Task: Answer Verification
Input (English): Question: Does right ventricular lead positioning influence the benefits of cardiac resynchronization therapy in patients with heart failure and atrial fibrillation?
Answer: In this randomized controlled study, the exact RV pacing site, either apex or outflow tract, did not influence the benefits of CRT in a group of patients with chronic heart failure and AF. ClinicalTrials.gov ID: NCT00457834.
Output (English): no