TY - CHAP M1 - Book, Section TI - Acyanotic Congenital Heart Disease A1 - Deutsch, Nina A2 - Freeman, Brian S. A2 - Berger, Jeffrey S. PY - 2016 T2 - Anesthesiology Core Review: Part Two Advanced Exam AB - Congenital heart disease (CHD) consists of both shunting and/or obstructive lesions. In the presence of these defects, blood flow follows the path of least resistance. The amount of shunting between two circulatory beds is dependent on the relative gradient between these two systems as well as the size of the shunt. When there is an unrestrictive shunt, the amount and direction of blood flow are dependent solely on the difference in vascular resistances between the two sides. Any restriction (e.g., stenosis) typically serves as the point of maximal resistance, which limits the relative blood flow between two areas. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=1135742340 ER -