Congenital Defects and Disease

Congenital heart disease is a term that describes a number of different conditions caused by abnormal or disordered heart development before birth. Although congenital heart disease, by definition, is present at birth, its effects may not be obvious nor may present for many years.

A congenital heart defect most often occurs as an isolated incidence and is generally not associated with other diseases, there are a few genetic and chromosomal syndromes that can also cause heart defects, including:

  • Down syndrome
  • Ellis-van Creveld syndrome
  • Marfan syndrome
  • Noonan syndrome
  • Trisomy 13
  • Turner's syndrome

Drugs, chemicals, and infections during pregnancy may also cause congenital heart abnormalities. In infants, fetal rubella, maternal alcohol use (fetal alcohol syndrome), and use of retinoic acid (for acne), may also cause of congenital heart disease. In addition, if a pregnant woman has congenital heart disease, she should notify her doctor so her fetus may be checked during the pregnancy.


Surgical treatments are tailored to correct the specific congenital abnormality. The most common include closing a patent foramen ovale and/or an atrial septal defect (ASD).


Please note: The skilled cardiologists at MedStar Harbor Hospital can diagnose and treat most heart conditions on site. Patients who need advanced diagnostic testing or heart surgery will be referred to MedStar Heart & Vascular Institute at MedStar Union Memorial Hospital, part of our MedStar family of providers, as appropriate.

Location Information

To schedule an appointment, please call 


MedStar Harbor Hospital
3001 South Hanover St.
Outpatient Center, Suite 216
Baltimore, MD 21225