Oh my gosh, I'm so sorry. I would get a second opinion! Infants born with this require intervention including medication and surgery. If this is done, once past the first year, they have a good ability to live a full life. But that first year is critical. https://www.mayoclinic.org/diseases-conditions/hypoplastic-left-heart-syndrome/symptoms-causes/syc-20350599 Are they recommending you terminate?