Successful heart transplantation in a patient with glycogen storage disease.

BACKGROUND

Polyglucosan body myopathy is a type of glycogen storage disease characterized by abnormal glycogen structure formation. Progressive heart failure is the primary cause of mortality in affected patients.

CASE SUMMARY: Here, we present a rare case of an Azeri teenage boy with advanced, decompensated heart failure associated with a novel sporadic variant mutation in the RBCK1 gene, displaying a polyglucosan body myopathy phenotype. Following multidisciplinary consensus, the patient underwent successful heart transplantation, resulting in discharge two weeks post-transplantation and excellent health at a one-year follow-up.

DISCUSSION: Heart transplantation represents the ultimate treatment option for patients with advanced heart failure and increased mortality risk. It remains a viable and beneficial strategy, even for those with cardiomyopathy secondary to multi-organ diseases.