The effects of pneumopericardium during epicardial catheter ablation after dry pericardiocentesis on patients with ventricular arrhythmia.

The incidence of pneumopericardium during epicardial ablation was relatively high. However, if recognized early and managed properly, it is unlikely to progress to tension pneumopericardium. The occurrence of pneumopericardium during the procedure may not significantly affect the long-term prognosis of patients.