主动脉扩张

Methods Eight bigeminal pregnant ewes in latter 2nd-trimester and 3rd-trimester were taken into the research of fetal cardiac intervention. Under continuous ultrasound guidance, advanced an cannula and stylet needle through the maternal abdomen, uterine wall, and fetal lamb chest wall and into the fetal LV, then imitate human balloon aortic valvuloplasty at valve ring level.

以8只中后期双胎妊娠黑山羊为研究对象，在超声引导下经皮/子宫穿刺胎羊左心室，并在主动脉瓣水平模拟人类主动脉瓣球囊扩张术，从而建立胎儿宫内心脏介入手术动物模型，从动物准备、术中胎羊体位、穿刺部位选择、介入技术要领、超声使用、胎羊保温、胎盘脐带保护等方面进行探讨总结。

In the near future, the whole nation is also will be so, which is similar to the developed countries. It is predictable that the incidence of arterous dilative diseases as AAA and AD will increase yearly. All the series of problems are not sensitive to medication, while the only management is surgery.

另外，我国一些大城市实际上已经进入了老龄社会，在未来的几十年内，整个国家也会进入与西方发达国家年龄构成相似的老龄社会，可以预测腹主动脉瘤和主动脉夹层等动脉扩张病的发病率将会逐年提高。

It is predictable that the incidence of arterous dilative diseases as AAA and AD will increase yearly. All the series of problems are not sensitive to medication, while the only management is surgery.

另外，我国一些大城市实际上已经进入了老龄社会，在未来的几十年内，整个国家也会进入与西方发达国家年龄构成相似的老龄社会，可以预测腹主动脉瘤和主动脉夹层等动脉扩张病的发病率将会逐年提高。

Results: B-type ultra-sonic graph showed abnormal blood vessels in hepatic hila. CT or DSA demonstrated intra- and extra-hepatic abnormal ectatic arteries, intrahepatic telangiectasia, cirrhosis and hepatic enlargement.

强化CT及血管成像显示3例患者腹主动脉周围、肝门区及肝内迂曲扩张的动脉血管、肝内弥漫扩张的毛细血管网和肝硬化，2例年轻患者肝脏体积增大。

Prenatal balloon aortic valvuloplasty may improve left heart growth and function, possibly preventing evolution to hypoplastic left heart syndrome.

出生前行主动脉瓣球囊扩张术可能会改善左心生长和功能，可能会阻止进展为左心发育不全综合征。

Results The lesion located at the basal segments of left lower lobe in 9 cases (90%), furthermore, 7(70%) at the posterior basal segments; The remainder 1 case (10%) was found at the posterior basal segment of right lower lobe; The lesion present as multiloculated cyst containing fluid and/or air in 7 cases(70%) without contrast enhancement of cyst wall, 3 cases (30%) presented as irregular mass with moderate enhancement, in which bronchiectasis with mucous impaction, calcification or cyst containing fluid may be seen; MRP, MIP and VR reconstructions showed anomalous branches arising from descending aorta in all 10 patients(100%) with draining into left atrium via pulmonary vein,which was consistent with surgery; Ipsilateral hilar lymphadenopathy was demonstrated in 7 cases (70%).

结果 9例（90％）病灶位于左下叶基底段，其中7例（70％）位于左下叶后基底段，1例（10％）位于右下叶后基底段；7例（70％）病灶表现为含液/气的薄壁多房囊腔，增强后囊壁无明显强化，3例（30％）表现为不规则团块，增强后有中等强化，其内有粘液嵌塞的扩张支气管，也可有钙化或液性区；MPR、MIP及VR等三维重建显示10例（100％）均为降主动脉发出异常分支供血，并通过肺静脉回流入左房，血管显示情况与手术相符；7例（70％）患侧肺门淋巴结有增大。

We previously reported that unclamping of an abdominal aorticcross-clamp causes initial dilation of pial arteries followedby sustained constriction.

以前我们曾报导了腹主动脉阻断钳松夹可引起软脑膜内动脉先扩张随后持续收缩。

METHODS: Differences of the vasodilating action of Ipt in big artery and small artery were studied using isolated rat tai l artery helical strips and aortic rings, and the effects of Ipt on potassium cu rrents in smooth muscle cells derived from rat tail artery were observed by usin g patch clamp technique.

采用大鼠尾动脉螺旋状血管条和主动脉离体血管环两种组织，对比观察盐酸埃他卡林对大、小动脉扩张作用的药理学特性，并且利用膜片钳技术观察盐酸埃他卡林对大鼠尾动脉平滑肌细胞钾电流的影响。

The pathological specimens were evaluated by computerized image analysis system. The areas of ventral aortic lumina were measured by MRI after angioplasty.

术后1、2、4周行MRI检查，观察左肾动脉开口处上段被扩张腹主动脉的管腔面积变化。

Pressure release: The pressure on the chest is released, allowing the pulmonary vessels and the aorta to re-expand causing a further initial slight fall in pressure (20 to 23 seconds) due to decreased left ventricular return and increased aortic volume, respectively.

压力舒缓：胸部压力舒缓，促使肺血管与主动脉重新扩张，左心房的血液量增加且大动脉血量增加而造成一开始血压降低(20-23秒)。

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。