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Post-cardiac injury syndrome (PCIS) as a delayed complication of permanent pacemaker implantation has rarely been reported in the literature. A 67-year-old man who recently underwent a dual chamber permanent pacemaker implantation came to the hospital for increasing dyspnea and chest discomfort. A diagnosis of pericarditis was made, and the patient was discharged on ibuprofen therapy. He presented to our facility a month later with worsening dyspnea and chest discomfort despite recommended therapy. A computerized tomography (CT) scan of the chest revealed a large right-sided pleural effusion, requiring chest tube placement and drainage. A pleural fluid analysis revealed exudative effusion with elevated pH. The pleural fluid analysis was negative for infectious etiology. A perforation of the atrial wall was considered given the proximity of the atrial pacer lead and overlying pericardial effusion. However, no conclusive evidence of cardiac chamber perforation was found on echocardiogram or CT scan. A pacemaker interrogation was normal. A repeat CT scan showed the resolution of pleural effusion, and the chest tube was discontinued. A possible explanation for the absence of predominant pericardial findings may be the previous use of non-steroidal anti-inflammatory therapy.

Large Unilateral Pleural Effusion with Pacemaker-associated Post-cardiac Injury Syndrome