Eisenmenger’s syndrome history and symptoms

Symptoms
Common symptoms and diagnostic criteria for Eisenmenger's syndrome includes:
 * An underlying heart defect that initially allows a left-to right shunt between the left and right sides of the heart
 * The development of pulmonary hypertension
 * Polycythemia, an increase in the number of red blood cells
 * Finally, a reversal of the left-to-right shunt so that there is a right-to-left shunt