Dogs with Eisenmenger syndrome can live a good and long life?

Eisenmenger syndrome secondary to a ventricular septal defect with right-to-left shunting and erythrocytosis is often secondary to the development of pulmonary hypertension. Long-term treatment should be focused on controlling clinical signs, improving quality of life and prolonging survival of affected dogs. Selective pulmonary vasodilatory drugs are the first-line therapy indicated by the guidelines. In particular, sildenafil citrate is well tolerated, with no reported side effects, even at higher doses and can also help to manage erythrocytosis.