The four defects characteristic of this condition include:
Babies with tetralogy are blue at birth or soon after, and have detectable heart murmurs, an extra sound in the heartbeat. Activity such as crying may exacerbate the condition and babies may have shortness of breath or may faint. Babies also may experience a "tetralogy spell" in which oxygen levels drop suddenly leading to irritability and then sleepiness or unresponsiveness.
Most adults with tetralogy of Fallot have had surgery during childhood. The adult with unrepaired tetralogy usually has milder cyanosis and a heart murmur or extra heart sound.
Reviewed by health care specialists at UCSF Medical Center.
Cardiovascular Care and Prevention Center at Mission Bay
535 Mission Bay Blvd. South
San Francisco, CA 94158
Phone: (415) 353-2873
Fax: (415) 353-2528