Task: Answer Verification
Input (English): Question: Do systemic inflammatory changes after pulmonary vein radiofrequency ablation alter stem cell mobilization?
Answer: Although PV isolation by RF ablation in patients with paroxysmal AF induces a systemic inflammatory response associated with myocardial necrosis, no alterations in circulating progenitor cells were observed. Thus, isolated myocardial necrosis may not be sufficient to account for progenitor cell mobilization.
Output (English): no