升主动脉

增强多层螺旋CT成像显示升主动脉位于肺动脉前壁左侧。

Enhanced multislice CT revealed the ascending aorta coursing left of the anterior pulmonary trunk .

在CT同一层面上，两名放射科医师独立测量主肺动脉和升主动脉的直径。

Independent observers made measurements of the diameter of the main pulmonary artery and the ascending aorta on the same CT slice .

升主动脉开放后心脏自动复跳率M组为80%，C组为55%。

After aortic declamping , the spontaneous return rate is 80 % in group M and 55 % in group C.

结果手术阻断升主动脉时间为46.8～120.3（72.4±18.5）min，体外循环时间为71～184.7（120.2±27.6）min。

RESULTS The circulation clamp time was 46.8 ~ 120.3 ( 72.4 ± 18.5 ) min.

经独立样本t检验，两组升主动脉根部和降主动脉的平均CT值差异无统计学意义（P>0.05）；

By t test , the mean CT value of ascending aorta and descending aorta of the two groups had no statistical difference ( P > 0.05 );

平均体外循环时间（135±11）min，阻断升主动脉（78±10）min。

Mean cardiopulmonary bypass time was ( 135 ± 11 ) minutes and aortic clamping time was ( 78 ± 10 ) minutes .

用彩色多普勒计测胎儿升主动脉平均血流速度（Vm）。

The mean velocity ( Vm ) of the fetal ascending aorta were measured by color Doppler .

升主动脉弹性用Ep和β表示。

Ascending aortic distensibility was shown by aortic pressure-strain elastic modulus ( Ep ) and stiffness index beta (β) .

结果升主动脉瘤中MMP-3、MMP-9表达强阳性。

Results The expression of MMP-3 , MMP-9 were strong in the ascending aortic aneurysm .

实验结果：EDCPR较SECPR显著提高升主动脉收缩压（P＜0.05），舒张压（P＜0.01）。

Results : EDCPRproduced the systolic and diastolic pressures of ascending aorta higher than SECPR ( P < 0 . 05 ) .

DeBakeyⅢ型术后复发同期主动脉弓和升主动脉根部替换

Replacement of aortic root and total arch after DeBakey ⅲ operation

B组TNFα-、IL-6和IL-8水平在开放升主动脉后1h、6h均显著高于A组（P<0.05）。

IL-6 , IL-8 and TNF - α levels in group B at 1h and 6h after the aortic declamping were significantly higher than those in group A.

主动脉瓣狭窄（AS）占34%，主动脉瓣关闭不全（AR）占68%，升主动脉扩张占30%；

The prevalence of aortic valve stenosis , aortic valve regurgitation , and dilatation of the ascending aorta were 34 % , 68 % , and 30 % respectively .

升主动脉内径45～60mm，平均（522±45）mm。

The mean diameter of ascend aorta was ( 52 2 ± 4 5 ) mm ( 45 ~ 60 mm ) .

经肺动脉或升主动脉注入上述剂量的5-HT，能诱发类似的心血管效应，而向降主动脉和颈总动脉注射则无效，提示反射的感受器装置可能为主动脉区的各组化学感受器。

Injection of 5-HT into pulmonary artery or ascending aorta might evoke similar effect while injection into descending aorta or carotid artery failed to do so .

腔内修复联合旁路手术治疗DeBakeyⅠ型升主动脉夹层

Endovascular repairing combined with prosthesis by-pass in the treatment of DeBakey type ⅰ ascending aortic dissection

目的研究大鼠小脑皮质内NPY免疫阳性神经元的形态与分布。方法SD大鼠10只，雌雄不限，升主动脉灌注固定，开颅取小脑，SP免疫组织化学染色。

Objective To investigate the morphology and distribution of neuropeptide Y ( NPY ) immunoreactive neurons in cerebellar cortex of the rat . Methods SP immunohistochemistry staining was used .

Bentall手术治疗升主动脉瘤14例报告

Surgical treatment of ascending aortic aneurysm by Bentall 's procedure : report of 14 cases

结论：升主动脉缩窄6周，豚鼠CHF及致心肌肥厚的动物模型基本形成。

Conclusion : The animal model of guinea pig chronic heart failure and compensatory hypertrophy may be formed by constricting the ascending aortas of guinea pigs for 6 weeks .

方法：采用升主动脉缩窄法制备左心室压力超负荷心肌肥大（LVH）和充血性心衰（CHF）大鼠病理模型；

METHODS : Left ventricle pressure overload hypertrophy ( LVH ) and congestive heart failure ( CHF ) models were created in rats by ascending aortic banding .

材料和方法：比较40例糖尿病人、40例高血压病人及40例正常对照组的升主动脉和腹主动脉扩张性（DIS）、僵硬度指数（β），并与脉压差等作相关分析。

Materials and Methods : We compared diameters , distensibility , stiffness index (β) of aortic arch and abdominal aorta of normal people with that of diabetic and hypertension .

结论：对幼年Wistar大鼠升主动脉缩窄，可制作理想后负荷心衰模型，该模型对研究心衰机理有重要意义。

There was very high occurence of aneurysm in this model . Conclusions : By banding Ascending aorta of young Wistar rat , A stable reproducible ideal afterload heart failure model was induced .

结论：CPB方法采用不阻断升主动脉，不灌注停跳液，低温，室颤，结合多头灌注管的桥灌注的CABG手术可减少心肌缺血再灌注损伤现象。

Conclusion : The method to perform CABG under CPB without blocking ascending aorta and perfusion of cardiaplegia combined with bridge perfusion could reduce the myocardium injury caused by re-perfusion .

结论大鼠升主动脉缩窄术产生升主动脉瘤的机率较高，并呈现MMP-2、MMP-3表达强阳性。

Conclusion The occurrence of ascending aortic induced by banding ascending aorta of the young Wistar rat is high , and the expression of MMP-2 and MMP-3 is strong .

中膜中间两层间单位分离力在降主动脉近段和远段均显著低于升主动脉（P0.05，P0.01）；

For the same interspace on different segments of the aorta , ADF ( middle ) on the ascending aorta was much higher than that on the upper ( P0.05 ) and lower descending thoracic aorta ( P0.01 );

报告Bentall手术治疗升主动脉瘤伴主动脉瓣关闭不全4例。

This paper reports surgical treatment of 4 cases of aneurysm of ascending aorta with aortic insufficiency by Bentall operation .

方法：总结42例主动脉弓动脉瘤患者手术后发生肺部并发症的情况，分析其原因及治疗效果，并与42例升主动脉及主动脉瓣置换术（Bentall术）患者进行比较。

Meth - ods : 42 patients with aortic arch aneurysm operation , compared with 42 patients with Bentall operation .

平均随访18个月，无复发性主动脉扩张和夹层形成，升主动脉平均直径由术前的（46.7±3.1）mm（40～53mm）降为（33.7±2.5）mm（30～43mm）。

During follow-up of 18 months , no recurrent ascending aortic dilatation and dissection were observed , and the average aortic diameter was reduced to ( 33.7 ± 2.5 ) mm .

26例施行Bentall手术（带瓣人造血管升主动脉置换术和冠状动脉移植术）。

26 of all patients underwent aortic composite graft with valve replacement and reimplantation of coronary arteries ( Bentall operation ) .

2例合并畸形，其中动脉导管未闭1例（PDA），右肺动脉起源升主动脉并二尖瓣关闭不全1例。

Two of these were associated with other anomalies : one with patent ductus arteriosus ( PDA ), the other with anomalous origin of the right pulmonary artery from the ascending aorta and mitral valve insufficiency .