心衰持续的心率失常(比如房颤)会使心脏在很长时间里无法有效地泵血，从而引起心衰。
Heart failure. This can result if your heart is pumping ineffectively for a prolonged period due to a bradycardia or tachycardia, such as atrial fibrillation.
他患有最常见的心率问题：房颤症。
He was suffering from atrial fibrillation, the most common form of heart rhythm problem.
房颤复律后心率的突然变化所致的心室复极延迟适应是致心律失常的一个潜在危险因素？
Delayed adaptation of ventricular repolarization after sudden changes in heart rate due to conversion of atrial fibrillation. A potential risk factor for proarrhythmia?
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