Right Diaphragm Paralysis Following Cardiac Radiofrequency Catheter Ablation for Inappropriate Sinus Tachycardia

Abstract
We describe a case of permanent right diaphragm paralysis following a radiofrequency cardiac ablation procedure. The relationship between the procedure and the phrenic nerve lesion is discussed with respect to the possible pathogenetic mechanisms. Radiofrequency current used in cardiac electrophysiology may cause serious thoracic nerve injuries. Means to avoid this complication are pointed out.