Abstract. This article provides information on congenital heart defects, including complete and partial transposition, aggravating factors, and causes of death. Congenital heart defects (CHDs) are structural abnormalities of the heart that are present at birth. These conditions can disrupt blood flow within the heart and can negatively impact the normal functioning of other organs and systems. Congenital heart defects are the most common birth defects, and their complexity ranges from simple problems to complex conditions requiring multiple surgeries. It is important to understand and treat CHDs as conditions that require specialized medical care and treatment.