Cardiac resynchronization therapy(CRT) has became an alternative treatment in patients with severe medically refractory heart failure in recent years.

• 心脏同步化治疗(CRT)已经成为严重心力衰竭以及内科难治性心力衰竭患者的一种可选择性的治疗方法,几项较大的研究证明了CRT的有效性。