hypoplastic left heart syndrome

Hypoplastic left heart syndrome (HLHS) is a serious birth defect where the left side of the heart is underdeveloped and cannot effectively pump blood to the body. Because of this, blood flow relies on openings between heart chambers and other blood vessels, which can be unstable. Without treatment, it is life-threatening. Typically, babies undergo multiple surgeries or a heart transplant to improve blood flow and survival chances. HLHS emphasizes the importance of early diagnosis and specialized pediatric care, as the condition significantly impacts heart function and requires ongoing medical management.