劍橋詞典a problem in which the heart beats faster than normal and in a way that is not regular , resulting in the atria (= the top spaces ) of the heart not emptying properly 心房顫動，心房纖顫 Patients with atrial fibrillation may be fitted with pacemakers . 罹患心房顫動的病人可能適郃置入起搏器。 返回 atrial fibrillation