Last day of #CHDweek2017!! We will cover Hypoplastic Right Heart Syndrome to close up the week. #HRHS Hypoplastic right heart syndrome refers to underdevelopment of the right sided structures of the heart. These defects cause inadequate blood flow to the lungs and thus, a blue baby. The major problem is pulmonary valve atresia (absence). This valve normally opens and closes to let blood flow to the pulmonary artery. Secondary problems include a very small (hypoplastic) right ventricle (lower chamber which normally pumps blood to the lungs); a small tricuspid valve (this valve allows blood to flow into the right ventricle) and a small (hypoplastic) pulmonary artery. Also, the blood flow into the coronary arteries may be abnormal causing damage to the heart muscle. This defect requires surgery after birth to create an artificial connection (shunt) between the aorta and the pulmonary artery to deliver blood to the lungs. There is no cure for #CHD. Children with a CHD will require lifelong care and/or follow up. Second image of healthy heart to compare. #CHDWeek #HRHS.