双语字幕
Catheter Ablation
心导管射频消融术
Depending on activity level, the heart beats about 60 to 100 times per minute. It may be higher during exercise or lower at rest.
根据活动水平的不同，心脏跳动约 60-100 次/分钟。运动时，跳动次数可能更高，休息时，跳动次数较低。
A normal heart rate and rhythm ensures the delivery of oxygen-rich blood to all of the body's organs, such as the brain and lungs. A group of cells in the heart, called the cardiac conduction system, uses electrical impulses to control the speed and rhythm of each heartbeat.
正常心率和节律是富氧血液转运到脑和肺等身体所有器官的关键。心脏传导系统（心脏内的一组细胞）通过电脉冲调控每 1 次心跳的速度和节律。
An abnormal heart rate or rhythm, called an arrhythmia, occurs when there's a problem with the heart’s conduction system.
当心脏传导系统出现问题时，会发生心率或节律异常，即心律失常。
Tachycardia is a type of arrhythmia where the heart beats too fast. Fibrillation is a type of arrhythmia where the heart beats irregularly and may be too fast.
心动过速和房颤是心律失常的两种类型，心动过速指心跳过快，而房颤指心跳不规律，可能跳动过快。
For certain types of arrhythmias, a catheter ablation procedure may be necessary to stop the heart tissue from causing the arrhythmia.
对于某些类型的心律失常，导管消融术可能是阻断心脏组织引发心律失常的必要手段。
After numbing a small area in the groin with a needle, the doctor will insert a short hollow tube called a catheter sheath into the femoral vein. Next, a long, flexible tube, called a catheter, will be inserted through the sheath.
针刺麻醉腹股沟小块区域后，医生将短而中空的导管鞘插入股静脉；然后通过导管鞘插入细长软管。
The doctor will guide the catheter to the heart through a blood vessel that goes to the heart, called the inferior vena cava. The location and progress of the catheter will be monitored.
医生将引导导管通过下腔静脉，进入心脏，并监测导管的位置和进展。
When the catheter reaches the heart, the doctor will guide it to the area that is causing the arrhythmia. The doctor will find the problem areas using a 3-D map of the electrical activity of the patient's heart.
导管到达心脏时，医生将其引导到引发心律失常的区域；应用 3D 心脏电活动图，查找病变部位。
The tip of the catheter will emit either hot energy or cold energy to ablate the tissue in this area. Ablation makes the treated area stop working.
导管尖端会散发热量或冷能来消融该区域内的组织。消融会使治疗区域停止工作。
For an atrial arrhythmia, a doctor will ablate the atrial tissue causing it.
对于房性心律失常，医生将消融诱发病变的心房组织。
If the affected tissues are small, well-defined areas, the procedure is called focal ablation.
如果受影响的组织很小，边界清晰，则进行局灶性消融。
Or, if the affected tissues are larger areas with more complex rhythm disturbances, the doctor may perform a procedure called ablation remodeling.
另一方面，如果受影响的组织较大，节律复杂紊乱，则行消融重塑术。
Both types of ablation restore normal electrical impulses and prevent an arrhythmia from happening.
以上两种消融术均可恢复患者的正常电脉冲，预防心律失常。
If the cause of the arrhythmia is in the ventricle, the doctor can do either focal ablation or ablation remodeling to treat more complex arrhythmias of the ventricle.
如果是室性心律失常，医生可以行局灶性消融或消融重塑术来治疗更复杂的室性心律失常。
相关单词学习
Tachycardia
①发音和释义
tach•y•car•di•a/ˌtækɪˈkɑːdɪə/n. 心动过速
Excessively rapid heartbeat.
单词 tachycardia 由下列成分构成
tachy- （前缀）快速
+
-cardia 心脏
Arrhythmia
ar•rhyth•mi•a/əˈrɪðmiə/n. 心律不齐，心律失常
A disturbance in the rhythm of the heartbeat.
单词 arrhythmia 由下列成分构成
a-（前缀）无，没有
+
rhythm 规律，节律
+
-ia（后缀）情况，状况
（图源：太帅图库）
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