Using LIBS as a diagnostic tool in pediatrics beta-thalassemia.

Beta-thalassemia major is a common inherited single-gene disorder. Thalassemic patients are at risk of changes in some important trace elements. To detect alteration of iron, copper, zinc, and calcium serum levels in beta-thalassemia major patients, laser-induced breakdown spectroscopy (LIBS) was used. This study was conducted on 40 beta-thalassemia major and 40 healthy young patients (age: 12-18 years old; male:female = 1:1). Venous blood samples were collected from both groups and analyzed for the serum levels of iron, calcium, zinc, and copper by exposing the samples to LIBS. The intensities of the tested elements were detected using the Kestrel Spec computer software and analyzed with an SPSS 25 program. Thalassemic patients had significantly higher serum iron (p = < 0.001) and copper (p = < 0.005) while they had significantly lower serum zinc (p = < 0.005) and calcium (p= > 0.005) when compared with control. Also, thalassemic patients had significantly lower body weight and height as they were less than the 3rd percentile by 82.5% and p < 0.001. LIBS is a safe and efficient tool to detect alteration of some serum trace elements in beta-thalassemia patients.