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What is neonatal lupus?
Neonatal lupus is not true lupus. It is a rare condition associated with anti-SSA/Ro and/or anti-SSB/La antibodies from the mother that affect the fetus. At birth, the baby may have a skin rash, liver problems, or low blood cell counts, but these symptoms typically disappear completely after six months with no lasting effects.
The most serious symptom is congenital heart block, which causes a slow heartbeat. Although very rare, newborns of women with lupus are at greater risk for developing this potentially life-threatening complication. Congenital heart block is usually detected when the fetus is between 18 and 24 weeks old. The condition does not disappear, and affected infants will eventually need a pacemaker.
With proper testing, physicians can now identify most at-risk mothers, and the infant can be treated at or before birth. Most infants of mothers with lupus are entirely healthy.
Learn more about congenital heart block in neonatal lupus
Jill Buyon, MD is a Rheumatologist at the New York University School of Medicine and a leading authority on congenital heart block in neonatal lupus. In this video, Dr. Buyon discusses her life-long effort to study this complication, shares what has been learned, and the next steps in the study of neonatal lupus.
The most common form of lupus—it’s what most people mean when they refer to “lupus.”
A form of lupus that is limited to the skin.
A lupus-like disease caused by certain prescription drugs.
A rare condition that affects infants of women who have lupus.