Case Report: do heart transplant candidates benefit from mechanically supported revascularization?

Recently published studies suggest that percutaneous coronary intervention (PCI) has no significant impact on outcomes in patients with heart failure and stable coronary artery disease. The use of percutaneous mechanical circulatory support is growing, but its value is still uncertain. If large areas of viable myocardium are ischemic, the benefit from revascularization should be evident. In such instances, we should strive for complete revascularization. The use of mechanical circulatory support in such cases is vital because it provides hemodynamic stability throughout the complex procedure.

We present a case of a 53-year-old male heart transplant candidate with type 1 diabetes mellitus, initially considered unsuitable for revascularization and qualified for heart transplantation, transferred to our center due to acute decompensated heart failure. At this time, the patient had temporary contraindications for heart transplantation. As the patient was considered no-option, we have decided to reassess the possibility of revascularization. The heart team opted for a high-risk mechanically supported PCI with the aim of complete revascularization. A complex multivessel PCI was performed with optimal effect. The patient was weaned off dobutamine on the second day post-PCI. Four months post-discharge, he remains stable, is in NYHA II class, and has no chest pain. Control echocardiography showed improved ejection fraction. The patient is not a heart transplant candidate anymore.

This case report shows that we must strive for revascularization in select heart failure cases. The outcome of this patient suggests that heart transplant candidates with potentially viable myocardium should be considered for revascularization, especially as the shortage of donors persists. In the most complex coronary anatomy and severe heart failure, mechanical support in the procedure might be essential.