ACADS and short chain acyl-CoA dehydrogenase deficiency: In 14 patients with SCAD deficiency, nine mutations were detected and the c.1031A > G was the most common mutation in ACADS (MIM* 606885) gene, accounting for 42.9% of mutational alleles and 71.4% of patients, followed by c.164C > T (17.9% and 28.6%) and c.1130C > T (10.7% and 21.4%).