ABSTRACT

Mucopolysaccharidosis (MPS) type VI or Maroteaux Lamy syndrome is an autosomal recessive lysosomal storage disorder resulting from a deficiency of arylsulfatase B. Clinical features and severity vary. We evaluated clinical, laboratory and follow-up findings of 11 patients diagnosed with MPS type VI between the years 1996-2016 by the Ege University Faculty of Medicine, Department of Pediatrics, Child Health and Disease, Division of Metabolism and Nutrition to raise awareness in clinicians.

Eleven patients with MPS type VI between the years1996-2016 were evaluated by the Ege University Faculty of Medicine, Department of Pediatrics, Child Health and Disease Division of Metabolism and Nutrition. We analyzed the diagnostic, clinical, laboratory and follow-up findings of the patients.

Eleven patients (55% male) were evaluated. The mean age was 5.38 years at diagnosis. The most common presenting symptoms were progressive coarsening of the face (82%), reccurent upper respiratory tract disorders (27%) and bone deformities (27%). All patients had mitral regurgitation, 27% had aortic regurgitation, 9% had tricuspid regurgitation and only one patient had pulmonary hypertension. Two patients, who could not be treated, had severe cardiac and obstructive type pulmonary disorders. Enzyme replacement therapy (galsulfase) has been performed in various durations since 2006.

Early diagnosis of MPS VI is imperative due to the availability of galsulfase shown to slow the progression of the disease with a more significant impact on clinical outcomes when the the treatment is initiated early.