 12 with mixed mitral valve lesions and 21 with mixed mitral valve lesions and combined with aortic regurgitation were studied.MVA determinded by (1) two -dimensional echocardiography with a cross-sectional area in the short-axis view (2DE),(2) pressure half-time using formula of 220/PHT,(3) color Doppler flow imaging with a jet cross-sectional area in the short-axis view with planimetry,(4) CDFI with a color jet width at the mitral valve orifice in the apical four-chamber view and long-axis view, assuming an elliptic mitral orifice, compared with the orifice area of excised mitral valve during mitral valve replacement.

材料与方法∶分别用二维超声(2DE)、压差减半时间、彩色多普勒二尖瓣口血流截面积和椭圆形面积法测定43例风湿性心脏病二尖瓣狭窄拟行人工瓣置换术患者的MVA，其中合并主动脉瓣反流 10例，合并二尖瓣反流 12例， 21例，并与手术标本的实测面积相比较。

Ventricular tachycardia or fibrillation or severe bradycardias or asystole may cause these symptoms in the form of a Stokes-Adams attack.

劳力性晕厥见于主动脉瓣狭窄或肥厚型心肌病，两者都限制活动时心排血量的增加。

Prof. Shelton: Well it's a very important topic and we are seeing calcific aortic stenosis of the elderly more frequently these days I believe than we used to because people are living longer to have the disease.

Shelton教授：这个话题非常重要，我们现在看到比从前更多的老年患者出现主动脉钙化狭窄，我想这是因为人的寿命比以前更长了。

Atherosclerotic/calcific aortic stenosis, on the other hand, develops at later in life and is a manifestation of diffuse atherosclerosis that commonly affects elderly individuals.

另一方面，动脉粥样硬化/钙化性主动脉瓣狭窄出现的时期更晚，表现为广泛的动脉粥样硬化，常好发于老年人。

Tetralogy of Fallot is a congenital heart defect in dogs that includes four separate defects: pulmonic stenosis, a ventricular septal defect, right ventricular hypertrophy, and an overriding aorta.

法乐氏四联症是一种先天性心脏病，它包括四个部位的异常：肺动脉瓣狭窄、心室间隔缺损、右心室流出道狭窄和主动脉栓塞。

Clinical experience with the percutaneous heart valve for treatment of degenerative aortic stenosis.

经皮介入治疗主动脉瓣退行性变所致主动脉瓣狭窄的临床经验 2。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。