Constrictive pericarditis developed after childhood repair of ventricular septal defect

The patient was an 18‐year‐old man who had undergone surgical closure of ventricular septal defect at the age of 2 years. The patient was urgently hospitalized due to syncope after longstanding uneventful postoperative course, and diagnosed with atrial flutter. Echocardiography showed poor ventricular motion and markedly dilated both atriums. After termination of atrial flutter, ventricular motion improved remarkably; however, there was little improvement in heart failure. Although we suspected constrictive pericarditis, calcification observed on computed tomography was too localized to fully explain the cause of severe diastolic dysfunction. Based on the waveform of mitral annular tissue Doppler imaging, we were strongly convinced of the underlying physiology of constrictive pericarditis. Pericardial decortications markedly improved heart failure symptoms. This case emphasizes that constrictive pericarditis could be a life‐threatening complication in the remote phase after congenital heart surgery. It also emphasizes the importance of functional assessment by echocardiography to identify the cause–effect relation between imaging and clinical symptoms.