Coil embolization for ruptured coronary pseudoaneurysm causing haemopericardium: a case report

BACKGROUND: Coronary artery pseudoaneurysm is a rare disease that can rupture and cause haemopericardium. It can occur principally as a complication after coronary artery instrumentation, but it can also result from trauma. CASE SUMMARY: A 15-year-old male patient with a history of spontaneous pneumothoraces treated twice with video-assisted thoracoscopic thoracic surgery presented with pericarditis and increasing haemopericardium. During the hospitalization, he had developed cardiogenic shock and he underwent emergent pericardiocentesis. Coronary angiography revealed a small right coronary artery pseudoaneurysm. We successfully coil embolized the pseudoaneurysm. DISCUSSION: This is a rare case of a ruptured coronary artery pseudoaneurysm associated with prior tube thoracostomy. The treatments for a coronary pseudoaneurysm should be tailored based on the pathologic and anatomical characteristics.