Infantile pompe disease presenting itself with severe hypertrophic cardiomyopathy: three case reports

Abstract

Infantile Pompe disease (glycogen storage disease type II) is a fatal disease that results from α glycosidase enzyme deficiency. Excessive undegradable intracellular glycogen deposition plays a role in the pathogenesis of the disease. Although excessive glycogen deposition involves many cells, clinical signs are limited mainly to the skeletal and cardiac muscle involvement. Therefore, it is a progressive disease that can cause death in early childhood due to extensive cardiomyopathy and weakness of respiratory muscles. We as well, aimed to present three cases, which had short P-R interval, large QRS complex and the signs of biventricular hypertrophy on ECG and prominent hypertrophic cardiomyopathy on transthoracic echocardiography in addition to respiratory muscle involvement.