Pacemaker lead related myocardial perforation.

Permanent pacemaker (PPM) insertion is widely used to treat cardiac rhythm disorders; approximately 600,000 pacemakers are implanted annually in the US. Almost 9% of patients who receive a permanent pacemaker, however, experience a variety of medical complications such as infections, battery problems, programming issues, lead migration, or lead fracture. Moreover 1-2% of these patients will encounter severe lead-related problems within 30 days of their pacemaker insertion. In this report, we focus on an uncommon but serious complication of PPM insertion: right ventricular lead perforation leading to a pericardial effusion. Although lead perforation is a relatively rare occurrence, this event can be life-threatening, and should be considered in the differential diagnosis when patients present to the emergency department (ED) with relevant symptoms and recent PPM insertion. Specifically, patients who experience complications from pacemaker insertion may present to the ED with a variety of symptoms such as chest pain, syncope, dyspnea, or even dizziness. Pacemaker complications include pneumothorax, pleural and/or pericardial effusions, and infection, placing the patient at serious risk for significant harm. The evaluation of a lead-related issue typically involves chest radiography to visualize abnormal lead placement and check for a pneumothorax or pleural effusion, and a 12‑lead electrocardiogram (ECG) to detect pacing errors. We present the case of a patient who presented to the ED three days after his pacemaker insertion with chest pain and dyspnea; he was subsequently diagnosed with a lead perforation into the pericardial space resulting in a pericardial effusion.