Congenitally corrected transposition of the great arteries (ccTGA) is a rare heart defect where a "double discordance" in connections allows for physiologically normal blood flow, yet places the right ventricle in the high-pressure systemic position. This anatomical arrangement often leads to long-term complications, including progressive heart failure, tricuspid valve regurgitation, and serious electrical rhythm disturbances. Diagnostic monitoring through advanced imaging and biomarkers like NT-proBNP is essential for managing adult patients, as the systemic right ventricle is not naturally designed for lifelong endurance. Surgical options range from physiologic repairs to complex "double switch" anatomic corrections, though neither strategy completely eliminates the risk of late-stage cardiac decline. Management also requires specialized care during pregnancy, where the heart's increased workload can trigger irreversible functional deterioration. Ongoing research focuses on genetic factors and innovative pacing techniques, such as cardiac resynchronisation therapy, to improve survival and life quality for those living with this heterogeneous condition.