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Aortic Aneurysm
主动脉瘤
The aorta is the largest artery in the body. It carries oxygen-rich blood away from the left ventricle throughout the body.
主动脉是人体内最大的动脉。它将富氧血液从左心室输送到全身。
The aorta can be divided into four sections: the ascending aorta, the aortic arch, the thoracic or descending aorta, and the abdominal aorta.
主动脉可以分为四部分：升主动脉、主动脉弓、胸或降主动脉，以及腹主动脉。
The aorta comprises a thin inner layer called the intima; a thick, elastic middle layer called the media, and a thin outer layer called the adventitia. These layers allow the aorta to absorb the force of the blood as it is pumped from the heart to the rest of the body.
主动脉由内膜（薄内层）、中膜（厚的弹性中间层）和外膜（薄外层）组成。当血液从心脏泵送到身体的其他部位时，主动脉的三层膜能够缓冲血液对血管壁施加的压力。
When the aorta weakens, a balloon-like bulge called an aneurysm can develop. They can happen at any point along the aorta.
主动脉薄弱时，将形成一种气球状凸起，我们称之为动脉瘤。动脉瘤可发生于主动脉的任何部位。
Aortic aneurysms can dissect or rupture.
主动脉瘤可发生夹层或破裂。
The force of blood pumping can split the layers of the artery wall, allowing blood to leak in between the intima and media layer. This process is called a dissection. As a result, a septum forms and separates the true lumen from the newly created false lumen.
血液泵送的力量可撕裂动脉壁的各层，使血液渗入内膜和中膜之间。这一过程称为夹层。因此，分隔形成，真腔和新形成的假腔处于分离状态。
The aneurysm can also burst completely, causing bleeding inside the body. This is called a rupture and is a surgical emergency in which 85% of patients die, and 66% of these deaths occur before reaching the hospital.
主动脉瘤也可能完全破裂，导致体内出血。这称为主动脉瘤破裂，它是一种医疗紧急情况，致死率为 85%，其中 66% 的患者死亡发生在到达医院前。
The key symptom of this is a sudden severe tearing pain in your chest or upper back. Surgeons usually recommend surgery before the aneurysm ruptures.
主动脉瘤破裂的主要症状是患者胸部或上背部突发严重的撕裂样疼痛。医生通常建议在动脉瘤破裂之前进行手术治疗。
A guide wire is threaded through the femoral artery into the aorta during the procedure. A catheter containing the stent graft is guided over the wire and positioned inside the aneurysm. Then the stent graft is opened, forming a stable channel for blood flow.
手术期间，医生经股动脉将导丝穿入主动脉；通过导丝将含支架移植物的导管引导定位到动脉瘤内。然后，打开支架移植物，形成稳定的血液流动通道。
相关单词学习
Aneurysm
①发音和释义
an•eu•rysm/ˈænjərɪzəm/n. 动脉瘤
An abnormal widening of the walls of a blood vessel caused when the vessel grows weak.
单词 aneurysm 由下列成分构成
ana-（前缀）向上
+
eury- 扩张
+
-sm（后缀）状态
（图源：太帅图库）
Adventitia
ad•ven•ti•ti•a/ˌædvən'tɪʃɪə/n. 外膜
The membranous outer covering of an organ or a blood vessel.
（图源：太帅图库）
Dissection
dis•sec•tion/daɪˈsɛkʃən/n. 动脉夹层
The state of being dissected.
单词 dissection 由下列成分构成
dissect 夹层
+
-ion（后缀）…...行为，...…状态
（图源：太帅图库）
Femoral
fem•o•ral/ˈfɛmərəl/adj. 股骨的
Of, pertaining to, or situated at, in, or near the thigh or femur.
单词 femoral 由下列成分构成
femur 股骨
+
-al（后缀）与…有关的
（图源：太帅图库）
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