Eisenmenger's Syndrome

Eisenmenger's syndrome, which is named after the doctor who first described it, is a combination of two conditions. First, it involves having a communication, or hole, between two cardiac chambers that allows oxygenated blood to recirculate back into the right ventricle and to the lungs instead of flowing out of the left ventricle to the rest of the body. Over time, this extra blood flow to the lungs damages their vessels, causing high pressures or pulmonary hypertension that reverses the flow of blood, so the deoxygenated blood goes out to the rest of the body. Eisenmenger's syndrome refers to this combination of reversed blood flow with pulmonary hypertension. It results in cyanosis or low oxygen content in the blood and may eventually result in failure of the right ventricle. However, many patients live well into adulthood with the proper care.

The hole may be a ventricular septal defect, an atrial septal defect or a patent ductus arteriosus. A baby born with a single ventricle also may develop this condition.

Signs and symptoms of Eisenmenger's syndrome include:

  • Cyanosis, a blue tinge to the skin resulting from lack of oxygen
  • High red blood cell count
  • Swollen or clubbed finger tips
  • Fainting, called syncope
  • Heart failure
  • Arrhythmia or irregular heart rhythms
  • Bleeding disorders
  • Coughing up blood
  • Iron deficiency
  • Kidney problems
  • Stroke
  • Gout
  • Gallstones

An echocardiogram usually will show the defect and can measure the pressure in the right ventricle and the lungs. Heart catheterization, a procedure in which a narrow flexible tube called a catheter is threaded through the blood vessels into the heart, may be used to determine the size of the hole and to measure pressure within the heart.

Routine cardiac medications may have more side effects in patients with Eisenmenger's syndrome and should be prescribed with great caution. Your doctor also may suggest removing some blood a couple of times a year to reduce the amount of red blood cells, but this should only be done when there are symptoms if your blood count is extremely high. The survival rate for people with Eisenmenger's syndrome at age 25 is 42 percent.

Adult patients with Eisenmenger's syndrome should be seen by a cardiologist specializing in the care of adults with congenital heart disease to monitor for late complications. All patients will need to take antibiotics during subsequent surgeries or dental procedures to protect against endocarditis. Pregnancy and childbirth are extremely hazardous in women who have Eisenmenger's; they should not get pregnant but must choose contraception carefully to avoid blood pressure problems.

Show More

UCSF Research & Clinical Trials

Other Resources


Reviewed by health care specialists at UCSF Medical Center.

Related Information

UCSF Clinics & Centers

Heart & Vascular Center

Cardiology Clinic at Mount Zion
1600 Divisadero St., Suite C-244
San Francisco, CA 94115
Phone: (415) 885-3666
Fax: (415) 885-3676
Appointment information

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
Appointment information

Adult Congenital Heart Disease Clinic
535 Mission Bay Blvd. South
San Francisco, CA 94158
Phone: (415) 353-2873
Fax: (415) 353-2528
Appointment information

Patient Services