Hypoplastic left heart syndrome history and symptoms

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Priyamvada Singh, M.B.B.S.[2], Cafer Zorkun, M.D., Ph.D. [3], Keri Shafer, M.D. [4]; Assistant Editor(s)-In-Chief: Kristin Feeney, B.S.[5]

At first, a newborn with hypoplastic left heart may appear normal. Symptoms usually occur in the first few hours of life, although it may take up to a few days to develop symptoms. Common symptoms include cyanosis, dyspnea, and poor circulation.

• Bluish (cyanosis) or poor skin color
• Cold extremities
• Lethargy
• Poor suckling and feeding
• Palpitations
• Rapid breathing
• Shortness of breath
• Sudden death

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