Nutritional Issues among Children with Duchenne Muscular Dystrophy—Incidence of Deficiency and Excess Body Mass

Abstract

The progression of Duchenne muscular dystrophy (DMD)requires the assessment of nutritional disturbances at each stage of the disease. The purpose of this study was to assess the nutritional status in various ages of boys with DMD using screening and in-depth evaluation methods. Body composition by Dual X-ray Absorptiometry (DXA), basal metabolic rate (BMR) by indirect calorimetry, a questionnaire of nutritional status—Pediatric Nutrition Screening Tool (PNST)—and laboratory parameters were performed. In the cohort of 93 boys aged 8.54 (5.9–12.6 years), inappropriate nutritional status occurred in 41.8% of boys (underweight 11.8%, overweight 16.0%, and obesity 14.0%). In the 10–13 age group, the occurrence of overweight and underweight was the highest. Based on PNST, 15.1% of patients were at nutritional risk (≥2 points)—the most in the 14–17 age group (29%). A negative correlation was identified between PNST and z-scores of body weight, BMI, and FFMI (r Spearman = −0.49, −0.46, and −0.48, respectively; p p < 0.028). Inappropriate nutritional status occurred in almost half of the children with DMD. The age group in which nutritional disorders were most frequently identified was 10–13 years old. PNST could be considered a tool for screening malnutrition after testing a larger group of DMD patients.

Keywords

• nutritional status
• Duchenne muscular dystrophy
• screening nutritional assessment
• malnutrition
• overweight