Acyanotic heart defect is a term that refers to a group of congenital heart conditions that are characterized by normal oxygen levels in the bloodstream. Synonyms for acyanotic heart defect include non-cyanotic heart disease, left-to-right shunt lesions, and congenital heart malformations. These conditions can vary in severity, with some causing mild symptoms while others can be life-threatening. Common types of acyanotic heart defects include ventricular septal defect, patent ductus arteriosus, and atrial septal defect. Early diagnosis and treatment are crucial for individuals with these conditions to prevent complications and improve outcomes.