Acyanotic heart defects are heart problems that develop before or
at birth but do not normally interfere with the amount of oxygen or blood that
reaches the body's tissues. Acyanotic heart defects include ventricular septal
defect (VSD), atrial septal defect (ASD), patent ductus arteriosus (PDA),
pulmonary valve stenosis, aortic valve stenosis, and coarctation of the aorta.
Acyanotic heart defects do not usually cause cyanosis—a bluish tint
to the skin, lips, and nail beds due to reduced oxygen flow. If cyanosis
develops in a person with acyanotic heart defects, it is typically a result of
increased activity (such as crying and feeding) during which more oxygen is
October 11, 2011
John Pope, MD - Pediatrics & Larry A. Latson, MD - Pediatric Cardiology
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