Alexxandra Contreras is born with Hypoplastic Left Heart Syndrome (HLHS). This is a congenital heart defect characterized by the partial or complete failure of the left side of the heart to develop. A normally developed heart is composed of four chambers. J Mark Morales MD is able to intervene and save Alexxandra from this rare heart defect. For more information: jmarkmoralesmd.com/cardiothoracic-procedures/norwood-procedure.html

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