Objective: To determine the evolution of benign acute childhood myositis in children and to assess the relationship between creatinine phosphokinase (CPK) values and myoglobinuria.
Study design: A retrospective study of patients with benign acute childhood myositis seen in our tertiary care university-affiliated pediatric hospital between 2010-2013.
Results: A total of 38 patients were included in this study, all the patients have seen at the pediatric emergency department or our institution. 33 (87%) were male and mean age was 7.3 years (range 3-16years, median six years). Median level of CPK was 800 IU/L (range 500-5000 IU/L), none manifested hematuria or developed renal failure. There were no sequelae on follow up.
Conclusions: Acute childhood myositis is mostly a benign disease. Neurology findings are usually normal and CPK level is elevated. Rhabdomiolysis is a rare complication. Severe pathological conditions which must be excluded from the diagnosis can prevent unnecessary diagnostic investigation which are cost-effective and cause anxiety both to parents and children.
