評論
打印
Bradycardia
心動過緩
Don: Yaël, isn't normal heart rate somewhere between sixty to one hundred beats per minute？
Yaël,正常人的心跳次數(shù)是不是60~100次/分？
Yaël: That's right, Don. Why?
是啊。有什么問題嗎？
D: This would be the one time you don't correct me. My heart rate is only 44 beats per minute. That means I have bradycardia. Oh, Yaël, I may be dying.
難得有這么一次你沒有糾正我。我的心率僅僅是44次/分，我心動過緩！我的天，Yaël，我很可能就要死啦！
Y: Hold up! Yes, bradycardia is the term for a heart rate slower than about sixty beats per minute, but bradycardia doesn't necessarily mean you're not in perfectly good health. In well-conditioned athletes, bradycardia is a result of being in such good shape that the heart beats more efficiently, and so it doesn't need to beat as quickly.
穩(wěn)住啦！確實，心動過緩專指心臟跳動次數(shù)慢于60次/分。但是，心動過緩并不就是說你不健康。對于那些身體非常健康的運動員們來說，心動過緩的情況非常普遍。之所以會這樣是由于他們的心臟能夠進(jìn)行更加高效的跳動，因而，運動員心臟無需跳得有多快。
An athlete may have a heart rate as slow as thirty and not show any signs of problems. Also, deep relaxation, such as sleep, slows the heart down.
運動員的心率一般會低至30次/分，而他們的身體沒有任何問題。同時，在深度放松的情況下，就比如說睡覺，心率會自然而然的降低。
D: Yeah, yeah! Tell me about the bad news.
嗯，那給我講講不好的方面。
Y: Well, bradycardia can also be caused by certain medications, by other disorders such as hyperthyroidism, and by dysfunction of the sinus node. I don't mean the hollow space behind your nose, but the node inside your heart. The sinus node powers your heart by electrical impulses.
額，心動過緩也可能是由特殊的藥物治療、甲狀腺機能亢進(jìn)一類的機體功能紊亂、竇房結(jié)（位于右心房外膜上）功能障礙——竇房阻滯等原因引起的。竇房結(jié)并不是指你鼻后中空的地方（此處是因sinus的意思為“穴”，談話者將sinus與node分開來講），而是指心臟內(nèi)的一個結(jié)點。竇房結(jié)通過電脈沖為心臟提供動力。
Dysfunction of the sinus node then can cause the heart to beat too slowly to keep up with your body's need for blood. Lightheadedness, weakness, and fainting are symptoms that a heart may be beating too slowly. In such cases, doctors will remove problem medications, correct the underlying disorder, or insert a pacemaker that fills in for the sinus node.
竇房結(jié)的功能障礙會使心臟跳動過緩，而無法滿足身體對血液的需求。心臟如果跳動過緩就可能會出現(xiàn)頭暈、身體疲乏、暈厥等癥狀。如果出現(xiàn)這樣的癥狀，醫(yī)生會采取一定的藥物治療、調(diào)節(jié)機體功能，或是為竇房結(jié)安裝人工心臟起搏器。
If symptomatic bradycardia goes untreated, it could lead to death, but that's easy enough to prevent—just go see your doctor.
由心動過緩引發(fā)的癥狀治療無效時會導(dǎo)致死亡，但是，這樣的情況也相當(dāng)容易預(yù)防——看醫(yī)生就得嘞！
