Cyanotic heart defects are abnormal openings between the heart chambers that allow oxygen-poor blood from the right side of the heart to mix with oxygen-rich blood from the left side of the heart. When a large amount of oxygen-poor blood mixes with oxygen-rich blood, it causes a bluish tint (cyanosis) in the skin, lips, and nail beds.
Current as of:
December 6, 2017
Author:
Healthwise Staff
Medical Review:
Adam Husney, MD - Family Medicine & John Pope, MD, MPH - Pediatrics & Martin J. Gabica, MD - Family Medicine & Larry A. Latson, MD - Pediatric Cardiology, Critical Care Medicine