主动脉狭窄

Results: Among the 41 cases diagnosed as CAOS by echocardiography, bicuspid aortic valve stenosis was found in 27 cases, quadricuspid aortic valve stenosis in 3 cases, supravalvular aortic stenosis in 2 cases, and subvalvular aortic stenosis in 9 cases. Two of the 8 cases diagnosed had other kind of congenital cardiopathy complications by echocardiography were confirmed by operation research.

结果： 超声心动图诊断先天性主动脉出口狭窄共41例，双瓣27例、四瓣3例、瓣上狭窄2例、瓣下狭窄9例，8例合并其他先天性心脏病者中有2例已经手术证实。

The length of stenosis was 02~10cm and the Grade 1 stenosis was one renal artery,Grade 2 six renal arteries,and grade 3 three renal arteries.MSCTA showed 6 kidneys dwindled with average length 71cm,which was 15cm less than normal kidneys.One case was accompanied by wallthickening and cavitary stenosis of abdominal aorta.The locations and extent of stenosis in 6 cases by XRA and by MSCTA were identical.We found renal arterial stenosis only in 5 of 8 cases and 6 dwindled kidneys by DUS.

MSCTA尚可见6例肾缩小，平均长径为71cm，低于健肾15cm以上；1例伴有腹主动脉壁增厚，管腔狭窄，直径约10cm；6例行腹主动脉或选择性肾动脉造影者与MSCTA显示肾动脉狭窄部位和程度完全一致。8例行彩色多普勒超声检查者，亦可见6例肾缩小，但仅5例显示肾动脉狭窄，左侧2条，右侧3条。

Isthmal narrowing and enlargement of the ascending and descending aorta are demonstrated.

一晚期妊娠胎儿的主动脉缩窄合并充血性心力衰竭，可见环形狭窄和升主动脉和降主动脉增宽。

Most children who have had an aortic stenosis surgical repair will live healthy lives.

绝大多数经过主动脉狭窄的外科修复的儿童将会过上健康的生活。

What is aortic stenosis?

什么是主动脉狭窄？

It is important that you inform all medical personnel that your child has aortic stenosis so they may determine if antibiotics are necessary prior to the procedure.

重要的是你要告诉医务人员你的孩子患有主动脉狭窄，如此他们就能够决定在做这些治疗前是否有必要给与抗生素。

A new study shows that the minimally-invasive valve bypass is a safe, effective alternative to conventional valve replacement in high-risk elderly patients with aortic stenosis.

一个新的研究成果显示低损伤瓣膜搭桥是一个安全有效在高风险的高龄主动脉狭窄患者中替代传统的心脏瓣膜置换手术的方式。

International Circulation: The accurate assessment of the haemodynamic severity of stenosis is crucial for clinical decision making in patients with aortic stenosis.

国际循环》：准确评估主动脉狭窄血流动力学的严重性对于制订临床治疗决策至关重要的。

The causes of acrtic valve diseases in the three groups were analyzed. Results: Rheumatism was the most common reason, accounting for 59.7%(43 cases) of simple aortic stenosis, while bicuspid valves accounted for 23.6%(17 cases). The most common cause for aortic insufficiency was root dilation (38 patients, 43.2%).

结果：风湿性、二叶式主动脉瓣、主动脉根部扩张以及退行性主动脉瓣病变是主要的病因类型，其中单纯主动脉瓣狭窄以风湿性（43例，占59.7%）及二叶瓣17例(23.6%)病因为主，单纯主动脉瓣关闭不全以根部扩张（38例，占43.2%）为主，主动脉瓣狭窄合并关闭不全则以风湿性（70例，占88.5%）为主。

The characteristics and changes of etiology were analyzed. All cases with aortic diseases were divided into single aortic stenosis, single aortic insufficiency, and combined aortic stenosis plus insufficiency group.

分别以主动脉瓣狭窄、主动脉瓣关闭不全、主动脉瓣狭窄合并关闭不全3组分析，具体病因包括风湿性、二叶式主动脉、退行性主动脉瓣、主动脉根部扩张、感染性心内膜炎、少见及未确定等6类病因。

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。