Mutational spectrum and genotype-phenotype correlation in Mexican patients with infantile-onset and late-onset Pompe disease.

Background: Pompe Disease (PD) is a metabolic myopathy caused by variants in the GAA gene, resulting in deficient enzymatic activity. We aimed to characterize the clinical features and related genetic variants in a series of Mexican patients.

Methods: We performed a retrospective study of clinical records of patients diagnosed with LOPD, IOPD or pseudodeficiency.

Infantile-onset Pompe disease in seven Mexican children.

Introduction: Pompe disease (PD) is a rare form of metabolic myopathy; the classic infantile presentation is severe, with death occurring before reaching one year of life, and the non-classical form is of slower progression and survival can exceed one year.

Objective: To describe the genotype and characteristics of Mexican patients with infantile-onset PD.

Methods: Seven patients with PD confirmed by enzymatic activity determination and GAA gene molecular analysis were included.