Hospital Donostia Arrythmia Unit, Intensive Care Department, Donostia, Spain.
Cardiol J. 2009;16(6):580-1.
The success of cardiac resynchronization therapy (CRT) depends on a high percentage of ventricular pacing. We present the electrocardiography and electrograms of a patient who underwent an implantable cardioverter-defibrillator (ICD) with CRT implantation showing a low percentage of ventricular pacing as a result of T wave oversensing of paced QRS. The patient showed no clinical improvement. We suggest finding a good sensitivity of F waves in induced ventricular fibrillation during ICD implantation in order to overcome the harm of possible oversensing.
心脏再同步治疗（CRT）的成功取决于较高的心室起搏比例。我们介绍了一位植入式心脏复律除颤器（ICD）联合 CRT 植入术患者的心电图和心内电图，结果显示由于起搏 QRS 波的 T 波过感知导致心室起搏比例较低。患者无临床改善。我们建议在 ICD 植入过程中寻找诱发室颤时 F 波的良好灵敏度，以克服可能过感知的危害。
