TY - CHAP M1 - Book, Section TI - Atrial Septal Defect (ASD) A1 - Doherty, Gerard M. PY - 2010 T2 - Quick Answers Surgery AB - • A congenital heart lesion that increases pulmonary artery (PA) blood flow• Causes left to right shunt, results in lung infection, pulmonary vascular congestion, PA hypertension, right heart failure, pulmonary vasoconstriction, pulmonary vascular obstructive disease• Eisenmenger syndrome: Increased pulmonary hypertension to such extent that left to right shunt ceases and shunt becomes right to left, requiring heart-lung transplant• Inhaled nitric oxide, oxygen, or IV tolazoline reverses PA vasoconstriction• PA band is palliative and can reduce PA flow to alleviate RV failure and progression of pulmonary hypertension SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/11/10 UR - accesssurgery.mhmedical.com/content.aspx?aid=58093275 ER -