Massive inferior wall aneurysm presenting with ventricular tachycardia and refractory cardiomyopathy requiring multiple interventions: A case report.

Background: Inferior wall left ventricular aneurysms are rare, they develop after transmural myocardial infarction (MI) and may be associated with poorer prognosis. We present a unique case of a large aneurysm of the inferior wall complicated by ventricular tachycardia (VT) and requiring surgical resection and mitral valve replacement.

Case summary: A 59-year-old male was admitted for VT one month after he had a delayed presentation for an inferior ST-segment elevation MI and was discovered to have a large true inferior wall aneurysm on echocardiography and confirmed on coronary computed tomography (CT) angiography. Due to the sustained VT, concern for aneurysm expansion, and persistent heart failure symptoms, the patient was referred for surgical resection of the aneurysm with patch repair, mitral valve replacement, and automated implantable cardioverter defibrillator insertion with significant improvement in functional and clinical status.

Conclusion: Inferior wall aneurysms are rare and require close monitoring to identify electrical or contractile sequelae. Coronary CT angiography can outline anatomic details and guide surgical intervention to ameliorate life-threatening complications and improve performance status.